作者: K. Miguita , E. Ikenaga , E. C. Miguel , H. Vallada , I. Meira-Lima
DOI: 10.1046/J.1601-1848.2003.0042.X
关键词:
摘要: Family and twin studies have supported a strong genetic factor in the etiology of obsessive-compulsive disorder (OCD), although precise mechanism inheritance is unclear. Clinical pharmacological implicated serotonergic dopaminergic systems disease pathogenesis. In this cross-sectional study, we examined allelic genotypic frequencies Val-158-Met substitution COMT gene, 44-base pair (bp) length variation regulatory region serotonin transporter gene (5-HTTLPR) T102C C516T variants receptor type 2A (5HT2A) 79 OCD patients 202 control subjects. There were no observed differences allele genotype between groups for COMT, 5HTTLPR 5HT2A polymorphisms. contrast, statistically significant difference controls was on distribution (χ2 = 16.7, 2df, P = 0.0002) (χ2 = 15.8, 1df, P = 0.00007) polymorphism. The results suggest that variant may be one risk factors our sample. However, further using larger samples family based methods are recommended to confirm these findings.