Structure Characterization of Grifola Frondosa Polysaccharide and Its Effect on Insulin Resistance in HFD-fed Mice

Overview

Journal NPJ Sci Food

Publisher Springer Nature

Date 2025 Jan 8

PMID 39774946

Authors

Yin-Yi Ding

Jinchi Lan

Yuxin Wang

Yuxiang Pan

Tianyuan Song

Shizhu Liu

Zhenyu Gu

Yujun Ge

Affiliations

Soon will be listed here.

Abstract

Polysaccharide extracted from Grifola frondosa (GFP) was selected in this study. After preliminary separation, four factions were collected, named GFP-F1, GFP-F2, GFP-F3 and GFP-F4. GPF-F2 was further separated into two fractions, namely GFP-N1 and GFP-N2. The molecular weight of GFP-N1 and GFP-N2 was 3.323×10kDa and 10.8 kDa, respectively. GFP-N1 was composed of glucose and galactose and 1 → 3, 1 → 4, and 1 → 6 glycosidic bonds. GFP-N2 was composed of glucose, galactose and mannose and 1 → 2, 1 → 3, 1 → 4, and 1 → 6 glycosidic bonds. GFP could significantly relieve the insulin resistance induced by HFD. GFP significantly alleviated gut microbiota disturbance caused by HFD and increased the production of short-chain fatty acids, and further reduced the expression of LPS/TLR4 inflammatory pathway. GFP significantly reduced the oxidative stress induced by HFD, increased the expression of the Nrf2/ARE signaling pathway. These results indicated that GFP could be developed as a potential ingredient for the management of insulin resistance.

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