Effect of Vitamins on Acetylcholine Synthesis. The Apparently Specific Action of Vitamin E. *

Abstract

Summary

1. The effect of vitamins on the synthesis of acetylcholine was investigated. 2. Vitamin A and K decreased the synthesis of acetylcholine in low and increasing concentrations. Vitamin D did not modify the synthesis in low concentrations and decreased it in higher ones. Vitamin B₁ slightly increased the synthesis of acetylcholine in low concentrations and decreased it in higher ones. 3. Riboflavin, nicotinic acid, nicotinamide, calcium pantothenate, p-amino benzoic acid, pyridoxine, and vitamin C did not modify the synthesis in low concentrations and increased it in higher ones. 4. Vitamin E increased the synthesis in low and increasing concentrations.