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A NEW, SIMPLE, SENSITIVE, ACCURATE & RAPID ANALYTICAL METHOD DEVELOPMENT & VALIDATION FOR SIMULTANEOUS ESTIMATION OF LAMIVUDINE, ABACAVIR & ZIDOVUDINE IN TABLET DOSAGE FORM BY USING UPLC
The present work was undertaken to develop and validate a rapid and consistent UPLC method in which the peaks will appear in a short period as per ICH Guidelines. The UPLC separation was achieved on a Symmetry C18 (2.1 × 100mm, 1.7mm, Make: BEH) or equivalent in an Isocratic Mode. The mobile phase was composed of Phosphate Buffer (60%) [pH 3.0] & Methanol (40%) [UPLC Grade] The flow rate was ...
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DOES THE WHOLE BODY VIBRATION ALTER THE EFFECT OF A CORIANDRUM SATIVUM EXTRACT ON THE BIODISTRIBUTION OF THE RADIOPHARMACEUTICAL TECHNETIUM-99M SODIUM PERTECHNETATE AND SOME BIOMARKERS IN WISTAR RATS?
The exposure to vibrations generated in oscillating/vibratory platform produces whole body vibration (WBV) exercises. The effect of the WBV in the concentrations of some biomarkers and his association between some substances has been investigated. Natural products have been used by the humans as food source and as medications. Coriandrum sativum (CS) is used for the treatment of diabetes and gastr...
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DESIGN, SYNTHESIS AND ANTIMICROBIAL EVALUATION OF NOVEL 1-(2-(4-FLUORO BENZYLTHIO)PYRIMIDIN-4-YL-AMINO)-4-(SUBSTITUTED PHENYL)AZETIDIN-2-ONES
A series of novel 1-(2-(4-fluorobenzylthio)pyrimidin-4-yl-amino)-4-(substituted phenyl)azetidin-2-one analogues (3a-e) were synthesized starting from 2-thiouracil. Reaction of 2-thiouracil with 4-fluorobenzylchloride gave 2-(4-fluorobenzylthio) pyrimidin-4(3H)-one which on chlorination with POCl3 yielded 2-(4-fluorobenzylthio)-4-chloropyrimidine. Further reaction of compound 2-(4-fluorobenzylthio)...
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TRIDAX PROCUMBENS ATTENUATES ACETAMINOPHEN – INDUCED FREE RADICAL REACTION AND CELL NECROSIS IN CULTURED MOUSE HEPATOCYTES
Drug-induced hepatotoxicity represents a major clinical problem and an impediment to new medicine development. In vitro evaluation of hepatotoxicity is an essential stage in the research and development of new pharmaceuticals as the liver is one of the most commonly impacted organs during preclinical toxicity studies. The effect of an aqueous leaf extract of Tridax procumbens was evaluated...
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PRODUCTION OF XYLANASE BY PENICILLIUM SP. AND ITS BIOBLEACHING EFFICIENCY IN PAPER AND PULP INDUSTRY
The main objective of this study is to evaluate the ability of production of xylanase by a fungal strain Penicillium sp. isolated from decaying wood. Xylanases are hydrolytic enzymes produced by many microorganisms which catalyze the hydrolysis of xylan polymer to xylose monomer. The xylanase production was carried out under submerged fermentation xylose as the main substrate, and the enzyme yield...
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SYNTHESIS OF 3- (1 – BENZYL – 1H – BENZO [D] IMIDAZOL – 2 – L AMINO) – 2 – (3 – ARYL – 1- PHENYL – 1H – PYRAZOL – 4 – YL) THIAZOLIDIN – 4- ONES AND THEIR ANTIMICROBIAL ACTIVITIES
Reaction of 1- (1- benzyl- 1H- benzo [d] imidazol- 2- yl) hydrazine (1) with 3-aryl-1-phenyl-1H-pyrazole-4-carbaldehydes (2a-f) in ethanol yielded the corresponding Schiff bases (3a-f). Further, cyclization of compounds 3a- f with thioglycollic acid in benzene in presence of anhydrous ZnCl2 furnished desired novel compounds 3- (1 – Benzyl - 1h - Benzo [D] Imidazol – 2 - L Amino) – 2 - (3 –...
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FORMULATION AND EVALUATION OF CHRONOMODULATED COLONIC DRUG DELIVERY OF NIFIDIPINE
The pulsatile drug delivery works upon the system that releases active pharmaceutical ingredient completely and rapidly after a desired lag time. This type of approach was advantageous for: Drugswith extensive first pass metabolism and biological tolerance. Locally absorbed or acting drugs to a specific site in the intestinal tract (e.g. colon). Adaptation of therapy according to chronopharmacolog...
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DESIGN OF EXPERIMENT UTILIZATION TO DEVELOP AND VALIDATE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY TECHNIQUE FOR ESTIMATION OF PURE DRUG AND MARKETED FORMULATIONS OF ATORVASTATIN IN SPIKED RAT PLASMA SAMPLES
A novel method of estimation and validation of Atorvastatin by Reverse Phase-High Performance Liquid Chromatography coupled with Ultra-violet detection was developed which had high potential in determining drug concentration in rat plasma samples during preclinical studies. Atorvastatin being >99% protein bound, exhibits great challenge in getting extracted from plasma samples. Hence, by treati...
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KNOWLEDGE AND ATTITUDE OF PRIMARY CARE PHYSICIANS TOWARD USE OF HERBS AS MEDICINE IN AL-WAZARAT HEALTH CENTER, PRINCE SULTAN MILITARY MEDICAL CITY, RIYADH, SAUDI ARABIA
Introduction: Herbs are the second most commonly used form of complementary and alternative medicine by public. The uses of medicinal herbs continue to increase worldwide. However, clinicians generally have limited knowledge and confidence about using of herbs in medicine. Therefore, this research aimed to assess the level of knowledge and attitude of primary care physicians toward use of medicina...
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DESIGN OF EXPERIMENT IN THE BIO-ANALYTICAL DETERMINATION OF QUETIAPINE FUMARATE IN HUMAN PLASMA BY A RP-HPLC METHOD
A new, simple, sensitive, accurate and precise RP-HPLC method was developed for the estimation of quetiapine fumarate in human plasma. Full factorial design was used for the optimization of an extraction method. The main effect of volume of deproteinating agent, speed of centrifugation, time of centrifugation and temperature of centrifugation was found to be significant at P<0.0001 on all the r...
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