Effect of vitamin A deficiency on the level of glutathione and glutathione S-transferase activity in rat colon and liver.
The effect of vitamin A status on colon and liver glutathione content and the activity of glutathione S-transferase was studied in rats. Animals were fed diets with or without vitamin A for 4-5 weeks. There was no difference in the weight gains of control and deficient animals. Hepatic and colonic level of vitamin A was significantly reduced in vitamin A deficient animals. Hepatic glutathione content was below control values (31%); whereas activity of glutathione S-transferase was enhanced in deficient animals (41.2%). Contrary to this, colon glutathione S-transferase activity was significantly reduced (40.7%) and glutathione content remained unchanged in vitamin A deficiency.
D000818:Animals; D003106:Colon / Q000378:metabolism*; D005978:Glutathione / Q000378:metabolism*; D008024:Ligands / Q000378:metabolism*; D008099:Liver / Q000378:metabolism*; D008297:Male; D009928:Organ Specificity; D051381:Rats; D011919:Rats, Inbred Strains; D014801:Vitamin A / Q000378:metabolism; D014802:Vitamin A Deficiency / Q000378:metabolism*
D008024:Ligands; D014801:Vitamin A; D005978:Glutathione