A simple and economical dual wavelength spectrophotometric method has been developed for the simultaneous estimation of atorvastatin calcium and amlodipine besylate in their combined dosage forms. The method was based on property of additivity of absorbances. The two wavelengths on amlodipine besylate curve were found out where it showed same absorbance, which were 257.4 and 360.0 nm. At 360.0 ...

Analytical Chemistry Department, Faculty of Pharmacy, Modern University for Technology and Information, Cairo, Egypt Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt Biotechnology Centre, Faculty of Pharmacy, Cairo University, Cairo, Egypt Pharmaceutical Chemistry Department, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University,...

the present study was aimed at evaluating the lipid lowering activity of lercanidipine, a calcium channel blocker, in standard diet induced hyperlipidemic rats. hyperlipidemic rats were divided into different groups and were treated with daily oral dose of lercanidipine and atorvastatin for 7 days. on 8 th day, blood samples were collected and analyzed for serum lipid levels using commercial ki...

The present study was aimed at evaluating the lipid lowering activity of lercanidipine, a calcium channel blocker, in standard diet induced hyperlipidemic rats. Hyperlipidemic rats were divided into different groups and were treated with daily oral dose of lercanidipine and atorvastatin for 7 days. On 8 th day, blood samples were collected and analyzed for serum lipid levels using commercial k...

OBJECTIVE The aim of this study was to evaluate the effect of atorvastatin on the bone formation and resorption markers in ovariectomized rats (experimental study), and to study its effect on the bone mineral density (BMD) in postmenopausal osteoporotic women (clinical study). MATERIALS AND METHODS The study involved experimental and clinical aspects. In the experimental aspect, 42 female Wis...

Atorvastatin calcium, the lipid lowering agent, is taken as a model drug characterized by poor water solubility and bioavailability. In this study an attempt was made for preparation of nanocrystals using high pressure homogenization. A number of stabilizers were included as well as polymers at different concentrations, and the formulations were homogenized for ten cycles at a pressure of 1000 ...

We investigated the pleiotropic effects of a calcium antagonist (amlodipine) on early atherosclerosis development in the presence and absence of an HMG-CoA-reductase inhibitor (atorvastatin) in apolipoprotein E*3-Leiden/human C-reactive protein (E3L/CRP) transgenic mice. Male E3L/CRP transgenic mice were fed a cholesterol-containing diet either with or without amlodipine and/or atorvastatin. Af...

Deficiency of tetrahydrobiopterin (BH4) in the vascular tissue contributes to endothelial dysfunction through reduced eNOS activity and increased superoxide anion (O2(-)) generation in the insulin-resistant state. We investigated the effects of atorvastatin, a 3-hydroxyl-3-methylglutaryl coenzyme A (HMG CoA) reductase inhibitor; amlodipine, a calcium antagonist; and their combination on blood p...

BACKGROUND Accumulating evidence suggests that myeloperoxidase (MPO) is involved in atrial remodeling of atrial fibrillation (AF). Statins could reduce the MPO levels in patients with cardiovascular diseases. This study evaluated the effects of atorvastatin on MPO level and atrial remodeling in a rabbit model of pacing-induced AF. METHODS Eighteen rabbits were randomly divided into sham, cont...