VMAT2 gene (SLC18A2) variants associated with a greater risk for developing opioid dependence

Author:

Randesi Matthew1,van den Brink Wim2,Levran Orna1,Blanken Peter23,van Ree Jan M4,Ott Jurg5,Kreek Mary Jeanne1

Affiliation:

1. Laboratory of the Biology of Addictive Diseases, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA

2. Department of Psychiatry, Amsterdam Institute for Addiction Research, Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD Amsterdam, The Netherlands

3. Parnassia Addiction Research Centre (PARC, Brijder Addiction Treatment), PO Box 53002, 2505 AA The Hague, The Netherlands

4. Rudolf Magnus Brain Center, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100,  3584 CX Utrecht, The Netherlands

5. Laboratory of Statistical Genetics, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA

Abstract

Aim: To determine if selected serotonergic and noradrenergic gene variants are associated with heroin addiction. Subjects & methods: A total of 126 variants in 19 genes in subjects with Dutch European ancestry from The Netherlands. Subjects included 281 opioid-dependent volunteers in methadone maintenance or heroin-assisted treatment, 163 opioid-exposed but not opioid-dependent volunteers who have been using illicit opioids but never became opioid-dependent and 153 healthy controls. Results: Nominal associations were indicated for 20 variants in six genes including an experiment-wise significant association from the combined effect of three SLC18A2 SNPs (rs363332, rs363334 and rs363338) with heroin dependence (pfinal = 0.047). Conclusion: Further studies are warranted to confirm and elucidate the role of these variants in the vulnerability to opioid addiction.

Publisher

Future Medicine Ltd

Subject

Pharmacology,Genetics,Molecular Medicine

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