Posted by admin on Oct 1, 2011 in |
Most of the drugs in the developmental pipeline are emerging from the High-Throughput Screening methodology resulting in increased molecular weights and thus consequential bioavailability problems. The bioavailability issue can be due to insufficient solubility of permeability. Most compounds face the solubility problems. Hence, with the advancement of chemical science, the need of development of pharmaceutical technologies is also increasing. Pharmaceutical approaches to correct the bioavailability are definitely being cost-effective in comparison with chemical approaches which are also time-consuming. Hence various methods of solubility enhancement are being developed. Each technique is with several merits and demerits. To tackle the disadvantages of conventional approaches, newer techniques are developed by many researchers. In this review, an attempt of comparing the conventional and novel techniques is...
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Posted by admin on Oct 1, 2011 in |
G protein-coupled receptors (GPCRs), also known as seven-transmembrane domain receptors, 7TM receptors, heptahelical receptors, serpentine receptor, and G protein-linked receptors (GPLR), comprise a large protein family of transmembrane receptors that sense molecules outside the cell and activate inside signal transduction pathways and, ultimately, cellular responses. GPCRs are involved in a wide variety of important physiological processes like visual sense, sense of smell, behavioral and mood regulation, regulation of immune system activity and inflammation, autonomic nervous system transmission and cell density sensing. There are two principal signal transduction pathways involving the G protein-linked receptors, cAMP signal pathway and Phosphatidylinositol signal pathway. Diabetes mellitus, often simply referred to as diabetes, is a group of metabolic diseases in which a person has high blood sugar, either because the body does not produce enough insulin, or because cells do not respond to the insulin that is produced. One of the reasons for the growing public health concern over the rapidly increasing prevalence of obesity in society is its association with the growing incidence...
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Posted by admin on Oct 1, 2011 in |
Diabetes is a chronic metabolic disorder characterized by altered carbohydrates, fat and protein metabolism, and an increased risk of vascular complications. Swiss albino mice weighing 20-25g and albino rats (Wistar strain) weighing 170-190g of either sex were used for the studies. Mice used for toxicity and rats for anti-diabetic study. The aqueous roots extract of Murva was found to be safe at a dose of 2000mg/kg; hence a dose of 800mg/kg was used for anti-diabetic study. Diabetes was induced by alloxan monohydrate 150mg/kg i.p. After three days of injection of alloxan, diabetes was confirmed by monitoring its blood glucose level. Animals with blood glucose level more than 200mg/dl were taken for studies. Glibenclamide 20mg/kg i.p was taken as std. drug. The test possessed significant anti-diabetic activity (p<0.001) when compared to positive and negative control. Hence the roots extract of Murva may be value in patients with diabetes...
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Posted by admin on Oct 1, 2011 in |
The different extracts of the roots of Caesalpinia Bondue (Family- Fabeaccae) were tested for anti-diabetic activity, by glucose tolerance test in normal rats and alloxan induced diabetic rats. Aqueous ethanol and chloroform extracts had shown significant protection and lowered the blood glucose levels to normal in glucose tolerance test. In alloxan induced diabetic rats the maximum reduction in blood glucose was observed after 3h at a dose level of 250 mg/kg of body weight. The percentage protections by aqueous chloroform and ethanol extracts were 22.28 and 23% respectively. In long term treatment of alloxan induced diabetic rats, the degree of protection was determined by measuring blood glucose, triglycerides, cholesterol and urea levels on 0,3,5,7 and 10th day. Both the extracts showed a significant anti- diabetic activity comparable with that of glibenclamide, standard anti-diabetic...
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Posted by admin on Oct 1, 2011 in |
The objective of the present study was to develop once daily controlled-release matrix tablets of Domperidone Maleate, an anti- emetic agent. Several formulations containing an anti- emetic agent (domperidone maleate) and hydrophilic polymers (Hydroxypropyl methylcellulose, Carbopol and Polyethylene oxide) were prepared by wet granulation methods. The tablets were subjected to thickness, diameter, weight variation test, drug content, hardness, friability and in-vitro release studies. All the tablet formulation showed acceptable pharmacotechnical properties and complied with in house speciation for tested parameters. The results of dissolution studies indicate that formulation FH2 (Drug to HPMC, 1:0.50; purified water as granulating agent) could extend the drug release upto 24 hours. All the formulation exhibited diffusion dominated drug...
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