Intact parathyroid hormone assay offers increased sensitivity over C-terminal assays in the study of parathyroid graft function. 1986

A J Parnham, and E C Wijeyesingh, and I F Tarbit, and R Wilkinson, and J R Farndon

Serum parathyroid hormone (PTH) levels in 6 patients who had received parathyroid tissue autografts were studied. Samples were taken from graft and non-graft arms both pre- and post-dialysis. Each sample was analysed using two PTH assays, one measuring C-terminal PTH and the other measuring the intact PTH molecule. For both pre- and post-dialysis samples an appreciably greater difference was seen between the graft and non-graft arms using the intact assay. A patient with suspected ectopic PTH production showed a very much reduced differential between the two sampling sites with both assays. We suggest that the intact PTH assay is of greater clinical utility in the localisation of ectopic glands and monitoring of graft function than the commonly used C-terminal assays.

UI MeSH Term Description Entries
D006962 Hyperparathyroidism, Secondary Abnormally elevated PARATHYROID HORMONE secretion as a response to HYPOCALCEMIA. It is caused by chronic KIDNEY FAILURE or other abnormalities in the controls of bone and mineral metabolism, leading to various BONE DISEASES, such as RENAL OSTEODYSTROPHY. Secondary Hyperparathyroidism,Hyperparathyroidisms, Secondary,Secondary Hyperparathyroidisms
D009132 Muscles Contractile tissue that produces movement in animals. Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D010280 Parathyroid Glands Two pairs of small oval-shaped glands located in the front and the base of the NECK and adjacent to the two lobes of THYROID GLAND. They secrete PARATHYROID HORMONE that regulates the balance of CALCIUM; PHOSPHORUS; and MAGNESIUM in the body. Gland, Parathyroid,Glands, Parathyroid,Parathyroid Gland
D010281 Parathyroid Hormone A polypeptide hormone (84 amino acid residues) secreted by the PARATHYROID GLANDS which performs the essential role of maintaining intracellular CALCIUM levels in the body. Parathyroid hormone increases intracellular calcium by promoting the release of CALCIUM from BONE, increases the intestinal absorption of calcium, increases the renal tubular reabsorption of calcium, and increases the renal excretion of phosphates. Natpara,PTH (1-84),PTH(1-34),Parathormone,Parathyrin,Parathyroid Hormone (1-34),Parathyroid Hormone (1-84),Parathyroid Hormone Peptide (1-34),Hormone, Parathyroid
D011863 Radioimmunoassay Classic quantitative assay for detection of antigen-antibody reactions using a radioactively labeled substance (radioligand) either directly or indirectly to measure the binding of the unlabeled substance to a specific antibody or other receptor system. Non-immunogenic substances (e.g., haptens) can be measured if coupled to larger carrier proteins (e.g., bovine gamma-globulin or human serum albumin) capable of inducing antibody formation. Radioimmunoassays
D005542 Forearm Part of the upper extremity in humans and primates extending from the ELBOW to the WRIST. Antebrachium,Antebrachiums,Forearms
D006435 Renal Dialysis Therapy for the insufficient cleansing of the BLOOD by the kidneys based on dialysis and including hemodialysis, PERITONEAL DIALYSIS, and HEMODIAFILTRATION. Dialysis, Extracorporeal,Dialysis, Renal,Extracorporeal Dialysis,Hemodialysis,Dialyses, Extracorporeal,Dialyses, Renal,Extracorporeal Dialyses,Hemodialyses,Renal Dialyses
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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