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Allelic variants of dopamine receptor D4 (DRD4) and serotonin receptor 5HT2c (HTR2c) and temperament factors : replication tests

Kühn, K. U. and Meyer, K. and Nöthen, M. M. and Gänsicke, M. and Papassotiropoulos, A. and Maier, W.. (1999) Allelic variants of dopamine receptor D4 (DRD4) and serotonin receptor 5HT2c (HTR2c) and temperament factors : replication tests. American journal of medical genetics, Vol. 88, no. 2. pp. 168-172.

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Official URL: http://edoc.unibas.ch/dok/A5257231

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Abstract

The contribution of genetic factors to personality differences between individuals is evidenced by twin and adoption studies. Ebstein et al. [1996, 1997a, 1997b] reported an association between the long repeat allele of the dopamine D4-exon-III receptor polymorphism and the human personality dimension novelty seeking (NS), between the 5HT2c-ser-23 allele and reward dependence, and an interaction between both receptor polymorphisms and reward dependence. Subsequent replication tests mainly reported controversial results for the association between DRD4-exon-III long repeat and NS. We examined a homogeneous study population of 190 healthy male students of middle European descent, aged between 20 and 30 years using Cloninger's TPQ in order to replicate Ebstein's findings. Using a significance level of 1%, no association between the long repeat of the DRD4-exon-III polymorphism and NS and between the 5HT2c receptor polymorphism and reward dependence was found, but a significant interaction effect of DRD4 and 5HT2c receptor polymorphisms on reward dependence was observed in accordance to Ebstein's report.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Services Biozentrum > Life Sciences Training Facility (Papassotiropoulos)
07 Faculty of Psychology > Departement Psychologie > Forschungsbereich Klinische Psychologie und Neurowissenschaften > Molecular Psychology (Papassotiropoulos)
UniBasel Contributors:Papassotiropoulos, Andreas
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Wiley-Liss
ISSN:0148-7299
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:23
Deposited On:22 Mar 2012 13:37

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