Posted by admin on Oct 1, 2012 in |
Antioxidants have important role in prevention and treatment of disorders and plants are considered as rich sources of radical scavenging compounds. Nowadays, many herbs are used in dried form which is possible to affect their antioxidant activity. In the present investigation, the effects of different drying methods on the antioxidant capacity and total phenolics content of some culinary plant species have been studied. Leaves of Mentha piperita, Mentha spicata, Thymus vulgaris and Anethum graveolense were dried in sun, shade, oven and microwave and extracted with methanol. Antioxidant activity of each extract was determined by DPPH free radicals and total phenolics content was measured by folin cio-calteus reagent. The results revealed that drying process reduced the antioxidant activity of Anethum graveolense whereas sun-drying and shade-drying increased the antioxidant activity of Mentha piperita, Mentha spicata and Thymus vulgaris (Lamiaceae). During sun-drying and shade-drying, total phenolics content increased for the three plants of Lamiaceae while oven- and microwave-drying reduced the phenolics content. Drying also declined the phenolics content of Anethum graveolense which...
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Posted by admin on Oct 1, 2012 in |
The objective of this study was to develop simple, precise, accurate, reproducible and economical vireodt’s method for simultaneous estimation of mesalamine (MSM) and prednisolone (PRD) in combined oral dosage form. The method involved measurement of absorbance at two wavelengths, 332nm and 246nm, λmax of MSM and PRD, respectively in phosphate buffer (pH 7.4) with dimethyl formamide (DMF) as cosolvent. The linearity was obtained in the concentration range of 5-50 µg/ml and 2-20 µg/ml for MSM and PRD, respectively. The average percent recovery of MSM and PRD was found to be 99.19+0.78% and 99.71+0.82%, respectively. The accuracy and precision were determined and recovery studies confirmed the accuracy of the developed method that was carried out following the International Conference on Harmonization (ICH) guidelines. The recovery study was carried out by standard addition method. The proposed method was found to be rapid, specific, precise, accurate, and reproducible and can be successfully applied for the routine analysis of MSM and PRD in pharmaceutical dosage...
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Posted by admin on Oct 1, 2012 in |
The course on “Herbal Medicines, Nutraceuticals and Dietary Supplements” has been implemented among the new courses within the 2007 curriculum of the Pharmacy Program, School of Food, Biochemical and Pharmaceutical Sciences at the Catholic University of Cuyo, located in San Juan Province, Argentina. The main objective of the course is to provide students with the necessary tools to acquire knowledge on new concepts of nutritional therapies, functional foods and dietary supplements. All of which are meant to revert or prevent unfavorable health conditions. This paper describes the methodology used in the development of the course, the minimum contents exposed, experience and teacher evaluation during the years 2009 and...
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Posted by admin on Sep 1, 2012 in |
NLC are innovative vehicles introduced to overcome some limitations of SLN. Particularly, NLC, composed of a solid lipid and a certain content of liquid lipid (oil), show improved drug entrapment efficiency and an increased stability during storage with respect to SLN. Furthermore, NLC, maintaining their solid state, can control the API release from the matrix. To formulate Nanostructure lipid carriers of an anti-inflammatory drug Betamethasone Dipropionate. To conduct in vitro Diffusion studies using dialysis membrane. To Ex vivo permeation study using rat skin. To conduct stability studies at 4°C and room temperature and to evaluate entrapment efficiency at various time...
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Posted by admin on Sep 1, 2012 in |
This study was designed to investigate the ameliorative effect effect of Hygrophila auriculata (H. auriculata) on lipid peroxidation (LPO) in N-nitrosodiethylamine induced Hepatocellular Carcinoma (HCC) in rats. Experimental rats were divided into different groups: normal, N-Nitrosodiethylamine induced hepatocellular Carcinoma bearing rats, H. auriculata treated hepatocellular carcinoma bearing rats, (200 mg/kg body weight, doses for 28 days), Animals treated with plant extract alone for 28 days. After the treatment period of 28th day , effect of H.auriculata on LPO in serum , liver and kidney of control and experimental animals were assayed and compared. Under basal and in the presence of inducers (H2O2), the levels of LPO were increased significantly (p<0.001) in group II cancer bearing animals where as the levels of LPO in the presence of ascorbic acid and FeSO4, were not statistically different. In group III plant extract treated animals, significant decrease on LPO was observed. However, the changes in the above parameters were comparable with control.Thus, methanolic extract of H. auriculata ameliorated the LPO which is associated...
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