Vitamin D metabolism in tilapia (Oreochromis mossambicus)

Comp Biochem Physiol C Pharmacol Toxicol Endocrinol. 1998 Jul;120(1):145-9. doi: 10.1016/s0742-8413(98)00035-8.

Abstract

The present investigation was carried out to study the conversion of [3H]vitamin D3 and 25-OH-D3 in vivo and in vitro in freshwater tilapia (Oreochromis mossambicus). A metabolite co-migrating with 1,25-(OH)2D3 formed from [3H]vitamin D3 in vivo was about 3-fold more concentrated than that of 25-OH-D3. The conversion of 25-OH-[3H]D3 to a product co-eluting with 1,25-(OH)2D3 was several-fold higher in liver than in kidney. Our data suggests that the tilapia 'liver' may be a major site for vitamin D metabolism.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Calcifediol / blood
  • Calcifediol / metabolism
  • Calcitriol / blood
  • Calcitriol / metabolism
  • Kidney / metabolism
  • Liver / metabolism
  • Tilapia / blood
  • Tilapia / metabolism*
  • Tritium
  • Vitamin D / blood
  • Vitamin D / metabolism*

Substances

  • Tritium
  • Vitamin D
  • Calcitriol
  • Calcifediol