A Population-Based Study of Four Genes Associated with Heroin Addiction in Han Chinese.
Recent studies have shown that variants in FAT atypical cadherin 3 (FAT3), kinectin 1 (KTN1), discs large homolog2 (DLG2) and deleted in colorectal cancer (DCC) genes influence the structure of the human mesolimbic reward system. We conducted a systematic analysis of the potential functional single nucleotide polymorphisms (SNPs) in these genes associated with heroin addiction. We scanned the functional regions of these genes and identified 20 SNPs for genotyping by using the SNaPshot method. A total of 1080 samples, comprising 523 cases and 557 controls, were analyzed. We observed that DCC rs16956878, rs12607853, and rs2292043 were associated with heroin addiction. The T alleles of rs16956878 (p = 0.0004) and rs12607853 (p = 0.002) were significantly enriched in the case group compared with the controls. A lower incidence of the C allele of rs2292043 (p = 0.002) was observed in the case group. In block 2 of DCC (rs2292043-rs12607853-rs16956878), the frequency of the T-T-T haplotype was significantly higher in the case group than in the control group (p = 0.024), and fewer C-C-C haplotypes (p = 0.006) were detected in the case group. DCC may be an important candidate gene in heroin addiction, and rs16956878, rs12607853, and rs2292043 may be risk factors, thereby providing a basis for further genetic and biological research.
College of Forensic Science, Xi'an Jiaotong University, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an, PR China.
Yunxiao
http://orcid.org/0000-0002-3336-3495
Y
Li
College of Forensic Science, Xi'an Jiaotong University, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an, PR China.
Xiaomeng
X
Qiao
College of Forensic Science, Xi'an Jiaotong University, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an, PR China.
Fangyuan
F
Yin
College of Forensic Science, Xi'an Jiaotong University, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an, PR China.
Hao
H
Guo
College of Forensic Science, Xi'an Jiaotong University, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an, PR China.
Xin
X
Huang
College of Forensic Science, Xi'an Jiaotong University, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an, PR China.|Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education, Xi'an, PR China.
Jianghua
J
Lai
College of Forensic Science, Xi'an Jiaotong University, Key Laboratory of Ministry of Public Health for Forensic Science, Xi'an, PR China.|Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education, Xi'an, PR China.
Shuguang
S
Wei
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