DRD2 and ANKK1 genes associate with late-onset heroin dependence in men

Chang Chih Tsou, Han Wei Chou, Pei Shen Ho, Shin Chang Kuo, Chun Yen Chen, Chang Chih Huang, Chih Sung Liang, Ru Band Lu, San Yuan Huang

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Objectives: Dopamine plays an important role in reward system of heroin dependence (HD), and dopaminergic D2 receptor (DRD2) gene is a candidate for the aetiology of HD. Ankyrin repeat and kinase domain containing 1 (ANKK1) gene is proximal to DRD2 and may influence its expression. We explored whether DRD2 and ANKK1 associate with occurrence of HD, and whether the genetic variants influence personality traits in male patients with HD. Methods:DRD2/ANKK1 polymorphisms were analysed in 950 unrelated Han Chinese male participants (601 HD patients and 349 healthy controls). All participants were screened using the same assessment tools and all patients met the diagnostic criteria of HD. Personality traits were assessed in 274 patients and 142 controls using the Tridimensional Personality Questionnaire. Results: According to the allele, genotype and haplotype frequency analysis, we observed an association between HD and several DRD2/ANKK1 polymorphisms (rs1800497, rs1800498, rs1079597 and rs4648319); this was most notable in the late-onset HD subgroup. However, these DRD2/ANKK1 polymorphisms did not associate with specific personality traits in HD patients and controls. Conclusions:DRD2/ANKK1 may play an important role in occurrence of late-onset HD, but does not mediate the relationship between personality traits and HD in Han Chinese male population.

Original languageEnglish
Pages (from-to)605-615
Number of pages11
JournalWorld Journal of Biological Psychiatry
Issue number8
Publication statusPublished - 2019 Sept 14

All Science Journal Classification (ASJC) codes

  • Psychiatry and Mental health
  • Biological Psychiatry


Dive into the research topics of 'DRD2 and ANKK1 genes associate with late-onset heroin dependence in men'. Together they form a unique fingerprint.

Cite this