Linkage disequilibrium and association with methamphetamine dependence/psychosis of μ-opioid receptor gene polymorphisms

  • S. Ide
  • , H. Kobayashi
  • , H. Ujike
  • , N. Ozaki
  • , Y. Sekine
  • , T. Inada
  • , M. Harano
  • , T. Komiyama
  • , M. Yamada
  • , M. Iyo
  • , N. Iwata
  • , K. Tanaka
  • , H. Shen
  • , K. Iwahashi
  • , M. Itokawa
  • , M. Minami
  • , M. Satoh
  • , K. Ikeda
  • , Ide Sora

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

Several studies indicate that the μ-opioid receptor plays a role in addiction not only to opiate drugs but also to alcohol and non-opiate addictive drugs. Our studies aim to reveal the associations between gene polymorphisms and methamphetamine (MAP) dependence/psychosis. We newly identified several polymorphisms and four substantial linkage disequilibrium (LD) blocks in the μ-opioid receptor (OPRM1) gene. We found significant differences in both genotype and allele frequencies of the single-nucleotide polymorphism (SNP) IVS2 + G691C between control (n=232) and MAP-dependent/psychotic patients (n=128). There was also a significant association between IVS2 + G691C and patients with transient psychosis. These results suggest that the OPRM1 gene variations may be a factor in development and prognosis of MAP psychosis.

Original languageEnglish
Pages (from-to)179-188
Number of pages10
JournalPharmacogenomics Journal
Volume6
Issue number3
DOIs
Publication statusPublished - 05-2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Molecular Medicine
  • Genetics
  • Pharmacology

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