ORIGINAL PAPER
Resveratrol affects the lipid profile but not antioxidant enzymes gene expression in rats fed hypercholesterolaemic diet
More details
Hide details
1
Agricultural University of Krakow, Department of Human Nutrition, Balicka 122, 30-149 Kraków, Poland
Publication date: 2013-06-17
Corresponding author
A. Kopeć
Agricultural University of Krakow, Department of Human Nutrition, Balicka 122, 30-149 Kraków, Poland
J. Anim. Feed Sci. 2013;22(2):137-143
KEYWORDS
ABSTRACT
The objective of this study was to evaluate the effect of adding
resveratrol (RSV) to a hypercholesterolaemic diet on the lipid profile, activity of
antioxidant enzymes and their mRNA gene expression, as well as lipid concentration
in selected organs of Wistar rats. Animals were divided into four groups
and fed experimental diets for 8 weeks. The negative control group (NC) was
fed AIN-93G diet. The positive control group (PC) received a hypercholesterolaemic
diet (AIN-93G + 0.1% cholesterol, 7% butter). The other groups were
fed PC diets supplemented with 0.05% and 0.1% RSV, respectively. An addition
to the PC diet RSV (0.05 and 0.1%, respectively) significantly decreased
concentration of total cholesterol (TC) and LDL-cholesterol in serum of rats
compared to the PC group. The triacylglycerols (TAG) level was significantly
lower in serum of rats fed with 0.05% of RSV in comparison to other experimental
groups. Activities of antioxidant enzymes and their mRNA gene expression
were not affected by RSV. In conclusion, relatively high doses of RSV were
sufficient in lowering TC and LDL-cholesterol, and TAG and oxidative stress
without involving naturally occurring mechanisms in rats.