parathyroid tissue from patients with hyperparathyroidism ( hpt ) exhibited reduced immunohistochemical reactivity with monoclonal antiparathyroid antibodies , previously shown to stain intensely the surface of normal human parathyroid cells and to interfere with a receptor mechanism of these cells which is involved in the sensing and gating of ca2+ .
C0020502
hyperparathyroidism
C0030518
parathyroid