Biological generation of tritiated vitamin D3 metabolites and their purification by high-performance liquid chromatography

ISSN:
1612-1112
Keywords:
Tritiated dihydroxycholecalciferol metabolites ; Renal hydroxylase enzymes ; Sephadex LH 20 ; High-performance liquid chromatography
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary A simple, reproducible method for the biological synthesis of tritiated 24,25-dihydroxycholecalciferol, 25,26-dihydroxycholecalciferol and 1,25-dihydroxycholecalciferol is described. Kidney homogenates from both vitamin D deficient and replete chicks were usedin vitro to generate these dihydroxylated metabolites using 25 (23,24-3H) hydroxycholecalciferol as the substrate. Tritiated products were purified by Sephadex LH 20 chromatography followed by high-performance liquid chromatography; the identity of each metabolite was established by chromatography with authentic crystalline preparations.
Type of Medium:
Electronic Resource
URL: