Effects of dietary anthocyanins on tocopherols and lipids in rats

J Agric Food Chem. 2002 Dec 4;50(25):7226-30. doi: 10.1021/jf025716n.

Abstract

The effects of dietary cyanidin-3-O-glucoside (C3G) and concentrates from blackcurrant [Ribes nigrum] (BC) and elderberry [Sambucus nigra] (EC) on plasma and tissue concentrations of alpha- (alpha-T) and gamma-tocopherol (gamma-T) and cholesterol, as well as the fatty acid composition of the liver lipids were investigated in growing, male rats of the Sprague-Dawley strain. Animals were fed semisynthetic diets supplemented with 2 g/kg C3G, BC, or EC for 4 weeks. Dietary anthocyanins did not affect feed intake, body weight, and organ weights. C3G elevated the concentrations of tocopherols in the liver and lungs (P < 0.05). Cholesterol levels in plasma and liver were not affected by any of the regimens. C3G and BC reduced the relative amount of saturated fatty acids in the liver (P < 0.05). BC also lowered the percentage of 22:6 + 24:0 and EC the ratio of 20:3/20:4 n-6 (P < 0.05). In conclusion, dietary C3G, BC, and EC appear to have little effect on cholesterol levels and the fatty acid pattern in the liver but seem to be capable of sparing vitamin E in healthy, growing rats.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anthocyanins / pharmacology*
  • Cholesterol / analysis
  • Cholesterol / blood
  • Diet*
  • Fatty Acids / analysis
  • Fruit / chemistry
  • Glucosides / pharmacology
  • Lipids / analysis*
  • Lipids / blood
  • Liver / chemistry
  • Lung / chemistry
  • Male
  • Rats
  • Rats, Sprague-Dawley
  • Ribes / chemistry*
  • Sambucus nigra / chemistry*
  • Tocopherols / analysis*
  • Tocopherols / blood
  • alpha-Tocopherol / analysis
  • alpha-Tocopherol / blood
  • gamma-Tocopherol / analysis
  • gamma-Tocopherol / blood

Substances

  • Anthocyanins
  • Fatty Acids
  • Glucosides
  • Lipids
  • cyanidin-3-O-beta-glucopyranoside
  • gamma-Tocopherol
  • Cholesterol
  • alpha-Tocopherol
  • Tocopherols