Acute regulation of circulating parathyroid hormone (PTH) molecular forms by calcium: utility of PTH fragments/PTH(1-84) ratios derived from three generations of PTH assays

What Was Tested

The paper reports a study of Parathyroid Hormone (PTH 1-84), published as a clinical trial.

The objective of the study was to investigate the regulation of circulating PTH molecular forms by calcium through the use of PTH fragments/PTH (1-84) ratios derived from PTH assays with different specificities before and after HPLC separation of circulating PTH.

Why It Was Studied

The quantitative evaluation of circulating PTH peaks revealed by PTH assays after HPLC separation constitutes the best way to study the behavior of PTH molecular forms, but it is also impractical.

Who Took Part

PubMed indexes the participants as adults, both men and women.

CaCl2 and Na citrate were infused in eight volunteers.

How the Study Was Run

PTH was measured in serum and HPLC fractions at different calcium concentrations in PTH assays reacting with regions 1-2 (CA), 12-18 (T), and 65-69 (C) of the PTH structure.

What Was Measured

The quantitative evaluation of circulating PTH peaks revealed by PTH assays after HPLC separation constitutes the best way to study the behavior of PTH molecular forms, but it is also impractical.

The subject headings attached to it are Algorithms, Calcium, Calcium Chloride, Chromatography, High Pressure Liquid, Citrates, Hypercalcemia and Hypocalcemia.

What This Means in Plain Language

This is a clinical trial of Parathyroid Hormone (PTH 1-84).

Its findings take up roughly 6 sentences of the abstract and are left out here on purpose; the source paper is the place to read them.

The publication is from 2006 (The Journal of clinical endocrinology and metabolism), a journal based in United States.

More context: the Parathyroid Hormone (PTH 1-84) compound page, all human trials.