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ASSOCIATION STUDY OF IL10, IL1BETA, AND IL1RN AND SCHIZOPHRENIA USING TAG SNPs FROM A COMPREHENSIVE DATABASE: SUGGESTIVE ASSOCIATION WITH rs16944 AT il1BETA

Schizophr Res 88 (1-3):235-244, 2006

Shirts BH, Wood J, Yolken RH, Nimgaonkar VL

Department of Psychiatry, University of Pittsburgh School of Medicine, Western Psychiatric Institute and Clinic, 3811 O’Hara Street, Pittsburgh, Pennsylvania 15213, USA

ABSTRACT:

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 IL1beta, 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 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 (IL1beta – 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).

 

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