Posted by admin on Nov 1, 2013 in |
The aim of the present study was to formulate lornoxicam into rectal suppositories as a new dosage form, to avoid its reported gastric irritation and to provide a rapid onset of action for children. Suppositories were prepared using fatty bases namely; witepsol H-15, suppocire AML, CM, witepsol E-75 and water soluble bases; mixtures of poly(ethylene glycol), PEGs, with different molecular weights. The prepared suppositories were investigated for their weight variation, drug content, melting point, fracture point, disintegration time and in-vitro release pattern. Moreover, aging study was performed both at room temperature and in refrigerator for 6 month. In-vivo study was also carried out in rabbits and the pharmacokinetic parameters were estimated. The prepared suppositories complied with the USP 34 pharmacopoeial requirements and PEGs-based suppositories released significantly higher amounts of lornoxicam compared with fatty bases (p<0.05, ANOVA/Dunnett). Furthermore, lornixocam in selected formulations was found to be stable in both fatty and PEGs bases after the aging study. Formulation No. 5 showed a higher Cmax of 1.832±0.35 µg/ml, short tmax of...
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Posted by admin on Nov 1, 2013 in |
The crude methanol extracts of aerial parts ofAbrus precatorius L., leaf of Magnolia pterocarpa Roxb. and Dracaena spicata Roxb. and leaf and bark ofRavenala madagascariensis Sonn. as well as their hexane, carbon tetrachloride, chloroform and aqueous soluble partitionates were subjected to screenings for thrombolytic and membrane stabilizing activities. Among the extractives of A. precatorius, the crude methanol extract exhibited the highest thrombolytic activity (34.92±0.54 %) while the carbon tetrachloride soluble fraction of M. pterocarpa exhibited 22.59±0.88 % clot lysis. D. spicata extractives showed mild thrombolytic activity. The methanolic crude extract of R. madagascariensis leaf and the aqueous soluble fraction of R. madagascariensis bark extract showed 45.32±0.82 % and 32.67±0.74% clot lysis, respectively. In hypotonic solution and heat induced conditions, the crude methanol extract of A. precatoriusand the hexane soluble fraction of crude methanol extract of M. pterocarpa inhibited 63.46±0.84 % & 36.54±0.21 % and 66.12±0.66 % & 40.54±0.02 % haemolysis of RBCs, respectively as compared to 71.90 % and 42.12 % inhibition by acetyl salicylic acid (0.10 mg/ml), respectively....
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Posted by admin on Nov 1, 2013 in |
Aim: The aim of the present study was to evaluate lead toxicity on the male reproductive system during developing period of neonates. Methods: Histopathological alterations were observed in testis of neonates on PND 1 and PND 21. Lead acetate was administered via oral gavaging at 320 mg/kg BW to pregnant Swiss mice from 10th day of gestation upto 21st day of lactation. OralExposure of 160 mg/kg BW vitamin C (ascorbic acid) and 130 mg/kg BW vitamin E (tocopherol acetate) was given from 10th day of gestation upto 21st day of lactation. Result: Oral supplementation of antioxidants vitamin C and E with lead slightly recovered these adverse effects and retained normal function but independently they also induced obstruction in development of testis. Conclusion: We can conclude from our findings that lead acetate administrated during gestation and lactation adversely affects developing testis. Supplementation of high doses of vitamins during gestation and lactation are not beneficial because they also generate some alterations in developing...
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Posted by admin on Nov 1, 2013 in |
A Simple, Rapid, Precise, Accurate, Robust and Stability indicating Reverse Phase HPLC method has been developed to estimate Capecitabine in tablet dosage form using mobile phase mixture consisting of Phosphate buffer : Acetonitrile (80:20) v/v at the flow rate of 1.2ml/min. The Hypersil BDS C8 column (250mm x 4.6mm x 5mm) was used as the stationary phase. The mobile phase was run for 15 min at the wavelength of 240 nm. The mean recovery was found to be 99.91%. The linearity range was 50% to 150% and was found to be successful under 0.999. The proposed method has fulfilled all the validation parameters such as linearity, Robustness, Accuracy, System Precision, intermediate precision, method precision, solution...
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Posted by admin on Nov 1, 2013 in |
A quantitative structure activity relationship study on series of total thirty three pthalimide analogues reported compounds was taken. Pthalimide analogues have several advantages over present ant diabetic drugs. The present drugs target insulin resistance and insulin insufficiency. So, it is believed that agents will be available alternative to other second line treatment options including sulfonylurea TZDs, DPP-4 inhibitors. Several statistical regression expressions were obtained using stepwise multiple linear regression analysis (MLR) and partial least square analysis (PLS). Pthalimide analogues activity is described by models that are built on simple 2D molecular descriptors and nevertheless are of good quality and predictive power. The results obtained after performing QSAR were; r2 = 0.8986, (MLR method) (equation-1), (equation-2) r2 = 0.6898 (PLS method) The parameters that are found to have significant correlation with hypoglycemic activity are Hosoya Index which is signifies the topological index or Z index, negatively contributing in the biological activity (~40%). The next descriptor is T_N_N_4 i.e. number of Nitrogen atoms (single double or triple bonded) separated from any...
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