increasing dietary na at the lower ca intake caused significant ( p less than 0.05 ) increases in parathyroid hormone ( pth ) and 24-hour cyclic amp excretion that were associated with significant ( p less than 0.01 ) increases in erythrocyte intracellular calcium ( from 5.4 +/- 0.7 to 11.1 +/- 3.7 microm ) , ca-atpase ( from 37.2 +/- 2.4 to 42.2 +/- 2.1 pmol/min/10 ( 6 ) cells ) and intracellular sodium ( from 220.5 +/- 7.4 to 262.0 +/- 8.3 micrograms/ml ) and decreases ( p less than 0.05 ) in na/k-atpase ( from 1.90 +/- 0.55 to 1.48 +/- 0.47 pmol/min/10 ( 6 ) cells ) and intracellular magnesium ( mg ) ( from 52.4 +/- 3.5 to 43.8 +/- 2.4 micrograms/ml ) .
C0001473
atpase
C0001479
na/k-atpase