Abstract
Dysbindin gene has been repeatedly associated with psychiatric disorders and schizophrenia in particular. This study aimed to investigate the variants of dysbindin gene in major depressive disorder (MDD). One hundred and eighty eight patients with MDD and 350 controls were investigated for 4 variants within the dysbindin gene (rs3213207 A/G, rs1011313 C/T, rs760761 C/T, and rs2619522 A/C). Haplotype analyses revealed a significant association with MDD ( p = 0.0007, protective A-C-T-A and A-C-C-C haplotypes), in particular the effect was due to the rs760761 (C/T) and rs2619522 (A/C) haplotype ( p = 0.000026). These results suggest a protective effect of some dysbindin gene haplotypes on the development of MDD. Coupled with previous findings on schizophrenia, our finding suggests that dysbindin gene variants may have a role in the susceptibility to MDD. Adequately powered further studies in different ethnic groups are warranted.
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