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Erythrocyte concentrations and fluxes of sodium and potassium were investigated in normal black and white male subjects. Erythrocyte sodium concentration was significantly elevated in blacks compared to whites. In single regression analysis erythrocyte sodium concentration was inversely related to the ouabain-sensitive 86Rb-uptake and to the frusemide-sensitive sodium efflux. After adjusting for race, only the relationship between the erythrocyte sodium concentration and the Na+, K+-ATpase pump activity persisted. The sodium-lithium countertransport system was also depressed in the black subjects. No significant difference was observed in erythrocyte potassium concentration between blacks and white. It is probable that, in blacks the decreased active influx of potassium through the sodium-potassium pump was to some extent counter balanced by a reduced efflux of this cationic mediated by the depressed cotransport system. There was no difference in cationic concentrations and fluxes of sodium and potassium between blacks bearing and not bearing haemoglobin S.
J R M'Buyamba-Kabangu, and
P Lijnen, and
D Groeseneken, and
J Staessen, and
W Lissens, and
W Goossens, and
R Fagard, and
A Amery
June 1984,
Methods and findings in experimental and clinical pharmacology,
J R M'Buyamba-Kabangu, and
P Lijnen, and
D Groeseneken, and
J Staessen, and
W Lissens, and
W Goossens, and
R Fagard, and
A Amery
September 1988,
Nihon Jinzo Gakkai shi,
J R M'Buyamba-Kabangu, and
P Lijnen, and
D Groeseneken, and
J Staessen, and
W Lissens, and
W Goossens, and
R Fagard, and
A Amery
June 1974,
Blood,
J R M'Buyamba-Kabangu, and
P Lijnen, and
D Groeseneken, and
J Staessen, and
W Lissens, and
W Goossens, and
R Fagard, and
A Amery
November 1973,
Research in veterinary science,
J R M'Buyamba-Kabangu, and
P Lijnen, and
D Groeseneken, and
J Staessen, and
W Lissens, and
W Goossens, and
R Fagard, and
A Amery
April 1991,
The Central African journal of medicine,
J R M'Buyamba-Kabangu, and
P Lijnen, and
D Groeseneken, and
J Staessen, and
W Lissens, and
W Goossens, and
R Fagard, and
A Amery
January 1994,
Methods and findings in experimental and clinical pharmacology,
J R M'Buyamba-Kabangu, and
P Lijnen, and
D Groeseneken, and
J Staessen, and
W Lissens, and
W Goossens, and
R Fagard, and
A Amery
November 1987,
Archives internationales de physiologie et de biochimie,
J R M'Buyamba-Kabangu, and
P Lijnen, and
D Groeseneken, and
J Staessen, and
W Lissens, and
W Goossens, and
R Fagard, and
A Amery
May 1955,
Helvetica paediatrica acta,
J R M'Buyamba-Kabangu, and
P Lijnen, and
D Groeseneken, and
J Staessen, and
W Lissens, and
W Goossens, and
R Fagard, and
A Amery
January 1985,
Magnesium,
J R M'Buyamba-Kabangu, and
P Lijnen, and
D Groeseneken, and
J Staessen, and
W Lissens, and
W Goossens, and
R Fagard, and
A Amery
January 1967,
The Journal of physiology,
