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SERT and NET polymorphisms, temperament and antidepressant response
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2015 (Engelska)Ingår i: Nordic Journal of Psychiatry, ISSN 0803-9488, E-ISSN 1502-4725, Vol. 69, nr 7, s. 531-538Artikel i tidskrift (Refereegranskat) Published
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Abstract [en]

Background: The genetic variations in norepinephrine transporter (NET) and serotonin transporter (SERT) genes have been associated with personality traits, several psychiatric disorders and the efficacy of antidepressant treatment. Aims: We investigated the separate effects and possible interactions between NET T-182C (rs2242446) and SERT 5-HTTLPR (rs4795541) polymorphisms on selective serotonin reuptake inhibitors (SSRI) treatment response and temperamental traits assessed by the Temperament and Character Inventory (TCI) in a clinical sample of subjects with major depressive disorder (MDD). Methods: Our sample of 97 patients with major depression completed the 107-item TCI temperament questionnaire (version IX) at the initial assessment of the study and after 6 weeks of follow-up. All subjects received selective SSRI medications. Temperament dimension scores at baseline (1) and endpoint (2) during antidepressant treatment were analyzed between NET and SERT genotypes. Results: SS-genotype of 5-HTTLPR was associated with higher baseline Persistence scores than SL- or LL-genotype. A corresponding but weaker association was found at endpoint. No differences were found between 5-HTTLPR genotypes and other temperament dimensions and 5-HTTLPR genotypes had no effect on treatment response. Conclusions: Our results suggest that the SS-genotype of 5-HTTLPR is associated with Persistence scores in patients with MDD. Higher Persistence could be viewed as a negative trait when recovering from stress and its association with short and "weaker" S-allele may be related to less efficient serotonin neurotransmission, possibly resulting in less effective coping strategies on a behavioral level.

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2015. Vol. 69, nr 7, s. 531-538
Nyckelord [en]
Antidepressant treatment, Depression, NET, SERT, Temperament
Nationell ämneskategori
Medicinsk bioteknologi (med inriktning mot cellbiologi (inklusive stamcellsbiologi), molekylärbiologi, mikrobiologi, biokemi eller biofarmaci)
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URN: urn:nbn:se:umu:diva-117874DOI: 10.3109/08039488.2015.1012554ISI: 000369972000006PubMedID: 25739526OAI: oai:DiVA.org:umu-117874DiVA, id: diva2:912109
Tillgänglig från: 2016-03-15 Skapad: 2016-03-04 Senast uppdaterad: 2018-06-07Bibliografiskt granskad

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Haraldsson, Susann

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Haraldsson, Susann
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Institutionen för medicinsk biovetenskap
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Nordic Journal of Psychiatry
Medicinsk bioteknologi (med inriktning mot cellbiologi (inklusive stamcellsbiologi), molekylärbiologi, mikrobiologi, biokemi eller biofarmaci)

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