Keywords: سروتونین N-استیل ترانسفراز; α; 7nAChRAlpha7 nicotinic acetylcholine receptor; α; -CGRPAlpha-calcitonin gene-related peptide; AT; 1/2Angiotensin 1/2 receptor; AVP; Arginine vasopressin; BDL; Bile duct ligation; CLR; Calcitonin-like receptor; CNS; Central nervous system; cAMP; Cycli