[The immunomorphology of the mucosa of the bronchi and gastroduodenal zone in children with combined disease of the bronchi and gastrointestinal tract]. / Immunomorfologiia slizistoi obolochki bronkhov i gastroduodenal'noi zony u detei pri sochetannom zabolevanii bronkhov i zheluduchno-kishechnogo trakta.

Mucous membrane of the bronchi, antral zone of the stomach and duodenum were studied histologically, morphometrically, immunohistochemically and bacterioscopically in 47 children of 5 to 14 years of age with bronchial asthma (16 patients), obstructive bronchitis (12 patients), chronic pneumonia or chronic nonspecific bronchitis (19 patients). All these children had also gastroduodenitis. There was an increase of local production of IgE and enhanced degranulation of mast cells in bronchial mucosa and gastroduodenal zone in children with bronchial asthma and obstructive bronchitis. The proportion of CD4+/CD8+ decreased to 0.92 in bronchial asthma. Gastritis was associated much more frequently with Helicobacter pylori in children with chronic obstructive bronchitis and bronchial asthma.

[The age-related characteristics of the immune reaction of the mucosa of the gastric antrum in chronic gastritis]. / Vozrastnye osobennosti immunnoi reaktsii slizistoi obolochki antral'nogo otdela zheludka pri khronicheskom gastrite.

Stomach biopsies from 16 adult patients at the age from 18 to 55 years, 16 adults of 56-68 years and 23 children were studied histologically, immunohistochemically and morphometrically. The frequency of Helicobacter pylori findings was dependent on the age. Local production of IgM and IgG was higher in the adults of young and mature age. Number of IgA producing cells decreased and that of IgG producing cells sharply increased in the aged persons; in this category also was increased the number of intraepithelial lymphocytes and of T-lymphocytes relating to the subpopulation of suppressor cytotoxic cells.

[Morphometrics and immunohistochemical characteristics of chronic gastroduodenitis in adolescents]. / Morfometricheskaia i immunogistokhimicheskaia kharakteristika khronicheskogo gastroduodenita u podrostkov.

Mucous membrane of the antral region of the stomach and that of duodenum were studied in 36 teenagers, 21 of them had erosions revealed endoscopically and histologically. Morphometric indices of the inflammation were more pronounced when erosions were present; the latter did not influence the local production of IgA, IgM and IgG. The content of IgG was particularly high. Contamination with Helicobacter pylori was found in all cases and was more pronounced in erosive gastroduodenitis. High frequency of lymphoid follicles formation was found, particularly in the antrum.

[Clinico-endoscopic and morphometric characteristics of gastric and duodenal mucosa in children with dermatomyositis]. / Kliniko-éndoskopicheskaia i morfometricheskaia kharakteristika slizistoi obolochki zheludka i dvenadtsatiperstnoi kishki u detei s dermatomiozitom.

A total of 53 patients with dermatomyositis aged 4-14 with the disease duration of three months to eight years were under observation. Twenty seven patients complained of stomach-ache, II felt pain during palpation, 30 lost appetite. Electrogastrography revealed disorders in bioelectric activity of the stomach muscles in 99.9% of the patients. Endoscopic studies revealed lesions in the stomach and duodenum in all the patients, in 39 of them gastroduodenitis in the stage of exacerbation was diagnosed, in 7 erosion, in 3 peptic and duodenal ulcer. In 81.3% of the children during clinico-laboratory remission of dermatomyositis gastroduodenitis persisted at the stage of exacerbation. The vessels lying in the mucosa of the antral area of the stomach and duodenum underwent peculiar changes: arterial walls looked thickened, nuclei of the endothelial cells were enlarged, rounded up. One could observe infiltrates around the vessels consisting mainly of lymphocytes. Morphometric indices of the mucosa were also different in the antral area of the stomach and duodenum. Apparently, changes revealed in the gastric and duodenal mucosa of children with dermatomyositis occur due to vascular processes developing as a result of the main disease. This should be taken into consideration in the treatment of such children.

[The morphometric and immunohistochemical characteristics of the gastric and duodenal mucosa in systemic lupus erythematosus]. / Morfometricheskie i immunogistokhimicheskie osobennosti slizistoi obolochki zheludka i dvenadtsatiperstnoi kishki pri sistemnoi krasnoi volchanke.

Histological, morphometric, and immunohistochemical studies of biopsy specimens from the mucosa of the body and antral portion of the stomach, the bulb and descending portion of the duodenum were performed in 27 children with systemic lupus erythematosis (SLE) and in 12 with chronic gastroduodenitis. The inflammatory infiltrate from SLE patients was found to contain higher levels of young and mature fibroblasts than that from patients with chronic gastroduodenitis, mature fibroblasts being prevalent. The inflammatory changes in the gastric and duodenal mucosa were ascertained to be associated with the progression of SLE. In exacerbation of SLE, the walls of vessels (arterioles) exhibited immune complexes classified mainly as IgG and, to a lesser degree, as IgM. In remission, the luminescence of the vessels decreased. The serum level of immunoglobins did not correlate with their regional production in the gastric and duodenal mucosa.