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Biomedical subjects

L V Degtiareva

Publications and source records attributed to L V Degtiareva.

At least 19 recordsLinked to original sources

[Structural changes in the stomach, duodenum and pancreas in ischemic heart disease].

The authors carried out a morphological, histochemical and morphometric study of the gastric mucosa, duodenum and pancreas in 22 cadavers of patients who suffered of chronic ischemic heart disease. It was established that patients with chronic ischemic heart disease develop dystrophic, atrophic, sclerotic and compensatory-adaptative changes that may lead to marked structural-functional reorganization of the tissues. The morphological basis of trophic disorders are pronounced disturbances of the intramural microcirculatory bed. Changes were revealed of the morphology of the insular apparatus of the pancreas evidencing inclusion of the endocrinous component in the pathogenesis of chronic ischemic heart disease.

Aged↗

[Changes in the intraorganic blood vessels of the stomach and duodenum in peptic ulcer].

It was established that the ulceration zones showed hyperemia which increases the volume density of venous vessels, disturbs the permeability of their walls, causes trophic disorders with subsequent phlebosclerosis, limitation of capacitance, appearance of venous hypertension and further changes of the vessel wall structures and neighbouring tissues. Compensatory reaction of the arterial intraorganic bed (vascular spasm) deteriorates trophic disorders. Simultaneous increase of the volume density of arterial vessels in the "intact" zone favours reparative and compensatory capacities of the latter. Repeat ulcer formation and chronic course of the disease furthers development of hemo- and microcirculatory disorders, progressing of angio- and perivascular sclerosis, reorganization of the intramural gastric and duodenal vascular bed.

Acute Disease↗

[The rapid diagnosis of salmonellosis by a determination of the antigen in the biosubstrates of patients using the coagglutination reaction].

The diagnostic potential of the coagglutination test was checked with the aim of improving the laboratory diagnosis of Salmonella infections by the detection of Salmonella specific antigen in different biological materials (feces, urine, saliva and immune complexes in blood sera). The study of all specimens resulted in the confirmation of the diagnosis in 78% of patients, often during the first days of the disease. The proportion of nonspecific reactions, as shown in the control groups of healthy donors and patients with dysentery and other acute enteric infections, did not exceed 5%.

Adolescent↗

[Colitic variant of the gastrointestinal form of salmonellosis].

Of 3327 hospitalized patients with salmonellosis, a clinical picture of isolated distal colitis was noted in 142 (4.3%). Acute dysentery was diagnosed in them before the results of bacteriological stool examination were ready. In this variant of salmonellosis S. enteritidis and S. haifa were detected twice as more frequently than in the other variants. As compared to dysentery, the colitic variant of salmonellosis was characterized by more marked intoxication syndrome whereas stomach pains were less spasmodic, less frequently localized in the sigmoid colon; important symptoms for differential diagnosis like tenesmus, false rectal tenesmus, pains and spasms of the sigmoid colon were less frequently noted. Therefore this type of salmonellosis should be included in the clinical classification of salmonellosis of adults on the basis of an obvious clinical picture.

Acute Disease↗

[Epizootic significance of white-toothed shrews in the natural focus of steppe type tularemia in the Stavropol' region].

The observations indicate that anthropogenic activities cause structural changes with time among tularemia pathogen carriers in the microfocus. The epizootic and epidemic values of animal species, such as dwarf hamsters and house mice, decrease while those of insect-eating animals, namely white-toothed shrews that refer to Group II increase, in terms of tularemia infection susceptibility. In white-toothed shrews, tularemia infection rates are 4-6-times greater than those in other small mammals that refer to Group I.

Animals↗