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Association between the COMT Val158Met polymorphism and propensity to anxiety in an Australian population-based longitudinal study of adolescent health
journal contribution
posted on 2005-06-01, 00:00 authored by Craig OlssonCraig Olsson, R Anney, M Lofti-Miri, G Byrnes, R Williamson, G PattonObjectives: Catechol-O-methyltransferase plays a central role in the metabolism of biogenic amines such as norepinephrine, dopamine and serotonin. Functional studies have demonstrated a dose relationship between Val158Met genotypes and catechol-O-methyltransferase activity. Compared with the Val158Val genotype, the Val158Met and Met158Met genotypes result in two- and four-fold reductions in catechol-O-methyltransferase activity, respectively. Two recent reports have observed the association between the Met158Met genotype and risk of anxiety in adult populations. We examined the association between the Val158Met genotypes and propensity to anxiety across adolescence.
Methods: Participants were drawn from an eight-wave study of the mental and behavioural health of over 2000 young Australians followed from 14 to 24 years of age (Victorian Adolescent Health Cohort Study, 1992 to present). DNA was received from 962 participants using a cheek swab collection method.
Results: The odds of reporting persistent episodic anxiety (phobic avoidance, panic attacks) were doubled among carriers of the Met158Met genotype (odds ratio 2.0, 95% confidence interval 1.1-3.4, P=0.014). A dose relationship between additional copies of the Met158 allele and persistent episodic anxiety was also observed (1.5, 1.1-1.94, P=0.007). Stratification by sex showed that the risk effect of the Met158 allele was among females only. No association was observed for measures of neuroticism, persistent generalized anxiety, or a composite measure of psychiatric distress.
Conclusion: These data replicate previous findings suggesting association between the Val158Met polymorphism and specific expressions of anxiety among females.
Methods: Participants were drawn from an eight-wave study of the mental and behavioural health of over 2000 young Australians followed from 14 to 24 years of age (Victorian Adolescent Health Cohort Study, 1992 to present). DNA was received from 962 participants using a cheek swab collection method.
Results: The odds of reporting persistent episodic anxiety (phobic avoidance, panic attacks) were doubled among carriers of the Met158Met genotype (odds ratio 2.0, 95% confidence interval 1.1-3.4, P=0.014). A dose relationship between additional copies of the Met158 allele and persistent episodic anxiety was also observed (1.5, 1.1-1.94, P=0.007). Stratification by sex showed that the risk effect of the Met158 allele was among females only. No association was observed for measures of neuroticism, persistent generalized anxiety, or a composite measure of psychiatric distress.
Conclusion: These data replicate previous findings suggesting association between the Val158Met polymorphism and specific expressions of anxiety among females.
History
Journal
Psychiatric geneticsVolume
15Issue
2Pagination
109 - 115Publisher
Lippincott Williams & WilkinsLocation
Philadelphia, Pa.Publisher DOI
ISSN
0955-8829eISSN
1473-5873Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2005, Lippincott Williams & Wilkins, Inc.Usage metrics
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Keywords
adolescentanxietydepressionneuroticismcatechol-O-methyltransferasepopulation samplelongitudinal designScience & TechnologyLife Sciences & BiomedicineGenetics & HeredityNeurosciencesNeurosciences & NeurologyBIPOLAR DISORDERFUNCTIONAL POLYMORPHISMSEROTONIN TRANSPORTERGENEGENOTYPEPHARMACOGENETICSRISKGenetics
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