منابع مشابه
Sulfate Flux in High Sodium Cat Red Cells
The transport of radioactive sulfate in cat red cells has been studied. The rate constant for (35)SO(4) inward movement under steady-state conditions is 0.24 +/- 0.02/hr. This movement was found to be sensitive to osmotic changes in cell volume and to the nature of anions in the incubation medium; it increases with increasing cell volume and decreases with decreasing cell volume. The anions SCN...
متن کاملSodium Movement in High Sodium Feline Red Cells
The transport of Na in the cat red cells has been studied under various experimental conditions. The unidirectional radioactive Na influx increased with increasing temperature until it reached a maximum value at 37 degrees C +/- 2 degrees C and then decreased with a further increase in temperature. Errors stated in this paper represent 1.0 standard errors of the mean. The apparent activation en...
متن کاملCellular Inhomogeneity in Dog Red Cells As Revealed by Sodium Flux
Unidirectional (24)Na fluxes across the dog red blood cell membrane were measured. The kinetics were incompatible with a single time constant but could be accounted for in terms of a two-series compartment cell model, with approximately 1% of cell Na in the outer compartment. Dog red blood cells are known to be inhomogeneous in their Na and K permeabilities. Theoretical analysis showed that suc...
متن کاملCation Movements in the High Sodium Erythrocyte of the Cat
The uptake of (42)K and (24)Na by cat erythrocytes was investigated. Under steady-state conditions, the nontransient component of (42)K influx was found to be 0.18 +/- 0.01 meq/liter RBC/hr and insensitive to ouabain (100 microM); the corresponding value for (24)Na was 17 +/- meq/liter RBC/hr. A study was made of the effects of anions upon cation movements in these and other mammalian red cells...
متن کاملDextran Sulfate Sodium Inhibits Alanine Synthesis in Caco-2 Cells
To understand and characterize the pathogenic mechanisms of inflammatory bowel disease, dextran sulfate sodium (DSS) has been used to induce acute and chronic colitis in animal models by causing intestinal epithelium damage. The mechanism of action of DSS in producing this outcome is not well understood. In an effort to understand how DSS might impact epithelial cell metabolism, we studied the ...
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1972
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.59.2.155