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Is 5-HTTLPR linked to the response of selective serotonin reuptake inhibitors in MDD?
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2011 (English)In: European Archives of Psychiatry and Clinical Neuroscience, ISSN 0940-1334, E-ISSN 1433-8491, Vol. 261, no 2, 95-102 p.Article in journal (Refereed) Published
Abstract [en]

The role of a functional polymorphism in the transcriptional control region of serotonin transporter gene (5-HTTLPR, SERTPR) has been studied intensively in major depression and in the response to selective serotonin inhibitors (SSRIs) in major depression. The findings have been contradictory, although majority of the studies indicate that the short allele is associated with poor response to SSRIs in major depression. In the present study, we evaluated the association of 5-HTTLPR with treatment response to SSRI medication in Finnish Caucasian MDD patients. A secondary purpose was to study the possible association of this particular polymorphism with major depressive disorder. The aim of the study was to replicate the previous findings in this area. Primary outcomes of the treatment were remission, defined by an exit score of seven or less, and response, defined by a reduction of at least 50% on the MADRS. We had also a control population of 375 healthy blood donors, as a secondary objective was to evaluate the possible association of this particular polymorphism with major depressive disorder. Twenty-nine of the 85 (34.1%) patients reached the remission and 58.8% achieved the predefined response criteria. The l/l genotype of 5-HTTLPR was presented in 51.7% of those patients who achieved remission vs. 25.0% in the non-remitters (P = 0.03). The result remained statistically significant after adjusting for age, gender, medication and MADRS points at the study entry. However, the small sample size limits the reliability of this result.

Place, publisher, year, edition, pages
2011. Vol. 261, no 2, 95-102 p.
Keyword [en]
Serotonin transporter, 5-HTTLPR, MDD, SSRI, Drug response
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URN: urn:nbn:se:umu:diva-104488DOI: 10.1007/s00406-010-0126-xISI: 000287859300003PubMedID: 20640435OAI: diva2:820817
Available from: 2015-06-12 Created: 2015-06-11 Last updated: 2015-06-12Bibliographically approved

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Haraldsson, SusannKoivisto, Pasi A.
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