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  • Title: The kinetics of calcium influx into rat liver slices.
    Author: Nassar CF, Haddad ME.
    Journal: Comp Biochem Physiol A Comp Physiol; 1986; 85(2):229-32. PubMed ID: 2876830.
    Abstract:
    The unidirectional influx of calcium across rat liver slices is a carrier-mediated process which displays saturation kinetics. The presence of Mg2+ in the incubation medium competitively inhibits calcium influx into rat liver slices. Metabolic inhibitors such as ouabain and 2,4-dinitrophenol at a concentration of 1 X 10(-4) and 2.5 X 10(-4) M respectively, inhibited significantly (P less than 0.001) calcium influx across the liver slices. Calcium influx is dependent on the presence of sodium in the extracellular medium, and is significantly reduced (P less than 0.01) when sodium concentration in the preincubation solution is reduced to zero.
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