Posted by admin on Mar 31, 2016 in |
The inhibitory role of trace and major elements in urinary stone crystallization was investigated in five widely used anti-urolithiatic medicinal plants of North East India. Fifteen elements namely K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se and Br were detected with different concentrations (in ppm level) by Proton Induced X-ray Emission(PIXE) technique while light elements namely F, Na, Mg, Al, P and Cl by Proton Induced Gamma ray Emission(PIGE) technique in the studied plants. Analysis was performed on thick targets (pellets) prepared using the powders of specimens through a series of processing steps. Thick targets of plant based Certified Reference Materials (CRMs) were served as standardization of PIXE and PIGE set...
Read More
Posted by admin on Mar 31, 2016 in |
Quality by Design (QbD) is a philosophy that refines the level of knowledge associated with a product that uses process understanding to deliver a product with the desired critical quality attributes. The objective of this present study was to develop and demonstrate an integrated multivariate approach to develop and quantify the constituent concentrations of saxagliptin drug in its pure and formulated forms. The method was developed using a mobile phase acetonitrile: water (pH3), (20:80 v/v) on an Agilent, TC C18 (250 × 4.6 mm) 5μm column and flow rate 1.0 ml/min which was optimized with help of design expert software and validated according to ICH Q2 guideline and application of this method to different stress condition of saxagliptin. The detector linearity was established in concentrations ranging from 10-90μgmL-1, the regression coefficient was 0.9993. The method fulfilled validation criteria and was shown to be sensitive, with limits of detection (LOD) and quantitation (LOQ) of 0.003 and 0.010?gmL-1, respectively. The percentage relative standard deviations for robustness and ruggedness were observed within...
Read More
Posted by admin on Mar 31, 2016 in |
Migraine is an episodic headache disorder characterized by a combination of neurological, gastrointestinal, and autonomic symptoms. Eletriptan hydrobromide (EHBr) is a second generation triptan drug intended for treatment of migraine headaches. The main aim of the study was to prepare and evaluate elastic niosomes of EHBr (ENEH) and optimise the concentration of non-ionic surfactants and ethanol by ethanol injection method. The ENEH formulations were characterised for vesicular shape, size, zeta potential, entrapment efficiency and percutaneous permeation. The formulations exhibited entrapment efficiencies of 19.21±0.124% to 58.20±0.147%. The optimised formulation was FE2 consisting of Span 80 and Tween 20 prepared by ethanol injection method exhibited vesicle size of 207.2±53.7 nm, zeta potential of 19.5 mV entrapment efficiency of 69.70%, flux of 53.903±0.13 μg/cm2/hr, Q8 of 448.262±0.18 µg/cm2, permeability coefficient of 0.013 cm/hr and lag time of 0.2±0.14 hrs and skin content of 1423±12.4 μg/gm. In vitro and ex vivo drug permeation across rat skin revealed improved drug permeation and higher transdermal flux with ENEH formulations compared to niosomes and drug solution....
Read More
Posted by admin on Mar 31, 2016 in |
Hydrazones are an important classe of biologically active compounds found in many synthetic compounds. In view of their importance in synthetic chemistry, the present article reported that a new series of novel hydrazone derivatives (4a-e) were synthesized by condensation of 3-((4-formyl-2-methoxyphenoxy)methyl)benzonitrile(3) with different benzohydrazides and confirmed by their IR, 1H NMR, and Mass spectral data. Further these synthesized derivatives (4a-e) were evaluated for their biological activities such as antiinflammatory, analgesic, and antibacterial activities. All the derivatives were showing the pharmacological activities mainly due to the presence of pharmacophore, azomethine group (CONH- N=CH) and were modified with various substituents. Among all the compounds 4a, 4d, and 4e incorporated with 4-methoxy, 4-chloro and 2,4-dichloro moieties exhibited more antiinflammatory activity and the remaining compounds 4b and 4c incorporated with 4-bromo and 2-bromo substituents showed moderate activity when compared with standard reference, indomethacin. The compounds 4d, 4e and 4b showed good analgesic activity and remaining compounds 4a and 4c showed moderate activity comparable to that of standard drug diclofenac. The compounds 4a and...
Read More
Posted by admin on Mar 31, 2016 in |
In the present study, the phytochemical screening, in vitro antioxidant activity, thrombolytic activity, membrane stabilizing activity, acute toxicity and anti-depressant activity were evaluated using Forced Swimming Test (FST) of the root extract of Typhonium trilobatum. Phytochemical evaluation was done by performing different chemical tests and the presence of flavonoid, carbohydrate and phenol were detected in the root parts of the plant. Methanol, chloroform and ethanol were used as solvent in extraction process. Each extraction yield was analyzed using High Performance Liquid Chromatography (HPLC) to identify and measure the quantity of ascorbic acid. Total flavonoid content and total phenol content was also determined by UV–VIS Spectrophotometer. Ascorbic acid, flavonoid, phenol was found to be of higher concentration in ethanol extract compared with methanol and chloroform extract. Ethanol was suitable solvent in extraction process of Typhonium trilobatum. In vitro antioxidant activity of the root extracts was performed by using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging, cupric reducing anti-oxidant activity, scavenging of hydrogen peroxide and nitric oxide radical scavenging assay. These four...
Read More
