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Temperature adaptation of active sodium-potassium transport and of passive permeability in erythrocytes of ground squirrels.Unidirectional active and passive fluxes of K-42 and Na-24 were measured in red blood cells of ground squirrels (hibernators) and guinea pigs (nonhibernators). As the temperature was lowered, ?active' (ouabain-sensitive) K influx and Na efflux were more considerably diminished in guinea pig cells than in those of ground squirrels. The fraction of total K influx which is ouabain-sensitive in red blood cells of ground squirrels was virtually constant at all temperatures, whereas it decreased abruptly in guinea pig cells as temperature was lowered.
Document ID
19720031880
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Kimzey, S. L.
Willis, J. S.
(NASA Manned Spacecraft Center Houston, Tex., United States)
Date Acquired
August 6, 2013
Publication Date
December 1, 1971
Publication Information
Publication: Journal of General Physiology
Volume: 58
Subject Category
Biosciences
Accession Number
72A15546
Funding Number(s)
CONTRACT_GRANT: NIH-GM-11494
Distribution Limits
Public
Copyright
Other

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