RT Journal Article SR Electronic T1 THE INHIBITION OF CHOLINE ESTERASE BY THIAMINE (VITAMIN B1) JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics SP 389 OP 394 VO 65 IS 4 A1 DAVID GLICK A1 WILLIAM ANTOPOL YR 1939 UL http://jpet.aspetjournals.org/content/65/4/389.abstract AB The inhibition by thiamine of the choline esterase in horse and rat serum has been studied, and it was observed that inhibitions were obtained only with concentrations of thiamine in excess of those known at present to occur within living organisms. The affinity of thiamine for choline esterase was calculated to be 26 times that of acetyl choline for the enzyme.