Osmotic water permeability of human red cells.
Open Access
- 1 May 1981
- journal article
- research article
- Published by Rockefeller University Press in The Journal of general physiology
- Vol. 77 (5), 549-570
- https://doi.org/10.1085/jgp.77.5.549
Abstract
The osmotic water permeability of human red cells has been reexamined with a stopped-flow device and a new perturbation technique. Small osmotic gradients are used to minimize the systematic error caused by nonlinearities in the relationship between cell volume and light scattering. Corrections are then made for residual systematic error. Our results show that the hydraulic conductivity, Lp, is essentially independent of the direction of water flow and of osmolality in the range 184-365 mosM. the mean value of Lp obtained obtained was 1.8 +/- 0.1 (SEM) X 10-11 cm3 dyne -1 s-1.Keywords
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