Volume 30, Issue 5 pp. 372-376
Research Article

No association between the COMT Val158Met polymorphism and the long-term clinical response in obsessive–compulsive disorder in the Japanese population

Hidehiro Umehara

Hidehiro Umehara

Department of Psychiatry, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan

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Shusuke Numata

Corresponding Author

Shusuke Numata

Department of Psychiatry, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan

Correspondence to: S. Numata, Department of Psychiatry, Course of Integrated Brain Sciences, Medical Informatics, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-8-15 Kuramoto-cho Tokushima 770-8503, Japan. Tel: 81-886-33-7130, Fax: 81-886-33-7131, E-mail: [email protected]Search for more papers by this author
Atsushi Tajima

Atsushi Tajima

Department of Bioinformatics and Genomics, Graduate School of Medical Sciences, Kanazawa University, Ishikawa, Japan

Department of Human Genetics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan

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Makoto Kinoshita

Makoto Kinoshita

Department of Psychiatry, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan

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Shutaro Nakaaki

Shutaro Nakaaki

Laboratory of Aging, Behavior and Cognition, Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan

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Issei Imoto

Issei Imoto

Department of Human Genetics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan

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Satsuki Sumitani

Satsuki Sumitani

Department of Psychiatry, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan

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Tetsuro Ohmori

Tetsuro Ohmori

Department of Psychiatry, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan

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First published: 26 May 2015
Citations: 8

Abstract

Objective

Catechol-O-methyltransferase (COMT) is an enzyme that participates in the metabolic inactivation of dopamine and norepinephrine, and the Met allele of the COMT Val158Met polymorphism is associated with lower enzymatic activity. The purpose of the present study was to investigate whether this functional variant is associated with obsessive–compulsive disorder (OCD) and the clinical responses in OCD.

Methods

We first performed a case-control association study between the COMT Val158Met polymorphism and OCD (171 cases and 944 controls). Then, we examined the association between this polymorphism and the clinical responses in 91 of the OCD patients.

Results

Our study did not find a significant association between the Met allele and OCD risk or between the Met allele and clinical responses (p > 0.05).

Conclusion

The present case-control/pharmacogenetic study did not provide clear evidence that the COMT Val158Met polymorphism is a predictor of OCD or of OCD patients' clinical responses. Copyright © 2015 John Wiley & Sons, Ltd.

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