2007
DOI: 10.1016/j.pscychresns.2007.01.005
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The COMT Val158Met polymorphism and temporal lobe morphometry in healthy adults

Abstract: We examined the relationship between COMT Val158Met genotype and temporal lobe volumes, including the caudate as a control region. 31 healthy subjects completed 1.5T brain MRI and genotyping. After controlling for demographics, Val158 allele homozygotes exhibited significantly smaller temporal lobe and hippocampal volumes, with a trend for smaller amygdala volumes.

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Cited by 59 publications
(51 citation statements)
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“…Interestingly, this association has not been found in studies that included patients with any psychosis, 79,80,83 indicating that the association may be specific to schizophrenia. In healthy individuals, smaller hippocampal, 9,78,81,82 amygdalar, 9 total and grey matter temporal lobe 82 volumes as well as reduced thickness of the right superior temporal sulcus 77 have been reported in Val/Val carriers. In contrast, other studies have failed to find a significant association between the COMT Val 158 Met polymorphism and temporal lobe volumes in healthy individuals or in unaffected relatives of patients with psychosis.…”
Section: Temporal Regionsmentioning
confidence: 97%
“…Interestingly, this association has not been found in studies that included patients with any psychosis, 79,80,83 indicating that the association may be specific to schizophrenia. In healthy individuals, smaller hippocampal, 9,78,81,82 amygdalar, 9 total and grey matter temporal lobe 82 volumes as well as reduced thickness of the right superior temporal sulcus 77 have been reported in Val/Val carriers. In contrast, other studies have failed to find a significant association between the COMT Val 158 Met polymorphism and temporal lobe volumes in healthy individuals or in unaffected relatives of patients with psychosis.…”
Section: Temporal Regionsmentioning
confidence: 97%
“…Genetic factors are also important in determining cortical architecture (Thompson et al, 2001;Lenroot et al, 2007). Common polymorphisms such as the catechol-O-methyltransferase Val158Met polymorphism, a single nucleotide polymorphism in the regulator of G-protein signaling 4 gene, and a promoter region polymorphism of the serotonin transporter gene (5-HTTLPR) have all been found to have some influence on cortical volume, thickness or complexity (Brown and Hariri, 2006;Meyer-Lindenberg et al, 2006;Zinkstok et al, 2006;Buckholtz et al, 2007;Taylor et al, 2007). Of particular interest are genes that both contribute to both cortical growth and complexity and appear to be under positive selection in primate evolution, particularly in lineages leading to modern humans (Gilbert et al, 2005).…”
Section: Environmental and Genetic Effects On Growth Trajectoriesmentioning
confidence: 99%
“…24 Importantly, COMT is highly expressed in the hippocampus. 25,26 Recent studies of healthy individuals suggest that Val carriers have smaller hippocampal volumes than Met carriers, 27,28 possibly owing to alterations in the neural correlates of memory function.…”
Section: J Psychiatry Neurosci 2017;42(2)mentioning
confidence: 99%