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See detailFamilial Crohn's Disease: A Study of 18 Families
Franchimont, D.; Belaiche, Jacques ULg; Louis, Edouard ULg et al

in Acta Gastro-Enterologica Belgica (1997), 60(2, Apr-Jun), 134-7

The high frequency of familial Crohn's disease (CD) suggests a genetic predisposition. The most recent data from epidemiology and molecular biology are consistent with a multifactorial, polygenic ... [more ▼]

The high frequency of familial Crohn's disease (CD) suggests a genetic predisposition. The most recent data from epidemiology and molecular biology are consistent with a multifactorial, polygenic inheritance with a possible genetic heterogeneity. The aim of our study was, first to compare familial and sporadic CD on the basis of the type and location of the disease, and age at diagnosis, and second, to evaluate among families, the concordance rate for the type and location of the disease. PATIENTS AND METHODS: 18 families with 2 (n = 16) and 3 (n = 2) affected first degree relatives were studied. They were compared to a population of 154 sporadic CD coming from the same gastroenterology unit. RESULTS: Age at diagnosis was the same in sporadic and familial CD. There was an increased frequency of ileal (p = 0.02), and fibro stenotic (p = 0.005) CD and a decreased frequency of colonic (p = 0.006) and inflammatory (p = 0.02) disease, in familial CD. There was a significant increase in concordance rate for fibrostenotic disease (p < 0.001) and a decrease for inflammatory disease (p < 0.01), among the families. The observed concordance rate for the location of the disease was not significantly different from the expected one. In conclusion, these data suggest that CD may be heterogenous and that different clinical patterns may be determined either by genetic or environmental factors. [less ▲]

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See detailIntestinal Permeability in Crohn's Disease
Franchimont, D.; Louis, Edouard ULg; Simon, Sarah ULg et al

in Acta Gastro-Enterologica Belgica (1996), 59(1, Jan-Mar), 15-9

We summarize the anatomical and physiological basis and the ways of measuring the intestinal permeability. We review the studies of the intestinal permeability in Crohn's disease. We analyse the ... [more ▼]

We summarize the anatomical and physiological basis and the ways of measuring the intestinal permeability. We review the studies of the intestinal permeability in Crohn's disease. We analyse the involvement of an abnormal intestinal permeability in the pathogenesis of Crohn's disease, as a primary or secondary defect. We discuss the potential usefulness of the measure of intestinal permeability in Crohn's disease activity assessment, relapse prediction and efficacy of treatment. [less ▲]

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