Gene variants and serum levels of synaptic vesicle and presynaptic plasma membrane proteins in alcohol dependence and their relationship with impulsivity and temperament

ABSTRACT Background: Exocytosis-related gene variants have been suggested to be associated with externalizing behaviors. Objective: This study aimed to examine VAMP2 26 bp Ins\Del, synaptotagmin XI (Syt11) rs3820594 and 33-bp promoter, Syntaxin 1A (Syn-1A) rs1569061 and SNAP-25 rs1051312 and rs3746544 polymorphisms, their serum levels and their relationship with impulsivity, temperament in individuals with alcohol dependence (AD) and healthy controls (HC). Methods: The study included 107 individuals with AD and 104 HCs. Single-nucleotide polymorphisms (SNPs) were studied with polymerase cha...