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  • Title: Crohn's disease is associated with polymorphism of CARD15/NOD2 gene in a Hungarian population.
    Author: Nagy Z, Karádi O, Rumi G, Rumi G, Pár A, Mózsik G, Czirják L, Süto G.
    Journal: Ann N Y Acad Sci; 2005 Jun; 1051():45-51. PubMed ID: 16126943.
    Abstract:
    Crohn's disease (CD) is commonly classified as an immune-mediated disorder, but genetic and environmental factors seem to be important in its pathogenesis. Mutations within the CARD15/NOD2 gene have been associated with CD in the Caucasian population. The aim of our work was to investigate the allele frequency and clinical impact of the three common mutations in Hungarian CD patients and healthy controls. Seventy-four CD patients and 107 controls were examined. The genotyping of the three common CARD15/NOD2 mutations (Arg702Trp, Gly908Arg, and Leu1007fsinsC) was carried out by restriction fragment length polymorphism (RFLP) and amplification refractory mutation system (ARMS) techniques. The demographic and clinical parameters were correlated with chi(2) analysis. The overall prevalence of CARD15/NOD2 mutations in the Hungarian CD patients (33.78%) was significantly higher than in healthy control individuals (16.23%) (P < 0.025). The allele frequency of the Gly908Arg mutation did not differ, but the Arg702Trp and Leu1007fsinsC mutation were more common in CD patients than in controls. The onset of CD occurs about three years earlier in CARD15/NOD2 carriers. Carriage of the Arg702Trp and Leu1007fsinsC allele within the CARD15/NOD2 gene is associated with CD. These data are in line with similar findings showing a role of the CARD15/NOD2 protein in the etiopathogenesis of CD. The genotyping of these mutations might be used to identify high-risk patients.
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