ArticleFood science & nutrition2023
The beneficial effects of alpha-tocopherol on intestinal function and the expression of tight junction proteins in differentiated segments of the intestine in piglets.
Article in Food science & nutrition, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed, 5 citations in OpenAlex.
- Tryptophan supplementation in low-protein diets of sows during late gestation and lactation: Effects on sow performance and piglet growth.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2026Article
- Mitigation of oxidative stress in chicken intestinal epithelial cells by functional nutrients.Journal of animal science and technology · 2026Article
- Maternal Supplementation of Vitamin E or Its Combination with Hydroxytyrosol Increases the Gut Health and Short Chain Fatty Acids of Piglets at Weaning.Antioxidants (Basel, Switzerland) · 2023Article
- The beneficial effects of alpha-tocopherol on intestinal function and the expression of tight junction proteins in differentiated segments of the intestine in piglets.Food science & nutrition · 2023Article
Corrections and comments
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Authors and funding
13 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Alpha (α)-tocopherol is a major component of dietary vitamin E. Despite being one of the most widely used food supplements in both animals and humans, its role in intestinal functions remains unknown. We were able to examine and accurately demonstrate its permeability effect in vitro and its differentiated effect on tight junction expression in different segments of the intestine in vivo using cultured intestinal porcine epithelial cell line (IPEC-J2) and piglets. A cultured IPEC-J2 demonstrated that α-tocopherol upregulated the expression of tight junction proteins and improved their integrity, with a maximum effect at concentrations ranging from 20 to 40 μmol/L. In vivo data from weaned pigs fed different doses of α-tocopherol for 2 weeks revealed that α-tocopherol effectively increases the expression of tight junction proteins in all sections of the intestinal mucosa, with the highest effect on the duodenum at an optimum dose of 20-50 mg/kg. In contrast, α-tocopherol did not affect intestinal inflammation. These findings suggest that α-tocopherol maintains intestinal integrity and increases the expression of tight junction proteins both in vitro and in vivo.
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Registered trials
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