Measurement of 1,25-dihydroxycholecalciferol in man by radioimmunoassay.

Abstract:

:1 alpha, 25-Dihydroxycholecalciferol (1,25-(OH)2D3) has been measured in human serum by radioimmunoassay. The assay uses a high titre antiserum raised in sheep against 1,25-(OH)2D3-25-hemisuccinate, conjugated to bovine serum albumin. The sensitivity of the assay is 10 pg/tube. Other hydroxylated forms of vitamin D3 cross react with the antiserum and are therefore removed from serum extracts by chromatography on Sephadex LH 20 followed by high pressure liquid chromatography. The mean (+/- SEM) serum 1,25-(OH)2D3 concentration for a group of healthy adult subjects was 41 +/- 2.5 pg/ml. None was detected in anephric patients and the concentration was low or undetectable in patients with chronic renal failure.

journal_name

Clin Endocrinol (Oxf)

journal_title

Clinical endocrinology

authors

Clemens TL,Hendy GN,Papapoulos SE,Fraher LJ,Care AD,O'Riordan JL

doi

10.1111/j.1365-2265.1979.tb03068.x

subject

Has Abstract

pub_date

1979-01-01 00:00:00

pages

225-34

issue

2

eissn

0300-0664

issn

1365-2265

journal_volume

11

pub_type

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