Article (Scientific journals)
Intracellular cation concentrations in essential hypertension and chronic renal failure
Krzesinski, Jean-Marie; Du, F.; Rorive, Georges
1993In Clinical and Experimental Hypertension, 15 (3), p. 461-478
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Keywords :
Erythrocyte ion concentrations and Ca-ATPase activity; Platelet free Ca and pH; Essential Hypertension; Chronic renal failure; Antihypertensive treatment; Hemodialysis
Abstract :
[en] The aim of this study was to test basal and after treatment erythrocyte sodium and calcium concentrations, and calcium-ATPase activity and platelet cytosolic free calcium and pH in 20 normotensive controls, 20 hemodialysis-dependent chronic renal failure patients and in 18 essential hypertensives. Prior to treatment, essential hypertensive and uremic patients presented similar higher platelet calcium concentrations and lower pH than the normotensive control group. The erythrocyte sodium, calcium, and magnesium concentrations were only significantly elevated in chronic renal failure, with a significant decrease in the calcium-ATPase activity in the latter population. Hemodialysis partially reversed these intracellular ionic abnormalities with normalization of platelet pH. Significant correlations have been noted between weight loss and decreases in platelet calcium concentration (r = 0.60, p < 0.01) or in erythrocyte sodium (r = 0.50, p < 0.05). The systolic blood pressure decrease was only correlated to the increase in calcium-ATPase activity (r = 0.57, p < 0.05). Antihypertensive treatment (captopril and nifedipine) only tended to normalize the intracellular calcium concentration with correlation between the decrease of the latter and blood pressure decrease (r = 0.64 for the systolic blood pressure and 0.68 for the diastolic blood pressure, p < 0.01). Thus, in essential hypertension and in uremia, some cellular ionic abnormalities exist in platelets in baseline condition. Moreover, in uremia, erythrocyte presents abnormal ionic pattern. Some, but not all of these abnormalities could be corrected by treatment affecting blood pressure (cellular calcium) in essential hypertension or by hemodialysis (cellular sodium, calcium, and pH). In the latter treatment, the changes are linked to extracellular fluid modification. In essential hypertension, the intracellular calcium reduction was linked to blood pressure decrease.
Disciplines :
Urology & nephrology
Author, co-author :
Krzesinski, Jean-Marie ;  Université de Liège - ULiège > Néphrologie
Du, F.
Rorive, Georges ;  Université de Liège - ULiège > Département des sciences cliniques > Département des sciences cliniques
Language :
English
Title :
Intracellular cation concentrations in essential hypertension and chronic renal failure
Publication date :
May 1993
Journal title :
Clinical and Experimental Hypertension
ISSN :
1064-1963
eISSN :
1525-6006
Publisher :
Taylor & Francis, Philadelphia, United States - Pennsylvania
Volume :
15
Issue :
3
Pages :
461-478
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 12 August 2010

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