The aim of this study was to compare if lycopene possesses also pro-vitamin A activity comparable to known vitamin A derivatives.
MATERIALS AND METHODS:
We used a transgenic retinoic acid response-element (RARE)-reporter mouse model (n = 8, per group) for this study, and after the initial wash out of vitamin A using a vitamin A deficient diet (VAD) for 18 weeks, the animals were supplemented further with a) VAD fed mice, b) VAD fed mice plus retinol (20 mg/kg bw), c) VAD fed mice plus β-carotene (40 mg/kg bw) and d) VAD fed mice plus lycopene (40 mg/kg bw). Using ex-vivo scanning and gene expression analysis of retinoid target and vitamin A marker gene analysis in various organs of these supplemented mice (b, c, d) we found increased luciferase activity and normalized marker and target gene analysis compared to group a.
Lycopene can restore vitamin A deficiency and compensate vitamin A for RAR-mediated signaling as the major function of vitamin A in the mammalian organism. Lycopene administration can initiate up-regulation of RAR-mediated signaling in various organs in VAD fed animals via potential novel bioactive lycopene-metabolites. This indicates that lycopene possesses partial pro-vitamin A activity in mice transmitted via RAR-mediated signaling. This article is protected by copyright. All rights reserved.
Lycopene supplementation restores vitamin A deficiency in mice and possesses thereby partial pro-vitamin A activity transmitted via RAR-signaling.
June 14, 2016
1Department of Biochemistry and Molecular Biology, Medical and Health Science Center, University of Debrecen, Hungary. 2Institute of Nutrition, Friedrich Schiller University Jena, Germany. 3Paprika Bioanalytics BT, Debrecen, Hungary. 4MTA-DE Public Health Research Group of the Hungarian Academy of Sciences, Faculty of Public Health, University Debrecen, Hungary.
Effects of tomato and soy on serum adipokine concentrations in postmenopausal women at increased breast cancer risk: a cross-over dietary intervention trial. Read more
February 12, 2014
Genetic variation predicts serum lycopene concentrations in a multiethnic population of postmenopausal women. Read more
February 1, 2015
Effect of lycopene on the copper-induced oxidation of low-density lipoprotein in broiler chickens Read more
March 26, 2016