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In the course of chronic kidney disease (CKD) the intracellular erythrocyte calcium (Ca i2+ ) level increases along with the progression of the disease. The decreased activity of Ca2+-Mg2+-dependent ATP-ase (PMCA) and its endogenous modulators calmodulin (CALM), calpain (CANP), and calpastatin (CAST) are all responsible for disturbed calcium metabolism. The aim of the study was to analyze the activity...
Extracellular calcium concentrations in humans are thousands times higher than within cells. Maintenance of such gradient requires specific regulation including intracellular stores, Ca binding proteins and transmembrane protein systems. The aim of the study was to estimate PMCA (plasma membrane Ca-transporting adenosine triphosphatase; ATPase 3.6.1.38) activity and calcium homeostasis in erythrocytes...
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