Abstract:
BACKGROUND:Serotonin transporter-linked polymorphic region (5-HTTLPR) variants have been extensively studied in psychiatric disorders. Although gender effects have been reported, they have not been comprehensively reviewed. The aim of our study was to summarize literature findings on 5-HTTLPR and gender differences in affective disorders. METHODS:A systematic search of PubMed, ISI Web of Knowledge, and PsycINFO databases was performed for dates until January 2015. The included articles (n=78) analyzed the association between 5-HTTLPR and affective spectrum disorders, taking into account gender. The quality of each study was assessed through STROBE and CONSORT. RESULTS:5-HTTLPR modulation of affective disorders varied by gender. The S allele (or SS genotype) seemed to be differently associated with an increased risk of depression, depressive symptoms, anxiety traits and symptoms, and symptoms of internalizing behavior among women and an increased risk of aggressiveness, conduct disorder and symptom counts of externalizing behavior among men. Moreover, the presence of stressful life events reinforced the association. Interestingly, these differences seemed to begin with adolescence and were not consistent among the elderly, suggesting a plausible role of hormonal fluctuations. LIMITATIONS:The review is limited by the small number of included papers, due to the paucity of information in the literature regarding 5-HTTLPR and gender. CONCLUSIONS:5-HTTLPR variants may exert a differential modulation on a number of features depending on gender. Further studies are needed to more deeply investigate the effect of 5-HTTLPR×gender on the modulation of affective disorders.
journal_name
J Affect Disordjournal_title
Journal of affective disordersauthors
Gressier F,Calati R,Serretti Adoi
10.1016/j.jad.2015.09.027subject
Has Abstractpub_date
2016-01-15 00:00:00pages
193-207eissn
0165-0327issn
1573-2517pii
S0165-0327(15)30313-Xjournal_volume
190pub_type
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