Effect of Vitamin E on the Urea Cycle Enzymes, Ornithine-keto

Autor: Koichi Shimbayashi, Shigemi Shoya
Rok vydání: 1971
Předmět:
Zdroj: Agricultural and Biological Chemistry. 35:983-988
ISSN: 1881-1280
0002-1369
DOI: 10.1271/bbb1961.35.983
Popis: Albino female rats were fed for 4 to 6 months on either a vitamin E-supplemented or on a vitamin E-unsupplemented diet. Of the urea cycle enzyme activities, carbamyl phosphate synthetase and ornithine transcarbamylase were significantly higher in the vitamin E-supplemented group than in the vitamin E-unsupplemented one. Reversely, the activity of ornithine-keto acid trans-aminase was lower in the former group. Urea level in the serum and liver was lower in the vitamin E-supplemented group, but urea excretion was accelerated in this group. Activity of isocitric dehydrogenase was significantly higher in the vitamin E-supple-mented group. From these results, it is suggested that vitamin E is efficient for the de-toxication of ammonia in the animal body.
Databáze: OpenAIRE