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IJBB Vol.40(2) [April 2003] >


Title: Liver and colon pro- and anti-oxidant enzyme activities in rats after long-term ethylnitrosourea exposure
Authors: Silig, Yavuz
Ozdemir, Ozturk
Atalay, Atilla
Issue Date: Apr-2003
Publisher: CSIR
Abstract: Liver and colon pro- and anti-oxidant enzyme activities were investigated in rats treated with ethylnitrosourea (ENU) (i.p.) (4 mg/kg body wt) for 6 months. The pro-oxidant enzymes (NADPH cytochrome c reductase, NADH cytochrome c reductase, NADH cytochrome b5 reductase and cytochrome P-4502E1 and the anti-oxidant enzyme, superoxide dismutase (SOD) exhibited significantly increased activity in liver and colon. Glucose-6-phosphate dehydrogenase (G6PDH) and glutathione-S-transferase (GST) showed enhanced activity in liver, but decreased activity in colon. Glutathione peroxidase (GP) and glutathione reductase (GR) activities were significantly increased in colon, but decreased in liver. Catalase (CAT) activity while showed a significant increase in liver, exhibited only marginal increase in colon. Malondialdehyde (MDA) level was significantly elevated in both tissues.
Page(s): 136-138
ISSN: 0301-1208
Source:IJBB Vol.40(2) [April 2003]

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