Posted by admin on Jul 31, 2014 in |
Many water insoluble drugs present in class 2 and it is characterized by low solubility and high permeability. Solubility of drug can be enhancing by increasing of dissolution rate. Many solubilization techniques are available for increasing of solubility as well as permeability like micronization, coacervation, complexation, solid dispersion, and cosolvent. Poorly soluble and dissolution profile creates problem in pharmaceutical industry for development of dosage form. Solid dispersions are the most attractive method for improving of bioavailability of poorly water soluble drugs. Reduction of particle size leads to increase in wettability and porosity of drugs. Porosity and wettability improves the solubility and dissolution...
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Posted by admin on Jul 31, 2014 in |
Probiotics are live microorganisms, which when administered in adequate amounts confer a health benefit. There are very limited studies on antidiabetic effect of lactic acid bacteria despite their potentiality in reducing the risk of diabetes onset. The present study explored the effect of administering live culture of L. rhamnosus [MTCC No 8712] and L. casei [MTCC No 1408] in STZ induced diabetic albino male rats. Animals (approximately aged 6 months) were grouped into three in a randomized fashion that average weight of animals in each group would be 150-250 gms. Normal feed pellets and water ad libitum were provided to animals throughout the experiment. As Group 1-Control Group, Group 2-Positive control Group were on only insulin treatment (1 unit /day) and the Group 3-Treated Group were on probiotics treatment.The treatment was continued for 30days. Body weight, blood glucose, lipid profile, antioxidative status was analyzed by standard protocol. After subculturing L. rhamnosus and L. casei and standardizing with Mac Ferlan’s device, the mixture culture was administered to the treatment group...
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Posted by admin on Jul 31, 2014 in |
This experimental work present the development and validation of a simple, rapid, accurate and precise RP-HPLC method for the simultaneous estimation of amlodipine besylate (AMB) and nebivolol hydrochloride (NBH) in bulk drug and pharmaceutical dosage forms. The chromatographic separation was carried out with AGILENT 1120 liquid chromatograph in an isocratic mode using Kromasil ODS column (250 x 4.6mm x 5µ particle size) with a mobile phase of mixed acetate Buffer pH 5: acetonitrile (60:40v/v) and the eluents were monitored at 268nm. The retention times of AMB and NBH were 5.26min and 6.84min respectively. The method was found to be linear over the concentration range of 5-25µg/ml for amlodipine besylate and 10-50µg/ml for nebivolol hydrochloride with a correlation coefficient of 0.999. The percentage recoveries of AMB and NBH were found to be 99.01-101.5 % and 99.2-101.0% respectively. The proposed RP-HPLC method was validated according to ICH guidelines and was employed for routine quality control analysis in bulk and combined dosage...
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Posted by admin on Jul 31, 2014 in |
Phytochemical studies on the fruits of Phaleria macrocarpa yielded 2,6,4′-trihydroxy-4-methoxy-benzophenone (1) and 6,4′-dihydroxy-4-methoxybenzophenone-2-O–β-D-glucopyrano- side (2) together with two triterpenoids, 24-methylenecycloartan-3-one (3) and 24-methyl-9,19-cyclo- lanost-25-en-3-ol (4). Investigation on the leaves part led to the isolation of β-sitosterol (5) and stigmasterol (6). All extracts and isolated compounds were tested for their antibacterial activity using disc diffusion method followed by minimal inhibitory concentration (MIC) against two Gram-positive bacterial strains, Bacillus subtilis (ATCC 6633) and Staphylococcus aureus (ATCC 29737) and two Gram-negative bacterial strains, Escherichia coli (ATCC 10536) and Pseudomonas putida (ATCC 49128). In general, the result has demonstrated that all extracts and isolated compounds were exhibited weak activity against all tested bacteria with the inhibition zone having diameter between 6.1 – 7.3 mm.This is the first report on the isolation of triterpenoids (3 and 4) from this plant and the antibacterial activity for compounds...
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Posted by admin on Jul 1, 2014 in |
Background: Familial Hypercholesterolemia (FH) is an autosomal dominant disorder caused by mutation in the LDL receptor gene and characterized by raised LDL-C, tendon xanthomata and premature atherosclerosis. Existing therapies for FH such as statins and LDL apheresis do not offer adequate lipid control in most patients, which has led to the search for more definite alternatives. Two new drugs have been approved by the US FDA in the recent past for FH, namely mipomersen, an anti-sense oligo-nucleotide and lomitapide, a microsomal triglyceride transfer protein. Methods: We did a literature search across PubMed to retrieve articles related to efficacy and safety of mipomersen and lomitapide. Results:Mipomersen has been found to have reasonable efficacy in clinical trials over and above that seen with concomitant statin therapy in FH. Lomitapide has also shown evidence of adequate LDL-C reduction in clinical trials though the number of studies performed with lomitapide is relatively fewer. The subcutaneous route of administration for mipomersen may affect compliance especially with long term treatment. The most common adverse reactions...
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