Abstract
Parathyroid function was assessed by calcium infusions (4-8 h) in 16 patients with chronic renal insufficiency being treated by long-term hemodialysis. The concentrations of two immunoreactive species of parathyroid hormone in plasma (iPTH-9, mol wt 9500; iPTH-7, mol wt 7000) were estimated by radioimmunoassays utilizing two relatively specific antisera. Control values of the smaller species, iPTH-7, were uniformly high, whereas values of iPTH-9 were normal in 12 of 19 studies. Response of iPTH-7 to calcium infusions was variable, with significant decreases occurring only five times in 27 infusions. Concentrations of iPTH-9, however, decreased during every calcium infusion. In contrast to these acute responses, five of six patients studied during periods of dialysis against both low (< 6 mg/100 ml) and high (7-8 mg/100 ml) calcium concentrations in the dialyzate showed a decrease in values of iPTH-7 during the period of dialysis against the higher calcium concentration. It is concluded that plasma concentrations of iPTH-9 reflect primarily the moment-to-moment secretory status of the parathyroid glands, while concentrations of iPTH-7 reflect more closely chronic parathyroid functional status. It is further concluded that the failure of iPTH-7 to decrease during induced hypercalcemia should not be equated with autonomy of parathyroid gland function.
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- Arnaud C. D., Sizemore G. W., Oldham S. B., Fischer J. A., Tsao H. S., Littledike E. T. Human parathyroid hormone: glandular and secreted molecular species. Am J Med. 1971 May;50(5):630–638. doi: 10.1016/0002-9343(71)90118-5. [DOI] [PubMed] [Google Scholar]
- Arnaud C. D., Tsao H. S., Littledike T. Radioimmunoassay of human parathyroid hormone in serum. J Clin Invest. 1971 Jan;50(1):21–34. doi: 10.1172/JCI106476. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Arnaud C. D., Tsao H. S., Oldham S. B. Native human parathyroid hormone: an immunochemical investigation. Proc Natl Acad Sci U S A. 1970 Sep;67(1):415–422. doi: 10.1073/pnas.67.1.415. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Berson S. A., Yalow R. S., Aurbach G. D., Potts J. T. IMMUNOASSAY OF BOVINE AND HUMAN PARATHYROID HORMONE. Proc Natl Acad Sci U S A. 1963 May;49(5):613–617. doi: 10.1073/pnas.49.5.613. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Berson S. A., Yalow R. S. Clinical applications of radioimmunoassay of plasma parathyroid hormone. Am J Med. 1971 May;50(5):623–629. doi: 10.1016/0002-9343(71)90117-3. [DOI] [PubMed] [Google Scholar]
- Berson S. A., Yalow R. S. Immunochemical heterogeneity of parathyroid hormone in plasma. J Clin Endocrinol Metab. 1968 Jul;28(7):1037–1047. doi: 10.1210/jcem-28-7-1037. [DOI] [PubMed] [Google Scholar]
- Berson S. A., Yalow R. S. Parathyroid hormone in plasma in adenomatous hyperparathyroidism, uremia, and bronchogenic carcinoma. Science. 1966 Nov 18;154(3751):907–909. doi: 10.1126/science.154.3751.907. [DOI] [PubMed] [Google Scholar]
- Canterbury J. M., Reiss E. Fractionation of circulating parathyroid hormone (PTH) in man. J Lab Clin Med. 1971 Nov;78(5):814–814. [PubMed] [Google Scholar]
- Fournier A. E., Arnaud C. D., Johnson W. J., Taylor W. F., Goldsmith R. S. Etiology of hyperparathyroidism and bone disease during chronic hemodialysis. II. Factors affecting serum immunoreactive parathyroid hormone. J Clin Invest. 1971 Mar;50(3):599–605. doi: 10.1172/JCI106530. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Fournier A. E., Johnson W. J., Taves D. R., Beabout J. W., Arnaud C. D., Goldsmith R. S. Etiology of hyperparathyroidism and bone disease during chronic hemodialysis. I. Association of bone disease with potentially etiologic factors. J Clin Invest. 1971 Mar;50(3):592–598. doi: 10.1172/JCI106529. [DOI] [PMC free article] [PubMed] [Google Scholar]
- GOLDSMITH R. S., MASON A. D., HALL W. H., POWERS J. F. A rapid calcium infusion test for hyperparathyroidism. J Clin Endocrinol Metab. 1962 Jul;22:741–747. doi: 10.1210/jcem-22-7-741. [DOI] [PubMed] [Google Scholar]
- Goldsmith R. S., Furszyfer J., Johnson W. J., Fournier A. E., Arnaud C. D. Control of secondary hyperparathyroidism during long-term hemodialysis. Am J Med. 1971 May;50(5):692–699. doi: 10.1016/0002-9343(71)90125-2. [DOI] [PubMed] [Google Scholar]
- HOWARD J. E., HOPKINS T. R., CONNOR T. B. The use of intravenous calcium as measure of activity of the parathyroid glands. Trans Assoc Am Physicians. 1952;65:351–358. [PubMed] [Google Scholar]
- Habener J. F., Powell D., Murray T. M., Mayer G. P., Potts J. T., Jr Parathyroid hormone: secretion and metabolism in vivo. Proc Natl Acad Sci U S A. 1971 Dec;68(12):2986–2991. doi: 10.1073/pnas.68.12.2986. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Moore E. W. Ionized calcium in normal serum, ultrafiltrates, and whole blood determined by ion-exchange electrodes. J Clin Invest. 1970 Feb;49(2):318–334. doi: 10.1172/JCI106241. [DOI] [PMC free article] [PubMed] [Google Scholar]
- NORDIN B. E., FRASER R. The effect of intravenous calcium on phosphate excretion. Clin Sci. 1954 Nov;13(4):477–490. [PubMed] [Google Scholar]
- Reis E., Canterbury J. M. A radioimmunoassay for parathyroid hormone in man. Proc Soc Exp Biol Med. 1968 Jun;128(2):501–504. doi: 10.3181/00379727-128-33050. [DOI] [PubMed] [Google Scholar]
- Reiss E., Canterbury J. M., Egdahl R. H. Experience with a radioimmunoassay of parathyroid hormone in human sera. Trans Assoc Am Physicians. 1968;81:104–115. [PubMed] [Google Scholar]
- Reiss E., Canterbury J. M. Genesis of hyperparathyroidism. Am J Med. 1971 May;50(5):679–685. doi: 10.1016/0002-9343(71)90123-9. [DOI] [PubMed] [Google Scholar]
- Sherwood L. M., Mayer G. P., Ramberg C. F., Jr, Kronfeld D. S., Aurbach G. D., Potts J. T., Jr Regulation of parathyroid hormone secretion: proportional control by calcium, lack of effect of phosphate. Endocrinology. 1968 Nov;83(5):1043–1051. doi: 10.1210/endo-83-5-1043. [DOI] [PubMed] [Google Scholar]
- Sherwood L. M., Rodman J. S., Lundberg W. B. Evidence for a precursor to circulating parathyroid hormone. Proc Natl Acad Sci U S A. 1970 Nov;67(3):1631–1638. doi: 10.1073/pnas.67.3.1631. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Slatopolsky E., Caglar S., Pennell J. P., Taggart D. D., Canterbury J. M., Reiss E., Bricker N. S. On the pathogenesis of hyperparathyroidism in chronic experimental renal insufficiency in the dog. J Clin Invest. 1971 Mar;50(3):492–499. doi: 10.1172/JCI106517. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Vosik W. M., Anderson C. F., Steffee W. P., Johnson W. J., Arnaud C. D., Goldsmith R. S. Successful medical management of osteitis fibrosa due to "tertiary" hyperparathyroidism. Mayo Clin Proc. 1972 Feb;47(2):110–113. [PubMed] [Google Scholar]