Posted by admin on Apr 30, 2016 in |
Transdermal drug delivery system (TDDS) involving HPMC-PVA patches were prepared as matrix-dispersion system with Pioglitazone HCl (PH) or Gliclazide (GZ) and drug release pattern from these patches were evaluated in-vitro as well as in-vivo. It has been found that 82.41% of Pioglitazone HCl and 70.12% of Gliclazide were released in-vitro in the period of 12 hours and the release patterns was zero-order. In-vivo skin permeation studies in alloxan-induced diabetic rats showed significant improvement on day-to-day diabetic control. Treatment with the patches induced hypoglycemia in normal rats whereas in diabetic rats blood glucose level returned to normal level within 16 hours. These findings suggest that delivery of these drugs through TDDS may overcome the first-pass effect when administered orally and thus gives better glycemic control in diabetic...
Read More
Posted by admin on Apr 30, 2016 in |
The computational modeling and high throughput screening techniques have been used to identify small molecules that specifically target functional surface sites of the androgen receptor in Prostate cancer. Pharmacophore modeling, Virtual screening, docking based analyses is used for development of new chemical entities. The purpose of the current work is to establish pharmacophore model for the FDA approved anti-androgen receptor drugs of prostate cancer by using the software Ligand Scout 3.1, The data sets for the anti-androgen compounds were downloaded in.sdf format from Pubchem database. The model consists of five hydrogen bond acceptors, and one hydrophobic moieties and one aromatic ring which are defined as essential feature for androgen receptor inhibitors. Then the derived pharmacophore model was compared with the Zinc database of available standard anticancer drugs, Virtual screening of ZINC chemical databases leads to identification of one hit, and this compound can be useful for the design of future targets and development of new drugs to cancer. The newly obtained compound is then docked with androgen receptor with...
Read More
Posted by admin on Apr 30, 2016 in |
The persistent prevalence of poor-quality medicines in resource-limited settings has contributed significantly to the alarming global trends in antibiotic resistance. Antibiotics are among the most used, abused and counterfeited medicines and therefore require regular monitoring and surveillance to provide reliable data for proper healthcare delivery. This study evaluated the quality of a total of 45 samples of Azithromycin, Erythromycin and Clindamycin distributed in Accra and Lagos by HPLC for active pharmaceutical ingredient (API) content and in-vitro dissolution for bioavailability. The results revealed that although all the samples contained the requisite API, only 27% were compliant with US Pharmacopoeia requirements for content. For Azithromycin and Clindamycin samples, the presence of excess API was the cause for non-compliance. Regardless of the high failure rate with respect to content, all Azithromycin samples exhibited good dissolution profiles, while 67% of Clindamycin and 36% of Erythromycin were compliant with in-vitro dissolution. These findings suggest that the population in the study sites and possibly in other parts of the sub regionis exposed to substandard antibiotics....
Read More
Posted by admin on Apr 30, 2016 in |
The aim of this study is to investigate the cytotoxic effect of various extracts from Phyllanthus emblica L. According to Ayurveda this plant has potent anticancer activity and hence, this study is targeted at screening potential cytotoxic extracts using a yeast system. Yeast has been used as a model organism for many preclinical drug screens. In this study phytochemical extraction has been done by three methods (sonication, low and elevated temperature systems) using six different solvent systems (aqueous, methanol, ethyl acetate, petroleum ether, chloroform: methanol and water: methanol). The viability studies have been done using Methyl Thiazole Tetrazolium (MTT) assay. Aqueous extract at elevated temperature and water: methanol extract showed viability less than vinblastine. Further phytochemical analysis was done to identify major group of compounds present in each extract. It was concluded that flavonoids are present in extracts by doing TLC. HPTLC using standards was carried out and showed that at least two chemotherapeutic agents kaempferol and rutin were present. The data further indicates that kaempferol is major constituent...
Read More
Posted by admin on Apr 30, 2016 in |
Cucumis callosus (Rottl.) Cogn. (Cucurbitaceae) is a highly branched very common prostate, perennial herb, distributed throughout India in the arid zones. Objective: To evaluate the antihyperglycemic potential of C. callosus fruit in experimental animal model. Materials and methods: Hyperglycemia was induced in rats by single intraperitoneal injection of STZ (55 mg/kg body weight). Three days after STZ induction, the hyperglycemic rats were treated with MECC at the doses of 200 and 400 mg/kg body weight (p.o.) daily for 15 days. Glibenclamide (0.5 mg/kg, orally) was used as reference drug. The fasting blood glucose levels were measured on every 5th day during the 15 days of treatment. Serum biochemical parameters including lipid content were estimated. Results and discussion: MECC at the doses of 200 and 400 mg/kg significantly (P < 0.01) and dose dependently reduced blood glucose levels towards normal as compared to that of STZ control group; the higher dose (400 mg/kg) being the most potent showing complete normalization of blood glucose levels. Serum biochemical parameters including lipid profile...
Read More
