PMID: 11925305Apr 2, 2002Paper

A functional polymorphism in the COMT gene and performance on a test of prefrontal cognition

The American Journal of Psychiatry
Anil K MalhotraDavid Goldman

Abstract

In the prefrontal cortex, the enzyme catechol O-methyltransferase (COMT) is critical in the metabolic degradation of dopamine, a neurotransmitter hypothesized to influence human cognitive function. The COMT gene contains a functional polymorphism, Val158Met, that exerts a fourfold effect on enzyme activity. The current study investigated whether prefrontal cognition varies with COMT genotype. Val158Met was genotyped in 73 healthy volunteers. A task of prefrontal cognition, the Wisconsin Card Sorting Test, was also administered. Subjects with only the low-activity met allele made significantly fewer perseverative errors on the Wisconsin Card Sorting Test than did subjects with the val allele. These data are consistent with those of previous studies, suggesting that a functional genetic polymorphism may influence prefrontal cognition.

Associated Clinical Trials

Citations

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