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par·a·thy·roid hor·mone (PTH),

a peptide hormone formed by the parathyroid glands; it raises the serum calcium levels when administered parenterally by causing bone resorption, reducing renal clearance of calcium and increasing efficiency of calcium absorption in the intestine. It acts in conjunction with calcitonin and other hormones.
Synonym(s): parathormone, parathyrin

Parathyrin (per´əthī´rin), a brand name for parathyroid hormone.
References in periodicals archive ?
Clinical performance of a parathyrin immunoassay with dynamically determined reference values.
Performance and diagnostic application of a two-site immunoradiometric assay for parathyrin in serum.
C-Terminal parathyrin (parathyroid hormone) radioimmunoassays in serum with commercially available reagents.