BLOOD TRANSAMINASE ACTIVITIES IN VITAMIN B6 DEFICIENCY: EFFECT OF CONCURRENT THIAMINE AND RIBOFLAVIN DEFICIENCIES

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Abstract
Factorial design experiments in rats revealed that blood transaminase activity was sensitive to vitamin B6 dosage and was not affected by concurrent variation in riboflavin or thiamine administration.The blood transaminase activity was a better index of vitamin B6 nutritional status than was body weight response or liver transaminase activity. Similarly, erythrocyte transketolase activity was found to reflect thiamine dosage, and plasma riboflavin level to reflect riboflavin dosage, regardless of manipulation of pyridoxine dosage.