ISSN:
1432-0827
Keywords:
Protamine
;
Hypocalcemia
;
Parathyroid hormone
;
Bone resorption
;
Bone turnover
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
,
Physics
Notes:
Summary Protamine is shown to be a powerful disrupter of calcium homeostasis, acutely inducing a severe hypocalcemia in both rabbits and rats. The magnitude of its effect correlates with bone turnover. Protamine does not significantly alter the renal excretion of calcium, and is effective whether or not there is calcium present in the gut. Protamine causes a significant fall in the specific activity of45Ca in the blood in animals whose bone has been prelabeled with45Ca. These data suggest that protamine induces hypocalcemia by blocking calcium efflux from bone. Further work seems indicated to define the biochemical mechanism of this action.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02405316
Permalink