Effect of dimethoate on hepatic cytochrome P-450 and glutathione S-transferase activity in pigeon and rat.
Indian J Exp Biol
;
1991 Nov; 29(11): 1071-3
Article
in English
| IMSEAR
| ID: sea-58392
ABSTRACT
Effect of acute exposure (24 hr) to different oral doses of dimethoate on hepatic microsomal cytochrome P-450 (Cyt. P-450) content and cytosolic glutathione S-transferase (GST) activity were determined in pigeon and rat to ascertain difference in the metabolic response as a measure of species selective toxicity. Dimethoate at five different doses caused a statistically significant decrease in Cyt. P-450 content both in pigeon and rat. However, reduction in GST activity was significant at three doses in pigeon and at high dose in rat. Thus, a different quantum of hepatic Cyt. P-450 decrease and a differed response of GST activity against dimethoate exposure in pigeon and rat may be one of the possible causes for relatively higher toxicity of dimethoate in birds.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Columbidae
/
Rats
/
Rats, Inbred Strains
/
Cytochrome P-450 Enzyme System
/
Dimethoate
/
Glutathione Transferase
/
Liver
/
Animals
Language:
English
Journal:
Indian J Exp Biol
Year:
1991
Type:
Article
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