Posted by admin on Feb 28, 2017 in |
Objectives of study: To develop and validate new, rapid, selective, precise, accurate and economical, isocratic RP-HPLC and UV spectrophotometric method for simultaneous estimation of Dextromethorphan and Quinidine in bulk and in tablet formulations. Methods: A RP-HPLC was developed for the simultaneous estimation of Dextromethorphan and Quinidine on Phenomenex C-8 column with the mobile phase of methanol and phosphate buffer (pH 2.5) in the ratio 60:40 v/v at flow rate of 1ml/min and detection at 230nm was used for the study. In UV spectrometry, simultaneous equation method was based on measurement of absorbances at two selected wavelengths 278nm and 331nm for Dextromethorphan hydrobromide and Quinidine Sulfate respectively. Absorbance ratio method based on the measurement of absorbances at isobestic point and wavelength maxima of one drug, selected wavelengths were 278nm (λmax of DMH) and 289nm (isobestic point). The developed methods were validated and recovery studies were carried according to ICH guidelines. Results: The peaks of Dextromethorphan and Quinidine were found to be well resolved with retention time of 4.3min and 2.8min...
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Posted by admin on Feb 28, 2017 in |
Hepatoprotective activity of Polyherbal preparation against CCl4 ‑induced hepatic damage in rats was observed. The healthy control (normal), control, and standard drug Silymarin treated groups were also maintained for the comparison. The liver marker enzymes SGOT, SGPT, ALP and total Bilirubin were assessed in all the experimental groups. The changes in liver function parameters were significant in comparison to control group and the observed efficacy was comparable to standard drug. The efficacy of the polyherbal preparation was found to be dose dependent. From the present study it is evident that the Polyherbal preparation has no mortality in selected doses. Liver antioxidant markers were elevated significantly, while the serum and lipid parameters were maintained at normal levels compared to control groups. Histopathological examinations of the liver showed that extract and Silymarin have a protective role over the toxicity of paracetamol and carbon tetrachloride induced hepatotoxicity in rats. Hence Polyherbal preparation could be one of the best sources of natural hepatoprotective...
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Posted by admin on Feb 28, 2017 in |
The marine environment is a rich source of both biological and chemical diversity. This diversity has been the source of unique chemical compounds with potential for drug development. In recent years, a significant number of novel metabolites with potent pharmacological properties have been discovered from the marine organisms. Specifically, the Red Sea is a natural source of these bioactive compounds. The Red Sea is a rich source of marine organisms that contain bioactive substances with intriguing and unique structural features. Examples of marine organisms commonly found in the Red Sea are sponges, soft corals, and algae. Secondary metabolites obtained from Red Sea marine organisms have been reported to show various biological activities such as: cytotoxic, antiproliferative, antiviral and anti-inflammatory activities. This review emphasizes the bioactivity of marine natural products specifically those isolated from the Red Sea. The present article highlights the latest progress in both chemistry and biological activities of metabolites isolated from Red Sea organisms till year 2014, also it provides a perspective on future areas of research...
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Posted by admin on Feb 28, 2017 in |
An ethnobotanical study of medicinal plants was carried out in the region of Oued Tlelat. It was made in order to establish the catalog of medicinal plants and gather all information on the therapeutic uses practiced by the local population in the study area. The results have identified 59 species that are divided into 29 families of which three are the most dominant, especially Lamiaceae, Apiaceae, and Fabaceae. The most cited plants Thymus vulgaris, Menthaspicata and Verbena officinalis. The foliage is the most used part and most of the remedies are prepared as an infusion. In terms of treated diseases, respiratory diseases occupy first place with a rate of 31.74%. This study highlights the medicinal plants used in the treatment of different type’s diseases (Respiratory, metabolic disorders, neurological disorders, dermatological infections, genitourinary infections) by the population of the study area. The results are a valuable source of information and a database for research in the field of...
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Posted by admin on Feb 28, 2017 in |
The objective of the present study is optimization of telmisartan tablet formulation employing βCD, Primojel, and Tween 80 by 23 factorial design to achieve NLT 85% dissolution in 10 min. Eight telmisartan tablet formulations were prepared using selected combinations of the three factors as per 23 factorial design. Telmisartan tablets were prepared by direct compression method and were evaluated. Telmisartan tablet formulations Fb and Fbc disintegrated rapidly in 20 and 40 seconds and gave very rapid dissolution of telmisartan, 96.1% and 95.8% in 10 min respectively. The increasing order of dissolution rate (K1) observed with various formulations was Fc< F1< Fac< Fa< Fabc< Fab< Fbc< Fb. The polynomial equation describing the relationship between the response, percent drug dissolved in 10min (Y) and the levels of βCD (X1) , Primojel (X2) and Tween 80 (X3) based on the observed results is Y = 55.327 + 3.613(X1) + 35.072(X2) – 9.182(X1 X2) – 3.757(X3) – 3.317(X1 X3) + 2.06(X2 X3) + 1.765(X1 X2 X3). Based on the above equation, the formulation...
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