抄録
Rural children were administered riboflavin, pyridoxine and other vitamins in various combination in an attempt to determine whether the urinary excre-tion of 17-ketosteroid and 17-hydroxy corticoid would reflect the administration of these vitamins. In addition, tryptophan-load-test was conducted to investigate the effect of vitamin other than pyridoxine on the metabolism of tryptophan.
The result was that the urinary pattern of 17-hydroxy corticoid was improved significantly, and xanthurenic acid excretion was decreased remarkably after sup-plementation of not only pyridoxine but also of riboflavin. From the data pre-sented here it seems that some of the children were deficient in riboflavin and pyridoxine, and this may cause stresses to and disorder of tryptophan metabo-lism among them.
