TITLE

CARD15Mutations in Patients With Crohn's Disease in a Homogeneous Spanish Population

AUTHOR(S)
Núñez, Concepción; Barreiro, Manuel; Dom&ínguez-Muñoz, J. Enrique; Lorenzo, Aurelio; Zapata, Carlos; Peña, A. Salvador
PUB. DATE
March 2004
SOURCE
American Journal of Gastroenterology;Mar2004, Vol. 99 Issue 3, p450
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
OBJECTIVES: Three mutations inCARD15have been repeatedly shown to be involved in Crohn's disease susceptibility, mainly in Caucasian individuals. However, those findings were not replicated in all populations studied so far. In this work, we studied the role ofCARD15mutations in a relatively homogeneous population from the Northwest of Spain, Galicia.METHODS: One hundred and sixty-five patients with Crohn's disease and a similar number of healthy controls were recruited from a single center in Galicia. All individuals were genotyped for the three main Crohn's disease associatedCARD15variants (R702W, G908R, and 1007fs). Association analyses were performed to study the influence of those mutations on Crohn's disease overall and on clinical subphenotypes.RESULTS: The allele frequencies ofCARD15variants were lower in this population than in most of the European populations studied so far. G908R and 1007fs were significantly associated with overall susceptibility to Crohn's disease. However, these associations were lost after stratification to clinical subgroups, probably due to the small number of cases in these subgroups. Significant associations were found between G908R and 1007fs and the behavior of Crohn's disease, but they were due to the influence of years of disease on the behavior of the disease rather than being the result of a direct effect of these mutations on disease behavior.CONCLUSIONS: TheCARD15variants G908R and 1007fs, but not R702W, are associated with susceptibility to Crohn's disease in Galicia. Interestingly, the frequency of these mutations appears to be lower than in other Caucasian populations studied so far.
ACCESSION #
14816785

 

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