Association Analysis of the Adenosine A1 Receptor Gene Polymorphisms in Patients with Methamphetamine Dependence/Psychosis
Author Information
Author(s): Kobayashi Hideaki, Ujike Hiroshi, Iwata Nakao, Inada Toshiya, Yamada Mitsuhiko, Sekine Yoshimoto, Uchimura Naohisa, Iyo Masaomi, Ozaki Norio, Itokawa Masanari, Sora Ichiro
Primary Institution: Tohoku University Graduate School of Medicine
Hypothesis
Variations in the A1 adenosine receptor (ADORA1) gene modify genetic susceptibility to methamphetamine dependence/psychosis.
Conclusion
The ADORA1 gene variants may make little or no contribution to vulnerability to methamphetamine dependence/psychosis.
Supporting Evidence
- Seven single nucleotide polymorphisms (SNPs) in the ADORA1 gene were identified.
- No significant differences were observed in genotypic or allelic frequencies between patients and controls.
- Significant differences in latency of psychosis were observed but disappeared after correction for multiple comparisons.
Takeaway
The study looked at a gene related to how people might react to methamphetamine, but it found that this gene doesn't seem to affect whether someone becomes dependent on the drug.
Methodology
The study involved 171 patients with methamphetamine dependence/psychosis and 229 controls, analyzing single nucleotide polymorphisms (SNPs) in the ADORA1 gene.
Limitations
The study's findings may be limited by the sample size and the lack of significant associations after corrections for multiple comparisons.
Participant Demographics
171 patients (138 males, 33 females; mean age 37.5 years) and 229 controls (119 males, 110 females; mean age 41.2 years), all Japanese.
Statistical Information
P-Value
P=0.590 for global test of differentiation among samples based on haplotype frequencies.
Digital Object Identifier (DOI)
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