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- W4211045068 abstract "Vitamin A deficiency (VAD) results in intestinal inflammation, increased redox stress and reactive oxygen species (ROS) levels, imbalanced inflammatory and immunomodulatory cytokines, compromised barrier function, and perturbations of the gut microbiome. To combat VAD dietary interventions with β-carotene, the most abundant precursor of vitamin A, are recommended. However, the impact of β-carotene on intestinal health during VAD has not been fully clarified, especially regarding the VAD-associated intestinal dysbiosis. Here we addressed this question by using Lrat-/-Rbp-/- (vitamin A deficient) mice deprived of dietary preformed vitamin A and supplemented with β-carotene as the sole source of the vitamin, alongside with WT (vitamin A sufficient) mice. We found that dietary β-carotene impacted intestinal vitamin A status, barrier integrity and inflammation in both WT and Lrat-/-Rbp-/- (vitamin A deficient) mice on the vitamin A-free diet. However, it did so to a greater extent under overt VAD. Dietary β-carotene also modified the taxonomic profile of the fecal microbiome, but only under VAD. Given the similarity of the VAD-associated intestinal phenotypes with those of several other disorders of the gut, collectively known as Inflammatory Bowel Disease (IBD) Syndrome, these findings are broadly relevant to the effort of developing diet-based intervention strategies to ameliorate intestinal pathological conditions." @default.
- W4211045068 created "2022-02-13" @default.
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- W4211045068 date "2022-05-01" @default.
- W4211045068 modified "2023-10-18" @default.
- W4211045068 title "β-carotene improves fecal dysbiosis and intestinal dysfunctions in a mouse model of vitamin A deficiency" @default.
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- W4211045068 doi "https://doi.org/10.1016/j.bbalip.2022.159122" @default.
- W4211045068 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35158041" @default.
- W4211045068 hasPublicationYear "2022" @default.
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