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Selenium polysaccharide form sweet corn cob mediated hypoglycemic effects in vitro and untargeted metabolomics study on type 2 diabetes

文献类型： 外文期刊

作者： Wang, Jingyang 1 ; Wang, Xin 1 ; Xiu, Weiye 1 ; Li, Chenchen 1 ; Yu, Shiyou 1 ; Zhu, Haobin 1 ; Shi, Xinhong 1 ; Zhou, Kechi 2 ; Ma, Yongqiang 1 ;

作者机构： 1.Harbin Univ Commerce, Sch Food Engn, Key Lab Cereal Food & Cereal Resources Heilongjian, Harbin 150028, Peoples R China

2.Heilongjiang Acad Agr Sci, Keshan Branch, Keshan 161601, Heilongjiang, Peoples R China

关键词： Sweet corn cob selenium polysaccharide; Inhibition kinetics; Interaction mechanism; Type 2 diabetes; Untargeted metabolomics

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）

ISSN： 0141-8130

年卷期： 2024 年 281 卷

页码：

收录情况： SCI

摘要： Type 2 diabetes mellitus (T2D) causes complications due to metabolic disorders besides increasing blood glucose. Sweet corn cob selenium polysaccharide (SeSCP) is a complex of Se with Sweet corn cob polysaccharide that has good hypoglycemic efficacy, but its effect on T2D metabolism has not been determined. In this study, the hypoglycemic effect of SeSCP was investigated by in vitro and in vivo experiments, and the levels of metabolites in feces were analyzed in a high-fat diet and STZ-induced T2D mouse model by Liquid chromatography-mass spectrometry (LC-MS). The results indicated that SeSCP regulates alpha-amylase and alpha-glucosidase through competitive reversible inhibition, and the reaction is spontaneous, driven by van der Waals forces and hydrogen bonding. In vivo, SeSCP modulates glucose transport decreasing glucose entry into the bloodstream. The metabolites mainly affected by SeSCP-MC were adenine, LysoPA (0:0/18:2(9Z, 12Z)), cysteine-S-sulfate, and demeclocycline (hydrochloride) metabolites. SeSCP interfered with (3- alanine metabolism, starch and sucrose metabolism, ether lipid metabolism, glycerophospholipid metabolism, glyoxylate and dicarboxylate metabolism, pantothenate and CoA biosynthesis, etc. Additionally, SeSCP exhibited more effective metabolic interventions than metformin and SCP. Therefore, SeSCP can reduce complications while improving T2D blood glucose.

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