[Circulation of the influenza A virus of H13 serosubtype among seagulls in the Northern Caspian (1979-1985)].

The results of seven-year ecologo-virological studies (1979-1985) of Laridae colonies on the island Zhemchuzhnyi, northern Kaspian Sea, showed annual isolation of influenza A viruses. Altogether, 95 hemagglutinating agent have been isolated. Strains with 4 different combinations of surface antigens were identified: H5N2, H13N2, H13N3, H13N6.

[Experimental study of the morphohistochemical changes in the liver during postoperative pulmonary hypertension].

In order to assess the morphohistochemical state of the liver after pulmonectomy the liver structure of 25 mature dogs was studied within 3 months after resection of one lung by a conventional method. The authors make a conclusion that changes in the liver resulting from extensive resection of one lung can be prevented by measures eliminating stagnation in the venous system of the large circulation circuit.

[Oxygen transport function of the blood in acute disorders of gas metabolism and of the acid-base state].

The oxygen-transport function of blood in hyperoxia and acute disturbances of the acid-alkali condition was studied in "oxygenator--desoxygenator" as a model. It has been established that in acidosis there occurs decreased intensity of glycolysis in erythrocytes, accumulation of 2,3 diphosphoglyceric acid which decreases affinity of hemoglobin for oxygen. It does not occur in alcalosis.

[Use of a membrane oxygenator for correcting acute, experimental respiratory insufficiency].

A model of acute respiratory insufficiency ARI was created in the experiments on 16 dogs by means of a valvular device furnishing a free inhalation and a limited expiration. The diaphragmatic oxigenator devised in VNIIP with an armoured diaphragm of "Sigma"--type was switched on at the height of ARI. 3 hours' perfusion corrected successfully the manifestation of hypercapnic hypoxia.