Effect of dietary protein on vitamin A levels in plasma and liver of hypervitaminotic-A rats

Indian J Exp Biol. 2002 Mar;40(3):355-8.

Abstract

Level of vitamin A increased in plasma and liver in hypervitaminotic A albino rats fed normal quantity of protein in diet. In low protein fed state vitamin A level in liver increased due to accumulation of vitamin A and lack of carrier protein with an associated decrease of plasma vitamin A. In high protein fed rats the level of vitamin A in plasma increased due to enhanced transport while in liver it decreased. The results indicate that for normal transport of vitamin A adequate plasma protein level is essential.

MeSH terms

  • Animals
  • Biological Transport, Active
  • Dietary Proteins / administration & dosage*
  • Hypervitaminosis A / blood
  • Hypervitaminosis A / metabolism
  • Lipids / blood
  • Liver / metabolism
  • Male
  • Rats
  • Rats, Wistar
  • Retinol-Binding Proteins / metabolism
  • Retinol-Binding Proteins, Plasma
  • Vitamin A / blood*
  • Vitamin A / metabolism

Substances

  • Dietary Proteins
  • Lipids
  • Retinol-Binding Proteins
  • Retinol-Binding Proteins, Plasma
  • Vitamin A