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This study evaluated the effect of somatostatin on immunoreactive parathyroid hormone (iPTH) and calcitonin (iCT) secretion in vivo in rats and monkeys and on iPTH secretion in vitro by normal bovine parathyroid tissue and by a human parathyroid adenoma. Somatostatin infusion promptly (within 0.5 h) suppressed both iPTH and iCT in both species studied in vivo, the suppression being progressive during the infusion period. In in vitro studies, somatostatin caused significant dose-related decreases in basal, low Ca-stimulated, and high Ca-suppressed PTH secretion from normal bovine parathyroid tissue and from basal and low Ca-stimulated PTH secretion from a human parathyroid adenoma. Therefore, somatostatin 1) suppresses both PTH and CT secretion in vivo; 2) acts directly on the parathyroid cell and presumably directly on the C-cell also; 3) acts upon normal and adenomatous parathyroid tissue; 4) suppresses basal, low Ca-stimulated and high Ca-suppressed PTH secretion; and 5) has a dose-related effect. The possible role of somatostatin in the physiological control of PTH and CT secretion (and therefore in Ca homeostasis), and in the pathogenesis of abnormalities of Ca homeostasis, requires further evaluation.
G K Hargis, and
G A Williams, and
W A Reynolds, and
B S Chertow, and
S C Kukreja, and
E N Bowser, and
W J Henderson
January 1970,
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G K Hargis, and
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W A Reynolds, and
B S Chertow, and
S C Kukreja, and
E N Bowser, and
W J Henderson
October 1978,
European journal of pediatrics,
G K Hargis, and
G A Williams, and
W A Reynolds, and
B S Chertow, and
S C Kukreja, and
E N Bowser, and
W J Henderson
May 1971,
Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme,
G K Hargis, and
G A Williams, and
W A Reynolds, and
B S Chertow, and
S C Kukreja, and
E N Bowser, and
W J Henderson
April 1982,
Maturitas,
G K Hargis, and
G A Williams, and
W A Reynolds, and
B S Chertow, and
S C Kukreja, and
E N Bowser, and
W J Henderson
February 1975,
Endocrinology,
G K Hargis, and
G A Williams, and
W A Reynolds, and
B S Chertow, and
S C Kukreja, and
E N Bowser, and
W J Henderson
January 1987,
Cytogenetics and cell genetics,
G K Hargis, and
G A Williams, and
W A Reynolds, and
B S Chertow, and
S C Kukreja, and
E N Bowser, and
W J Henderson
January 1980,
Endocrine reviews,
G K Hargis, and
G A Williams, and
W A Reynolds, and
B S Chertow, and
S C Kukreja, and
E N Bowser, and
W J Henderson
June 1994,
Journal of the autonomic nervous system,
G K Hargis, and
G A Williams, and
W A Reynolds, and
B S Chertow, and
S C Kukreja, and
E N Bowser, and
W J Henderson
April 1983,
Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.),
G K Hargis, and
G A Williams, and
W A Reynolds, and
B S Chertow, and
S C Kukreja, and
E N Bowser, and
W J Henderson
February 1986,
Kidney international. Supplement,
