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Status: Bibliographieeintrag

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Verfasst von:Jern, Patrick [VerfasserIn]   i
 Rietschel, Marcella [VerfasserIn]   i
Titel:Preliminary evidence for an association between variants of the Catechol-O-Methyltransferase (COMT) gene and premature ejaculation
Verf.angabe:Patrick Jern, Ada Johansson, Jana Strohmaier, Jens Treutlein, Juhana Piha, Marcella Rietschel
E-Jahr:2017
Jahr:1 December 2017
Umfang:8 S.
Fussnoten:Gesehen am 05.06.2018
Titel Quelle:Enthalten in: The journal of sexual medicine
Ort Quelle:Oxford : Oxford University Press, 2004
Jahr Quelle:2017
Band/Heft Quelle:14(2017), 12, Seite 1558-1565
ISSN Quelle:1743-6109
Abstract:Background: Studies have suggested that dopamine plays a role in the neurobiological mechanism that triggers ejaculation, leading scientists to hypothesize that dopamine-related genetic polymorphisms could contribute to symptoms of premature ejaculation (PE). Aim: To investigate associations between dopamine receptor and catechol-O-methyltransferase (COMT; an enzyme involved in the catabolism of dopamine) gene-linked polymorphisms and PE. Methods: PE status in patient groups was determined by clinical diagnosis performed by a physician specializing in sexual medicine. Self-reported PE symptoms from a validated questionnaire also were reported. Saliva samples were collected from 149 patients with PE and 1,022 controls from a population-based sample. In total, we tested associations between PE and 11 single-nucleotide polymorphisms in the dopamine receptor D1, D2, and D3 genes and in the COMT gene. Outcomes: We found no associations between dopamine receptor gene polymorphisms and PE, but 2 COMT-linked loci (rs4680 and rs4818) had significant associations after correction for multiple testing. Results: 1 COMT gene-linked locus that was associated with PE symptoms in the present study, rs4680, is a well-documented functional polymorphism that causes a valine-to-methionine substitution. The other polymorphism, rs4818, is in high linkage disequilibrium with the rs4680 locus, indicating that they capture the same effect. Surprisingly, the rs4680 variant that was statistically significantly more prevalent in the PE group (ie, the valine-encoding allele) has been associated with higher enzymatic activity and therefore lower synaptic dopamine levels. Clinical Translation: Drugs targeting the dopaminergic system could affect PE symptoms. Strengths and Limitations: No replication sample was available for the present study; thus, our findings should be interpreted with caution. Moreover, a limitation of our study is the small sample in the context of genetic association studies (although it should be mentioned that genetically informative samples with phenotypic information about PE symptoms are scarce, and most previous genetic association studies of PE have used samples of similar or smaller size). However, our results are plausible: we report an association between one of the most extensively studied and understood genetic polymorphisms in psychiatric research and PE, and our results are in line with the long-standing hypothesis that dopamine influences human ejaculatory function. Conclusions: We report an association between 2 COMT gene-linked loci and PE symptoms, but our results should be treated with caution until independently replicated. Jern P, Johansson A, Strohmaier J, et al. Preliminary Evidence for an Association Between Variants of the Catechol-O-Methyltransferase (COMT) Gene and Premature Ejaculation. J Sex Med 2017;14:1558-1565.
DOI:doi:10.1016/j.jsxm.2017.11.002
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: http://dx.doi.org/10.1016/j.jsxm.2017.11.002
 Volltext: http://www.sciencedirect.com/science/article/pii/S1743609517315436
 DOI: https://doi.org/10.1016/j.jsxm.2017.11.002
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Association Study
 Dopamine
 Gene
 Premature Ejaculation
K10plus-PPN:1576016595
Verknüpfungen:→ Zeitschrift

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