Possible Interaction: Kynurenic Acid and Methionine

“On the contrary, thiol-containing compounds, L-cysteine and L-methionine , were only inhibiting kynurenic acid production.”

“Ten out of 19 amino acids (specifically, leucine, isoleucine, phenylalanine, methionine , tyrosine, alanine, cysteine, glutamine, glutamate, and aspartate) significantly reduced KYNA formation at 1 mmol/L. These amino acids showed inhibitory effects in a dose-dependent manner, and partially inhibited KYNA production at physiological concentrations.”