Format

Send to

Choose Destination
Biomed Res Int. 2015;2015:758723. doi: 10.1155/2015/758723. Epub 2015 Feb 23.

Vitamin A-deficient diet accelerated atherogenesis in apolipoprotein E(-/-) mice and dietary β-carotene prevents this consequence.

Author information

1
The Bert W. Strassburger Lipid Center, Sheba Medical Center, 5265601 Tel-Hashomer, Israel ; Sackler Faculty of Medicine, Tel-Aviv University, Israel.
2
The Bert W. Strassburger Lipid Center, Sheba Medical Center, 5265601 Tel-Hashomer, Israel.
3
N.B.T., Eilat, Israel.
4
Department of Biochemistry and Molecular Biology, University of Debrecen, Debrecen, Hungary.

Abstract

Vitamin A is involved in regulation of glucose concentrations, lipid metabolism, and inflammation, which are major risk factors for atherogenesis. However, the effect of vitamin A deficiency on atherogenesis has not been investigated. Therefore, the objective of the current study was to examine whether vitamin A deficiency accelerates atherogenesis in apolipoprotein E-deficient mice (apoE(-/-)). ApoE(-/-) mice were allocated into the following groups: control, fed vitamin A-containing chow diet; BC, fed chow diet fortified with Dunaliella powder containing βc isomers; VAD, fed vitamin A-deficient diet; and VAD-BC group, fed vitamin A-deficient diet fortified with a Dunaliella powder. Following 15 weeks of treatment, liver retinol concentration had decreased significantly in the VAD group to about 30% that of control group. Vitamin A-deficient diet significantly increased both plasma cholesterol concentrations and the atherosclerotic lesion area at the aortic sinus (+61%) compared to the control group. Dietary βc fortification inhibited the elevation in plasma cholesterol and retarded atherogenesis in mice fed the vitamin A-deficient diet. The results imply that dietary vitamin A deficiency should be examined as a risk factor for atherosclerosis and that dietary βc, as a sole source of retinoids, can compensate for vitamin A deficiency.

PMID:
25802864
PMCID:
PMC4352738
DOI:
10.1155/2015/758723
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Hindawi Limited Icon for PubMed Central
Loading ...
Support Center