Posted by admin on May 1, 2012 in |
Mycotic infections of skin are caused by dermatophytes. Screening of plants for anti dermatophyte activity was carried out based on the literature search done. Native plants of Maharashtra (India) were screened for anti dermatophyte activity. Various plant parts from different regions were collected and then extracted with three different solvents viz. alcohol, hydro-alcohol and aqueous. The obtained extracts were subjected for anti dermatophyte activity using agar-well diffusion technique. Three different concentrations of extract were checked for activity. Two species of dermatophytes, viz. – Trichophyton and Microsporum were used in the screening assay. Out of the twenty-eight plants screened by agar diffusion method, seven were found to be active with different activity profile. Methanol extract was the most active extract. Pterospermum suberifolium, Trachyspermum ammi, Peltaphorum pterocarpum, Ixora coccinia, Persicaria glabra, Terminallia elliptica and Cicca acida showed activity at different concentrations against the two species of dermatophytes. The data obtained can be used for further studying the anti dermatophyte potential of active...
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Posted by admin on May 1, 2012 in |
The objective of present study is to evaluate the anti ulcer activity of methanolic extract of leaves of Aegle marmelos. The cause of ulceration in patients is mainly due to hypersecretion of gastric juice and pepsin. In traditional system of medicine a number of herbal preparations have been used for the treatment of peptic ulcers. The anti-ulcer activity of methanolic extract of Aegle marmelos leaves was investigated by aspirin plus pylorus ligation induced gastric ulcer in rats, Indomethacin induced ulcer in rats, water immersion stress test induced ulcer in rats. In aspirin plus pylorus ligation model, Aegle Marmelos at doses of 200 and 400 mg/kg produced significant reduction in gastric volume, free acidity and ulcer index compared to control. In Indomethacin and water immersion stress test induced ulcer models both doses (200mg/kg & 400mg/kg) of Aegle marmelos extract significantly reduced severity of ulceration. This present study indicates Aegle marmelos leaves extract have potential anti ulcer...
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Posted by admin on May 1, 2012 in |
A simple and sensitive spectroscopic method was developed for the estimation of Racecadotril in pharmaceutical dosage forms. This method is based on Racecadotril, showing absorbance at 231 nm in methanol. This method obeys Beers law in the concentration range of 8 to100 μg mL-1 respectively. The proposed method is precise, accurate and reproducible and can be extended to the analysis of Racecadotril in bulk and tablet formulations. The method was linear (r=0.9998) at concentrations ranging from 8 to 100 µg ml-1, precise (repeatability and intermediated precision), exact (method of standard addition), and Limit of detection µg ml-1 (0.088749). Limit of quantification µg ml-1 (0.268938) was found and the % recovery is found...
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Posted by admin on May 1, 2012 in |
Alzheimer’s disease (AD) is a progressive degenerative disease of the brain marked by gradual and irreversible declines in cognitive functions. Acetylcholinesterase plays a biological role in the termination of nerve impulse transmissions at cholinergic synapses by rapid hydrolysis of acetylcholine. The deficit levels of acetylcholine lead to poor nerve impulse transmission. Thus the cholinesterase inhibitors would reverse the deficit in acetylcholine levels and consequently reverse the memory impairments characteristic of the disease. In the present work, functionalized coumarin compounds and their derivatives were docked into active site of Acetylcholinesterase using the docking programs GOLD and GLIDE. The compounds were screened using High throughput screening, and further subjected to Induced Fit Docking studies. Further, the QSAR studies revealed the best structure activity relationship and 100% of human oral absorption. The inhibitor compounds also satisfied the PASS (Prediction of Activity Spectra for Substances) results of inhibiting the activity of acetylcholinesterase. The type of interaction they exhibit and the residues with which they interact convey that both the compounds are good inhibitors...
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Posted by admin on May 1, 2012 in |
The in vitro dissolution property of slightly water soluble Fenofibrate (FN) was improved by exploring the potential of Liquisolid system (LS). The in vitro release pattern of LS compacts and directly compressed tablets were studied using USP-II apparatus. Different LS compacts were prepared using a mathematical model to calculate the required quantities of powder and liquid ingredients to produce acceptably flowable and compressible admixture. Avicel PH 102, Aerosil 200 and Explotab were employed as carrier, coating material and disintegrants respectively for preparing LS compacts. The prepared LS compacts were evaluated for their flow properties such as bulk density, tapped density, angle of repose, Carr’s compressibility index and Hausner’s ratio. The interaction between drug and excipients in prepared LS compacts were studied by differential scanning calorimetry (DSC) and X- ray powder diffraction (XRPD). The drug release rates of LS compacts were distinctly higher as compared to directly compressed tablets, which show significant benefit of LS in increasing wetting properties and surface area of drug available for dissolution. The LS-1 of...
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