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Undaria pinnatifida improves obesity-related outcomes in association with gut microbiota and metabolomics modulation in high-fat diet-fed mice

  • Applied microbial and cell physiology
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Abstract

Dietary fiber has beneficial effects on obesity-related diseases and gut microbiota, contributing a key role in the interaction between dietary metabolism and host metabolism. Our objective was to investigate the cause of the improvement in multiple types of physiological states with seaweed Undaria pinnatifida treatment on high-fat diet-fed mice and to evaluate whether its consequent anti-adiposity and anti-hyperlipidemic effects are associated with gut microbiota and its metabolomics regulation. U. pinnatifida administration in our experiment was shown to significantly decrease high-fat diet-induced body weight gain, as well as epididymal and abdominal adiposity. U. pinnatifida intake also significantly reduced liver weight and serum triacylglycerol accumulation. We also found that improving effects of U. pinnatifida on high-fat diet-induced metabolic dysfunctions were associated with significant increase in specific bacteria, such as Bacteroides acidifaciens and Bacteroides ovatus, as well as metabolites, including short-chain fatty acids and tricarboxylic acid cycle intermediates. Our result provides a cheap dietary strategy to host metabolism improvement and obesity management.

Key points

U. pinnatifida improved adipose accumulation and lipid metabolism.

B. acidifaciens and B. ovatus contributed to the beneficial effects of U. pinnatifida.

SCFAs and TCA cycle intermediates were critical to the metabolic outcomes.

Our study provides a cheap dietary strategy for obesity management.

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Funding

This work was supported by Youth Innovation Promotion Association of Chinese Academy of Sciences (2018246) and Science and Technology Program of Yantai (2020MSGY076).

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Authors and Affiliations

Authors

Contributions

LL, CY, and SQ designed the research. YW and JY were responsible for execution of the study, data collection, and analysis. LL, CY, SQ, and ZL interpreted the data and played major roles in drafting, writing, and revising this manuscript. All authors have known and agreed to this final manuscript.

Corresponding authors

Correspondence to Changqing Ye or Song Qin.

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Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

Animal experiment was carried out in Yantai University, and all procedures were permitted by the Animal Ethics Association of Yantai University and were performed according to the Regulations on the Administration of Laboratory Animals (China).

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Li, L., Wang, Y., Yuan, J. et al. Undaria pinnatifida improves obesity-related outcomes in association with gut microbiota and metabolomics modulation in high-fat diet-fed mice. Appl Microbiol Biotechnol 104, 10217–10231 (2020). https://doi.org/10.1007/s00253-020-10954-9

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  • DOI: https://doi.org/10.1007/s00253-020-10954-9

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