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Updated: Aug 11, 2026

Lentiviral-mediated Knockdown During Ex Vivo Erythropoiesis of Human Hematopoietic Stem Cells
Published on: July 16, 2011
[Modezhel' erythrocyte preservative as an experimental and clinical blood substitute]
Abstract:
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.
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Erythropoiesis
Disorders of Erythrocytes
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...

