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Biomedical subjects

I M Krivtsova

Publications and source records attributed to I M Krivtsova.

7 recordsLinked to original sources

[Modezhel' erythrocyte preservative as an experimental and clinical blood substitute].

The model of hemorrhagic shock in dogs was used to show that the infusion of "Modegel" normalizes the arterial pressure, substantially increases the minute volume of blood circulation. The circulating blood volume rises up to the initial level at the expense of the increased plasma volume. "Modegel" gives stable correction of the acid-base balance of blood. In clinic "Modegel" was used for filling the apparatus of artificial circulation and compared with the blood substitute "Gelatinol" for operations on the open heart. Examinations of the patients have shown that "Modegel" unlike "Gelatinol" does not induce hypercalcemia and hyperosmolarity of plasma while moderate hyperoncoticity of plasma is responsible for the circulating blood volume and favorable conditions for microcirculation.

Animals↗

[Erythrocyte preservative based on a solution of modified deionized gelatin with adenine and sodium phosphate].

The paper reports storage properties of a new erythro-preservative made of the solution of modified deionized gelatin with addition of adenine and disodium phosphate. 42-day storage of red cell suspension in the above preservative was assessed in comparison to Modejele preservative according to the following characteristics: free hemoglobin, the count of osmotically unstable red cells, red cell ATP concentration, red cell deformability index, zeta-potential, extracellular potassium and sodium concentrations, amount of microclots, acid-base condition of the suspensions, blood rheology. Control and test parameters showed the greatest difference by ATP concentrations: on storage day 42 ATP in the controls made up 58.9%, in the test series 77.8% against the baseline. Red cell deformability under storage in the new preservative also tended to a decrease. The rest test parameters did not differ much in the control and test series. Acute mouse, chronic rat, rabbit and dog experiments proved low toxicity of the preservative. The repeated introduction of the preparation brought about a slight shift to hypercoagulation.

Adenine↗