| 1. |
A novel film based on a cellulose/sodium alginate/gelatin composite activated with an ethanolic fraction of oleo gum resin.
Bhatia S, Shah YA, Al-Harrasi A, Ullah S, Anwer MK, Koca E, Aydemir LY, Khan MR
and its derivatives exhibit notable bioactive properties, which have been the subject of extensive scientific research; however, their potential applications in food packaging remain largely untapped. In the current study, cellulose, sodium alginate, and gelatin composite edible films were fabricated with the addition of different concentrations (0.2% and 0.3%) of the ethanolic fraction of oleo gum resin (BSOR). The resultant films were examined for their physical, chemical, mechanical, barrier, optical, and antioxidant properties. Moreover, the films were characterized using Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR) to study the impact of incorporating BSOR on the morphological, crystalline, and chemical properties of the films. The addition of BSOR increased the film thickness (0.026-0.08 mm), water vapor permeability (0.210-0.619 (g.mm)/(m.h.kPa), and the intensity of the yellow color (3.01-7.20) while reducing the values of both tensile strength (6.67-1.03 MPa) and elongation at break (83.50%-48.81%). SEM and FTIR analysis confirmed the interaction between the BSOR and film-forming components. The antioxidant properties of the edible films were significantly increased with the addition of BSOR. The comprehensive findings of the study demonstrated that BSOR possesses the potential to serve as an efficient natural antioxidant agent in the fabrication of edible films.
Food Sci Nutr. 2024 Feb;12(2):1056-1066.
PMID: 38370062 [PubMed - as supplied by publisher]
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| 2. |
Improved antimicrobial activities of essential oils nanoencapsulated into hydroxypropyl-beta-cyclodextrins.
Alabrahim OAA, Alwahibi S, Azzazy HME
Natural antimicrobials have recently gained increasing interest over synthetic antimicrobials to overcome foodborne pathogens and food microbial contamination. Essential oils (EOs) obtained from resins (BO) were utilized for respiratory disorders, rheumatoid arthritis, malignant tumors, and viral infections. Like other EOs, the therapeutic potential of BO is hindered by its low solubility and bioavailability, poor stability, and high volatility. Several studies have shown excellent physicochemical properties and outstanding therapeutic capabilities of EOs encapsulated into various nanocarriers. This study extracted BO from resins hydrodistillation and encapsulated it into hydroxypropyl-beta-cyclodextrins (HPβCD) using the freeze-drying method. The developed inclusion complexes of BO (BO-ICs) had high encapsulation efficiency (96.79 ± 1.17%) and a polydispersity index of 0.1045 ± 0.0006. BO-ICs showed presumably spherical vesicles (38.5 to 59.9 nm) forming multiple agglomerations (136.9 to 336.8 nm), as determined by UHR-TEM. Also, the formation and stability of BO-ICs were investigated using DSC, FTIR, FE-SEM, UHR-TEM, H NMR, and 2D HNMR (NOESY). BO-ICs showed greater thermal stability (362.7 °C). Moreover, compared to free BO, a remarkable enhancement in the antimicrobial activities of BO-ICs was shown against three different bacteria: , , and . BO-ICs displayed significant antibacterial activity against with an MIC90 of 3.93 mg mL and an MIC50 of 0.57 mg mL. Also, BO-ICs showed an increase in BO activity against with an MIC95 of 3.97 mg mL, compared to free BO, which failed to show an MIC95. Additionally, BO-ICs showed a more significant activity against with an MIC95 of 3.92 mg mL. BO encapsulation showed significantly improved antimicrobial activities owing to the better stability, bioavailability, and penetration ability imparted by encapsulation into HPβCD.
Nanoscale Adv. 2024 Jan;6(3):910-924.
PMID: 38298595 [PubMed - as supplied by publisher]
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| 3. |
Innovative microwave-assisted biosynthesis of copper oxide nanoparticles loaded with platinum(ii) based complex for halting colon cancer: cellular, molecular, and computational investigations.
Sedky NK, Fawzy IM, Hassan A, Mahdy NK, Attia RT, Shamma SN, Alfaifi MY, Elbehairi SE, Mokhtar FA, Fahmy SA
In the current study, we biosynthesized copper oxide NPs (CuO NPs) utilizing the essential oils extracted from oleogum resin, which served as a bioreductant and capping agent with the help of microwave energy. Afterwards, the platinum(ii) based anticancer drug, carboplatin (Cr), was loaded onto the CuO NPs, exploiting the electrostatic interactions forming Cr@CuO NPs. The produced biogenic NPs were then characterized using zeta potential (ZP), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction spectroscopy (XRD), and Fourier transform infrared spectroscopy (FTIR) techniques. In addition, the entrapment efficiency and release profile of the loaded Cr were evaluated. Thereafter, SRB assay was performed, where Cr@CuO NPs demonstrated the highest cytotoxic activity against human colon cancer cells (HCT-116) with an IC of 5.17 μg mL, which was about 1.6 and 2.2 folds more than that of Cr and CuO NPs. Moreover, the greenly synthesized nanoparticles (Cr@CuO NPs) displayed a satisfactory selectivity index (SI = 6.82), which was far better than the free Cr treatment (SI = 2.23). Regarding the apoptosis assay, the advent of Cr@CuO NPs resulted in an immense increase in the cellular population percentage of HCT-116 cells undergoing both early (16.02%) and late apoptosis (35.66%), significantly surpassing free Cr and CuO NPs. A study of HCT-116 cell cycle kinetics revealed the powerful ability of Cr@CuO NPs to trap cells in the Sub-G1 and G2 phases and impede the G2/M transition. RT-qPCR was utilized for molecular investigations of the pro-apoptotic (Bax and p53) and antiapoptotic genes (Bcl-2). The novel Cr@CuO NPs treatment rose above single Cr or CuO NPs therapy in stimulating the p53-Bax mediated mitochondrial apoptosis. The cellular and molecular biology investigations presented substantial proof of the potentiated anticancer activity of Cr@CuO NPs and the extra benefits that could be obtained from their use.
RSC Adv. 2024 Jan;14(6):4005-4024.
PMID: 38288146 [PubMed - as supplied by publisher]
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| 4. |
Pectin/sodium alginate films tailored with Acetyl-11-keto-beta-boswellic acid for active packaging.
Bhatia S, Shah YA, Al-Harrasi A, Jawad M, Khan TS, Alam T, Dıblan S, Koca E, Aydemir LY
The present study aimed to develop food packaging films by using a combination of pectin (PE) and sodium alginate (SA) enriched with Acetyl-11-keto-beta-boswellic acid (AKBA) as a functional or active ingredient. The fabricated films underwent comprehensive evaluation of their morphological, chemical, mechanical, barrier, optical, thermal, antioxidant, and antimicrobial properties. SEM and FTIR analysis showed that AKBA had good compatibility with film-forming components. The AKBA-loaded film samples exhibited a decrease in their barrier properties and tensile strength, but enhancements in both elongation at break and thickness values was observed. With the addition of AKBA, a significant increase (p < 0.05) in the ultraviolet barrier properties of the films and total colour variation (ΔE) was observed. TGA analysis of the films unveiled an improvement in thermal resistance with the incorporation of AKBA. Moreover, the films loaded with AKBA exhibited potent antioxidant activity in the ABTS and DPPH assay methods. Disk diffusion analysis showed the antimicrobial activity of AKBA-loaded films against P. aeruginosa, highlighting the potential of AKBA as a natural antimicrobial agent for the safety of food products. The results demonstrate the practical application of PE and SA active films loaded with AKBA, particularly within the food packaging industry.
Int J Biol Macromol. 2024 Mar;261(Pt 1):129698.
PMID: 38272421 [PubMed - indexed for MEDLINE]
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| 5. |
Formulation and Evaluation of Furosemide Floating Matrix Tablets Using Resin as Matrix Forming Polymer.
Yehualaw A, Tafere C, Yilma Z, Abrha S
The stomach and upper part of the small intestine are where furosemide is primarily absorbed when treating edema brought on by congestive heart failure (CHF), hepatic cirrhosis, renal impairment, and nephrotic syndrome. This narrow absorption window is responsible for furosemide's limited oral bioavailability. So creating a gastroretentive floating tablet could be beneficial. Natural polymers are advised for use in medication delivery because they are readily available in nature, biodegradable, relatively inexpensive, biocompatible, and nontoxic. Olibanum is a natural plant-based polymer obtained from Boswellia genus of trees and mainly composed of alcohol-soluble resin (65-85%). Ethiopia is rich in Boswellia species, with Boswellia papyrifera being the most important oleo-gum resin-producing tree species. In order to formulate a gastroretentive floating matrix tablet of furosemide, this study looked at the use of naturally occurring, locally available B. papyrifera resin as a matrix-forming polymer. By directly compressing B. papyrifera resin and HPMC K4M as matrix-forming polymers and sodium bicarbonate as a gas-generating agent, floating matrix tablets were created. The effects of the formulation variables polymer type, polymer concentration, polymer ratio, and percentage of the floating agent on the floating lag time, total floating time (duration), and cumulative drug release in 12 hours were investigated. Furosemide floating tablets formulated employing higher (40%) polymer concentrations (olibanum resin, HPMC K4M, or in combination) and 10% sodium bicarbonate as gas-generating agent demonstrated a floating lag time of less than 6 minutes and a sustained release with a total floating time of more than 12 hours. Comparing the release characteristics of floating tablets made with 40% of a total polymer and 10% of NaHCO3 revealed that the medicine is released very slowly when polymers were combined. The matrix-forming polymer, olibanum resin, obtained from , was effectively used to make furosemide floating matrix tablets. The olibanum resin from can therefore be used as a potential substitute matrix-forming polymer in the production of effervescent floating matrix tablets.
Biomed Res Int. 2023;2023():4322375.
PMID: 37929241 [PubMed - indexed for MEDLINE]
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| 6. |
Biosynthesis of MgO Nanoparticles and Their Impact on the Properties of the PVA/Gelatin Nanocomposites for Smart Food Packaging Applications.
Rabee M, Elmogy SA, Morsy M, Lawandy S, Zahran MAH, Moustafa H
Fabricating active and intelligent packaging materials has become the highest demand for catering to market needs, especially after the COVID-19 pandemic, for ensuring food safety. Thus, the wider objective of this article was to promote active and smart packaging biofilms possessing antibacterial and humidity-sensing properties for sustainable poly(vinyl alcohol) (PVA)/gelatin (Ge) reinforced with biosynthesized magnesium nanoparticles (MgO NPs) by a solvent-casting route. The UV-visible spectrum has been utilized to determine the optimized biosynthesized MgO NPs and then the nanostructure of optimized MgO NPs investigated by varying techniques such as XRD, SEM-EDX, TEM, FT-IR, and thermogravimetric analysis. Four MgO NPs proportions (i.e., 1, 3, 5, and 10 wt %) were used to fabricate PVA/Ge biofilms. In the biofilms system, the tensile results showcased that the nanocomposite film containing 5 wt % of MgO NPs had the highest tensile strength value (i.e., 22.10 MPs) compared to the other biofilms or the unfilled blank (i.e., 6.30 MPs). Correspondingly, the humidity-sensing data revealed that the PVA/Ge-1% MgO NPs sensor had higher sensitivity over a broad range of relative humidity from (7-97% RH) and at 100 Hz. Additionally, the hydrophobicity of biofilms, measured by water contact angle, UV-stability, and antioxidant and antibacterial properties was also analyzed to possibly use these biofilms in active food packaging with extended shelf life of foodstuffs. However, the PVA/Ge-1% MgO NPs biofilm was predominately found to possess attractive sensing properties and could be considered as a sensor for intelligent food packaging.
ACS Appl Bio Mater. 2023 Nov;6(11):5037-5051.
PMID: 37909223 [PubMed - indexed for MEDLINE]
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| 7. |
[Optimal processing technology of Zhangbang vinegar-processed Olibanum with multi-indicator-response surface methodology and anticoagulant effect evaluation].
Xiao XL, Yan GM, Gong QF, Yu H, Yang DY, Wu XY, Zhu YH, Peng XL
This study first optimized the processing technology for Zhangbang vinegar-processed Olibanum and investigated its in vitro anticoagulant activity. A multi-index-response surface methodology was used, with yield, powder yield, and the relative percentage of the content of six non-volatile components [11-keto-boswellic acid(KBA), 3-acetyl-11-keto-boswellic acid(AKBA), β-elemonic acid, α-boswellic acid(α-BA), β-boswellic acid(β-BA), and α-acetyl-boswellic acid(α-BA)] and three volatile components(octyl acetate, incensole, and incensole acetate) as evaluation indicators. Analytical hierarchy process(AHP) combined with coefficient of variation method was used to calculate the weight of each indicator and calculate the comprehensive score(OD). Furthermore, response surface methodology was used to investigate the effects of frying temperature(A), burning time(B), rice vinegar dosage(C), and steaming time(D) on the processing technology of vinegar-processed Olibanum. Vinegar-steamed Olibanum was prepared according to the optimal processing technology for in vitro anticoagulant experiments. The results showed that the weights of octyl acetate, incensole, incensole acetate, KBA, AKBA, β-elemonic acid, α-BA, β-BA, α-ABA, yield, and powder yield were 0.358 2, 0.104 5, 0.146 4, 0.032 9, 0.123 7, 0.044 4, 0.022 1, 0.042 2, 0.110 1, 0.012 2, and 0.0032, respectively. The optimal processing technology for Zhangbang vinegar-processed Olibanum was as follows. Olibanum(50 g) with a particle size of 1-5 mm was continuously stir-fried at a low heat of 150-180 ℃ until in a gel-like state, ignited for burning for 15 s, sprayed with 7.5 g of rice vinegar(15%), and steamed for 3 min without fire. Subsequently, the cover was removed, and the product was continuously stir-fried at 150-180 ℃ until in a soft lump shape, removed, cooled, and crushed. The results of the in vitro anticoagulant experiments showed that compared with the blank group, both Olibanum and vinegar-processed Olibanum significantly prolonged the activated partial thromboplastin time(APTT), thrombin time(TT), and prothrombin time(PT) of rat platelet-poor plasma(PPP), and the effect of vinegar-processed Olibanum was significantly better than that of Olibanum(P<0.05). The optimized processing technology for Zhangbang vinegar-processed Olibanum is stable, feasible, and beneficial for the further development and utilization of Olibanum slices. At the same time, using the content of volatile and non-volatile components, yield, and powder yield as indicators, and verifying through pharmacological experiments, the obtained results are more reasonable and credible, and have positive guiding significance for the clinical application of characteristic processed Olibanum products.
Zhongguo Zhong Yao Za Zhi. 2023 Aug;48(16):4402-4412.
PMID: 37802866 [PubMed - indexed for MEDLINE]
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| 8. |
Biological properties of experimental dental alginate modified for self-disinfection using green nanotechnology.
Singer L, Karacic S, Szekat C, Bierbaum G, Bourauel C
OBJECTIVES: Disinfection of alginate impression materials is a mandatory step to prevent cross-infection in dental clinics. However, alginate disinfection methods are time-consuming and exert a negative impact on accuracy and mechanical properties. Thus, this study aimed to prepare disinfecting agents (CHX and AgNO) and silver nanoparticles reduced by a natural plant extract to produce a self-disinfecting dental alginate.
METHODS: Conventional alginate impression material was used in this study. Silver nitrate (0.2% AgNO group) and chlorohexidine (0.2% CHX group) solutions were prepared using distilled water, and these solutions were later employed for alginate preparation. Moreover, a 90% aqueous plant extract was prepared from Boswellia sacra (BS) oleoresin and used to reduce silver nitrate to form silver nanoparticles that were incorporated in the dental alginate preparation (BS+AgNPs group). The plant extract was characterized by gas chromatography/mass spectrometry (GC/MS) analysis while green-synthesized silver nanoparticles (AgNPs) were characterized by UV-visible (UV-vis) spectroscopy and scanning electron microscopy (SEM). An agar disc diffusion assay was used to test the antimicrobial activity against Candida albicans, Streptococcus mutans, Escherichia coli, methicillin-resistant and susceptible Staphylococcus aureus strains, and Micrococcus luteus. Agar plates were incubated at 37 ± 1 °C for 24 h to allow microbial growth. Diameters of the circular inhibition zones formed around each specimen were measured digitally by using ImageJ software.
RESULTS: Chemical analysis of the plant extract revealed the presence of 41 volatile and semi-volatile active compounds. UV-Vis spectrophotometry, SEM, and EDX confirmed the formation of spherical silver nanoparticles using the BS extract. CHX, AgNO, and the BS+AgNPs modified groups showed significantly larger inhibition zones than the control group against all tested strains. BS+AgNPs and CHX groups showed comparable efficacy against all tested strains except for Staphylococcus aureus, where the CHX-modified alginate had a significantly higher effect.
CONCLUSIONS AND CLINICAL RELEVANCE: CHX, silver nitrate, and biosynthesized silver nanoparticles could be promising inexpensive potential candidates for the preparation of a self-disinfecting alginate impression material without affecting its performance. Green synthesis of metal nanoparticles using Boswellia sacra extract could be a very safe, efficient, and nontoxic way with the additional advantage of a synergistic action between metal ions and the phytotherapeutic agents of the plant extract.
Clin Oral Investig. 2023 Nov;27(11):6677-6688.
PMID: 37775587 [PubMed - indexed for MEDLINE]
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| 9. |
Development, Analytical Characterization, and Bioactivity Evaluation of Extract-Layered Double Hydroxide Hybrid Composites.
Cometa S, Busto F, Castellaneta A, Cochis A, Najmi Z, Rizzi R, Losito I, De Giglio E
extract (BSE), rich in boswellic acids, is well known as a potent anti-inflammatory natural drug. However, due to its limited aqueous solubility, BSE inclusion into an appropriate carrier, capable of improving its release in the biological target, would be highly desirable. Starting with this requirement, new hybrid composites based on the inclusion of BSE in a lamellar solid layered double hydroxide (LDH), i.e., magnesium aluminum carbonate, were developed and characterized in the present work. The adopted LDH exhibited a layered crystal structure, comprising positively charged hydroxide layers and interlayers composed of carbonate anions and water molecules; thus, it was expected to embed negatively charged boswellic acids. In the present case, a calcination process was also adopted on the LDH to increase organic acid loading, based on the replacement of the original inorganic anions. An accurate investigation was carried out by TGA, PXRD, FT-IR/ATR, XPS, SEM, and LC-MS to ascertain the nature, interaction, and quantification of the active molecules of the vegetal extract loaded in the developed hybrid materials. As a result, the significant disruption of the original layered structure was observed in the LDH subjected to calcination (LDHc), and this material was able to include a higher amount of organic acids when its composite with BSE was prepared. However, in vitro tests on the composites' bioactivity, expressed in terms of antimicrobial and anti-inflammatory activity, evidenced LDH-BSE as a better material compared to BSE and to LDHc-BSE, thus suggesting that, although the embedded organic acid amount was lower, they could be more available since they were not firmly bound to the clay. The composite was able to significantly decrease the number of viable pathogens such as and as well as the internalization of toxic active species into human cells imposing oxidative stress, in comparison to the BSE.
Molecules. 2023 Sep;28(18):.
PMID: 37764225 [PubMed - as supplied by publisher]
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| 10. |
The performance of hypochlorous acid modified Ag nanoparticle-based assay in the determination of total antioxidant capacity of Boswellia Serrata and Aronia.
Eryaman Z, Hizal J, Yılmazoğlu M, Daban U, Mert H, Kanmaz N
In this study, the SNPAC method was developed by using hypochlorous (ClO) at pH 9.3. Polyvinylpyrrolidone (PVP) was used as a stabilizer. The existence of HOCl enables to formation stronger and more stable yellow emission which gives sensitivity. As a result, lower LOD and LOQ values were achieved by the AgNP-HOCl method. The obtaining lower values was attributed to the reoxidation of silver atoms with ClO ions in the presence of PVP. The newly modified method was applied to the total antioxidant capacity (TAC) measurement of Boswellia Serrata, Aronia Melanocarpa tea, and juice. The results were compared with the results obtained by application of CUPRAC (Cupric ion Reducing Antioxidant Capacity) and FRAP (Ferric Reducing Antioxidant Power) assays. The TAC values of Boswellia Serrata, Aronia Melanocarpa tea, and juice were found as 6.18, 137.98, and 12.08 mmol TEAC/kg, respectively.
Talanta. 2024 Jan;267():125218.
PMID: 37734289 [PubMed - indexed for MEDLINE]
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| 11. |
Investigation of VEGF (rs 699947) polymorphism in the progression of Rheumatoid Arthritis (RA) and in-silico nanoparticle drug delivery of potential phytochemicals to cure RA.
Hussain N, Mumtaz M, Adil M, Ali Nadeem A, Sarwar A, Aziz T, Alharbi M, Alshammari A, Alasmari AF, Alharbi ME
Mutation in the VEGF gene disturbs the production of chondrocytes and angiogenesis which are essential for cartilage health. Cytokines and chemokines produced by auto-activation of B-cells degrade cartilage. Bruton's Tyrosine Kinase (BTK) plays a crucial role in the activation of these B-cells. VEGF has a central part in angiogenesis, in the recruitment of endothelial cells, and is involved in mechanisms that result in tumour formation. The objective of this research is to investigate the potential role of VEGF polymorphism in the development of Rheumatoid Arthritis (RA) and the screening of potential natural, synthetic BTK inhibitor compounds as possible in-silico chemotherapeutic agents to control auto-activation of B-cells and cartilage degrading cytokines. In this study, it had been shown that allele A frequency was significantly higher than that of allele C in RA-positive patients as compared to controls. Hence it depicts that allele A of VEGF (rs699947) can increase the risk of RA while allele C has a protective role. The phytochemicals which showed maximum binding affinity at the inhibitory site of BTK include beta boswellic acid, tanshinone, and baicalin. These phytochemicals as BTK inhibitor give insights to use them as anti-arthritic compounds by nanoparticle drug delivery mechanism.
Acta Biochim Pol. 2023 Sep;70(3):591-598.
PMID: 37669474 [PubMed - indexed for MEDLINE]
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| 12. |
Anti-cancer properties of boswellic acids: mechanism of action as anti-cancerous agent.
Trivedi VL, Soni R, Dhyani P, Sati P, Tejada S, Sureda A, Setzer WN, Faizal Abdull Razis A, Modu B, Butnariu M, Sharifi-Rad J
With the advent of highly effective plant-based medications with few or no side effects, the use of phytomedicines against complex diseases such as cancer is becoming more widespread. The broadly recognized pentacyclic triterpenes known as boswellic acids (BAs) are derived from the oleogum resin, or frankincense, extracted from the plant species of the genus . The frankincense mixture contains various BA types, each having a different potential and helping treat certain cancers. This review focuses on details regarding the traits of the BAs, their roles as anti-cancer agents, the mechanism underlying their activities, and the function of their semi-synthetic derivatives in managing and treating certain cancers. The review also explores the biological sources of BAs, how they are conserved, and how biotechnology might help preserve and improve BA production. The review concludes that the BAs and their semi-synthetic derivatives are effective against a broad spectrum of cancer cell lines. The detailed information in the review can be helpful for researchers to gain more information about BAs and BA-based medications for efficient and cost-effective cancer treatments.
Front Pharmacol. 2023;14():1187181.
PMID: 37601048 [PubMed - as supplied by publisher]
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| 13. |
Effect of Turmeric-Boswellia-Sesame Formulation in Menstrual Cramp Pain Associated with Primary Dysmenorrhea-A Double-Blind, Randomized, Placebo-Controlled Study.
Agarwal D, Chaudhary P
Primary dysmenorrhea is a common menstrual disorder that significantly impacts women's quality of life, productivity, and healthcare utilization. In this randomized, double-blinded, placebo-controlled trial, sixty women with primary dysmenorrhea were randomly divided into two groups with thirty participants each, and were allocated either turmeric-boswellia-sesame formulation (treatment) or placebo. The participants were advised to take two softgels of 500 mg as a single dose of allocated study intervention (total dose 1000 mg) when their menstrual pain reached 5 or more on a numerical rating scale (NRS). Menstrual cramp pain intensity and relief were evaluated every 30 min post-dose until 6 h. Results indicated a promising role of turmeric-boswellia-sesame formulation for menstrual pain relief compared to the placebo. The mean total pain relief (TOTPAR) of the treatment group (18.9 ± 0.56) was found to be 12.6 times better than the placebo group (1.5 ± 0.39). The NRS analysis showed that there was a statistically significant difference in pain intensity between the treatment and placebo groups ( < 0.001) at every timepoint. Additionally, the sum of pain intensity difference at 6 h (SPID6) of the treatment group (34.32 ± 1.41) showed a significant difference ( < 0.0001) and was 20.19 times better when compared to placebo (1.7 ± 0.56). Based on the study results, the turmeric-boswellia-sesame formulation exhibited remarkable menstrual pain relief as compared to the placebo.
J Clin Med. 2023 Jun;12(12):.
PMID: 37373663 [PubMed - as supplied by publisher]
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| 14. |
Mechanical and Physical Properties of an Experimental Chemically and Green-Nano Improved Dental Alginate after Proven Antimicrobial Potentials.
Singer L, Bourauel C
OBJECTIVES: Impression materials could be a source of cross-contamination due to the presence of microorganisms from blood and saliva inside the oral cavity. Nevertheless, routinely performed post-setting disinfection could compromise the dimensional accuracy and other mechanical properties of alginates. Thus, this study aimed to evaluate detail reproduction, dimensional accuracy, tear strength, and elastic recovery of new experimentally prepared self-disinfecting dental alginates.
METHODS: Two antimicrobial-modified dental alginate groups were prepared by mixing alginate powder with 0.2% silver nitrate (AgNO group) and a 0.2% chlorohexidine solution (CHX group) instead of pure water. Moreover, a third modified group was examined by the extraction of () oleoresin using water. The extract was used to reduce silver nitrate to form silver nanoparticles (AgNPs), and the mixture was used as well in dental alginate preparation ( + AgNP group). Dimensional accuracy and detail reproduction were examined as per the ISO 1563 standard guidelines. Specimens were prepared using a metallic mold engraved with three parallel vertical lines 20, 50, and 75 µm wide. Detail reproduction was evaluated by checking the reproducibility of the 50 µm line using a light microscope. Dimensional accuracy was assessed by measuring the change in length between defined reference points. Elastic recovery was measured according to ISO 1563:1990, in which specimens were gradually loaded and then the load was released to allow for recovery from the deformation. Tear strength was evaluated using a material testing machine until failure at a crosshead speed of 500 mm/min.
RESULTS: The recorded dimensional changes between all tested groups were insignificantly different and within the reported acceptable values (between 0.037-0.067 mm). For tear strength, there were statistically significant differences between all tested groups. Groups modified with CHX (1.17 ± 0.26 N/mm) and + AgNPs (1.11 ± 0.24 N/mm) showed higher tear strength values compared to the control (0.86 ± 0.23 N/mm) but were insignificant from AgNO (0.94 ± 0.17 N/mm). All tested groups showed elastic recovery values that met both the ISO standard and ADA specifications for elastic impression materials and tear strength values within the acceptable documented ranges.
DISCUSSION: The CHX, silver nitrate, and green-synthesized silver nanoparticles could be promising, inexpensive alternatives for the preparation of a self-disinfecting alginate impression material without affecting its performance. Green synthesis of metal nanoparticles could be a very safe, efficient, and nontoxic method, with the advantage of having a synergistic effect between metal ions and active chemical constituents of plant extracts.
Gels. 2023 May;9(5):.
PMID: 37233020 [PubMed - as supplied by publisher]
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| 15. |
[Preparation of Huoluo Xiaoling gel plaster and its transdermal penetration in vitro].
Zhao LH, Zhang W, Fan RY, Su SL, Shang EX, Qian DW, Duan JA
Huoluo Xiaoling Dan is a classical prescription commonly used for blood circulation and pain relief in clinic with obvious effects. To make it directly treat lesion and improve the effect, this research optimized the preparation process of Huoluo Xiaoling gel paste and further evaluated its in vitro transdermal absorption performance, so as to provide a scientific basis for its development and utilization. Using primary viscosity, holding viscosity, and sensory score as evaluation indexes, the matrix amount of gel paste was determined by the single factor test and Box-Behnken response surface method. The ultra-performance liquid chromatography(UPLC) method was established to determine the content of eight active ingredients, including Danshensu, ferulic acid, salvianolic acid B, salvianolic acid A, ligustilide, tanshinone Ⅱ_A, 11-keto-β-boswellic(KBA), and 3-acetyl-11-keto-β-boswellic acid(AKBA). A mo-dified Franz diffusion cell method was used to evaluate and compare the absorption properties of the gel paste without volatile oil and with volatile oil microemulsion. The results showed that the optimal prescription for Huoluo Xiaoling gel paste matrix was NP700(1.35 g), glycerol(7.00 g), micropowder silica gel(1.25 g), sodium carboxymethyl cellulose(0.20 g), tartaric acid(0.06 g), and glyceryl aluminum(0.04 g). The mass fractions of eight active ingredients in the paste were successively 0.48, 0.014, 0.95, 0.39, 0.57, 0.055, 0.35, and 0.97 mg·g~(-1). The results of the in vitro transdermal absorption test showed that the addition of the volatile oil or the volatile oil microemulsion promoted the transdermal absorption of the active ingredients, and the law of drug penetration conformed to the zero equation or the Higuchi equation. The gel paste prepared by the optimal prescription has good appearance and adhesion, with no residue, and has the characteristics of skeletal slow-release preparation, which is easy to reduce the number of administration, la-ying a foundation for the development of new external dosage forms of Huoluo Xiaoling Dan.
Zhongguo Zhong Yao Za Zhi. 2023 Mar;48(5):1238-1248.
PMID: 37005808 [PubMed - indexed for MEDLINE]
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| 16. |
In situ Formation of Polymer Microparticles in Bacterial Nanocellulose Using Alternative and Sustainable Solvents to Incorporate Lipophilic Drugs.
Bellmann T, Thamm J, Beekmann U, Kralisch D, Fischer D
Bacterial nanocellulose has been widely investigated in drug delivery, but the incorporation of lipophilic drugs and controlling release kinetics still remain a challenge. The inclusion of polymer particles to encapsulate drugs could address both problems but is reported sparely. In the present study, a formulation approach based on in situ precipitation of poly(lactic-co-glycolic acid) within bacterial nanocellulose was developed using and comparing the conventional solvent -methyl-2-pyrrolidone and the alternative solvents poly(ethylene glycol), Cyrene and ethyl lactate. Using the best-performing solvents -methyl-2-pyrrolidone and ethyl lactate, their fast diffusion during phase inversion led to the formation of homogenously distributed polymer microparticles with average diameters between 2.0 and 6.6 µm within the cellulose matrix. Despite polymer inclusion, the water absorption value of the material still remained at ~50% of the original value and the material was able to release 32 g/100 cm of the bound water. Mechanical characteristics were not impaired compared to the native material. The process was suitable for encapsulating the highly lipophilic drugs cannabidiol and 3-O-acetyl-11-keto-β-boswellic acid and enabled their sustained release with zero order kinetics over up to 10 days. Conclusively, controlled drug release for highly lipophilic compounds within bacterial nanocellulose could be achieved using sustainable solvents for preparation.
Pharmaceutics. 2023 Feb;15(2):.
PMID: 36839881 [PubMed - as supplied by publisher]
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| 17. |
Boswellic acid coated zinc nanoparticles attenuate NF-κB-mediated inflammation in DSS-induced ulcerative colitis in rats.
Abou Zaid ES, Mansour SZ, El-Sonbaty SM, Moawed FS, Kandil EI, Haroun RA
INTRODUCTION: Ulcerative colitis (UC) is a chronic non-specific inflammatory bowel disease, and until now therapeutic agents for UC still cannot exert satisfied effects. Therefore, this study aimed to investigate the ameliorative effect of boswellic acid coated zinc nanoparticles (BAs-ZnNPs) on dextran sodium sulphate (DSS) induced-UC in rats.
METHODS: Rats were divided into five groups; control, BAs-ZnNPs, DSS, DSS+BAs, and DSS + BAs-ZnNPs. The activity of alkaline phosphatase (ALP) was determined colorimetrically, while the concentration of IgM, IgG, TNF-α, IL-1β, and IL-8 were measured by ELISA. Levels of gene expression of NF-κB and COX-2 genes were evaluated by RT-qPCR, while the expression of protein levels of PI3K and STAT-3 were done by western blotting. Finally, histopathological examination of colon tissues of different groups of rats was done.
RESULTS: The depicted ball-like structure of the BAs-ZnNPs in the TEM images ranging in size from 50 to 100 nm in diameter while their formation was confirmed by UV-visible spectroscopy with a sharp peak of maximum absorbance at 266 nm. Our results revealed that BAs-ZnNPs exerted an anti-inflammatory effect in the experimental model of colitis, demonstrated histologically and biochemically as shown by the improvement of ALP, IgM, IgG, and the gene expression levels of NF-κB and COX-2. Also, this beneficial effect was associated with the reduction in the expression of TNF-α, IL-1β, IL-8, PI3K, and STAT-3. Thus, this effect improves the altered immune response associated with the colonic inflammation.
CONCLUSION: BAs-ZnNPs can be proposed as a therapeutic candidate to attenuate UC. The potential underlying mechanism includes suppression of ALP, IgM, IgG, IL-1β, and IL-8 levels via regulation of NF-κB and COX-2 gene expression and STAT-3 and PI3K protein expression in a UC rat model.
Int J Immunopathol Pharmacol. 2023;37():3946320221150720.
PMID: 36600460 [PubMed - indexed for MEDLINE]
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| 18. |
Omani Frankincense nanoemulsion formulation efficacy and its latent effects on biological aspects of the spiny bollworm (Boisd.).
Metayi MH, Abd El-Naby SS, El-Habal NA, Fahmy HH, Abdou MS, Ali B, Abdel-Rheim KH, Abdel-Megeed A
Our research shed light on the perspective of formulation technology regarding its responsibility to provide phyto-insecticides that are worthy of research into potential novel applications. There has been an increase in interest in using nanoemulsion as a new formulation in a variety of sectors during the last several decades. essential oil (Fam: Burseraceae) from the resin of frankincense trees has been recently proposed as a promising ingredient in a new generation of botanical insecticides. Frankincense nanoemulsion was formulated in 5% ratios comprising frankincense oil, surfactants, and water. A frankincense nanoemulsion was prepared using a high-energy ultra-sonication process and characterized by dynamic light scattering transmission electron microscopy surface tension, viscosity, and zeta potential value. Gas chromatography/mass spectrometry (GC/MS) was used to identify the chemical profiles of frankincense essential oil. Furthermore, insecticidal effects against second instar larvae of the spiny bollworm, , as well as their latent effects on the larvae were studied. In the present study, the formulation was a good nanoemulsion. The surface tension was 53.69, the viscosity was 4.76 cPs, the zeta potential was-10 mV, and the size distribution was 41.30 nm. The polydispersity index (PDI) of the nanoemulsion was found to be 0.26, and the morphology of the frankincense nanoemulsion was visualized in a spherical shape. The main constituents identified in frankincense oil were α-pinene (15.52%); monolinolenin (12.92%); and geranylgeranyl acetate (9.99%). The results showed significant insecticidal activity against the larval stage and considerably decreased the pupation percentage with increasing the volume of the frankincense nanoemulsion. On the other hand, the latent effects of the frankincense nanoemulsion on resulted in a higher prolongation of larval and pupal durations as well as a significant reduction in the weight of larvae and pupae of Additionally, frankincense nanoemulsion dramatically influenced the adult emergence percentage. It also caused a significantly lower hatchability percentage compared to the untreated control. The concentrations used and the types of mating combination have a significant effect on the fecundity of . This novel frankincense nanoemulsion formulation could be used in strategies to control the spiny bollworm on cotton plants.
Front Physiol. 2022;13():1001136.
PMID: 36277209 [PubMed - as supplied by publisher]
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| 19. |
Bacterial nanocellulose patches as a carrier for hydrating formulations to improve the topical treatment of nail diseases.
Bellmann T, Luber R, Kischio L, Karl B, Pötzinger Y, Beekmann U, Kralisch D, Wiegand C, Fischer D
Bacterial nanocellulose has been widely investigated for wound healing applications, mainly due to its moisturizing capabilities and biocompatibility. Even though the topical therapy of nail diseases could benefit from these properties, this application has not yet been investigated. Therefore, actively hydrating nail patches based on bacterial nanocellulose were developed to improve the delivery of ciclopirox olamine and Boswellia serrata extract through the nail plate. The nanocellulose matrix was used to enable the application of hydration enhancing solutions based on glycerol and urea as a mechanically stable patch. While the favorable mechanical characteristics of the material remained unchanged, an increase of the incorporated glycerol concentration enhanced the transparency and wetting capacity of the patches. A biphasic drug release from the patches could be observed for drug and extract with a faster release for the hydrophilic ciclopirox olamine. High glycerol concentrations correlated with increased cumulative release and permeation through keratin films for drug and extract, demonstrating the hydration driven permeation enhancement. Patches containing ciclopirox olamine showed strong antimycotic effects against relevant pathogens for onychomycosis. The present finding proposed the combination of bacterial nanocellulose with glycerol, urea and different drug as a promising platform for the local treatment of nail diseases.
Int J Pharm. 2022 Nov;628():122267.
PMID: 36209980 [PubMed - indexed for MEDLINE]
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| 20. |
Characterization of Engl Resin as a Potential Use for Pharmaceutical Excipient.
Gashe F, Assefa D, Tesema S, Zeleke G, Tatiparthi R, Kebebe D, Suleman S
Pharmaceutical excipients derived from natural sources like resins are nowadays meritoriously used in the formulation of drugs. Resins of natural origin have many advantages over chemically synthesized substances; they are safer, nontoxic, less expensive, biodegradable, and widely available. To our knowledge, resins from plants have been not sufficiently explored for application in pharmaceutical formulations. Thus, in the present study, a resin isolated from Engl was characterized for its potential use as a pharmaceutical excipient. . The resin was extracted from the oleo gum resin of Engl, which involved the removal of volatile oils, gum, and Boswellic acid contents. The dried resin powder was then characterized for its micromeritic properties, heavy metal contents, moisture content, moisture absorption power, pH, solubility, swelling property, and acute toxicity profile. Moreover, the crystal nature and the chemical functionality of the resin were evaluated by using X-ray diffraction and Fourier transform infrared spectrometry, respectively. . The yield of the neutral resin was 13.17%, and the powder was pale yellow and had irregular surfaces. The resin was freely soluble in organic solvents but almost insoluble in water. The moisture content of the dried extract was 2.5% while its moisture absorption capacity was 2.5%, 4%, and 5.47% at 40%, 60%, and 75% RH, respectively. Besides, the maximum swelling capacities of the resin observed were 40%, 37%, and 30% at 350C, 300C, and 250C, respectively. The bulk powder exhibited a 1.21 Hausner ratio, 36.497 angles of repose, and 17.03% Carr's index, indicating the fair flowability of the powder. Heavy metals such as zinc, chromium, and cobalt were detected at a low level while elements like copper, manganese, lead, and cadmium were absent. The X-ray diffraction study revealed that the crystallinity index of the powder was 42.7% with a crystal size of 994.5A. The resin could be safe in mice up to 3 g/kg of their body weight. In conclusion, the physicochemical properties of the resin powder investigated reveal its potential application as pharmaceutical additives in the formulation of modified release solid dosages forms like tablets and microcapsules.
Biomed Res Int. 2022;2022():5791308.
PMID: 35978631 [PubMed - indexed for MEDLINE]
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| 21. |
Influence of Technological Factors on the Quality of Chitosan Microcapsules with L. Essential Oil.
Pudziuvelyte L, Siauruseviciute A, Morkuniene R, Lazauskas R, Bernatoniene J
Essential oils contain many volatile compounds that are not stable and lose their pharmacological effect when exposed to the environment. The aim of this study is to protect L. essential oil from environmental factors by encapsulation and determine the influence of chitosan concentration and types (2%, 4%; medium and high molecular weights), essential oil concentration, different emulsifiers (Tween and Span), and technological factors (stirring time, launch height, drip rate) on the physical parameters, morphology, texture, and other parameters of the generated gels, emulsions, and microcapsules. For the first time, L. essential oil microcapsules with chitosan were prepared by coacervation. Hardness, consistency, stickiness, viscosity, and pH of chitosan gels were tested. Freshly obtained microcapsules were examined for moisture, hardness, resistance to compression, size, and morphology. Results show that different molecular weights and concentrations of chitosan affected gel hardness, consistency, stickiness, viscosity, mobility, and adhesion. An increase in chitosan concentration from 2% to 4% significantly changed the appearance of the microcapsules. It was found that spherical microcapsules were formed when using MMW and HMW 80/1000 chitosan. Chitosan molecular weight, concentration, essential oil concentration, and stirring time all had an impact on the hardness of the microcapsules and their resistance to compression.
Pharmaceutics. 2022 Jun;14(6):.
PMID: 35745831 [PubMed - as supplied by publisher]
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| 22. |
Influence of Dietary Supplementation with and on Performance and Blood Biochemistry in Free-Range Leghorn Laying Hens.
Guerrini A, Dalmonte T, Lupini C, Andreani G, Salaroli R, Quaglia G, Zannoni A, Scozzoli M, Forni M, Isani G
This study was conducted to evaluate the safety and the beneficial effects of dietary supplementation with Boswellia serrata (Bs) and Salix alba (Sa) in Leghorn hens during the critical pre-laying and laying phases. A total of 120 pullets, 17 weeks of age, were assigned to two groups (Control—C; Treated—T, n = 60 each). For 12 weeks, the T group received a diet supplemented with 0.3% of dry extracts of Bs (5%) and Sa (5%). The study lasted 19 weeks. Productive performance, serum analytes, H/L ratio, IgA and anti-IBV antibodies were investigated. Water intake was significantly higher, while body and egg weight was significantly lower for the T group (p < 0.05). No other differences were detected in performance parameters, serum analytes, IgA and H/L ratio excluding t0, with a significantly (p < 0.05) higher H/R ratio and higher titers of anti-IBV antibody for the T group. Overall, the data obtained in this study show that the supplementation with Bs and Sa was safe and resulted in an increase in water consumption, a decrease in egg weight, and a sedative effect in the hens. In the future, it would be interesting to test this supplement in hens reared on intensive farms.
Vet Sci. 2022 Apr;9(4):.
PMID: 35448679 [PubMed - as supplied by publisher]
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| 23. |
Co-encapsulation of curcumin and boswellic acids in chitosan-coated niosome: an digestion study.
Salehi S, Nourbakhsh MS, Yousefpour M, Rajabzadeh G, Sahab-Negah S
In this study, chitosan-coated niosome (ChN) was utilised for bioavailability enhancement of curcumin (Cn) and boswellic acids (BAs). The bare niosome (BN) was prepared by the heating method and optimised by using the mixture design procedure. Physicochemical stability, as well as the in vitro release, and bioavailability of Cn and BAs in BN and ChN were studied. The optimised BN had a mean diameter of 70.00 ± 0.21 nm and surface charge of -31.00 ± 0.25 mv, which changed to 60.01 ± 0.20 nm and +40.00 ± 0, respectively, in ChN. digestion study revealed chitosan layer augmented the bioavailability of Cn and BAs to 79.02 ± 0.13 and 81 ± 0.10, respectively. The chitosan layer obviously improved the physical stability of Cn and BA in the niosome vehicle, by means of vesicle size, zeta potential, and encapsulation efficiency. The ChN was considered to be promising delivery system for increasing the bioavailability of Cn and BAs.
J Microencapsul. 2022 May;39(3):226-238.
PMID: 35384786 [PubMed - indexed for MEDLINE]
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| 24. |
Ingredients of a Natural Oral Nutritional Supplement and Their Role in the Treatment of Osteoarthritis.
Bharat KT, Manhas NS, Gutcho J, Lin J, Bhattacharyya S, Kounang R
Osteoarthritis is a prevalent degenerative disease affecting a large portion of the world's aging population. Currently, nonsteroidal anti-inflammatory drugs and acetaminophen are first-line medications for treating osteoarthritis patients' pain. However, several studies have noted that while these medications control pain they do not halt progressive degeneration and tend to have an unfavorable side-effect profile with prolonged use. Recently, due to their more favorable side-effect profiles, herbal alternatives for controlling osteoarthritis symptoms and for alleviating the progression of the disease are being increasingly studied. Synogesic is a newly developed herbal supplement blend by renowned orthopedic surgeons and physiatrists consisting of turmeric, rutin, ginger root, vitamin C, vitamin D, and boswellia extracts. A study by Sharkey et al. has commented on the efficacy of the blend on the patients with knee osteoarthritis. So far, a review on the ingredients of the blend has not yet carried outbeen. By exploring prominent literature databases including PubMed and ScienceDirect, our aim is to write a narrative review to explore the individual ingredients of this blend and delve into their characteristics, as well as the most recent literature on their mechanism and efficacy in patients with osteoarthritis. Through this, we hope to inform clinicians and patients alike on relevant up-to-date research on the supplement and provide insight on the potential for this supplement for alleviating the disease course of patients with osteoarthritis.
Clin Med Insights Arthritis Musculoskelet Disord. 2022;15():11795441211063365.
PMID: 35360183 [PubMed - as supplied by publisher]
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| 25. |
Synthesis of 3--Acetyl-11-keto-β-boswellic Acid (AKBA)-Derived Amides and Their Mitochondria-Targeted Antitumor Activities.
Li C, He Q, Xu Y, Lou H, Fan P
In this study, we synthesized a series of amide and mitochondria-targeted derivatives with 3--acetyl-11-keto-β-boswellic acid (AKBA) as the parent structure and an ethylenediamine moiety as the link chain. Compound , a mitochondrial-targeting potential derivative, showed significantly stronger antitumor activity than that of AKBA, and it could induce vacuolization of A549 cells and stimulate the production of reactive oxygen species (ROS) in a time- and concentration-dependent manner. The antioxidant -acetylcysteine (NAC) could inhibit the ROS level but could not suppress vacuolization and cell death induced by . Further studies demonstrated that caused abnormal opening of mitochondrial permeability transition pore (MPTP) and a decrease of mitochondrial membrane potential; additionally, it caused cell cycle arrest in G/G but did not induce apoptosis. represented a compound with improved antiproliferative effects for cancer therapy working through new mechanisms.
ACS Omega. 2022 Mar;7(11):9853-9866.
PMID: 35350335 [PubMed - as supplied by publisher]
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| 26. |
Safety and efficacy of a feed additive consisting of an extract of olibanum from Roxb. ex Colebr. for use in dogs and horses (FEFANA asbl).
, Bampidis V, Azimonti G, Bastos ML, Christensen H, Fašmon Durjava M, Kouba M, López-Alonso M, López Puente S, Marcon F, Mayo B, Pechová A, Petkova M, Ramos F, Sanz Y, Edoardo Villa R, Woutersen R, Brantom P, Chesson A, Westendorf J, Manini P, Pizzo F, Dusemund B
Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of olibanum extract from Roxb. ex Colebr., when used as a sensory additive (flavouring) in feed for all dogs and horses. The FEEDAP Panel concluded that the additive under assessment is safe for horses at the maximum proposed use level of 100 mg/kg in complete feed. For dogs, the calculated safe concentration in feed is 330 mg/kg complete feed. The additive is considered safe for consumers when used at the proposed conditions of use in horses. The additive under assessment should be considered as non-irritant to skin and eyes, but in the absence of data, no conclusion can be drawn on its potential to be a dermal and respiratory sensitiser. The use of the additive under the proposed conditions of use in feed for horses was not expected to pose a risk for the environment. species and their preparations were recognised to flavour food. Since their function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.
EFSA J. 2022 Mar;20(3):e07158.
PMID: 35281639 [PubMed - as supplied by publisher]
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| 27. |
Dietary Acid Alters the Gut Microbiome and Blood Metabolites in Experimental Models.
Suther C, Daddi L, Bokoliya S, Panier H, Liu Z, Lin Q, Han Y, Chen K, Moore MD, Zhou Y
, commonly known as frankincense, has been used for centuries as a natural anti-inflammatory and anti-microbial remedy for many illnesses. However, the effect of the bioactive ingredient of it, 3-O-acetyl-11-keto-b-boswellic acid (AKBA), on both the gut microbiome and blood metabolites, is not known. In this study, we observe the effect of this isolated active ingredient orally on both male and female mice. Gut microbiota and blood metabolites were determined at the beginning and end of a 14-day consumption period. AKBA significantly decreased gut bacterial richness in male mice, and had no effect on female mice. , associated with weight loss and anti-inflammation, was found to be significantly increased in both male and female mice, along with an increase in in female mice. and were plated on media containing varying levels of AKBA (0%, 0.001%, 0.01%, and 0.1%). All concentrations of AKBA completely inhibited growth of but had no effect on . Several blood metabolites differed with AKBA between both males and females. These results show the potential benefits of dietary on the modulation of gut microbiome composition, along with differences between sexes.
Nutrients. 2022 Feb;14(4):.
PMID: 35215464 [PubMed - indexed for MEDLINE]
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| 28. |
Chemical composition and antimicrobial activity of oleo-gum-resin essential oil extracted by superheated steam.
Ayub MA, Hanif MA, Blanchfield J, Zubair M, Abid MA, Saleh MT
Oleo-gum-resin is a complex mixture of essential oils, polysaccharides, and resin acids. The objectives of the present study were to evaluate the variation in chemical components and antimicrobial activity of essential oils extracted by superheated steam at various temperatures. The optimum essential oil yield was obtained at the highest superheated steam temperature (210 °C). In total, twenty-one compounds were quantified by GC-MS with α-pinene as the major compound, followed by α-thujene, -verbenol, β-thujone, -cymene, -cymene, and sabinene. Antimicrobial activity was performed by disc diffusion, resazurin microtitre-plate and micro-dilution broth susceptibility assays in which essential oil extracted at 150 °C and 180 °C revealed the highest antibacterial and antifungal activity, respectively. It is concluded that superheated steam is an effective method for the isolation of essential oil from oleo-gum-resin that improves the recovery of essential oil as well as antimicrobial activity.
Nat Prod Res. 2023 Jul;37(14):2451-2456.
PMID: 35200079 [PubMed - indexed for MEDLINE]
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| 29. |
Efficacy of a dietary supplement in dogs with osteoarthritis: A randomized placebo-controlled, double-blind clinical trial.
Martello E, Bigliati M, Adami R, Biasibetti E, Bisanzio D, Meineri G, Bruni N
This study is a randomized, placebo-controlled, double-blinded trial performed to investigate the effects of a dietary supplement containing a mixture of Boswellia serrata Roxb., chlorophyll, green tea extract, glucosamine, chondroitin sulfate, hyaluronic acid, and further in the manuscript: non-hydrolised type II collagen in dogs with osteoarthritis (OA). A total of 40 dogs were enrolled in the study, they were randomly divided in control (CTR) and treatment (TRT) groups. The TRT group received the dietary supplement for 60 days. The CTR group received a placebo for the same number of days. All the subjects had veterinary evaluations during the trial and owners were requested to fill in questionnaires on chronic pain using the Helsinki Chronic Pain Index. The product was easy to administer and no side effects were reported. Combining results from veterinarian and owner evaluations, the tested product proved to be significantly beneficial in alleviating pain and in reducing the clinical signs in dogs with OA.
PLoS One. 2022;17(2):e0263971.
PMID: 35171954 [PubMed - indexed for MEDLINE]
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| 30. |
Extract-Loaded Mesoporous Bioactive Glass Nano Particles: Synthesis and Biological Effects.
Ilyas K, Singer L, Akhtar MA, Bourauel CP, Boccaccini AR
Bioactive glasses (BGs) are being increasingly considered for numerous biomedical applications. The loading of natural compounds onto BGs to increase the BG biological activity is receiving increasing attention. However, achieving efficient loading of phytotherapeutic compounds onto the surface of bioactive glass is challenging. The present work aimed to prepare novel amino-functionalized mesoporous bioactive glass nanoparticles (MBGNs) loaded with the phytotherapeutic agent extract. The prepared amino-functionalized MBGNs showed suitable loading capacity and releasing time. MBGNs (nominal composition: 58 wt% SiO, 37 wt% CaO, 5 wt% PO) were prepared by sol-gel-modified co-precipitation method and were successfully surface-modified by using 3-aminopropyltriethoxysilane (APTES). In order to evaluate MBGNs loaded with , morphological analysis, biological studies, physico-chemical and release studies were performed. The successful functionalization and loading of the natural compound were confirmed with FTIR, zeta-potential measurements and UV-Vis spectroscopy, respectively. Structural and morphological evaluation of MBGNs was done by XRD, SEM and BET analyses, whereas the chemical analysis of the plant extract was done using GC/MS technique. The functionalized MBGNs showed high loading capacity as compared to non-functionalized MBGNs. The release studies revealed that molecules were released via controlled diffusion and led to antibacterial effects against (Gram-positive) bacteria. Results of cell culture studies using human osteoblastic-like cells (MG-63) indicated better cell viability of the -loaded MBGNs as compared to the unloaded MBGNs. Therefore, the strategy of combining the properties of MBGNs with the therapeutic effects of represents a novel, convenient step towards the development of phytotherapeutic-loaded antibacterial, inorganic materials to improve tissue healing and regeneration.
Pharmaceutics. 2022 Jan;14(1):.
PMID: 35057022 [PubMed - as supplied by publisher]
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| 31. |
Extract as an Antibiofilm Agent against spp.
Jaroš P, Vrublevskaya M, Lokočová K, Michailidu J, Kolouchová I, Demnerová K
The use of antibiotics or antifungals to control infections caused by pathogenic microorganisms is currently insufficiently effective because of their emerging resistance. Thanks to the ability of microorganisms to form a biofilm and thus increase their resistance to administered drugs even more, modern medicine faces the task of finding novel substances to combat infections caused by them. In this regard, the effects of essential oils or plant extracts are often studied. Among the relatively neglected plants is , which has a high content of biologically active boswellic acids. In this study, we focused on one of the most common nosocomial infections, which are caused by species. The most common representative is , although the number of infections caused by non-albicans species has recently been increasing. We focused on the antifungal activity of extract Bioswellix against planktonic and adhering cells of , and The antifungal activity against adhering cells was further explored by determining the metabolic activity of cells (MTT) and determining the total amount of biofilm using crystal violet. Boswellic acid-containing plant extract was shown to suppress the growth of a suspension population of all tested species. extract Bioswellix was most effective in inhibiting biofilm formation.
Microorganisms. 2022 Jan;10(1):.
PMID: 35056620 [PubMed - as supplied by publisher]
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| 32. |
Reducing Biofilm Infections in Burn Patients' Wounds and Biofilms on Surfaces in Hospitals, Medical Facilities and Medical Equipment to Improve Burn Care: A Systematic Review.
Thomas RE, Thomas BC
Biofilms in burns are major problems: bacterial communities rapidly develop antibiotic resistance, and 60% of burn mortality is attributed to biofilms. Key pathogens are , methicillin-resistant , and multidrug-resistant Purpose: identify current and novel interventions to reduce biofilms on patients' burns and hospital surfaces and equipment. Medline and Embase were searched without date or language limits, and 31 possible interventions were prioritised: phages, nano-silver, AgSD-NLs@Cur, Acticoat and Mepilex silver, acetic acid, graphene-metal combinations, CuCoSO nanoparticles, Chlorhexidene acetate nanoemulsion, a hydrogel with moxifloxacin, carbomer, Chitosan and Boswellia, LED light therapy with nano-emodin or antimicrobial blue light + Carvacrol to release reactive oxygen species, mannosidase + trypsin, NCK-10 (a napthalene compound with a decyl chain), antimicrobial peptide PV3 (includes two snake venoms), and polypeptides P03 and PL2. Most interventions aimed to penetrate cell membranes and reported significant reductions in biofilms in cfu/mL or biofilm mass or antibiotic minimal inhibitory concentrations or bacterial expression of virulence or quorum sensing genes. Scanning electron microscopy identified important changes in bacterial surfaces. Patients with biofilms need isolating and treating before full admission to hospital. Cleaning and disinfecting needs to include identifying biofilms on keyboards, tablets, cell phones, medical equipment (especially endoscopes), sinks, drains, and kitchens.
Int J Environ Res Public Health. 2021 Dec;18(24):.
PMID: 34948803 [PubMed - indexed for MEDLINE]
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| 33. |
Effect of a Selection of Skin Penetration Enhancers on Topical Anti-Inflammatory Effect of Boswellic Acids in Carrageenan-Induced Paw Edema in Rats.
Hajhashemi V, Safaei S
BACKGROUND: Boswellia species have been used for treatment of chronic inflammatory disease. Several studies have documented the anti-inflammatory effect of Boswellic acids (BAs) after systemic administration. This study was aimed to evaluate the effect of some skin penetration enhancers on topical anti-inflammatory effect of BAs in rats.
MATERIALS AND METHODS: Male Wistar rats weighting 180-220 were used. Anti-inflammatory activity was assessed using carrageenan test. BAs dissolved in ethanol, propylene glycol 2%, 5%, olive oil and applied topically. Menthol, D-limonene, or eucalyptus oil 0.5%, 1% were also tested as other skin penetration enhancers and applied topically 30 min prior to subplantar injection of carrageenan into the right hind paw of rats. The volume of the paw was measured at 0 and 4 h after carrageenan with a digital plethysmometer and the difference was used as an index of inflammation. Piroxicam gel was used as a standard drug.
RESULTS: A 4% ethanolic solution of BAs showed significant anti-inflammatory effect. Propylene glycol (2% and 5%) in alcohol did not change the effect. Olive oil also enhanced penetration of BAs. Menthol 0.5%, 1% and D-limonene 0.5%, 1% did not show any significant change compared to olive oil alone. In the present study, eucalyptus oil 1% in olive oil was known as the best carrier for transdermal delivery of BAs.
CONCLUSION: BAs have considerable topical anti-inflammatory effects and olive oil alone or especially in combination with eucalyptus oil can be promising vehicles for skin penetration of topical BAs.
Adv Biomed Res. 2021;10():18.
PMID: 34476226 [PubMed - as supplied by publisher]
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| 34. |
Optimization for synthesis of silver nanoparticles through response surface methodology using leaf extract of Boswellia sacra and its application in antimicrobial activity.
Azmi SNH, Al-Jassasi BMH, Al-Sawafi HMS, Al-Shukaili SHG, Rahman N, Nasir M
In the present work, leaf extract of Boswellia sacra was used as reductant for synthesis of silver nanoparticles (AgNPs). The variables such as volume of Boswellia sacra leaf extract (1%), volume of silver nitrate (1 mM), and temperature were optimized by response surface methodology via Box-Behnken design for the synthesis of AgNPs. Design-Expert software generated the optimum conditions for the highest yield of silver nanoparticles as 8 mL of 1 mM AgNO, 8 mL of 1% Boswellia sacra leaf extract, and temperature = 55 °C. The formed AgNPs were isolated and purified by centrifugation process using ethanol/ distilled water. AgNPs were characterized using FTIR, SEM, TEM, EDX, and XRD. AgNPs showed surface plasmon resonance absorption band at 422 nm. XRD pattern indicated the crystalline nature of the particles (diameter 11.17 to 37.50 nm) with face-centered cubic structure. SEM and TEM images highlighted the formation of spherical AgNPs. The energy dispersive spectroscopic spectrum confirmed the presence of elemental silver. The microbial activity of AgNPs was evaluated against bacteria and fungi. Synthesized AgNPs were very effective against Gram-positive E. coli bacterial strains and fungal strains (Penicillium chrysogenum).
Environ Monit Assess. 2021 Jul;193(8):497.
PMID: 34286386 [PubMed - indexed for MEDLINE]
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| 35. |
A protein-sulfosalicylic acid/boswellic acids @metal-organic framework nanocomposite as anticancer drug delivery system.
Özsoy M, Atiroğlu V, Guney Eskiler G, Atiroğlu A, Deveci Ozkan A, Özacar M
The metal-organic frameworks (MOF) have shown fascinating possibilities in biomedical applications, designing a multifunctional drug delivery system based on the MOF is important. In this study, 5-sulfosalicylic acid and boswellic acids (BAs) were loaded to the pH sensitive zeolitic imidazolate framework-8 (ZIF-8) nanocomposite containing bovine serum albumin (BSA) as the center. The ZIF layer acts as a capsule for the nontoxic storage of 5-sulfosalicylic acid and boswellic acids (BAs) under physiological conditions. The results of the characterization demonstrated the performance of the nanocarrier formation. The pH-sensitive drug release of 5-sulfosalicylic acid was detected due to the innate pH-dependent stability of ZIF-8. An effective pH-sensitive drug delivery system using a 5-sulfosalicylic acid/BSA@ZIF-8, and 5-sulfosalicylic acid/BSA/BAs@ZIF-8, in which the 5-sulfosalicylicacid is not free in physiological pH but it is released at acidic pH (5.0) has been fabricated. The best biocompatibility has been found in 5-sulfosalicylic acid/BSA/BAs@ZIF-8 comparing to the 5-sulfosalicylic acid/BSA, 5-sulfosalicylic acid /BSA/BAs, and 5-sulfosalicylic acid/BSA@ZIF-8. Additionally, 5-sulfosalicylic acid/BSA /BAs@ZIF-8 exhibited higher effectiveness than other compounds against the breast cancer cell line, MCF-7, with less toxicity. It is concluded from the results of the current study that the fabricated ZIF-8 based nanocarrier may potentially provide therapeutic effects on breast cancer cells.
Colloids Surf B Biointerfaces. 2021 Aug;204():111788.
PMID: 33932885 [PubMed - indexed for MEDLINE]
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| 36. |
In vitro anti-inflammatory and antioxidant activities of ZnFe O and CrFe O nanoparticles synthesized using Boswellia carteri resin.
Imraish A, Abu Thiab T, Al-Awaida W, Al-Ameer HJ, Bustanji Y, Hammad H, Alsharif M, Al-Hunaiti A
The development of plant-based nano-materials is considered an eco-friendly technology because it does not involve hazardous chemicals. In this study, bimetallic ZnFe O and CrFe O nanoparticles were synthesized using an aqueous extract of Boswellia carteri resin. Synthesized ZnFe O and CrFe O nanoparticles were characterized by UV-Vis spectroscopy, FTIR, XRD, and HR-TEM. The anti-inflammatory activity was investigated in LPS-stimulated RAW 264.7 macrophages, whereas antioxidant activity was examined using a Hydrogen Peroxide Scavenging Activity Assay, Nitric Oxide Scavenging Activity Assay, and ABTS Radical Scavenging Assay. ZnFe O and CrFe O nanoparticles demonstrated a moderate scavenger of H O with IC values; 87.528 ± 8 μg/ml and 146.4468 ± 12 μg/ml, respectively. While they exhibited a strong scavenger of NO with IC values; 4.01 ± 0.7 μg/ml and 4.01 ± 0.7μg/ml, respectively. Interestingly, ZnFe O and CrFe O nanoparticles revealed an excellent anti-inflammatory activity by dose-dependently suppressing mRNA expressions of IL-1b, IL-6, and TNF-α. Also, ZnFe O and CrFe O nanoparticles suppress the protein expression of TNF-α. Together, our results proved that phyto-mediated ZnFe O and CrFe O nanoparticles using Boswellia carteri resin have great potential in biomedical applications such as anti-inflammatory and antioxidant. PRACTICAL APPLICATIONS: Our phyto-synthesized chromium iron oxide bimetallic nanoparticles (NPs) have shown a novel and potent anti-inflammatory activity, with remarkable biosafety toward tested macrophages. Zinc iron oxide bimetallic NPs exhibited anti-inflammatory effect with a lesser extent compared to the former, with moderate cytotoxicity against tested macrophages. Both zinc and chromium iron oxide NPs exhibited an equivalent antioxidant activity. Our resin-capped chromium iron oxide NPs are suggested to be a competing nonsteroidal anti-inflammatory agent; it is further recommended to establish advanced animal studies to confirm their biosafety, stability, and anti-inflammatory activity accompanied with the antioxidant activity.
J Food Biochem. 2021 Jun;45(6):e13730.
PMID: 33880765 [PubMed - indexed for MEDLINE]
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| 37. |
Modified Bacterial Cellulose Dressings to Treat Inflammatory Wounds.
Beekmann U, Zahel P, Karl B, Schmölz L, Börner F, Gerstmeier J, Werz O, Lorkowski S, Wiegand C, Fischer D, Kralisch D
Natural products suited for prophylaxis and therapy of inflammatory diseases have gained increasing importance. These compounds could be beneficially integrated into bacterial cellulose (BC), which is a natural hydropolymer applicable as a wound dressing and drug delivery system alike. This study presents experimental outcomes for a natural anti-inflammatory product concept of boswellic acids from frankincense formulated in BC. Using esterification respectively (resp.) oxidation and subsequent coupling with phenylalanine and tryptophan, -modification of BC was tested to facilitate lipophilic active pharmaceutical ingredient (API) incorporation. Diclofenac sodium and indomethacin were used as anti-inflammatory model drugs before the findings were transferred to boswellic acids. By acetylation of BC fibers, the loading efficiency for the more lipophilic API indomethacin and the release was increased by up to 65.6% and 25%, respectively, while no significant differences in loading could be found for the API diclofenac sodium. -modifications could be made while preserving biocompatibility, essential wound dressing properties and anti-inflammatory efficacy. Eventually, in vitro wound closure experiments and evaluations of the effect of secondary dressings completed the study.
Nanomaterials (Basel). 2020 Dec;10(12):.
PMID: 33327519 [PubMed - as supplied by publisher]
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| 38. |
Antiproliferative effects of boswellic acid-loaded chitosan nanoparticles on human lung cancer cell line A549.
Solanki N, Mehta M, Chellappan DK, Gupta G, Hansbro NG, Tambuwala MM, Aa Aljabali A, Paudel KR, Liu G, Satija S, Hansbro PM, Dua K, Dureja H
In the present study boswellic acids-loaded chitosan nanoparticles were synthesized using ionic gelation technique. The influence of independent variables were studied and optimized on dependent variables using central composite design. The designed nanoparticles were observed spherical in shape with an average size of 67.5-187.2 nm and have also shown an excellent entrapment efficiency (80.06 ± 0.48). The cytotoxicity assay revealed enhanced cytotoxicity for drug-loaded nanoparticles in contrast to the free drug having an IC value of 17.29 and 29.59 μM, respectively. Flow cytometry confirmed that treatment of cells with 40 μg/ml had arrested 22.75 ± 0.3% at SubG phase of the cell cycle when compared with untreated A459 cells. The observed results justified the boswellic acids-loaded chitosan nanoparticles were effective due to greater cellular uptake, sustained intercellular drug retention and enhanced antiproliferative effect by inducing apoptosis.
Future Med Chem. 2020 Nov;12(22):2019-2034.
PMID: 33124483 [PubMed - indexed for MEDLINE]
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| 39. |
-Mediated Silver Nanoparticles Inhibited Acute Myeloid Leukemia (AML) Kasumi-1 Cells by Inducing Cell Cycle Arrest.
Adebayo IA, Usman AI, Shittu FB, Ismail NZ, Arsad H, Muftaudeen TK, Samian MR
BACKGROUND: Acute myeloid leukemia (AML) persists to be a major health problem especially among children as effective chemotherapy to combat the disease is yet to be available. is a well-known herb that is traditionally used for treatment and management of many diseases including degenerative diseases. In this study, silver nanoparticles were synthesized from the phytochemicals of stem bark aqueous extract. The silver nanoparticles were characterized by carrying out Fourier Transform Infrared (FTIR) spectroscopy, Energy Filtered Scanning Electron Microscopy (FESEM), X-ray diffraction, and Dynamic Light Scattering (DLS) analyses. Antioxidant capacity of the nanoparticles was evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, and the antiproliferative effect of the nanoparticles on Kasumi-1 leukemia cells was investigated using PrestoBlue assay. Flow cytometry analysis was performed to observe the effect of the nanoparticles on the leukemia cell cycle progression.
RESULTS: Our findings revealed that the synthesized silver nanoparticles were formed from electrons of the plant phytochemicals which include aromatic compounds, ethers, and alkynes. FESEM analysis revealed that the sizes of the nanoparticles range from 12 nm to 101 nm; however, DLS analysis estimated a larger average size of the nanoparticles (108.3 nm) because it measured the hydrodynamic radii of the nanoparticles. The zeta potential of the nanoparticles was -16 nm, and the XRD pattern of the nanoparticles has distinct peaks at 38.02°, 42.94°, 64.45°, 77.20°, and 81.47°, which is typical of face-centered cubic (fcc) structure of silver. The Trolox Equivalence Antioxidant Capacity (TEAC) of the nanoparticles was estimated to be 300.91 M Trolox/mg silver nanoparticles. The nanoparticles inhibited Kasumi-1 cell proliferation. The half minimal inhibitory concentrations (IC50s) that inhibited Kasumi-1 cell proliferation are 49.5 g/ml and 13.25 g/ml at 48 and 72 hours, respectively. The nanoparticles induced cell cycle arrest in the Kasumi-1 cells at S (5% increase) and G2/M (3% increase) phases.
CONCLUSION: The nanoparticles synthesized from the stem bark extract of inhibit the growth of Kasumi-1 leukemia cells by activating cell cycle arrest; thus, they are potential antileukemic agents.
Bioinorg Chem Appl. 2020;2020():8898360.
PMID: 33029114 [PubMed - as supplied by publisher]
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| 40. |
Formulation of Nanospanlastics as a Promising Approach for Improving the Topical Delivery of a Natural Leukotriene Inhibitor (3-Acetyl-11-Keto-β-Boswellic Acid): Statistical Optimization, in vitro Characterization, and ex vivo Permeation Study.
Badria F, Mazyed E
PURPOSE: The current study aimed to discuss the potential of nanospanlastics as a surfactant-based vesicular system for improving the topical delivery of 3-acetyl-11-keto-β-boswellic acid (AKBA). AKBA is a potent anti-inflammatory drug, but it has poor oral bioavailability due to its poor aqueous solubility. Moreover, the topical delivery of AKBA is difficult due to its high lipophilicity. To overcome these drawbacks, AKBA was formulated as deformable elastic nanovesicles and nanospanlastics, for improving its topical delivery.
MATERIALS AND METHODS: AKBA-loaded spanlastic nanovesicles (SNVs) were formulated by ethanol injection technique according to 2 factorial design using Span 60 as a non-ionic surfactant and Tween 80 as edge activator (EA) to investigate the effect of different independent variables on entrapment efficiency (EE%), % drug released after 8 hr (Q) and particle size (PS) using Design-Expert software. In vitro characterization, stability test and ex vivo permeation study of the optimized formula were performed.
RESULTS: The choice of the optimized formula was based on the desirability criteria. F7 was selected as the optimized formula because it has the highest desirability value of 0.648. F7 exhibited EE% of 90.04±0.58%, Q of 96.87±2.67%, PS of 255.8±2.67 nm, and zeta potential of -49.56 mV. F7 appeared as spherical well-defined vesicles in both scanning electron microscope (SEM) and transmission electron microscope (TEM). The Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC) studies investigated the absence of interaction between AKBA and different excipients and good encapsulation of AKBA within SNVs. F7 retained both physical and chemical stability after storage for 3 months at 4-8 °C. Ex vivo permeation test exhibited significant enhancement of permeability of F7 across rat skin than the free drug.
CONCLUSION: Nanospanlastics could be a promising approach for improving the permeability and topical delivery of AKBA.
Drug Des Devel Ther. 2020;14():3697-3721.
PMID: 32982176 [PubMed - indexed for MEDLINE]
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| 41. |
Influence of boswellic acid on multifunctional properties of chitosan/poly (vinyl alcohol) films for active food packaging.
Narasagoudr SS, Hegde VG, Chougale RB, Masti SP, Dixit S
Present work aimed to develop active packaging films based on chitosan (CS), poly (vinyl alcohol) (PVA) and boswellic acid (BA), and to evaluate the effect of BA on multifunctional properties of CS/PVA (CPBA) active films. Different compositions of active packaging films were prepared by the solvent casting method. The results indicated that incorporation of BA enhanced the ultraviolet blocking, morphology, mechanical properties, water solubility and hydrophilicity of the CPBA active films. Significant improvement in the barriers properties of BA incorporated CPBA active films were observed. The microbiological screening has demonstrated the antimicrobial activity of the films against Escherichia coli, Staphylococcus aureus and Candida albicans. Furthermore, the prepared active films do not deteriorate the thermal properties after incorporation of BA. The overall migration values of the CPBA active films in contact with food simulants were within the permitted limits. The obtained results indicate that the CPBA active film may be a promising material for food packaging applications.
Int J Biol Macromol. 2020 Jul;154():48-61.
PMID: 32173434 [PubMed - indexed for MEDLINE]
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| 42. |
Development of Chitosan-Based Hydrogel Containing Antibiofilm Agents for the Treatment of Staphylococcus aureus-Infected Burn Wound in Mice.
Chhibber T, Gondil VS, Sinha VR
Methicillin-resistant Staphylococcus aureus (MRSA) is considered a common colonizer of burn wound and accounts for high morbidity and mortality all across the globe. Systemic antibiotic therapy which is generally prescribed for these patients has a number of limitations. These include high drug dose, toxicity, and chances of development of drug resistance. However, local delivery of drug not only addresses these limitations but also provides better efficacy at the site of infection. In the present study, hydrogel preparations were developed for the topical delivery of moxifloxacin for the treatment of S. aureus-infected burn wound. Moxifloxacin was characterized by UV, FTIR, DSC, hot-stage microscopy, NMR, and HPLC and loaded into conventional and Boswellia-containing novel gels. Gels were characterized by visual examination, pH, UV spectroscopy, and release assays. In vivo studies showed that both gels were effective in eradicating the bacteria completely from the wound site when treatment was started during the early stage of infection. On the contrary, delayed treatment of planktonic and biofilm cells with novel gel showed better efficacy as compared with conventional gel in S. aureus-infected burn wound. Histopathological analysis also showed better skin healing efficacy of novel gel than conventional gel. Our results show that moxifloxacin can be efficiently used topically in the management of burn wound infections along with other antibacterial agents. Since biofilm-mediated infections are on the rise especially in chronic bacterial disease, therefore, a preparation containing antibiofilm agent-like Boswellia as one of the excipients would be more meaningful.
AAPS PharmSciTech. 2020 Jan;21(2):43.
PMID: 31897806 [PubMed - indexed for MEDLINE]
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| 43. |
Essential oils of and have effective antidermatophytic activities and that are antagonised by ketoconazole and potentiated in gold nanospheres.
Carmo PHF, Costa MC, Franco PHC, Lage ACP, Rocha CEV, Chaves CR, Faraco AAG, Ladeira LO, Aguilar JLL, César IC, Paixão TA, Resende-Stoianoff MA, Santos DA
The investigation of the effects of three essential oils (EOs) from (FRA), (TTO) and (IF), alone and combined with ketoconazole (KTZ), and their functionalised gold nanoparticles (AuNP) against both and indicated that EOs presented activity against . The combination of EOs and KTZ was antagonistic. FRA, TTO, gold nanoparticles capped with (AuNPFRA) and gold nanoparticles capped with (AuNPTTO) presented antidermatophytic activity , with the capacity to reduce fungal burden and to preserve tissue architecture; however, combination treatment with KTZ increased fungal burden and caused tissue damage. The combination of EO with KTZ exhibited antagonistic activity and was histologically harmful. In contrast, FRA, TTO, AuNPFRA and AuNPTTO are promising treatments for dermatophytosis.
Nat Prod Res. 2021 Nov;35(22):4694-4697.
PMID: 31894699 [PubMed - indexed for MEDLINE]
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| 44. |
UV-responsive AKBA@ZnO nanoparticles potential for polymorphous light eruption protection and therapy.
Huang X, Nisar MF, Wang M, Wang W, Chen L, Lin M, Xu W, Diao Q, Zhong JL
Polymorphous light eruption (PLE) is one of the acquired idiopathic photodermatosis mainly induced by immoderate UV radiation. In order to realize UV protection and medicine administration simultaneously for polymorphous light eruption protection and therapy, Acetyl-11-keto-β-boswellic acid (AKBA) loaded Zinc Oxide (ZnO) nanoparticles of which drug release behavior is UV-controlled has been successfully synthesized. Such nanoparticles can not only reflect UV but also transfer the energy to release AKBA which presents an excellent antioxidant and anti-inflammatory effects. In addition, they are biocompatible to HaCaT cells. As a result, they have a great potential in combining UV protection and medicine administration simultaneously for PLE protection and therapy.
Mater Sci Eng C Mater Biol Appl. 2020 Feb;107():110254.
PMID: 31761216 [PubMed - indexed for MEDLINE]
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| 45. |
A bioinspired 3D shape olibanum-collagen-gelatin scaffolds with tunable porous microstructure for efficient neural tissue regeneration.
Ghorbani F, Zamanian A, Kermanian F, Shamoosi A
There are a number of procedures for regeneration of injured nerves; however, tissue engineering scaffolds seems to be a promising approach for recovery of the functionality of the injured nerves. Consequently, in this study, olibanum-collagen-gelatin scaffolds were fabricated by freeze-cast technology. For this purpose, the olibanum and collagen were extracted from natural sources. The effect of solidification gradient on microstructure and properties of scaffolds was investigated. Scanning electron microscopy micrographs showed the formation of lamellar-type microstructure in which the average pore size reduced with an increase in freezing rate. According to the results, the prepared scaffolds at lower freezing rate showed a slight reduction in mechanical strength while the swelling and biodegradation ratio were increased due to the presence of larger pores and unidirectional channels. The composition of scaffolds and oriented microstructure improved cellular interaction. In addition, scaffolds with lower freezing rate exhibited promising results in terms of adhesion, spreading, and proliferation. In brief, the synthesized scaffolds at lower solidification rate have the potential for more in vitro and in vivo analyses to regeneration of neural defects.
Biotechnol Prog. 2020 Jan;36(1):e2918.
PMID: 31576679 [PubMed - indexed for MEDLINE]
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| 46. |
Correction to: Metabolic Profile of 3-Acetyl-11-Keto-β-Boswellic Acid and 11-Keto-β-Boswellic Acid in Human Preparations In Vitro, Species Differences, and Bioactivity Variation.
Cui Y, Tian X, Ning J, Wang C, Yu Z, Wang Y, Huo X, Jin L, Deng S, Zhang B, Ma X
The authors regret that Fig. 7d for the group: LPS+M-2 (80 μM) was mistakenly uploaded.
AAPS J. 2019 Aug;21(5):100.
PMID: 31414253 [PubMed - as supplied by publisher]
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| 47. |
Measurement of 3-acetyl-11-keto-beta-boswellic acid and 11-keto-beta-boswellic acid in Boswellia serrata Supplements Administered to Dogs.
Miscioscia E, Shmalberg J, Scott KC
BACKGROUND: Osteoarthritis is a common canine disease frequently treated with nutritional supplements that often lack independent verification of ingredients, active ingredient concentration, efficacy, or safety. Human supplements containing Boswellia serrata extracts (BSE) with high concentrations of active constituents 3-acetyl-11-keto-β-boswellic acid (AKBA) and 11-keto-β-boswellic acid (KBA) are bioavailable, safe, and efficacious in the alleviation of symptoms of naturally occurring osteoarthritis in people. Thus, oral AKBA and/or KBA supplementation could be a promising novel therapy for dogs with osteoarthritis. The primary objective of this study was to determine the concentrations of AKBA and KBA within six human and seven canine market formulations containing BSE administered to dogs, using a derivation of the previously validated high performance liquid chromatography (HPLC) method. The secondary objective was to compare measured concentrations to label claims.
RESULTS: The mean concentrations of AKBA and KBA within the formulations tested were 42.3 mg/g AF (0.1-155.7 mg/g AF) and 5.2 mg/g AF (0-24.8 mg/g AF), respectively, with four of the formulations containing an undetectable amount of KBA. None of the market formulations had a label claim for KBA. For the five tested formulations with a label claim for AKBA, the mean percentage of detected AKBA was 173% of the concentration listed on the label (range: 114-224%). Formulations claiming to contain AKBA had a mean AKBA concentration of 98.2 mg/g AF, significantly higher than formulations claiming only to contain BSE (7.4 mg/g AF; p = 0.01).
CONCLUSIONS: This study demonstrated a large variation of boswellic acid concentrations in market formulations claiming to contain BSE, with products claiming to contain AKBA containing higher concentrations of AKBA than other products. There was also a large variation in, and overall high, percent difference between label claims and measured concentrations of AKBA. All products met or exceeded label claims. However, differences between label amounts and detected concentrations confirm the need for independent laboratories to quantify concentrations of active ingredients in supplements containing BSE. This would be necessary prior to the use of these formulations in the research or clinical setting.
BMC Vet Res. 2019 Aug;15(1):270.
PMID: 31370899 [PubMed - indexed for MEDLINE]
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| 48. |
A novel lecithin-based delivery form of Boswellic acids as complementary treatment of radiochemotherapy-induced cerebral edema in patients with glioblastoma multiforme: a longitudinal pilot experience.
Di Pierro F, Simonetti G, Petruzzi A, Bertuccioli A, Botta L, Bruzzone MG, Cuccarini V, Fariselli L, Lamperti E
BACKGROUND: Glioblastoma multiforme (GBM) is an extremely challenging neurological disease for which the development of more effective therapeutic options and of adjuvant/complementary treatment is needed. We investigated the effects of an innovative phytosome-based delivery form of boswellic acids extract (Monoselect AKBA™) on radiochemotherapy-induced cerebral edema in patients with primary GBM.
METHODS: Patients with de novo GBM treated with surgery, radiotherapy and chemotherapy with temozolomide were enrolled in this longitudinal study and received boswellia-based product 4500 mg/die for a maximum of 34 weeks. Cerebral edema was assessed at 4, 12, 22 and 34 weeks post-surgery, together with steroids consumption and patients' psychological status.
RESULTS: A total of 20 patients were included in the study. The percentage of patients with reduced edema was constant during the study, while the percentage of those with reduced or stable edema tended to increase over time. Of note, two patients achieved a considerable reduction in brain edema, which led to a more favorable and beneficial surgical resection. In addition, a good percentage of patients assumed a stable/reduced steroids dose or were dexamethasone free during the study. Lastly, patients' QoL and psychological state were maintained throughout the study.
CONCLUSIONS: Complementary treatment with Monoselect AKBA™ might exert a beneficial effect in reducing radiochemotherapy-induced cerebral edema, thanks to the anti-inflammatory properties of the boswellia serrata extract. The reduction in brain edema might diminish dexamethasone assumption, thus minimizing steroids-induced side effects, and in few cases may allow a complete surgical excision of the tumor mass.
J Neurosurg Sci. 2019 Jun;63(3):286-291.
PMID: 31096725 [PubMed - indexed for MEDLINE]
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| 49. |
Organic Certification is Not Enough: The Case of the Methoxydecane Frankincense.
Johnson S, DeCarlo A, Satyal P, Dosoky NS, Sorensen A, Setzer WN
Frankincense, the oleo-gum-resin of trees, has been an important religious and medicinal element for thousands of years, and today is used extensively for essential oils. One of the most popular frankincense species is Flueck. (syn. Birdw.) from Somalia and Somaliland. Recent increases in demand have led to many areas being overharvested, emphasizing the need for incentives and monitoring for sustainable harvesting, such as certification schemes. Concurrently, a new chemical component, called methoxydecane, has emerged in oils claimed to be , suggesting the possibility of a chemical marker of overharvesting or other stress that could aid in monitoring. To find the source of this new chemical component, we sampled resin directly from trees in areas producing the new methoxydecane chemotype. This revealed that methoxydecane comes not from , but from a newly described frankincense species, . The presence of oil in essential oil sold as pure , including certified organic oil, emphasizes the current lack of traceability in the supply chain and the ineffectiveness of organic certification to secure purity and sustainable harvesting in wildcrafted species.
Plants (Basel). 2019 Apr;8(4):.
PMID: 30987305 [PubMed - as supplied by publisher]
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| 50. |
Dietary Ingredients Requiring Further Research Before Evidence-Based Recommendations Can Be Made for Their Use as an Approach to Mitigating Pain.
Crawford C, Boyd C, Berry K, Deuster P,
OBJECTIVE: Approximately 55-76% of Service members use dietary supplements for various reasons; although such use has become popular, decisions are often driven by information that is not evidence-based. This work evaluates whether current research on dietary ingredients for chronic musculoskeletal pain provides sufficient evidence to inform decisions for practice and self-care, specifically for Special Operations Forces personnel.
METHODS: A steering committee convened to develop research questions and factors required for decision-making. Key databases were searched through August 2016. Eligible systematic reviews and randomized controlled trials were assessed for methodological quality. Meta-analysis was applied where feasible. Grading of Recommendations, Assessment, Development and Evaluation was used to determine confidence in the effect estimates. The committee used a decision table to make evidence-informed judgments across decision-making factors and recommendations for practice and self-care use.
RESULTS: Nineteen dietary ingredients were assessed. No recommendations were given for boswellia, ginger, rose hip, or s-adenosyl-L-methionine (SAMe); specifically, although ginger can be obtained via food, no recommendation is provided for use as a supplement due to unclear research. Further, there were insufficient strong research on boswellia and SAMe and possible compliance issues (i.e., high number of capsules required daily) associated with rose hip.
CONCLUSIONS: No recommendations were made when the evidence was low quality or trade-offs were so closely balanced that any recommendation would be too speculative. Research recommendations are provided to enhance the quality and body of evidence for the most promising ingredients. Clinicians and those with chronic pain can rely on evidence-based recommendations to inform their decisions.
Pain Med. 2019 Aug;20(8):1619-1632.
PMID: 30986310 [PubMed - indexed for MEDLINE]
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| 51. |
Micellar solubilisation enhances the antiinflammatory activities of curcumin and boswellic acids in rats with adjuvant-induced arthritis.
Khayyal MT, El-Hazek RM, El-Sabbagh WA, Frank J, Behnam D, Abdel-Tawab M
OBJECTIVE: Native extracts of curcumin and boswellia are known to exert antiinflammatory properties but have poor bioavailability when given orally. Using advanced micellation technology, it has been possible to produce stable solubilisates of these extracts with markedly enhanced bioavailability. In the present study, we compared the chronic antiinflammatory activities of native and micellar curcumin in the rat adjuvant arthritis model, using diclofenac as a reference drug.
METHODS AND PROCEDURES: Adjuvant arthritis was induced by injecting Freund's complete adjuvant (FCA) into the right hind paw of rats and monitoring paw volume over 3 wk. The drugs were given daily for 3 wk, starting from the day of adjuvant inoculation. The serum was collected at end of the experiment for the assay of inflammatory and oxidative stress parameters. Statistical comparisons between different groups were carried out by one-way analysis of variance followed by Tukey-Kramer multiple comparison test.
RESULTS: Solubilized curcumin showed better antiinflammatory activity than its native form. The reduction in paw volume was reflected in corresponding changes in relevant mediators of inflammation like tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), C-reactive protein (CRP), myeloperoxidase (MPO), and lipid peroxidation markers. The combination of curcumin and boswellia solubilisates synergistically produced an even more potent therapeutic effect.
CONCLUSION: The findings confirm that micellar solubilisation of curcumin and boswellia not only increases their bioavailability, but also enhances their biological activity. Micellar curcumin, in particular in combination with micellar boswellia, may thus represent a promising concomitant tool for antiinflammatory treatment and a potential antiinflammatory alternative to synthetic drugs.
Nutrition. 2018 Oct;54():189-196.
PMID: 30048884 [PubMed - indexed for MEDLINE]
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| 52. |
Screening for the anti-inflammation quality markers of Xiaojin Pills based on HPLC-MS/MS method, COX-2 inhibition test and protein interaction network.
Xiong X, He YN, Feng B, Pan Y, Zhang HZ, Ke XM, Zhang Y, Yang M, Han L, Zhang DK
Nowadays, breast disorders seriously affect women's health in an increasing number. In China, Xiaojin Pills are commonly used in the treatment of breast diseases. Doctors have concluded that the combined use of Xiaojin Pills with conventional therapy can significantly improve the efficacy with fewer side effects. However, the prescription of Xiaojin Pills is complicated and their quality control methods cannot completely ensure the quality of Xiaojin Pills. On the basis of its mechanism, our study combined chemical evaluation and biological evaluation to identify the anti-inflammatory markers of Xiaojin Pills. In this manuscript, 13 compounds in Xiaojin Pills were quantified. At the same time, the cyclooxygenase-2 inhibition rates of different Xiaojin Pills were measured and the possible markers were screened by spectrum-effect relationship. Further, anti-inflammatory activities of markers were verified and protein interaction network was analyzed, identifying the components of Protocatechuate, Beta-Boswellic acid and Levistilide A as the anti-inflammatory quality markers of Xiaojin Pills. We hope our studies can provide a scientific theoretical basis for accurately quality control of Xiaojin Pills and reasonable suggestions for pharmaceutical companies and new ideas for the quality control of other medicines.
Sci Rep. 2018 May;8(1):7454.
PMID: 29748583 [PubMed - indexed for MEDLINE]
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| 53. |
A novel lecithin based delivery form of Boswellic acids (Casperome®) for the management of osteo-muscular pain: a registry study in young rugby players.
Franceschi F, Togni S, Belcaro G, Dugall M, Luzzi R, Ledda A, Pellegrini L, Eggenhoffner R, Giacomelli L
OBJECTIVE: Several experimental studies and clinical trials support the potential of Boswellia serrata extracts (BSE) for the treatment of various inflammatory diseases. The aim of this registry study was to assess the safety and the efficacy of a novel lecithin-based delivery form of Boswellia serrata extract (Casperome®) in the supportive management of osteo-muscular pain.
PATIENTS AND METHODS: 52 healthy young rugby players with acute knee pain and inflammation were recruited. Informed participants freely decided to follow either a standard management (SM) to control joint pain (control group = 27) or SM associated with oral daily supplementation with Casperome® (supplement group =25). Parameters associated with osteo-muscular pain and inflammation, and measurements of joint health and functions were assessed at the inclusion and after a 4-week supplementation.
RESULTS: A significant beneficial effect of Casperome® vs SM alone was observed for all the parameters evaluated, namely: local pain on effort; pain-free walking distance (treadmill test); minimal joint effusion; structural damage (joint, tendons, muscles) and intramuscular hematomas; thermal imaging of the anterior knee; Visual Analog Scale for Pain (VAS Pain); need for concomitant drugs and medical attention; measurement of inflammatory biomarkers.
CONCLUSIONS: Our registry study suggests that Casperome® supplementation could represent an effective and safe, integrated approach for the treatment of osteo-muscular pain and inflammation.
Eur Rev Med Pharmacol Sci. 2016 Oct;20(19):4156-4161.
PMID: 27775780 [PubMed - indexed for MEDLINE]
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| 54. |
A single-dose, randomized, cross-over, two-way, open-label study for comparing the absorption of boswellic acids and its lecithin formulation.
Riva A, Morazzoni P, Artaria C, Allegrini P, Meins J, Savio D, Appendino G, Schubert-Zsilavecz M, Abdel-Tawab M
BACKGROUND: The oral administration of the gum resin extracts of Indian frankincense (Boswellia serrata Roxb. ex Colebr) results in very low plasma concentrations of boswellic acids (BAs), being far below the pharmacologically active concentrations required in vitro for anti-inflammatory activity. For that reason the use of Indian frankincense in clinical practice and pharmaceutical development has substantially lagged behind. Recently the application of new formulation technologies resulted in a formulation of frankincense extract with lecithin, which revealed improved absorption and tissue penetration of BAs in a rodent study, leading for the first time to plasma concentrations of BAs in the range of their anti-inflammatory activity.
PURPOSE: In order to verify these encouraging results in humans, the absorption of a standardized Boswellia serrata extract (BE) and its lecithin formulation (CSP) was comparatively investigated in healthy volunteers.
STUDY DESIGN: According to a randomized cross-over design with two treatments, two sequences and two periods, 12 volunteers alternatively received the lecithin-formulated Boswellia extract (CSP) or the non-formulated Boswellia extract (BE) at a dosage of 2×250mg capsules.
METHODS: The plasma concentrations of the six major BAs (KBA, AKBA, βBA, αBA, AβBA, AαBA) were determined using LC/MS.
RESULTS: With the exception of KBA, a significantly higher (both in terms of weight-to-weight and molar comparison) and quicker absorption of BAs from the lecithin formulation was observed, leading to C in the range required for the interaction with their molecular targets.
CONCLUSION: These findings pave the way to further studies evaluating the clinical potential of BAs, and verify the beneficial effect of lecithin formulation to improve the absorption of poorly soluble phytochemicals.
Phytomedicine. 2016 Nov;23(12):1375-1382.
PMID: 27765357 [PubMed - indexed for MEDLINE]
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| 55. |
Improved efficacy of cisplatin in combination with a nano-formulation of pentacyclic triterpenediol.
Alam N, Qayum A, Kumar A, Khare V, Sharma PR, Andotra SS, Singh SK, Koul S, Gupta PN
Cisplatin is widely used for the treatment of various cancers including cervical, ovarian, lung and head and neck, however, its clinical success is limited owing to the dose-dependent adverse effects, mainly nephrotoxicity and neurotoxicity. In order to address this limitation, the present study was undertaken to investigate growth inhibitory effect of cisplatin in combination with a triterpenediol (3a, 24-dihydroxyurs-12-ene and 3a, 24-dihydroxyolean-12-ene, TPD) on human ovarian cancer cell line. Poly(dl-lactic-co-glycolic) acid nanoparticles loaded with TPD (TPD-PLGA-NPs) were successfully developed by emulsion solvent evaporation method. The TPD-PLGA-NPs were characterized for size distribution and zeta potential which was in order of 152.56±3.01nm and -17.36±0.37mV respectively. The morphological evaluation was carried out by transmission electron microscopy and the formulation was also characterized using Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). The drug loading of the optimized formulation was 51.03±1.52μg/mg and the formulation exhibited sustained drug release profile. The in vitro cellular uptake study of coumarin-6 loaded PLGA nanoparticles in OVCAR-5 cells demonstrated a time dependent increase in uptake efficiency. Further, growth inhibitory effect of cisplatin was investigated in combination with TPD-PLGA-NPs. The combination index (CI) was <1, indicating a synergistic interaction. Further, at 75% of cell growth inhibition (ED75) the dose of cisplatin was reduced to 3.8 folds using this combination. The results indicated the potential of cisplatin and TPD-PLGA-NPs combination in order to reduce to dose limiting toxicities of the former.
Mater Sci Eng C Mater Biol Appl. 2016 Nov;68():109-116.
PMID: 27524002 [PubMed - indexed for MEDLINE]
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| 56. |
Nanoparticle formulation of 11-keto-β-boswellic acid (KBA): anti-inflammatory activity and in vivo pharmacokinetics.
Bairwa K, Jachak SM
CONTEXT: The oleo-gum-resin of Boswellia serrata Roxb. (Burseraceae) is widely used for the treatment of inflammatory diseases such as osteoarthritis, rheumatoid arthritis and cancer. Anti-inflammatory activity of 11-keto-β-boswellic acid (KBA) is impeded by poor oral bioavailability due to its high lipid solubility, rapid phase-1 metabolism and poor intestinal permeability.
OBJECTIVE: This study developed a poly-dl-lactide-co-glycolide-based nanoparticle formulation of KBA to improve its oral bioavailability and in vivo anti-inflammatory activity.
MATERIALS AND METHODS: KBA was isolated from the oleo-gum resin of B. serrata, and its nanoparticle formulation (KBA-NPs) was prepared by the emulsion-diffusion-evaporation method. Oral bioavailability of KBA and KBA-NPs was studied at 50 mg/kg p.o. dose in Sprague-Dawley rats, and further evaluated for in vivo anti-inflammatory activity in carrageenan-induced rat paw oedema assay at the same dose level.
RESULTS: The prepared KBA-NPs had a particle size of 152.6 nm with polydispersity index of 0.194, 79.7% entrapment efficiency and a cumulative 61.5% release of KBA from KBA-NPs, at 72 h. KBA-NPs showed 60.8% inhibition of rat paw oedema at 5 h as compared to 34.9% as that of KBA. The results of oral bioavailability study and in vivo anti-inflammatory activity showed 7- and 1.7-fold increase in bioavailability and anti-inflammatory activity, respectively, of KBA in KBA-NPs as compared to KBA alone.
CONCLUSION: The results of improved oral bioavailability and in vivo anti-inflammatory activity of KBA-NPs suggested successful development of KBA nanoparticle formulation.
Pharm Biol. 2016 Dec;54(12):2909-2916.
PMID: 27305832 [PubMed - indexed for MEDLINE]
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| 57. |
Survey on the Quality of the Top-Selling European and American Botanical Dietary Supplements Containing Boswellic Acids.
Meins J, Artaria C, Riva A, Morazzoni P, Schubert-Zsilavecz M, Abdel-Tawab M
In consideration of the increasing popularity of frankincense and the widely published quality problems associated with botanical dietary supplements, a survey was conducted for the first time on the quality of frankincense containing botanical dietary supplements. Six US products representing 78 % of the units sold and 70 % of the market value, and 11 European products representing 30 % of the units sold and 40 % of the market value were tested for their boswellic acid composition profile, label compliance, and claimed health benefits. Special focus was also set on the statements made with regard to the frankincense applied.Only five products out of seventeen disclosed all relevant information for the Boswellia extract, mentioning the species, the part of plant used, and the boswellic acid content. Whereas all products but one claimed to use Boswellia serrata, three products did not mention the resin as the part applied and 10 products did not declare the boswellic acid content. Apart from the different boswellic acid composition determined with a sensitive LC/MS method, 41 % of the products did not comply with the label declaration. Hence, one product from Italy did not contain any of the six characteristic boswellic acids (KBA, AKBA, αBA, βBA, AαBA, AβBA) at all and another US product contained only traces, suggesting the absence of frankincense or the use of Boswellia frereana instead of B. serrata. In another product, the ratios of the individual boswellic acids were different from B. serrata gum resin, indicating the use of another species such as Boswellia sacra or Boswellia carterii. Furthermore, two products revealed different boswellic acid contents from those declared on the label. Further, two products did not declare the use of manipulated Boswellia gum resin extract being enriched in acetyl-11-keto-boswellic acid content reaching up to 66 %. In addition, consumers could be misled by outdated literature or references to in vitro studies performed at dosages that can never be achieved in humans following oral administration.In summary, this survey reveals that in spite of increased regulations on botanical dietary supplements, the problem of mislabeling still exists and needs to be addressed by the manufacturers, so that consumers get greater confidence in the botanical dietary supplements they use.
Planta Med. 2016 Apr;82(6):573-9.
PMID: 27054914 [PubMed - indexed for MEDLINE]
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| 58. |
Carbon Dioxide Expanded Ethanol Extraction: Solubility and Extraction Kinetics of α-Pinene and cis-Verbenol.
Al-Hamimi S, Abellan Mayoral A, Cunico LP, Turner C
In general, diffusion rates in extractions are enhanced by increasing the temperature. In this study, we instead add compressed liquid carbon dioxide to the extraction phase to accomplish faster mass transfer. The feasibility of using carbon dioxide expanded ethanol (CXE) as the extraction phase was explored, targeting two medium-polar analytes, α-pinene and cis-verbenol in Boswellia sacra tree resin. Hansen solubility parameters (HSP) were first calculated for the analytes and the extraction phases investigated, ethanol, CXE, and supercritical carbon dioxide (scCO2) containing ethanol as a cosolvent. Second, an extraction method with CXE as the extraction phase was optimized using a Box Behnken design, giving optimal conditions of 40 °C, 9.3 MPa, and 0.31 molar fraction of CO2 in ethanol. Third, the developed method was compared with a supercritical fluid extraction (SFE) method and a conventional solid liquid extraction (SLE) method, showing that CXE enables faster and more efficient extraction than both SFE and SLE. In fact, calculations based on Peleg's equation showed that the initial extraction rate of the new method is up to 10 times faster than SFE when using the highest flow rate tested, 3 mL/min. It was also discovered that it is crucial to cool the makeup solvent in the collection system for efficient analyte collection, at least in modern SFE equipment where pressure is regulated by a backpressure regulator. The use of CXE and pertinently also other CO2-expanded liquids in sample preparation shows a great potential in terms of increasing the extraction rate without elevating the temperature.
Anal Chem. 2016 Apr;88(8):4336-45.
PMID: 27002237 [PubMed - as supplied by publisher]
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| 59. |
Development and optimization of boswellic acid-loaded proniosomal gel.
Mehta M, Dureja H, Garg M
CONTEXT: Boswellic acids (BAs) are isolated from oleo gum of Boswellia serrata and are mainly used as potential anti-inflammatory, hypolipidemic, immunomodulatory, and antitumor agents. Pharmacokinetic investigations of BAs uncover its poor bioavailability through digestive system thus creates a need for improved therapeutic responses which can possibly be achieved by developing formulations through novel delivery system.
OBJECTIVE: Present study was conducted to design topical BA-loaded proniosomal gel for the management of inflammatory disorders with enhanced bioavailability.
MATERIALS AND METHODS: Nonionic surfactant vesicles were prepared using the coacervation phase separation method. A central composite design was employed to statistically optimize formulation variables using Design-Expert software. Three independent variables were evaluated: amount of surfactant (X), amount of soya lecithin (X), and amount of cholesterol (X). The encapsulation efficiency percentage (Y) and particle size (Y) were selected as dependent variables.
RESULTS AND DISCUSSION: The optimum formulation (F10) displayed spherical bi-layered vesicles under transmission electron microscopy with optimum particle size of 707.9 nm and high entrapment efficiency as 98.52%. In vitro skin permeation study demonstrated the most sustained release of 84.83 ± 0.153 mg/cm in 24 h. Anti-inflammatory activity of the gel showed a significant (p < 0.001) higher percentage inhibition as compared to the marketed gel at the same dose.
CONCLUSION: The present study exhibited that BA-loaded proniosomal gel was better in terms of absorption, bioavailability, and release kinetics.
Drug Deliv. 2016 Oct;23(8):3072-3081.
PMID: 26953869 [PubMed - indexed for MEDLINE]
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| 60. |
Extraction and Characterization of Boswellia Serrata Gum as Pharmaceutical Excipient.
Panta S, Malviya R, Sharma P
BACKGROUND: This manuscript deals with the purification and characterization of Boswellia serrata gum as a suspending agent. The Boswellia serrata gum was purchased as crude material, purified and further characterized in terms of organoleptic properties and further micromeritic studies were carried out to characterize the polymer as a pharmaceutical excipient. The suspending properties of the polymer were also evaluated. The results showed that the extracted gum possesses optimum organoleptic as well as micromeritic and suspending properties.
OBJECTIVES: To characterize Boswellia serrata gum as a natural excipient.
MATERIAL AND METHODS: Boswellia serrata gum, paracetamol, distilled water.
RESULTS: The results showed that the extracted gum possesses optimum organoleptic as well as micromeritic and suspending properties.
CONCLUSIONS: It is concluded from the research work that the gum extracted from Boswellia serrata shows the presence of carbohydrates after chemical tests. All the organoleptic properties evaluated were found to be acceptable. The pH was found to be slightly acidic. Swelling Index reveals that the gum swells well in water. Total ash value was within the limits. The values of angle of repose and Carr's Index of powdered gum powder showed that the flow property was good. IR spectra confirmed the presence of alcohol, amines, ketones, anhydrides and aromatic rings. The suspending properties of Boswellia serrata gum were found to be higher as compared to gum acacia while the flow rate of Boswellia serrata gum (1% suspension) was less than gum acacia (1% suspension). The viscosity measurement of both Boswellia serrata gum suspension and gum acacia suspension showed approximately similar results.
Polim Med. 2015;45(1):25-30.
PMID: 26630726 [PubMed - indexed for MEDLINE]
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| 61. |
Bioavailability enhancement of a BCS IV compound via an amorphous combination product containing ritonavir.
Miller DA, Keen JM, Brough C, Ellenberger DJ, Cisneros M, Williams RO, McGinity JW
OBJECTIVES: To evaluate the effect of ritonavir (RTV) co-administration on the bioavailability of an amorphous dispersion of acetyl-11-keto-beta-boswellic acid (AKBA) and to develop a pharmaceutically acceptable AKBA-RTV combination tablet.
METHODS: A pharmacokinetic (PK) study in rats was conducted to evaluate the influence of RTV co-administration on the oral bioavailability of an AKBA amorphous dispersion. KinetiSol was utilized to enable production of an improved RTV formulation that facilitated the development of an AKBA-RTV combination tablet. Following in-vitro characterization, the PK performance of the tablets was evaluated in male beagles.
KEY FINDINGS: Co-administration of RTV increased oral absorption of AKBA by about fourfold over the AKBA dispersion alone and approximately 24-fold over the pure compound. The improved RTV amorphous dispersion exhibited similar purity and neutral-phase dissolution to Norvir. The AKBA-RTV combination tablets yielded a substantial increase in AKBA's bioavailability in dogs.
CONCLUSIONS: Oral absorption of AKBA is substantially limited by intestinal CYP3A activity and poor aqueous solubility. Consequently, AKBA's oral bioavailability is maximized by administration from a supersaturating formulation in conjunction with a CYP3A inhibitor. The AKBA-RTV combination tablet presented herein represents a breakthrough in the oral delivery of the compound facilitating future use as a drug therapy for broad spectrum cancer treatment.
J Pharm Pharmacol. 2016 May;68(5):678-91.
PMID: 26454138 [PubMed - indexed for MEDLINE]
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| 62. |
Combination of Anti-Diabetic Drug Metformin and Boswellic Acid Nanoparticles: A Novel Strategy for Pancreatic Cancer Therapy.
Snima KS, Nair RS, Nair SV, Kamath CR, Lakshmanan VK
Pancreatic cancer has an infaust prognosis and is the fourth common cause of cancer related death in India. It is highly resistant to conventional treatment modalities such as chemotherapy, radiation therapy and surgery. The association of pancreatic cancer and diabetes mellitus is explored in our study. Pancreatic cancer is more likely to occur in people who have diabetes than people devoid of it, which is supported by the observation that hyperglycaemia occurs at an early stage of pancreatic cancer and is indeed a risk factor. In the present study, we have demonstrated a synergistic relationship between metformin and boswellic acid nanoparticles with varying doses of boswellic acid nanoparticles and constant metformin (20 mM). The effect revealed increased synergism between metformin and boswellic acid nanoparticles through the inhibition of cell proliferation with an effect of 80% for the combination with 0.3 mg/mL and 0.4 mg/mL and a constant concentration of metformin. We examined the effect of combination on cell migration which revealed time dependent inhibitory effect on pancreatic cell line (MiaPaCa-2). Also, we found that the combinatorial approach significantly decreased colony formation and exhibited high rate of induction of apoptosis through DNA fragmentation in pancreatic cancer cells. In-vitro hemolysis confirmed the hemocompatibility of the combination therapy with metformin and boswellic acid nanoparticles. Flow cytometry based apoptosis assay and Caspase mediated apoptosis proved apoptosis mediated cell death. Further, the cells were analysed with mitochondrial membrane potential kit which revealed depolarization of mitochondrial membrane potential due to apoptosis after treatment with drug combination. Hence, the combination approach proved to be a promising therapy towards pancreatic cancer.
J Biomed Nanotechnol. 2015 Jan;11(1):93-104.
PMID: 26301303 [PubMed - indexed for MEDLINE]
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| 63. |
Enhanced Neuroprotection of Acetyl-11-Keto-β-Boswellic Acid (AKBA)-Loaded O-Carboxymethyl Chitosan Nanoparticles Through Antioxidant and Anti-Inflammatory Pathways.
Ding Y, Qiao Y, Wang M, Zhang H, Li L, Zhang Y, Ge J, Song Y, Li Y, Wen A
Acetyl-11-keto-β-boswellic acid (AKBA), a main active constituent from Boswellia serrata resin, is a novel candidate for therapy of cerebral ischemia-reperfusion (I/R) injury. Nevertheless, its poor solubility in aqueous solvent, bioavailability, and rapid clearance limit its curative efficacy. To enhance its potency, in our study, AKBA-loaded o-carboxymethyl chitosan nanoparticle (AKBA-NP) delivery system was synthesized. The transmission electron microscopy and transmission electron microscope images of AKBA-NPs suggested that particle size was 132 ± 18 nm, and particles were spherical in shape with smooth morphology. In pharmacokinetics study, AKBA-NPs apparently increases the area under the curve of plasma concentration-time and prolonged half-life compared with AKBA. The tissue distribution study confirmed that AKBA-NPs had a better brain delivery efficacy in comparison with AKBA. The results from our pharmacodynamic studies showed that AKBA-NPs possess better neuroprotection compared with AKBA in primary neurons with oxygen-glucose deprivation (OGD) model and in animals with middle cerebral artery occlusion (MCAO) model. Additionally, AKBA-NPs modulate antioxidant and anti-inflammatory pathways more effectively than AKBA by increasing nuclear erythroid 2-related factor 2 and heme oxygenase-1 expression, and by decreasing nuclear factor-kappa B and 5-lipoxygenase expression. Collectively, our results suggest that AKBA-NPs serve as a potent delivery vehicle for AKBA in cerebral ischemic therapy.
Mol Neurobiol. 2016 Aug;53(6):3842-3853.
PMID: 26162321 [PubMed - indexed for MEDLINE]
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| 64. |
Comparative studies of pharmacokinetics and anticoagulatory effect in rats after oral administration of Frankincense and its processed products.
Pan YN, Liang XX, Niu LY, Wang YN, Tong X, Hua HM, Zheng J, Meng DY, Liu XQ
ETHNOPHARMACOLOGICAL RELEVANCE: Frankincense (FRA), Ruxiang, is the resin of Boswellia carterii Birdw and Boswellia bhaw-dajiana Birdw which has been used for centuries as formulas to improve the circulation and to relieve pain against carbuncles. Stir-fried Frankincense (SFF) and vinegar processed Frankincense (VPF) are two major processed Frankincense, and the processing procedures reportedly enhance the curative efficacy or reduce the side effects of FRA. This paper describes the comparisons in plasma pharmacokinetic behaviors of 11-keto-β-boswellic acid (KBA) and 3-acetyl-11-keto-β-boswellic acid (AKBA) in FRA and its processed products, and their effects on coagulation factors and blood clotting tetrachoric, using an acute cold blood-stasis animal model after oral administration of FRA, SFF, and VPF.
MATERIALS AND METHODS: For pharmacokinetic study, Sprague-Dawley (SD) rats were randomly divided into three groups, including group FRA, group SFF and group VPF. And the plasma samples were analyzed by HPLC. For study of anticoagulatory effect, SD rats were randomly divided into six groups, including control, acute cold blood-stasis model, Fu-fang-dan-shen tablet- (0.75g/kg), FRA-, SFF-, and VPF-treated (2.7g/kg) groups, respectively. The serum contents of thrombin-antithrombin complex (TAT), D-dimer (D-D), and prostacyclin (PGI2) of each group were measured by ELISA. The values of prothrombin time (PT), thrombin time (TT), activated partial thromboplastin time (APTT) and fibrinogen (FIB) were also assessed by hematology analyzer.
RESULTS: Significantly increased levels of Cmax, AUC, T1/2, and MRT were found in rats treated with the processed products. In addition, decreased levels of D-D and TAT and increased contents of PGI2 were observed in rats given FRA and its processed products, compared with that of the model group. Moreover, VPF improved anticoagulation more than SFF in the animals.
CONCLUSIONS: The observed improvement of anticoagulation by processed FRA may result from the increased absorption and bioavailability of triterpenoids.
J Ethnopharmacol. 2015 Aug;172():118-23.
PMID: 26117531 [PubMed - indexed for MEDLINE]
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| 65. |
Gastroretentive Matrix Tablets of Boswellia Oleogum Resin: Preparation, Optimization, In Vitro Evaluation, and Cytoprotective Effect on Indomethacin-Induced Gastric Ulcer in Rabbits.
Yusif RM, Abu Hashim II, Mohamed EA, Badria FA
Currently available anti-ulcer drugs suffer from serious side effects which limited their uses and prompted the need to search for a safe and efficient new anti-ulcer agent. Boswellia gum resin (BR) emerged as a safe, efficient, natural, and economic potential cytoprotective agent. Thus, it is of medical importance to develop gastroretentive (GR) formulations of BR to enhance its bioavailability and anti-ulcer efficacy. Early attempts involved the use of organic solvents and non-applicability to large-scale production. In this study, different tablet formulations were prepared by simple direct compression combining floating and bioadhesion mechanisms employing hydroxypropyl methylcellulose (HPMC), sodium carboxymethyl cellulose (SCMC), pectin (PC), and/or carbopol (CP) as bioadhesive polymers and sodium bicarbonate (SB) as a gas former. The prepared tablets were subjected for assessment of swelling, floating, bioadhesion, and drug release in 0.1 N HCl. The optimized GR formulation was examined for its protective effect on the gastric ulcer induced by indomethacin in albino rabbits compared with lactose tablets. The obtained results disclosed that swelling, floating, bioadhesion, and drug release of the GR tablets of BR depend mainly on the nature of the matrix and the ratio of polymer combinations. Moreover, a combination of SCMC-CP in a ratio of 2:1 (SCP21) exhibited desirable floating, bioadhesion, swelling, and extended drug release. Also, a 6-h pretreatment with SCP21 tablets decreased the severity of inflammation and number of bleeding spots among ulcer-induced rabbits in comparison to those treated with lactose tablets.
AAPS PharmSciTech. 2016 Apr;17(2):328-38.
PMID: 26092303 [PubMed - indexed for MEDLINE]
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| 66. |
Boswellia carterii liquisolid systems with promoted anti-inflammatory activity.
Mostafa DM, Ammar NM, Abd El-Alim SH, Kassem AA, Hussein RA, Awad G, El-Awdan SA
(BC) Birdwood oleogum resin is an ancient remedy of inflammation processes known since Ancient Egyptian time. Of boswellic acids, 3-acetyl-11-keto-β-boswellic acid (AKBA) is the most potent anti-inflammatory active principle. Liquisolid systems of the biologically active fraction of BC oleogum resin were prepared for improving dissolution properties using low dose oral delivery to achieve enhanced anti-inflammatory activity, in comparison with the standard oral anti-inflammatory; Indomethacin. AKBA was assayed, employing an accurate and sensitive HPLC method. Detection was carried out at 210 nm using UV/Vis detector. A solubility study for the bioactive fraction was conducted. Microcrystalline cellulose and Aeroperl®300 Pharma were used as carrier and coating materials. Angle of slide, liquid load factor and Carr's flow index were estimated. Six systems were prepared using polyethylene glycol 400, solvent and two drug loading concentrations; 20 and 40 %. For each concentration, three carrier: coat ratios were dispensed; 20:1, 10:1, and 5:1. Dissolution study was performed and two systems were selected for characterization and in vivo evaluation by investigating upper GIT ulcerogenic effect and anti-inflammatory efficacy in rats. Results indicate absence of ulcers and significantly higher and prolonged anti-inflammatory efficacy for formulations F1 and F2, with carrier: coat ratio, 5:1 and drug loads of 20 and 40 %, respectively, compared with standard oral indomethacin. We conclude higher efficacy of BC bioactive fraction liquisolids compared with Indomethacin with greater safety on GIT, longer duration of action and hence better patient compliance.
Curr Drug Deliv. 2015;12(4):454-63.
PMID: 25895614 [PubMed - indexed for MEDLINE]
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| 67. |
Development and optimisation of 3-Acetyl-11-keto-β-boswellic acid loaded poly-lactic-co-glycolic acid-nanoparticles with enhanced oral bioavailability and in-vivo anti-inflammatory activity in rats.
Bairwa K, Jachak SM
OBJECTIVES: 3-Acetyl-11-keto-β-boswellic acid (AKBA) is a potent anti-inflammatory compound of Boswellia serrata. However, anti-inflammatory activity of AKBA is impeded by poor oral bioavailability due to its poor aqueous solubility. In this context, we aimed to develop poly lactic-co-glycolic acid (PLGA)-based nanoparticle formulation of AKBA (AKBA-NPs) in order to improve its oral bioavailability and in-vivo anti-inflammatory activity in rats.
METHODS: AKBA-NPs were prepared and characterised by analysing particle size and zeta potential using zeta sizer, surface morphology by scanning electron microscopy and transmission electron microscopy, and physical property using differential scanning calorimetry and X-ray diffraction techniques. The optimised nanoparticles were evaluated for in-vitro drug release and oral bioavailability studies, and in-vivo anti-inflammatory activity by carrageenan-induced rat paw oedema method.
KEY FINDINGS: The optimised AKBA-NPs showed the particle size of 179.6 nm with 0.276 polydispersity index and entrapment efficiency of 82.5%. AKBA-NPs showed increased in-vivo anti-inflammatory activity as compared with AKBA. Bioavailability study revealed about six times higher peak plasma concentration of AKBA in AKBA-NPs. Moreover, t1/2 and total area under the curve of AKBA were also enhanced by two and ninefold, respectively, in AKBA-NPs as compared with corresponding AKBA.
CONCLUSIONS: The promising results of improved oral bioavailability and in-vivo anti-inflammatory activity of AKBA suggested the successful nanoparticle formulation of AKBA.
J Pharm Pharmacol. 2015 Sep;67(9):1188-97.
PMID: 25851251 [PubMed - indexed for MEDLINE]
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| 68. |
Boswellia gum resin/chitosan polymer composites: Controlled delivery vehicles for aceclofenac.
Jana S, Laha B, Maiti S
This study was undertaken to evaluate the effect of Boswellia gum resin on the properties of glutaraldehyde (GA) crosslinked chitosan polymer composites and their potential as oral delivery vehicles for a non-steroidal anti-inflammatory drug, aceclofenac. The incorporation of resinous material caused a significant improvement in drug entrapment efficiency (∼40%) of the polymer composites. Fourier transform infrared (FTIR) spectroscopic analysis confirmed the formation of chitosan-gum resin composites and did not show any evidence of drug-polymer chemical interaction. Field emission scanning electron microscopy (FE-SEM) suggested the formation of particulate polymer composites up to chitosan:gum resin mass ratio of 1:3. Only 8-17% drug was released into HCl solution (pH 1.2) in 2h. The drug release rate of polymer composites was faster in phosphate buffer solution (pH 6.8). The composites released ∼60-68% drug load in 7h. In same duration, the drug release rate suddenly boosted up to 92% as the concentration of gum resin in the composites was raised to 80%. The drug release mechanism deviated from non-Fickian to case-II type with increasing resin concentration in the composites. Hence, GA-treated Boswellia resin-chitosan composites could be considered as alternative vehicles for oral delivery of aceclofenac.
Int J Biol Macromol. 2015;77():303-6.
PMID: 25825076 [PubMed - indexed for MEDLINE]
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| 69. |
Prospects of boswellic acids as potential pharmaceutics.
Du Z, Liu Z, Ning Z, Liu Y, Song Z, Wang C, Lu A
Boswellic acids have long been considered the main bioactive components of frankincense, and many studies in vitro and in animals as well as several clinical studies have confirmed their various bioactivities. In particular, a large number of mechanistic studies have confirmed their anti-inflammatory and antitumor activities. However, not every boswellic acid exhibits a satisfactory pharmacological performance, which depends on the chemical structure and functional groups of the acid. To enhance the pharmacological values of boswellic acids, derivatization has been specifically applied with the aim of discovering more active derivatives of BAs. In addition, the preliminary pharmacokinetic studies of these compounds using various standard methods show their poor bioavailability in humans and rodents, which has led to questions of their pharmacological relevance and potentially limits their use in clinical practice and pharmaceutical development. To improve these effects, some approaches have shown some improvements in effectiveness, and the new formula compatibility approach is considered a very reasonable method for improving the bioavailability of boswellic acids.
Planta Med. 2015 Mar;81(4):259-71.
PMID: 25714728 [PubMed - indexed for MEDLINE]
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| 70. |
A cosmeceutical formulation based on boswellic acids for the treatment of erythematous eczema and psoriasis.
Togni S, Maramaldi G, Di Pierro F, Biondi M
BACKGROUND: Boswellic acids (BAs) show anti-inflammatory properties in a variety of inflammatory diseases, including rheumatoid arthritis, osteoarthritis, and asthma. A topical administration route is currently used to deliver active compounds in psoriatic and eczematous patients. In this double-blind study we compare a novel BA formulation (containing Bosexil(®), INCI [International Nomenclature of Cosmetic Ingredients]: lecithin, Boswellia serrata resin extract) with a placebo formulation. A third arm of the trial received a formulation of Vaccinium myrtillus seed oil, previously demonstrated as an effective local treatment for psoriatic lesions.
METHODS: Patients with psoriasis or erythematous eczema were randomly assigned, in a 1:1:1 ratio, to Bosexil(®), V. myrtillus seed oil, or placebo. In order to evaluate the effects of treatment, the changes of scales and erythema from diagnosis to the end of treatment were scored in psoriatic patients, while changes in itch and erythema were analyzed for erythematous eczema patients. Psoriasis Area Severity Index and Eczema Area and Severity Index scores were also calculated.
RESULTS: In patients with psoriasis, scales and erythema improved both with Bosexil(®) and the V. myrtillus seed oil treatment in comparison with placebo. In particular, the treatment with Bosexil(®) formulation improved scales (70% of cases) and erythema (50% of cases) without any case of worsening. In patients with eczema, the administration of placebo did not result in any improvement in 90% of cases, and in the remaining 10% worsened both itch and erythema. Bosexil(®) formulation improved both itch (60% of cases) and erythema (60% of cases) without any case of worsening. V. myrtillus seed oil improved itch and erythema in 66.7% and 77.8% of patients, respectively.
CONCLUSION: A topical formulation of Bosexil(®) may be promising for the treatment of psoriasis and erythematous eczema. Long-term studies are recommended to evaluate the adherence to this topical treatment and its clinical benefits in real life.
Clin Cosmet Investig Dermatol. 2014;7():321-7.
PMID: 25419153 [PubMed - as supplied by publisher]
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| 71. |
Transdermal microemulsions of Boswellia carterii Bird: formulation, characterization and in vivo evaluation of anti-inflammatory activity.
Mostafa DM, Ammar NM, Basha M, Hussein RA, El Awdan S, Awad G
CONTEXT: Boswellia species are trees (family: Bruseraceae) found in India, Northern Africa and the Middle East.
OBJECTIVE: This study aims at formulating low dose biologically active fraction from the oleogum resin of Boswellia carterii (BC) in transdermal (TD) microemulsions (MEs) to acquire promoted anti-inflammatory efficacy.
MATERIALS AND METHODS: The bioactive fraction of the oleogum resin of BC was tested for solubility in different components. The most efficient were selected for constructing phase diagrams for ME preparation. The bioactive fraction was assayed by high performance liquid chromatography for 3-acetyl-11-keto-β-boswellic acid (AKBA), at 210 nm. The bioactive fraction was incorporated in 6 MEs. ME systems were evaluated for drug content and optimized systems were tested for characterization, permeation, skin irritancy and in vivo evaluation of anti-inflammatory activity.
RESULTS AND DISCUSSION: Two systems were selected; ME1 and ME4 composed of Tween 80: PEG 400 at 1:1 and 2:1 ratio, with oil content 7.78 and 17.5%, respectively. The systems showed high encapsulation efficiency >83%, small droplet size <100 nm, and suitable pH for topical application. Permeation parameters for ME1 were higher compared to ME4. Both MEs were non irritant. ME1 showed significantly higher anti-inflammatory activity versus the standard TD anti-inflammatory piroxicam.
CONCLUSIONS: Optimized TD BC MEs could be used as a safe, effective and long acting alternative to oral anti-inflammatories, providing higher and prolonged efficacy and better patient compliance.
Drug Deliv. 2015;22(6):748-56.
PMID: 24725029 [PubMed - indexed for MEDLINE]
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| 72. |
Investigating permeability related hurdles in oral delivery of 11-keto-β-boswellic acid.
Bagul P, Khomane KS, Bansal AK
11-Keto-β-boswellic acid (KBA) is an important and potent boswellic acids responsible for anti-inflammatory action of Boswellia extract. However, its pharmaceutical development has been severely limited by its poor oral bioavailability. The present work aims to investigate the permeability related hurdles in oral delivery of KBA. Gastrointestinal stability, gastrointestinal metabolism, adsorption-desorption kinetics and Caco-2 permeability studies have been carried out. KBA was found poorly permeable with Papp value of 2.85 ± 0.14 × 10(-6)cm/s. Higher absorptive transport indicated role of carrier mediated transport. Moreover, KBA transport across monolayer showed saturation kinetics at higher concentrations. KBA exposed to 1α,25-(OH)2 vitamin D3 treated cell monolayer showed the lowest Papp value of 2.01×10(-6) ± 0.02 × 10(-6)cm/s indicating role of CYP3A4 mediated metabolism during KBA transport. Metabolic stability experiments in jejunum S9 fractions further confirmed this. KBA was found unstable in simulated gastrointestinal fluids and also got accumulated in the enterocytes. Sorption and desorption kinetic studies using Caco-2 cells further confirmed accumulation of KBA inside the enterocytes. KBA also showed pH dependent permeability with higher flux at gradient pH condition of pH 6.5 at apical and 7.4 at basolateral. Taken as whole, the major permeability related hurdles that hampered oral bioavailability of KBA included its gastrointestinal instability, CYP3A4 mediated intestinal metabolism, accumulation within the enterocytes and saturable kinetics. The present investigation may help in designing novel drug delivery system for KBA.
Int J Pharm. 2014 Apr;464(1-2):104-10.
PMID: 24463070 [PubMed - indexed for MEDLINE]
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| 73. |
Preparation of amorphous solid dispersions by rotary evaporation and KinetiSol Dispersing: approaches to enhance solubility of a poorly water-soluble gum extract.
Bennett RC, Brough C, Miller DA, O'Donnell KP, Keen JM, Hughey JR, Williams RO, McGinity JW
Acetyl-11-keto-β-boswellic acid (AKBA), a gum resin extract, possesses poor water-solubility that limits bioavailability and a high melting point making it difficult to successfully process into solid dispersions by fusion methods. The purpose of this study was to investigate solvent and thermal processing techniques for the preparation of amorphous solid dispersions (ASDs) exhibiting enhanced solubility, dissolution rates and bioavailability. Solid dispersions were successfully produced by rotary evaporation (RE) and KinetiSol® Dispersing (KSD). Solid state and chemical characterization revealed that ASD with good potency and purity were produced by both RE and KSD. Results of the RE studies demonstrated that AQOAT®-LF, AQOAT®-MF, Eudragit® L100-55 and Soluplus with the incorporation of dioctyl sulfosuccinate sodium provided substantial solubility enhancement. Non-sink dissolution analysis showed enhanced dissolution properties for KSD-processed solid dispersions in comparison to RE-processed solid dispersions. Variances in release performance were identified when different particle size fractions of KSD samples were analyzed. Selected RE samples varying in particle surface morphologies were placed under storage and exhibited crystalline growth following solid-state stability analysis at 12 months in comparison to stored KSD samples confirming amorphous instability for RE products. In vivo analysis of KSD-processed solid dispersions revealed significantly enhanced AKBA absorption in comparison to the neat, active substance.
Drug Dev Ind Pharm. 2015 Mar;41(3):382-97.
PMID: 24329130 [PubMed - indexed for MEDLINE]
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| 74. |
Preparation and characterization of solid lipid nanoparticles loaded with frankincense and myrrh oil.
Shi F, Zhao JH, Liu Y, Wang Z, Zhang YT, Feng NP
The aim of the present study was to prepare solid lipid nanoparticles (SLNs) for the oral delivery of frankincense and myrrh essential oils (FMO). Aqueous dispersions of SLNs were successfully prepared by a high-pressure homogenization method using Compritol 888 ATO as the solid lipid and soybean lecithin and Tween 80 as the surfactants. The properties of the SLNs such as particle size, zeta potential (ZP), and drug encapsulation efficiency (EE) were investigated. The morphology of SLNs was observed by transmission electron microscopy (TEM). The crystallinity of the formulation was analyzed by differential scanning calorimetry (DSC) and X-ray diffraction (XRD). In addition, drug evaporation release and antitumor activity were also studied. Round SLNs with a mean size of 113.3 ± 3.6 nm, a ZP of -16.8 ± 0.4 mV, and an EE of 80.60% ± 1.11% were obtained. DSC and XRD measurements revealed that less ordered structures were formed in the inner cores of the SLN particles. Evaporation loss of the active components in FMO could be reduced in the SLNs. Furthermore, the SLN formulation increased the antitumor efficacy of FMO in H22-bearing Kunming mice. Hence, the presented SLNs can be used as drug carriers for hydrophobic oil drugs extracted from traditional Chinese medicines.
Int J Nanomedicine. 2012;7():2033-43.
PMID: 22619540 [PubMed - indexed for MEDLINE]
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| 75. |
Pharmacology of an extract of salai guggal ex-Boswellia serrata, a new non-steroidal anti-inflammatory agent.
Singh GB, Atal CK
Pharmacological evaluation of alcoholic extract of salai guggal (AESG) has been carried out in experimental animals. AESG displayed marked anti-inflammatory activity in carrageenan induced oedema in rats and mice and dextran oedema in rats. It was equally effective in adrenalectomised rats. In formaldehyde and adjuvant arthritis, AESG produced prominent anti-arthritic activity but no significant effect was observed in cotton pellet-induced granuloma test. It inhibited inflammation induced increase in serum transaminase levels and leucocyte counts but lacked any analgesic or anti-pyretic effects. The gestation period or parturition time in pregnant rats or onset time of castor oil-induced diarrhoea was unaffected by AESG and no significant effect was seen on cardiovascular, respiratory and central nervous system functions. No ulcerogenic effects were found in the rat stomach. The oral and intraperitoneal LD50 was greater than 2 g/Kg in mice and rats.
Agents Actions. 1986 Jun;18(3-4):407-12.
PMID: 3751752 [PubMed - indexed for MEDLINE]
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