No evidence for allelic association between schizophrenia and a polymorphism determining high or low catechol O-methyltransferase activity

Daniels, J. K., Williams, Nigel Melville ORCID: https://orcid.org/0000-0003-1177-6931, Williams, Julie ORCID: https://orcid.org/0000-0002-4069-0259, Jones, L. A., Cardno, A. G., Murphy, K. C., Spurlock, G., Riley, B., Scambler, P., Asherson, P., McGuffin, P. and Owen, Michael John ORCID: https://orcid.org/0000-0003-4798-0862 1996. No evidence for allelic association between schizophrenia and a polymorphism determining high or low catechol O-methyltransferase activity. American Journal of Psychiatry 153 (2) , pp. 268-270. 10.1176/ajp.153.2.268

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Abstract

OBJECTIVE: Catechol O-methyltransferase (COMT) inactivates catecholamines by methylating their m-hydroxy group. Some previous studies using biochemical methods have found higher levels of COMT activity in schizophrenic patients. Recently, the genetic polymorphism that underlies variation in COMT activity, which results in the creation of a NlaIII restriction site in the low-activity allele, has been elucidated. METHOD: This study investigated this polymorphism in 78 unrelated schizophrenic patients and 78 comparison subjects matched for age and ethnicity. High-molecular-weight DNA was isolated from lymphocytes with routine procedures, and each individual was typed for high and low COMT activity. RESULTS: The frequency of the NlaIII polymorphism was 0.51 in the schizophrenic patients and 0.53 in the comparison subjects, and no significant allelic or genotypic associations were observed. CONCLUSIONS: There was no evidence for variation in COMT activity between a group of schizophrenic patients and matched comparison subjects.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG) Neuroscience and Mental Health Research Institute (NMHRI)
Subjects:	R Medicine > R Medicine (General)
Publisher:	American Psychiatric Association
ISSN:	0002-953X
Last Modified:	17 Aug 2023 18:28
URI:	https://orca.cardiff.ac.uk/id/eprint/82144

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