Membrane mechanical properties of ATP-depleted human erythrocytes.

Published

Journal Article

Although the relations between the metabolic state and the mechanical properties of human red blood cells (RBC) continue to be of current interest, literature reports in this area are not in agreement. The present investigation was designed to determine several intrinsic mechanical properties of human RBC membranes before and after metabolic depletion via incubation at 37 degrees C for 24 hr. Using micropipette and flow channel techniques, three properties were measured: (1) mu, surface shear modulus of elasticity; (2) K, elastic area compressibility modulus; (3) etap, shear viscosity in the plastic domain. Our results indicate no significant differences in these parameters between fresh and ATP-depleted human RBC membranes. These present data are thus in disagreement with other literature reports indicating large changes in membrane mechanical properties consequent to metabolic depletion. A brief discussion of the possible reasons for this disagreement is presented.

Full Text

Duke Authors

Cited Authors

  • Meiselman, HJ; Evans, EA; Hochmuth, RM

Published Date

  • September 1, 1978

Published In

Volume / Issue

  • 52 / 3

Start / End Page

  • 499 - 504

PubMed ID

  • 678667

Pubmed Central ID

  • 678667

Electronic International Standard Serial Number (EISSN)

  • 1528-0020

International Standard Serial Number (ISSN)

  • 0006-4971

Language

  • eng