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Broccoli seed extract rich in polysaccharides and glucoraphanin ameliorates DSS ‐induced colitis via intestinal barrier protection and gut microbiota modulation in mice

Journal Article · · Journal of the Science of Food and Agriculture
DOI:https://doi.org/10.1002/jsfa.12382· OSTI ID:1906741
 [1];  [1];  [1];  [1];  [1];  [2];  [3];  [1];  [1];  [2]
  1. State Key Laboratory of Food Science and Technology Jiangnan University Wuxi China, School of Food Science and Technology Jiangnan University Wuxi China
  2. State Key Laboratory of Food Science and Technology Jiangnan University Wuxi China, School of Food Science and Technology Jiangnan University Wuxi China, National Engineering Research Center for Functional Food Jiangnan University Wuxi China
  3. The Affiliated Wuxi Second People's Hospital of Nanjing Medical University Wuxi China
Abstract BACKGROUND

Broccoli has received widespread attention because of its anti‐inflammatory and antioxidant effects. The present study aimed to explore the composition of broccoli seed extract (BSE) and its effect on colitis induced by dextran sulfate sodium (DSS).

RESULTS

BSE mainly comprises glucoraphanin and polysaccharides composed of arabinose, galactose, glucose and mannose. Animal experiments suggested that BSE intervention effectively reversed body weight loss, suppressed the levels of proinflammatory interleukin‐6, tumor necrosis factor‐α and interleukin‐1β, and elevated the levels of anti‐inflammatory interleukin‐10 and the activities of superoxide dismutase and glutathione in DSS‐induced colitis mice. According to histopathologic and immunohistochemical analysis of colon tissue, BSE intervention may repair the intestinal barrier by upregulating mRNA levels and the expression of tight junction proteins (claudin‐1, occludin and zonula occludens‐1). Gas chromatography–mass spectrometry (MS) analysis demonstrated that cecal short‐chain fatty acids in mice with BSE administration were significantly increased compared with the model group. Sulforaphane and sulforaphane‐ N ‐acetylcysteine were only detected in BSE group mice by ultra‐performance liquid chromatography‐MS analysis. In addition, BSE intervention evidently increased the abundance of Alistipeds , Coriobacteriaceae UCG‐002 and Bifidobacterium and decreased the abundance of Escheichia‐Shinella , Lachnospiraceae others , Parabacteroides , Ruminococcaceae others and Turicibacter , which possibly promoted carbohydrate metabolism and short‐chain fatty acid production.

CONCLUSION

The present study aimed to elucidate the effect of BSE on colitis and found that BSE, as a novel food ingredient, has great potential for the improvement of colitis. © 2022 Society of Chemical Industry.

Sponsoring Organization:
USDOE
OSTI ID:
1906741
Journal Information:
Journal of the Science of Food and Agriculture, Journal Name: Journal of the Science of Food and Agriculture Journal Issue: 4 Vol. 103; ISSN 0022-5142
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
United Kingdom
Language:
English

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