
Keywords: تریپتوفان-2،3-دیوکسیریناز; Kynurenic acid; Schizophrenia; Cognition; Alpha 7 nicotinic receptor; Choline; KP; Kynurenine pathway; CNS; central nervous system; IDO; indoleamine-2,3-dioxygenase; TDO; tryptophan-2,3-dioxygenase; KAT; kynurenine aminotransferase; KYNA; kynurenic acid;