[Secretory immunoglobulin A and pyloric helicobacteriosis in patients with duodenal ulcer].

57 patients with duodenum ulcer were examined. Secretory immunoglobulin A (SIgA) was determined by an immunofluorescent method in the gastric and duodenum mucosa depending on the population size of pyloric helicobacter (HB). The frequency of SIgA detection in the gastric mucosa depends on the HB population size: when it is considerable SIgA was not detected in 41% cases. SIgA was detected in the gastric mucosa without pathological lesions in 85% cases, in atrophic gastritis in 70% and in superficial gastritis in 54% cases.