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Revista Brasileira de Psiquiatria

versão impressa ISSN 1516-4446versão On-line ISSN 1809-452X

Resumo

CORDEIRO, Quirino et al. Association study between the -62A/T NFKBIL1 polymorphism and obsessive-compulsive disorder. Rev. Bras. Psiquiatr. [online]. 2009, vol.31, n.2, pp.131-135. ISSN 1516-4446.  http://dx.doi.org/10.1590/S1516-44462009000200009.

OBJECTIVE: Evidence from family and molecular genetic studies support the hypothesis of involvement of immunologic mechanisms in the pathophysiology of obsessive-compulsive disorder. The nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor-like 1 (NFKBIL1) has been suggested as a modulator of the immunological system. Given the importance of NFKBIL1 in the immunological response, the present study investigated the -62A/T polymorphism (rs2071592), located in the promoter region of its gene (NFKBIL1), as a genetic risk factor for the development of obsessive-compulsive disorder. METHOD: The -62A/T NFKBIL1 polymorphism was investigated in a sample of 111 patients who met DSM-IV criteria for obsessive-compulsive disorder and 272 healthy age- and gender-matched controls. RESULTS: There were no differences in genotypic distributions between patients and controls (χ2 = 0.98; 2 d.f.; p = 0.61). DISCUSSION: Despite these negative findings, more comprehensive polymorphism coverage within the NFKBIL1 is warranted in larger samples. Populations with different ethnic backgrounds should also be studied. CONCLUSION: The results of the present investigation do not provide evidence for the association between the -62A/T NFKBIL1 polymorphism and obsessive-compulsive disorder in this Brazilian sample.

Palavras-chave : Case-control studies; Patients; Polymorphism genetic; Immune system diseases; Obsessive-compulsive disorder.

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