Journal
SCHIZOPHRENIA RESEARCH
Volume 88, Issue 1-3, Pages 235-244Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.schres.2006.06.037
Keywords
interleukin; candidate gene; meta-analysis; virus; IL-1beta-511; IL1RA; cytokine
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Funding
- NIMH NIH HHS [MH074265, MH56242] Funding Source: Medline
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Genetic association studies of several candidate cytokine genes have been motivated by evidence of immune dysfunction among patients with schizophrenia. Intriguing but inconsistent associations have been reported with polymorphisms of three positional candidate genes, namely IL1 beta, IL1RN, and IL10. We used comprehensive sequencing data from the Seattle SNPs database to select tag SNPs that represent all common polymorphisms in the Caucasian population at these loci. Associations with 28 tag SNPs were evaluated in 478 cases and 501 unscreened control individuals, while accounting for population sub-structure using the genomic control method. The samples were also stratified by gender, diagnostic category, and exposure to infectious agents. Significant association was not detected after correcting for multiple comparisons. However, meta-analysis of our data combined with previously published association studies of rs16944 (IL1 beta-511) suggests that the C allele confers modest risk for schizophrenia among individuals reporting Caucasian ancestry, but not Asians (Caucasians, n=819 cases, 1292 controls; p=0.0013, OR=1.24, 95% CI 1.09, 1.41). (c) 2006 Elsevier B.V. All rights reserved.
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