ABSTRACT
Objective To explore the relationship between the rs3785143 polymorphism of norepinephrine transporter gene,and investigate the influence of interaction effect between NET gene polymorphism and childhood abuse in adolescents with violent behavior.Methods Adolescent male offenders were divided into violent group (124 samples) and nonviolent group (120 samples).The rs3785143 polymorphisms of NET gene were measured by used SNaPshot SNP technology in 244 samples.Chi-square test was used to compare the distribution difference between three groups of each gene type and the allele frequency distribution.Results ①There was no statistically significant difference among violent group and nonviolent group in the genotype and allele frequencies of rs3785143 polymorphism (x2=0.753,0.022; all P＞0.05).②64.5％ violent adolescents have experience of childhood abuse,and 35.5％ had no history of abuse ;48.3％ nonviolent adolescents have experience of childhood abuse,and 51.7％ had no history of abuse(x2=6.50,P＜0.05).③There was not significant interaction between NET gene polymorphism and childhood abuse((OR=0.386,P＞0.05) 95％ CI (0.457-4.739)).Conclusions The NET gene polymorphism is not associated with violent behavior in male adolescents,and there was not interaction between NET gene polymorphism and childhood abuse.