Genetic Polymorphism of the Serotonin Transporter Gene, SLC6A4 rs16965628, Is Associated with Obsessive Compulsive Disorder

Genetic Testing and Molecular Biomarkers
Mujgan CengizNese Kocabasoglu

Abstract

Obsessive compulsive disorder (OCD) is a psychiatric disorder characterized by obsessive ideas and compulsive behaviors. Genetic studies have centered on candidate genes involved in OCD etiology related to serotonergic and dopaminergic systems. In this study, the relationship between cathechol-O-methyltransferase (COMT) -287A/G (rs2097063), serotonin transporters 5-HTTLPR I/D, and SLC6A4 rs16965628 polymorphisms in 80 OCD patients and 100 healthy controls was determined. Patients and controls were genotyped for COMT rs2097063 and SLC6A4 rs16965628 polymorphisms by real-time polymerase chain reaction (PCR). The 5-HTTLPR I/D polymorphism was genotyped using PCR and agarose gel electrophoresis. Severity of symptoms was checked with a Yale-Brown Obsession Compulsion Scale (Y-BOCS). When the OCD group and controls were compared, no significant difference was found between COMT -287A/G (rs2097063), 5-HTTLPR I/D polymorphisms, and OCD. However, a significant difference was found between 5-HTT rs16965628 polymorphism and OCD (p=0.025, OR=3.43, 95% CI 1.41-10.35). In addition, the G allele frequency was found to be higher for rs16965628 in the OCD group. No significant difference was observed between COMT -287A/G (rs2097063), SLC6A4 rs1...Continue Reading

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Citations

Feb 2, 2016·Progress in Neuro-psychopharmacology & Biological Psychiatry·Gabriella Francesca Mattina, Meir Steiner
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Methods Mentioned

BETA
PCR
genotyping
pharmacotherapy

Software Mentioned

SPSS

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