[Measurements of salivary lysozyme activity].

A new method for measuring salivary lysozyme is proposed, which is based on lysozyme capacity to lyze glycosaminoglycanes and proteoglycanes in plasma membranes of Micrococcus lysodeikticus. Specific activity of the enzyme is identified from the amount of protein in glycosaminoglycanes and proteoglycanes. The quantity of glycosaminoglycanes and proteoglycanes containing 0.

[Value of the study of various erythrocyte enzymes in determining the nature of cerebral stroke in the acute period].

Activities of catalase, superoxide dismutase, glyceraldehyde phosphatedehydrogenase and glucose-6-phosphate dehydrogenase implicated in the process of hemoglobin oxygenation were studied and compared in 40 patients with ischemic and in 30 patients with hemorrhagic brain strokes in the most acute disease period (days 1-2). A well-defined relationship was revealed between the brain stroke pattern and enzymatic activity which is likely to be determined by varying degree of body adaptation under hypoxia developing in ischemic and hemorrhagic brain strokes. It is assumed that the clinico-enzymatic correlations discovered might be employed as additional criteria in the differential diagnosis of the brain stroke pattern.

[Substantiation of the use of pepsidil in secretory insufficiency of the digestive glands caused by antitubercular drugs].

The experiments on rats were undertaken to study the action of pepsidil to make up for the biosynthesis deficiency of digestive enzymes in the stomach and pancreas caused by antituberculous drugs (methazide + PAS, isoniazid + PAS, isoniazid + rifampicin + ethambutol). It was proved that pepsidil reduced an inhibiting action of antituberculous drugs on the activity of gastroenteric tract proteinases. The given condition should be taken into account when antituberculous treatment is conducted.

[Determination of the erythrocyte count using a microcolorimeter].

Red cell count is estimated with the use of a MKMF-1 microcolorimeter. 10 ml of Gower's solution are used; 0.02 ml of blood are added to this solution.