Posted by admin on Mar 1, 2012 in |
The purpose of the study was to find out the cytotoxic activity of the n-hexane, chloroform and carbon tetrachloride fractions of the ethanolic extracts of the leaves and stems of Baccaurea ramiflora (Lour.). Ethanolic extracts of the leaves and stems of Baccaurea ramiflora were subjected to solvent-solvent partitioning using n-hexane, chloroform and carbon tetrachloride to obtain n-hexane leaves fraction, chloroform leaves fraction, n-hexane stems fraction, chloroform stems fraction and carbon tetrachloride stems fraction. Each fraction was assayed for their cytotoxic effect using brine shrimp lethality bioassay. Among the fractions, the n-hexane fractions of leaves and stems showed significant cytotoxic effects having LC50 values of 7.79 µg/ml (95% confidence interval 6.48-9.37) and 5.78 µg/ml (95% confidence interval 4.76-6.99) respectively as compared to vincristine sulfate (LC50= 2.81 µg/ml (95% confidence interval 1.97-4.01) which was used as positive control. The results support the traditional uses of B. ramiflora for various medicinal purposes and thus demand the isolation and identification of active principles and thorough...
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Posted by admin on Mar 1, 2012 in |
Ziziphus mauritiana belongs to family Rhamnaceae and commonly known as Indian jujube or ber. The leaves are alternate and elliptic. Flowers are small and bisexual. The leaves are about 2.5 – 3.2 cm long. Commercially it is cultivated in China & India. Ziziphus mauritiana is small to medium sized spiny tree. The chemical compositions of the leaves are proteins & amino acids, flavonoids, alkaloids, glycosides, terpenoides, saponins, fibers, tannins and phenolic compounds. Leaves are used in the treatment of diarrhoea, gastric disorder, fever, liver damage and pulmonary disorders. The present work deals to summarize the Pharmacognostical studies like ash value, extractive value, moisture content, volatile matters, crude fibers, phytochemical test, fluorescence analysis and micro chemical test. The alcoholic and aqueous extract of Ziziphus mauritiana leave shows hepatoprotective, antioxidant and other important pharmacological activities. The results of above parameters show the clue for more medicinal properties of Ziziphus...
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Posted by admin on Mar 1, 2012 in |
The aim of present study was to investigate the potential roles of ethanolic and hot water extracts of Andrographis paniculata on reducing the blood sugar level (BSL) in alloxan- induced rats. Oral administration of ethanolic (2 g/kg b. w.) and hot water (0.8 g/kg b. w.) extracts of Andrographis paniculata showed the antidiabetic properties and decreased the blood glucose level by 33.71% (p<0.0001) and 39.69% (p<0.0001) respectively in alloxan induced (40mg/kg b.w.) rats. The results were also compared with that of diabetic control...
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Posted by admin on Mar 1, 2012 in |
The present experiment was aimed to examine the effect of furosemide (loop diuretic) on ingestive behavior & some hematological parameters. The adult Wistar rats (n=6/ group) were divided into control group (n =6; Group I) and experimental group (n =6; Group II). The experimental group received furosemide intraperitonially (40mg/kg BW) for a duration of 30 days. The control group of rats was injected with distilled water of same volume intraperitonially. Body weight, food and water intake was measured each day. At the end of the experimental procedure; blood samples were collected to measure the hematological parameters such as total leukocyte count (TLC), blood cell (RBC) count , Packed cell volume (PCV) and hemoglobin (Hb) concentration. The results were analyzed statistically by using student‘t test. P < 0.05 was considered as significant. Our present results showed that, administration of furosemide showed a significant increase (P < 0.001) in the ingestive behavior and body weight. Further, the RBC count, PCV, Hb concentration also showed a significant increase (P < 0.05) whereas...
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Posted by admin on Mar 1, 2012 in |
In the present study, 3-D QSAR analysis was performed on the previously synthesized and evaluated derivatives of novel 2-arylthiazolidinones as selective analgesic N-type calcium channel blockers. Calcium Channel blockers is the molecular target responsible for the treatment of neuropathic and inflammatory pain. The 3D-QSAR study based on the principle of the alignment of pharmacophoric features by PHASE module of Schrodinger suite has been carried out on the same set of calcium channel blockers. Statistically significant 3-D QSAR model (R2=0.9288) were generated using 21 molecules in the training set. The predictive ability of model was determined using a randomly chosen test set of 6 molecules which gave predictive correlation coefficients (R2pred) of 0.946 for 3-D models, indicating good predictive power. PHASE pharmacophore hypothesis AAHR.13 may correspond very closely to the interactions recorded in the active site of the ligand bound complex. These studies produced models with high correlation coefficient and good predictive abilities. Docking studies were also carried out wherein these analogues were docked into the active sites of COX-2...
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