期刊
SUBSTANCE ABUSE AND REHABILITATION
卷 3, 期 -, 页码 49-57出版社
DOVE MEDICAL PRESS LTD
DOI: 10.2147/SAR.S25864
关键词
serotonin; genetic; substance dependence; addiction; alcohol; drug
资金
- NIDA [K12 DA00167, RO1 DA023230]
- NATIONAL INSTITUTE ON DRUG ABUSE [K12DA000167] Funding Source: NIH RePORTER
Serotonin (5-hydroxytryptamine [5-HT]) is an important neurotransmitter implicated in regulating substance-use disorder (SUD) acquisition, maintenance, and recovery. During the past several years, an abundance of research has begun discovering and describing specific 5-HT genetic polymorphisms associated with SUDs. Genetic variations in the 5-HT system, such as SLC6A4, HTR1B, HTR2A, HTR2C, HTR3 (HTR3A, HTR3B, HTR3C, HTR3D, and HTR3E), likely play a role contributing to SUD patient heterogeneity. The 5-HT transporter-linked polymorphic region S allele, located in SLC6A4, has now been modestly associated with alcohol dependence in two large meta-analyses. Additional 5-HT genes may also play a role but have not been extensively investigated. A limited number of SUD treatment studies have included 5-HT gene variation as moderating treatment outcomes, but the results have been equivocal. Future research on 5-HT addiction genetics should adopt whole-genome sequencing technology, utilize large study samples, and collect data from multiple ethnic groups. Together, these methods will build on the work already conducted with the aim of utilizing 5-HT genetics in SUD treatment settings.
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