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Effect of Catechol-O-methyltransferase Val158met Genotype on Attentional Control

Overview
Journal J Neurosci
Specialty Neurology
Date 2005 May 20
PMID 15901785
Citations 119
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Abstract

The cingulate cortex is richly innervated by dopaminergic projections and plays a critical role in attentional control (AC). Evidence indicates that dopamine enhances the neurophysiological signal-to-noise ratio and that dopaminergic tone in the frontal cortex is critically dependent on catechol-O-methyltransferase (COMT). A functional polymorphism (val158met) in the COMT gene accounts for some of the individual variability in executive function mediated by the dorsolateral prefrontal cortex. We explored the effect of this genetic polymorphism on cingulate engagement during a novel AC task. We found that the COMT val158met polymorphism also affects the function of the cingulate during AC. Individuals homozygous for the high-activity valine ("val") allele show greater activity and poorer performance than val/methionine ("met") heterozygotes, who in turn show greater activity and poorer performance than individuals homozygous for the low-activity met allele, and these effects are most evident at the highest demand for AC. These results indicate that met allele load and presumably enhanced dopaminergic tone improve the "efficiency" of local circuit processing within the cingulate cortex and thereby its function during AC.

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References
1.
Callicott J, Mattay V, Bertolino A, Finn K, Coppola R, Frank J . Physiological characteristics of capacity constraints in working memory as revealed by functional MRI. Cereb Cortex. 1999; 9(1):20-6. DOI: 10.1093/cercor/9.1.20. View

2.
Livak K . Allelic discrimination using fluorogenic probes and the 5' nuclease assay. Genet Anal. 1999; 14(5-6):143-9. DOI: 10.1016/s1050-3862(98)00019-9. View

3.
Weinshilboum R, Otterness D, Szumlanski C . Methylation pharmacogenetics: catechol O-methyltransferase, thiopurine methyltransferase, and histamine N-methyltransferase. Annu Rev Pharmacol Toxicol. 1999; 39:19-52. DOI: 10.1146/annurev.pharmtox.39.1.19. View

4.
Karayiorgou M, Sobin C, Blundell M, Galke B, Malinova L, Goldberg P . Family-based association studies support a sexually dimorphic effect of COMT and MAOA on genetic susceptibility to obsessive-compulsive disorder. Biol Psychiatry. 1999; 45(9):1178-89. DOI: 10.1016/s0006-3223(98)00319-9. View

5.
Rypma B, DEsposito M . The roles of prefrontal brain regions in components of working memory: effects of memory load and individual differences. Proc Natl Acad Sci U S A. 1999; 96(11):6558-63. PMC: 26921. DOI: 10.1073/pnas.96.11.6558. View