Abstract
This influence of vitamin B_<12> on the glomerular filtration were observed on three healthy subjects and 18 renal and livery patients. The administration of vitamin B_<12> had no effect on healthy subjects, while it produced increases in both glomerular filtration and volume of urine on the renal patients whose glomerular fitration had been lowered. Within the range of dose from 15μg. to 60μg., the more the dose, the more considerable the recovery of glomerular filtration.
