Posted by admin on Oct 1, 2014 in |
Flavonoid isolated from Mimosa pudica was evaluated for its radical scavenging and immunomodulatory activities in-vitro. Aim of this study is to isolate flavonoid from Mimosa pudica and to determine its antioxidant and immunomodulatory properties. Flavonoid was isolated from dried samples of Mimosa pudica using soxhlet extraction in 80% methanol and purified by column chromatography. Various tests were done for the presence of flavonoid, and the isolate was confirmed as flavonoid by Thin Layer Chromatography (TLC) and Fourier Transform Infrared (FT-IR) analysis. Antioxidant activity of the isolated flavonoid was evaluated using assays such as the 1, 1‑diphenyl‑2‑picryl‑hydrazil (DPPH) radical scavenging assay and hydroxyl radical scavenging assay. In-vitro assay of immunomodulatory activity of flavonoid isolated from Mimosa pudica was done by using lymphocytes isolated from a human blood sample. The isolated flavonoid exhibited a dose-dependent enhancement in activity in DPPH assay and hydroxyl radical scavenging assays. In DPPH assay 10μg of ascorbic acid, equivalent activity was shown by 30μg of isolated flavonoid. The isolate exhibited strong DPPH radical scavenging activity with...
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Posted by admin on Oct 1, 2014 in |
Onychomycosis representing about 30% of mycotic cutaneous infections is the fungal infection that affects the nails. Although not life-threatening, it adversely affects the psychology of the patient whose nails become yellow, discolored, brittle, and unsightly. It may also pose serious problems in immunocompromised individuals. The current market of products for the treatment of onychomycosis includes topical antifungal gels, creams, medicated nail lacquers, and oral antifungals in the form of tablets. Other techniques like nail etching, use of microneedles & mesoscissioning are being studied. The authors propose the formulation and evaluation of glycerogelatin for an effective transungual delivery. Glycerogelatin are semisolid dosage forms comprising of glycerine, gelatin, water and drug which upon heating to temperatures slightly above body temperature melt and can be applied over the affected area. These upon cooling harden, cover the area and release the drug. The authors propose the use of HPMC for an effective glycerogetin formulation. This research article is an attempt to bring into the limelight the potential of glycerogelatins for transungual drug...
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Posted by admin on Oct 1, 2014 in |
The present study was aimed to determine whether the methanol and aqueous extracts from the medicinal plant, Withania somnifera (root), could inhibit acetylcholinesterase (AChE) in scopolamine-induced Alzheimer’s rats. The rats were randomly divided into different groups of 5 each: normal control rats treated with saline; Scopolamine (2mg/Kg b.w. i.p.) – induced Alzheimer’s rats treated with saline; Scopolamine-induced Alzheimer’s rats post-treated with methanol extract of three different concentrations (100, 200 and 300mg/Kg b.w. oral); Scopolamine-induced Alzheimer’s rat post-treated with aqueous extract of three different concentrations (100, 200 and 300mg/Kg b.w. oral); and scopolamine-induced Alzheimer’s rat post-treated with donepezil, a reference control (5mg/Kg b.w. oral) for 10 successive days. Increased AChE activity and decreased Acetylcholine content were recorded in different brain regions in scopolamine-induced Alzheimer’s rats. Post-treatment with W. somnifera extracts caused recovery of the levels of AChE and acetylcholine (ACh) in a dose-dependent manner. These findings suggest that W. somnifera causes perceptible changes in the cholinergic system as one of the facets of its anti-alzheimeric...
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Posted by admin on Oct 1, 2014 in |
Lactobacillus rhamnosus plays an important role as probiotic often associated with beneficial health effects. Although copper and zinc are trace metals, they are toxic at high concentrations. In this paper, bioinformatic tools and molecular modeling approach was adopted to explore the structure of L. rhamnosus under copper sulfate and zinc chloride stress. The differentially expressed proteins under stress were Aspartate kinase, Mannose-6-phosphate isomerase, Glutamate dehydrogenase, 30 S ribosomal subunit S19, 50 S ribosomal subunit L4, Pyruvate oxidase, Thymidylate synthase, and ATP dependent Clp protease ATP binding subunit ClpL. The homology models for these proteins were developed by using Modeller 9.5v. The models were validated by using protein structure checking tools PROCHECK. These structures will provide a good foundation for functional analysis of L. rhamnosus proteins against toxic metal pollutant. Another three differentially expressed proteins were also elevated namely Acetyltransferase, Alkaline shock protein, Cell division initiation protein Div IVA. But these protein structures were not predicted because Query coverage, identity, and E-values were not...
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Posted by admin on Oct 1, 2014 in |
Ambroxol hydrochloride is a potent mucolytic agent capable of inducing bronchial secretions used in the treatment of respiratory disorders. The Sustained release matrix tablets containing 75 mg Ambroxol hydrochloride were developed using different drug: polymer ratios. Sustained release matrix tablets were prepared by wet granulation method. Granules were prepared and evaluated for loose bulk density, tapped bulk density, compressibility index and angle of repose, shows satisfactory results. The prepared tablets were further evaluated for uniformity of weight, hardness, friability, thickness, content uniformity, In-vitro dissolution, drug-excipients interactions, swelling index study also carried out. The FT-IR studies revealed that there was no chemical interaction between drug and excipients. In-vitro release studies were carried out using USP XXII type II (paddle method) dissolution apparatus at 50 rpm. The release data was fitted to various mathematical models such as, Higuchi, Korsmeyer-Peppas, First-order, and Zero order to evaluate the kinetics and mechanism of the drug release. Among all the formulations, F4 shows 99.15% better-controlled release at the end of 12 h. The drug release...
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