Context: Polymorphisms of the serotonin transporter gene (SERT) have been associated with mental illness. In people with long-term medical conditions, variants of the 5-HTTLPR and STin2 VNTR polymorphisms of SERT have been shown to confer a heightened vulnerability to comorbid depression. Objective: To determine whether the 5-HTTLPR, STin2 VNTR, and rs25531 polymorphisms of SERT are associated with poststroke depression (PSD) in stroke survivors. Design: A case-control study in which stroke survivors were screened for depressive symptoms and assigned to either a depressed group or a nondepressed group. Setting: Outpatient clinic. Participants: Seventy-five stroke survivors with PSD and 75 nondepressed stroke survivors. Interventions: Blood or saliva samples were collected from each participant for DNA extraction and genotyping. Main Outcome Measures: The associations between the 5-HTTLPR, STin2 VNTR, and rs25531 polymorphisms and PSD. Results: Individuals with the 5-HTTLPR s/s genotype had 3-fold higher odds of PSD compared with l/l or l/xl genotype carriers (odds ratio, 3.1; 95% confidence interval, 1.2-8.3). Participants with the STin2 9/12 or 12/12 genotype had 4-fold higher odds of PSD compared with STin2 10/10 genotype carriers (odds ratio, 4.1; 95% confidence interval, 1.2-13.6). An association of rs25531 with PSD was not shown. Conclusions: The 5-HTTLPR and the STin2 VNTR, but not the rs25531, polymorphisms of SERT are associated with PSD in stroke survivors. This gives further evidence of a role of SERT polymorphisms in mediating resilience to biopsychosocial stress. ©2008 American Medical Association. All rights reserved.
CITATION STYLE
R., K., K.C., C., P.H., M., K., B., A., B., S.P., M., … D., T. (2008). Association of serotonin transporter gene polymorphisms with poststroke depression. Archives of General Psychiatry. R. Kohen, GRECC(S-182), Veterans Affairs Puget Sound Health Care System, 1660 S Columbian Way, Seattle, WA 98108, United States. E-mail: ruko@u.washington.edu: American Medical Association (515 North State Street, Chicago IL 60654, United States). Retrieved from http://archpsyc.ama-assn.org/cgi/reprint/65/11/1296
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