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  • Title: CARD15/NOD2 single nucleotide polymorphisms do not confer susceptibility to type I psoriasis.
    Author: Plant D, Lear J, Marsland A, Worthington J, Griffiths CE.
    Journal: Br J Dermatol; 2004 Sep; 151(3):675-8. PubMed ID: 15377357.
    Abstract:
    BACKGROUND: A psoriasis susceptibility locus on chromosome 16q was identified recently. This region coincides with a locus predisposing to Crohn's disease. Patients with Crohn's disease have a fivefold greater relative risk for development of psoriasis. In Crohn's disease mutation of the caspase recruitment domain family, member 15 (CARD15) gene (chromosome 16q12.1) confers susceptibility. In light of the overlap in linkage data, and the observation of comorbidity between Crohn's disease and psoriasis, it is plausible that both diseases share a common genetic factor. OBJECTIVES: To assess the genetic contribution of CARD15 single nucleotide polymorphisms (SNPs) in the pathogenesis of type I psoriasis. METHODS: Eight SNPs in CARD15 were genotyped in 148 patients with type I psoriasis and 192 unrelated controls, following a test for population stratification. Genotype and allele frequencies were compared along with estimated SNP haplotype frequencies. RESULTS: No differences were observed in genotype allele or haplotype frequencies between the case and control cohorts. CONCLUSIONS: The most complete assessment of CARD15 SNPs in type I psoriasis to date reveals no evidence of association to type I psoriasis.
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