Posted by admin on Nov 1, 2011 in |
The antiulcer activity of ethanolic extract of Calotropis gigantea R.Br leaves (EECG) was investigated in pylorus ligation and ethanol induced ulcer models in experimental rats. In both models the common parameter determined was ulcer index. Ethanolic extract of Calotropis gigantea at a dose of 150 and 300mg/kg produced significant inhibition of the gastric lesions induced by pylorus ligation induced ulcer and ethanol induced gastric ulcer. The extract (150mg/kg and 300mg/kg) showed significant (p<0.05) reduction in gastric volume, free acidity and ulcer index as compared to control. This present study indicates that EECG have potential anti-ulcer activity in both models. These results may further suggest that the extract was found to possess antiulcerogenic as well as ulcer healing properties, which might be due to its antisecretory...
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Posted by admin on Nov 1, 2011 in |
The plant Acalypha indica Linn. is commonly known as Indian Acalypha and it belongs to the family Euphorbiaceae, found in all parts of the tropics. This herbs found in fields and wastes places throughout the hotter parts of the world. The plant has wide uses in the traditional medicines of various countries and reportedly possesses diuretic, purgative and anthelmintic properties, besides being also used for bronchitis, asthma, pneumonia, scabies and other cutaneous diseases. In the present study different extract of Acalypha indica plant was evaluated on fasting and posts prandial blood sugar in both insulin and non insulin dependent diabetes mellitus rats. The induction of diabetes was done by using streptozotocin in neonates. Oral administration of petroleum ether, chloroform, acetone and methanol extracts of the bark (100 mg/kg, p.o.) for 21 days caused a decrease in fasting blood sugar (FBS) in diabetic rats. Among all the extracts, methanol extract was found to lower the FBS significantly (P<0.001) in diabetic rats. Methanol extract also caused a significant decrease (P<0.01) in...
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Posted by admin on Nov 1, 2011 in |
Among novel drug delivery systems, rate controlled oral drug delivery system forms an important area. Recent technological and scientific research has been devoted to the development of rate controlled drug delivery systems to overcome physiological adversities such as short gastric residence times and unpredictable gastric emptying times. Several approaches are currently utilized in the prolongation of the GRT, including floating drug delivery systems (FDDS), swelling and expanding systems, polymeric bioadhesive systems, high-density systems, modified-shape systems and other delayed gastric emptying devices. Floating Drug delivery system are designed to prolong the gastric residence time after oral administration, and controlling the release of drug especially useful for achieving controlled plasma level as well as improving bioavailability. Floating drug delivery systems are the systems which are retained in the stomach for a longer period of time. The main aim of the study was to design and evaluate nifedipine floating tablets. Hydroxypropyl methyl cellulose (HPMC K100M) was used as a polymer. This study proves that GFDDS of nifedipine can be designed using HPMC...
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Posted by admin on Nov 1, 2011 in |
The present study was to evaluate the in vitro cholesterol esterase enzyme inhibitory and in vitro antioxidant activity of the methanol extract of the leaves of Camellia sinensis (L.). Phytochemical screening of the extract shows the presence of flavonoids, phenolics and terpenoids. The extract shows ability to inhibit the enzyme with IC50 (82.46±0.74µg/ml) where as that of standard, Orlistat (24.15±0.59µg/ml). Antioxidant and free radical scavenging activity were also assessed by using the methods, IC50 values for Nitric oxide radical scavenging activity (396.83±0.83µg/ml), whereas for standard curcumin (260.38±0.66µg/ml), hydroxyl radical scavenging activity (47.04±2.26µg/ml) and for quercetin (70.99±1.31µg/ml). Moreover, the extract was found to scavenge the superoxide with 50% inhibition at 308.17±23.25µg/ml and standard ascorbic acid at 225.08±2.44µg/ml, IC50 for ferrous chelating ability assay (44.12±4.63µg/ml) and of ascorbic acid (47.25±.89µg/ml). Total content of flavonoids present in 1mg of extract was 19.8±0.11 µg quercetin equivalents/mg. Results indicated that the extract shows potential bioactive compounds which might have a beneficial impact on diseases related to cholesterol synthesis and showed potential antioxidant and free...
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Posted by admin on Nov 1, 2011 in |
Adhatoda zeylanica Medicus is a well-known plant drug in Ayurvedic, Unani-Tibbi, Siddha, Allopathic, Homeopathic, Naturopathic & Home Remedies. The present communication deals with the pharmacognostic evaluation on the stem and root of Adhatoda zeylanica Medicus (Acanthaceae). Macroscopic and microscopic examinations of the different organ, observations, and differential microchemical test has been carried out for the authentication of the samples. Physiochemical values such as the percentage of total ash, acid insoluble ash, acid soluble ash, extractive values like petroleum ether-soluble extractives, alcohol-soluble extractives and water-soluble extractives were calculated as well as histochemical tests and colour reactions with different chemicals were performed....
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