Definition
Red blood cell deformability (RCD) is the ability of the red cell to change its shape in response to shear stress. In falciparum malaria, RCD of both parasitized red blood cell (RBC) and uninfected RBC is reduced, which can contribute to microcirculatory dysfunction, a central feature in the pathogenesis of severe falciparum malaria.
Introduction
The normal-shaped RBC is a biconcave disc with a diameter of 7.5–8.7 μm and a cell volume which decreases slightly with cell age. RBCs spend most of their average 120-day circulatory life span within the microcirculation, encountering capillary diameters between 3 and 7 μm and down to 1–3 μm in the red pulp of the spleen. Capillary flow and RBC survival thus depend on the red blood cell’s unique ability to deform remarkably as well as on the capacity of its membrane to “tank-tread” rotate around the red cell contents. In severe falciparum malaria, deformability of both...
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Ishioka, H., Charunwatthana, P., Dondorp, A.M. (2015). Red Cell Deformability and Malaria Pathophysiology. In: Hommel, M., Kremsner, P. (eds) Encyclopedia of Malaria. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8757-9_82-1
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DOI: https://doi.org/10.1007/978-1-4614-8757-9_82-1
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