The authors have made an investigation on urinary 17-Ketosteroid excretion of peasants living in Kanegasaki-machi and Ezuriko-mura where the rate of incidence of arteriosclerosis and hypertension was considered to be comparatively high. The relation between variation of 17-Ketosteroid values according to age, sex and season of the year was examined. Urine nitrogen and creatinine were also measured and a study on their relation to 17-Ketosteroid urinary excretion was made.
The authors have conducted consecutive with female subjects (adults and old women) in order to investigate the influence of foods on urinary 17-Ketosteroid excretion. The old subjects were fed on a normal diet according to their age and the adults on both a normal diet and a low-fat, low protein diet. The former group did not show a markable difference, whereas the latter group showed normal values in case of the normal diet and a 35 per cent (means) lower value than the normal diet when the low-fat low-protein diet was supplied.