title: Polymorphisms in the 5-hydroxytryptamine receptor 3B gene are associated with heroin dependence in the Chinese Han population.
abstract: Previous studies suggested that the 5-hydroxytryptamine receptor 3B (HTR3B) is involved in heroin dependence by modulating dopamine (DA) release in the reward pathway and that the genetic polymorphisms in HTR3B play plausible role in modulating the risk of developing heroin addiction. To identify markers that contribute to the genetic susceptibility to heroin dependence, we examined the potential associations between heroin dependence and 7 single nucleotide polymorphisms (SNPs) of the HTR3B gene using multiplex SNaPshot technology in a Chinese Han population. Participants included 418 heroin-dependent subjects and 422 healthy controls. The results suggested that the genotype distribution of HTR3B rs1176746 and rs1185027 were significantly different between heroin dependent subjects and healthy controls (both p=0.004). The frequency of the GG of rs1176746 and AA of rs1185027 genotype in heroin-dependent subjects were significantly higher than that of healthy controls, while the GA of rs1176746 and AT of rs1185027 genotype distributions were much lower. Another SNP, rs10789970, showed a nominally significant p-value in the genotype distribution between heroin dependent subjects and controls (p=0.022). These findings indicate the important role of HTR3B polymorphisms in heroin dependence among the Chinese Han population and provide valuable information for further genetic and neurobiological investigations of heroin dependence.
authors: College of Forensic, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China.
authors: Fangyuan
authors: F
authors: Yin
authors: College of Forensic, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China.
authors: Yuanyuan
authors: Y
authors: Ji
authors: College of Forensic, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China.
authors: Jing
authors: J
authors: Zhang
authors: College of Forensic, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China.
authors: Hao
authors: H
authors: Guo
authors: College of Forensic, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China.
authors: Xin
authors: X
authors: Huang
authors: College of Forensic, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China; Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China.
authors: Jianghua
authors: J
authors: Lai
authors: College of Forensic, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China; Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China. Electronic address: weisg@mail.xjtu.edu.cn.
authors: Shuguang
authors: S
authors: Wei
mesh_terms: D000328:Adult; D044466:Asian People; D005787:Gene Frequency; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006556:Heroin Dependence / Q000235:genetics*; D006801:Humans; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D044406:Receptors, Serotonin, 5-HT3 / Q000235:genetics*
chemical_list: C509410:HTR3B protein, human; D044406:Receptors, Serotonin, 5-HT3
keywords: 5-Hydroxytryptamine receptor 3B; Chinese Han population; Heroin dependence; Single nucleotide polymorphisms