Vitamin D metabolites and their relationship to azotaemic osteodystrophy.

Abstract:

:Bone biopsies were performed and serum concentrations of vitamin D metabolites were measured in twenty-four patients with chronic renal failure. The concentrations of three metabolites--25-dihydroxyvitamin D (25-OHD), 24,25-dihydroxyvitamin D (24,25-OH2D) and 1,25-dihydroxyvitamin D (1,25-OH2D)--were significantly lower in uraemic than in normal sera. There was a positive correlation between serum 24,25-OH2D and serum 25-OHD, whereas serum 1,25-OH2D values, which were independent of those of the other vitamin D metabolites, were negatively correlated with serum creatinine and serum inorganic phosphate. The two major skeletal lesions, osteomalacia and parathyroid osteopathy, while coexisting in many patients, varied independently in relation to their severity and were correlated with different vitamin D metabolites. The severity of osteomalacia was negatively correlated with the serum concentrations of 25-OHD and 24,25-OH2D while th severity of parathyroid osteopathy was negatively correlated with serum 1,25-OH2D values. To our knowledge these are the first systematic studies correlating skeletal histology with dihydroxylated vitamin D metabolites in renal failure in man.

journal_name

Clin Endocrinol (Oxf)

journal_title

Clinical endocrinology

authors

Mason RS,Lissner D,Wilkinson M,Posen S

doi

10.1111/j.1365-2265.1980.tb03399.x

subject

Has Abstract

pub_date

1980-10-01 00:00:00

pages

375-85

issue

4

eissn

0300-0664

issn

1365-2265

journal_volume

13

pub_type

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