title: Evidence that endogenous calcitonin protects against renal bone disease.
abstract: Plasma concentrations of calcium, phosphate, alkaline phosphatase (A.P.), immunoreactive calcitonin (iC.T.), and immunoreactive parathyroid hormone (iP.T.H.) were measured in fifty-two patients with chronic renal failure on maintenance haemodialysis. On the basis of a bimodal distribution of values for plasma-A.P. the patients were dividied into 2 groups. In those patients with normal A.P. concentratons as well as in twenty-eight normal subjects there was a positive correlation between iP.T.H. and iC.T. which was independent of plasma calcium or phosphate. Patients with increased plasma-A.P. had higher concentrations of iP.T.H., lower concentrations of iC.T., and showed a negative relation between the concentrations of the two hormones. It is suggested that a possible factor in the pathogenesis of renal bone disease is a failure to secrete C.T. in adequate amounts.
mesh_terms: D000328:Adult; D000368:Aged; D000469:Alkaline Phosphatase / Q000097:blood; D001862:Bone Resorption / Q000209:etiology / Q000517:prevention & control*; D001842:Bone and Bones / Q000378:metabolism; D002116:Calcitonin / Q000097:blood / Q000172:deficiency / Q000502:physiology*; D002118:Calcium / Q000097:blood; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000150:complications / Q000378:metabolism* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D010281:Parathyroid Hormone / Q000097:blood; D010710:Phosphates / Q000097:blood; D011863:Radioimmunoassay; D006435:Renal Dialysis
chemical_list: D010281:Parathyroid Hormone; D010710:Phosphates; D002116:Calcitonin; D000469:Alkaline Phosphatase; D002118:Calcium