The Tryptophan Metabolite Indole-3-Propionic Acid Raises Kynurenic Acid Levels in the Rat Brain In Vivo. - Sathyasaikumar, Korrapati V; Blanco-Ayala, Tonali; Zheng, Yiran; Schwieler, Lilly; Erhardt, Sophie; Tufvesson-Alm, Maximilian; Poeggeler, Burkhard; Schwarcz, Robert (International Journal of Tryptophan Research, 2024)