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IJEB Vol.45(05) [May 2007] >

Title: Effects of paraquat on anti-oxidant system in rats
Authors: Ray, Sanhita
Sengupta, Arnab
Ray, Amitabha
Keywords: Anti-oxidants
Oxidative stress
Rat tissues
Issue Date: May-2007
Publisher: CSIR
Abstract: The toxic effects of paraquat on the anti-oxidant defense system of male albino rats were evaluated, after administering either a single dose (1.5 and 7.5 mg/kg of body weight) or continuous daily doses (same as above, i.e., 1.5 mg/kg and 7.5 mg/kg of body weight) for 3 and 7 days. Glutathione levels in blood cells, liver, lung and kidney tissues decreased in a dose and time dependent manner. Glutathione reductase and glucose-6-phosphate dehydrogenase activity decreased, whereas the activity of glutathione-S-transferase, glutathione peroxidase, catalase and superoxide dismutase increased in paraquat exposure. Malondialdehyde formation also increased in a dose and time dependent manner. The alterations of anti-oxidant system particularly glutathione can be utilized as biomarkers during management of paraquat poisoning.
Page(s): 432-438
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Source:IJEB Vol.45(05) [May 2007]

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