neonatal bovine parathyroid cells showed a greater set-point for secretion ( the ca++ concentration causing half of the maximal inhibition of pth release ) than adult cells ( 1.27 +/- 0.11 vs. 1.06 +/- 0.11 mm extracellular calcium , p less than 0.01 ) , and a slightly higher extracellular calcium was necessary to raise the cytosolic calcium concentration to a given level in neonatal than in adult bovine parathyroid cells .
C0007634
cells
C1383501
cytosolic