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Nath A.R.,Osmania University | Reddy M.S.,Stpeters Institute Of Pharmaceutical Science
E-Journal of Chemistry | Year: 2012

The novel 2-[ (E)- 2-aryl-1-ethenyl]-3- (2-sulfanyl-1H-benzo[d]imidazole-5- yl)-3, 4- dihydro-4-quinolinones (4a-j) analogs were synthesized by Knoevenagel condensation of a solution of 2-methyl-3- (2-sulfanyl-1H-benzo[d]imidazole-5-yl) -3, 4-dihydro-4-quinazolinone (3) with aromatic aldehyde in presence of catalytic amount of piperidine . Compounds (4a-j) showed significant biological activity against all the standard strains. All the synthesized compounds were characterized on the basis of their IR, 1H NMR, MASS spectroscopic data and elemental analyses. All the compounds have been tested for antimicrobial and antifungal activity by the cup-plate method. Source

Jayaveera K.N.,Jawaharlal Nehru Technological University Anantapur | Sruthi K.,Stpeters Institute Of Pharmaceutical Science
Journal of Chemical and Pharmaceutical Sciences | Year: 2010

Journal of Chemical and Pharmaceutical Sciences Forty two New 2-{(benzalamino-4-hydroxybenzyl) (1,3,4)-oxadiazino[6,5-b]} Indole derivatives (V) have been synthesized by condensing 2-Amino-4-[(1,3,4)oxadiazino[6,5-b] indole-3-yl]-phenol (IV) with various aromatic aldehydes. The intermediates, on the other hand, have been synthesized by the cyclization of 3-Amino-4- hydroxybenzoic acid (2-oxo-1,2-dihydro-indol-3-ylidene)-hydrazide (III) in presence of Concentrated H2SO4. The title compounds have been purified and characterized by their analytical and spectral data. They have screened for their antihistaminic activity and all the forty two compounds showed very good anti histaminic activity. Compounds V6 and V41 showed potent antihistaminic activity with IC50 values 3.25×10-5 mol/lit and 4.10×10-5 mol/lit respectively. Source

Yasmeen N.,Catholic University of Leuven | Sujatha K.,Stpeters Institute Of Pharmaceutical Science
International Journal of Phytomedicine | Year: 2013

The present study was designed to investigate the anti-inflammatory activity of the ethanolic extract of whole plant of Desmodium gangeticum. Investigations were done by Carrageenan-induced paw oedema method in rats. Here the extract at the 100 & 200mg/kg dose level showed 36.68% (p<0.001) inhibition of edema volume at the end of 4hr.The extract reduced significantly the formation of oedema induced by carrageenan. Inflammatory diseases including different types of rheumatic diseases are very common throughout the world. Therefore the search for a better tolerated anti-inflammatory agent appears to be a necessity. Desmodium gangeticum is used as a folk medicine for the treatment of inflammation in India. Present study revealed that the plant Desmodium gangeticum possesses a significant anti-inflammatory activity as evidenced in carrageenan induced paw edema method, which supports the folkloric claim of the anti-inflammatory activity of the plant. Source

Roy S.,NSHM Knowledge Campus | Sannigrahi S.,NSHM Knowledge Campus | Vaddepalli R.P.,Stpeters Institute Of Pharmaceutical Science | Ghosh B.,Medical College Kolkata | Pusp P.,Galaxy Concept Pvt. Ltd.
Inflammation | Year: 2012

The present study was designed to evaluate the combinatory effect of methotrexate (MTX) and epigallocatechin (EGCG) on the progression of adjuvant-induced arthritis in rats. Adjuvant arthritis (AA) was induced by a single intradermal injection of Freund's complete adjuvant. AA rats were treated with methotrexate (0.3 mg/kg) thrice a week, EGCG (100 mg/kg) daily, and combination of MTX and EGCG thrice a week for a period of 28 days. Paw swelling changes and histopathological and radiographic analysis was assessed to evaluate the antiarthritic effect. Lipid peroxidation and antioxidant enzyme activities in joint tissue homogenate were performed to observe the modulation of antioxidant status along the expression of different pro-inflammatory cartilage cytokines like TNF-a and IL-6.MTX and EGCG combination potentiated both the antiarthritic (decrease of hind paw volume) and the antioxidant effect (SOD, GSH, and catalase) as well as suppression of lipid peroxidation. Combination therapy of MTX and EGCG significantly inhibited the development phase of arthritis, which is supported by histopathological, radiographical, and attenuation of overexpression of cartilage cytokines. EGCG act as potent antioxidant and immunomodulator, suggesting that combined administration of MTX along with EGCG suppressed the development phase of arthritic progression in rats. © 2012 Springer Science+Business Media, LLC. Source

Koteswari P.,S.N.Vanitha Pharmacy Mahavidyalaya | Ramakrishna S.,Indian Institute of Chemical Technology | Reddy V.P.,Stpeters Institute Of Pharmaceutical Science | Janani V.R.,S.N.Vanitha Pharmacy Mahavidyalaya | And 2 more authors.
Journal of Chemical and Pharmaceutical Sciences | Year: 2011

Objective of the present study was the development and validation of a simple RP-HPLC method for the estimation of carvedilol in bulk and pharmaceutical dosageforms. The analysis was carried out by using phenomenex C-18 column in isocratic mode with the mobile phase consisting of Acetonitrile and phosphate buffer in the ratio of 69:31 v/v at a flow rate of 1ml/min. The eluent was detected for 242 nm . The retention time of the drug was 3.57min. The proposed method was statistically validated and found that it is simple, accurate, precise, robust, and suitable for the routine analysis of pharmaceutical formulations. Source

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