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Association study between 5-HT2A receptor gene polymorphism and heroin dependence and cue-elicited heroin craving
Author(s): 
Pages: 321-325
Year: Issue:  5
Journal: CHINESE JOURNAL OF NERVOUS AND MENTAL DISEASES

Keyword:  海洛因依赖诱发实验渴求5-羟色胺2A受体基因多态性;
Abstract: 目的探讨5-HT2A-1438A/G基因多态与海洛因成瘾及线索诱发海洛因渴求程度的关系.方法采用PCR-RFLP技术对380例海洛因依赖者(依赖组)和275名健康人(对照组)的5-HT2A-1438A/G基因多态进行检测,并对依赖组行线索诱发海洛因渴求实验.比较依赖组和对照组的5-HT2A-1438A/G多态基因型及等位基因频率,分析依赖组不同基因型与线索诱发海洛因渴求程度和主观戒断反应的关系.结果(1)依赖组与对照组的5-HT2A-1438A/G的基因型和等位基因频率均无显著性差异(P>0.05).(2)依赖组中,5-HT2A-1438A/G的3种多态基因型诱发渴求和主观戒断反应的差异有统计学意义(P<0.05),G/G基因型诱发渴求和主观戒断反应均小于A/A(P=0.024,P=0.009)和A/G(P=0.018,P=0.011)基因型.结论未发现5-HT2A-1438A/G基因多态与海洛因成瘾有关,但该基因多态性与线索诱发海洛因的渴求程度有关,A+(A/A和A/G)携带者线索诱发海洛因的渴求程度和主观戒断反应明显高于A-(G/G)携带者.
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