| Distributions of rheological parameters in populations of human erythrocytes. | |
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MedLine Citation:
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PMID: 10690266 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We have previously proposed the osmofiltration method based on a modified Hanss hemorheometer to analyze distributions of erythrocytes in their ability to pass through membrane filters with 3 microns pores. Upon decrease in medium osmolality (u) the erythrocyte volume increases. When cell volume becomes V = Vcr at u = ucr, such cell loses its ability to pass through a 3 microns pore. The flow rate of erythrocyte suspension containing cells with different ucr through a filter gradually decreases with decreasing medium osmolality. This rate becomes zero at some u = omega, when the number of non-filterable cells in the applied sample approaches the number of pores in filter. Experimental determination of the dependencies of the filtration rate on medium osmolality for various hematocrit values allows to obtain omega for each hematocrit and, thereby, to assess the distribution of erythrocytes in ucr. Here, we propose a simplified version of this method, which allows screening of the erythrocytes in heterogeneous suspensions for the distribution in ucr by measuring omega for only two hematocrit values, 0.1% and 1%. Applications of the proposed method are exemplified by analysing the erythrocyte populations of healthy donors, of patients with microspherocytosis, hemochromatosis and normal erythrocyte populations in an acidic environment. |
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Authors:
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I L Lisovskaya; E S Shurkhina; E E Yakovenko; N V Tsvetaeva; S V Kolodei; S P Shcherbinina; F I Ataullakhanov |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Biorheology Volume: 36 ISSN: 0006-355X ISO Abbreviation: Biorheology Publication Date: 1999 |
Date Detail:
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Created Date: 2000-03-09 Completed Date: 2000-03-09 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0372526 Medline TA: Biorheology Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 299-309 Citation Subset: IM |
Affiliation:
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National Research Center for Hematology, Russian Academy of Medical Sciences, Moscow, Russia. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Erythrocyte Deformability* Erythrocyte Volume Hematocrit Hemochromatosis / blood Hemofiltration Hemorheology* Humans Hydrogen-Ion Concentration Micropore Filters Osmolar Concentration Spherocytosis, Hereditary / blood |
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