Posted by admin on Jan 31, 2019 in |
We here in the report the investigation of the antifungal activity of various solvent extracts obtained from a marine brown alga, Lobophora variegata against three fungal dermatophytes, namely Candida albicans, Candida tropicalis, Trichophyton mentagrophytes and a nondermatophyte Aspergillus flavus using disc diffusion method. Among the solvent extracts tested in the investigation, only the methanol extract of the L. variegata exhibited better antifungal activity against all the fungi and chloroform extract was able to elicit activity against C. albicans and T. mentagarophytes. On the other hand, the extract of the L. variegata obtained from ethyl acetate was active against C. albicans only. In contrast to the methanol and chloroform extracts, the aqueous and hexane extracts of the L. variegata were found to be least effective and showed no observable activity against any of the test fungi. The investigation demonstrated that the methanol extract of brown alga L. variegata is more effective on dermatophyte...
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Posted by admin on Jan 31, 2019 in |
The study was carried out to evaluate anti-inflammatory activity of alcoholic extract of roots of Lawsonia Inermis (LILAC). In-vitro anti-inflammatory activity was evaluated by Cyclooxygenase inhibitory assay wherein the LIALC showed a dose-dependent inhibition of both the enzymes with IC50 values of 58.2 μg/ml for COX-1 and 7.38 μg/ml for COX-2. In RBC membrane stabilization activity, LILAC at the concentration of 100 µg/ml and 200µg/ml exhibited membrane stabilizing activity. Acute oral toxicity of extract was determined by OECD 423 guidelines wherein mortality was not observed when the extract was administered orally up to 2000 mg/kg. Carrageenan-induced paw edema model evaluated in-vivo anti-inflammatory activity; Paw edema was induced by injecting 0.1 ml of 1% w/v carrageenan into the subplantar tissues of the left hind paw of each rat. LILAC at all the three doses, 200, 300 and 400 mg/kg, showed maximum inhibition of 31.8, 40.9 and 50.8% respectively at 180 min. In Cotton pellet-induced granuloma model, Sterile, weighed, cotton pellets (10 ± 1 mg) were implanted subcutaneously in the groin...
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Posted by admin on Jan 31, 2019 in |
The several spectrophotometric and HPLC methods have been reported for determination of Nebivolol and Valsartan individually or in combination with other drugs in pharmaceutical dosage forms. Hence, in the present study, a new, sensitive, suitable and cost-effective Reversed-Phase High-Performance Liquid Chromatography method was developed and validated for the determination of Nebivolol and Valsartan in bulk and tablet formulation. In RP-HPLC method, the analyte was resolved by using a gradient system, methanol and water OPA 0.1% (70:30 v/v) pH 3.5 was used as mobile phase, at a flow rate of 0.7 ml/min, on HPLC system containing UV- detector with Workstation Software and Greece C18 column (4.6 × 250 mm; 5μm). The detection was carried out at 274 nm. The retention time was found to be 5.0500 min and 9.7167 min for Nebivolol hydrochloride and Valsartan respectively. The method gave the good resolution and suitable retention time. The results of the analysis in the method were validated regarding accuracy, precision, specificity, linearity, limit of detection, limit of quantification and robustness. A...
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Posted by admin on Jan 31, 2019 in |
Chytranthus macrobotrys (Sapindaceae) is one of the notable African medicinal plants with traditional history but lack scientific data. This report was aimed to evaluate C. macrobotrys seed (CMS) methanol extract for its phytochemical composition, antimicrobial activity, α-glucosidase, and α-amylase inhibitory activities. Methanolic extract of C. macrobotrys seed was investigated for its chemical composition, antimicrobial activity, α-glucosidase, and α-amylase inhibitory activities. The results revealed the presence of flavonoid (18.61 ± 1.88 mg/100g), phenol (28.71 ± 2.95 mg/100g), tannin (17.29 ± 1.84 mg/100g), terpene (587.07 ± 3.63 mg/100g), sterol (111.54 ± 3.85 mg/100g) and saponin (761.78 ± 1.35 mg/100g). The extract using agar diffusion method showed antimicrobial activity against Staphylococcus aureus, Proteus vulgaris, Pseudomonas aureuginosa, Streptococcus pneumonia, Bacillus cereus, and Micrococcus luteus with a diameter of inhibition zones from 10-20 mm. A weak antimicrobial activity was observed against Escherichia coli and Shigella sp. while no activity was observed against Klebsiella pneumonia and Salmonella typhi. The CMS showed α-glucosidase and α-amylase inhibitory activity at the concentration range of 10-100 µg/ml. The highest...
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Posted by admin on Jan 31, 2019 in |
Background: This study was carried out to investigate qualitative and quantitative phytochemical analysis and free radical scavenging activity of Boerhavia diffusa (root) and Crateva nurvala (bark) along with certain computational ADME (Absorption, Distribution, Metabolism, Excretion) parameters of compounds analyzed from Boerhavia diffusa (root) and Crateva nurvala (bark). Methods: The dried powder of plants were extracted with increasing polarity of solvent namely ethyl acetate, acetone, ethanol and distilled water by a three-step sequential extraction procedure. The chemical compositions of extracts were investigated using UV-Vis, FTIR and PerkinElmer Gas Chromatography-Mass Spectrometry. Ethanolic extract of Boerhavia diffusa and Crateva nurvala was evaluated in vitro for its ability to inhibit the major enzyme activities of GOX and LDH through spectrophotometrically and mode of inhibition were evaluated using Lineweaver-Burk plots while ADME parameters were derived from ADMET server admet SAR. Results: Among all extracts, ethanolic extracts showed the highest phenol, flavonoid, proanthocyanidins, and coumarin content. High DPPH free radical quenching activity was observed in ethanolic, ethyl acetate and acetone extracts of the plant which...
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