Highly branched RG-I domain enrichment are indispensable for pectin mitigating against high-fat diet-induced obesity
Authors
Zhu, Kai
Mao, Guizhu
Wu, Dongmei
Yu, Chengxiao
Cheng, Huan
Xiao, Hang
Ye, Xingqian
Linhardt, Robert J.
Orfila, Caroline
Chen, Shiguo
ORCID
https://orcid.org/0000-0003-2219-5833
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Other Contributors
Issue Date
2020-08-12
Keywords
Biology , Chemistry and chemical biology , Chemical and biological engineering , Biomedical engineering
Degree
Terms of Use
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Full Citation
Highly branched RG-I domain enrichment are indispensable for pectin mitigating against high-fat diet-induced obesity, K. Zhu, G. Mao, D. Wu, C. Yu, H. Xiao, X. Ye, R. J. Linhardt, C. Orfila, S. Chen, Journal of Agriculture and Food Chemistry, 68, 8688-8701, 2020.
Abstract
Obesity is associated with gut microbiome dysbiosis. Our previous research has shown that highly branched rhamnogalacturonan type I (RG-I)-enriched pectin (WRP, 531.5 kDa, 70.44% RG-I, Rha/(Gal + Ara) = 20) and its oligosaccharide with less branched RG-I [DWRP, 12.1 kDa, 50.29% RG-I, Rha/(Gal + Ara) = 6] are potential prebiotics. The present study is conducted to uncover the impact of the content, molecular size, and branch degrees of RG-I on the inhibiting effect of high-fat diet (HFD)-induced obesity. The commercial pectin (CP, 496.2 kDa, 35.77% RG-I, Rha/(Gal + Ara) = 6), WRP, and DWRP were orally administered to HFD-fed C57BL/6J mice (100 mg kg–1 d–1) to determine their individual effects on obesity. WRP significantly prevented bodyweight gain, insulin resistance, and inflammatory responses in HFD-fed mice. No obvious anti-obesity effect was observed in either CP or DWRP supplementation. A mechanistic study revealed that CP and DWRP could not enhance the diversity of gut microbiota, while WRP treatment positively modulated the gut microbiota of obese mice by increasing the abundance of Butyrivibrio, Roseburia, Barnesiella, Flavonifractor, Acetivibrio, and Clostridium cluster IV. Furthermore, WRP significantly promoted browning of white adipose tissues in HFD-fed mice, while CP and DWRP did not. WRP can attenuate the HFD-induced obesity by modulation of gut microbiota and lipid metabolism. Highly branched RG-I domain enrichment is essential for pectin mitigating against the HFD-induced obesity.
Description
Journal of Agriculture and Food Chemistry, 68, 8688-8701
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Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Department
The Linhardt Research Labs.
The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS)
The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS)
Publisher
Relationships
The Linhardt Research Labs Online Collection
Rensselaer Polytechnic Institute, Troy, NY
Journal of Agricultural and Food Chemistry
https://harc.rpi.edu/
Rensselaer Polytechnic Institute, Troy, NY
Journal of Agricultural and Food Chemistry
https://harc.rpi.edu/
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