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[Intestinal immunity system and alimentary allergy (author's transl)].

Thirty seven intestinal biopsies from twenty-one food-allergic and sixteen control children were studied by immunofluorescence and the density of IgA, IgM, IgG and IgE forming cells (F.C.) in the lamina propria determined. In order to compare the results in allergic and normals the authors establish three age-groups: under 9 mo., 9 to 24 mo. and older than 24 mo. A higher density of IgM F.C. were found in allergic patients from the first group. Allergic children from all groups had more IgE F.C. but the figures were only significant for children older these two years. IgA F.C./IgE F.C. ratio was bover in allergic than in controls (p than less 0.02) after the age of 10 mo. Sone comments on these findings are made.