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  • Title: A family-based study does not confirm the association of MYO9B with celiac disease in the Italian population.
    Author: Giordano M, Marano C, Mellai M, Limongelli MG, Bolognesi E, Clerget-Darpoux F, Momigliano-Richiardi P, Greco L.
    Journal: Genes Immun; 2006 Oct; 7(7):606-8. PubMed ID: 16943798.
    Abstract:
    Association between Myosin IXB (MYO9B) gene polymorphisms and celiac disease (CD) was recently detected by a case-control association study in the Dutch, but not confirmed in the British and Swedish/Norwegian populations. We tested the association between CD and the three most associated single nucleotide polymorphisms (SNPs) in the Dutch study by the transmission disequilibrium test in the Italian population. A total of 252 pediatric patients and 504 parents were genotyped. No transmission distortion was detected either for the single SNPs or for their haplotypic combinations. Control allele frequencies, calculated from untransmitted alleles, were significantly different from those of the Dutch control population. Conversely, allele frequencies were very similar in Italian, British, Swedish/Norwegian and Dutch patients. In conclusion, MYO9B is not involved in CD susceptibility in the Italian population. The difference with the Dutch result might be explained by an imperfect selection of the Dutch controls.
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