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Biophysical Journal 13: 1212-1222 (1973)
© 1973 the Biophysical Society

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Trauma of the Erythrocyte Membrane Associated with Low Shear Stress

B. N. Nanjappa, Hsin-Kang Chang and Chester A. Glomski

ABSTRACT

Studies have been performed on erythrocytes that have been subjected to a low shear stress of less than 100 dyn/cm2 in a cone-and-plate viscometer. Alterations that were observed included decreased red cell survival, increased osmotic fragility, changes in the cation permeability of the red cell membrane, and a reduction in membrane-associated acetylcholinesterase activity. Some of these alterations are similar to those accompanying aging. The observed data suggest that one segment of the erythrocyte population is more susceptible to shear-induced damage than the rest of the cells.






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Copyright © 1973 by the Biophysical Society.