Abstract
Chickpea (Cicer arietinum L.) is a significant dietary source of flavonoids and the hypoglycemic activity were investigated in this study. Firstly, total twenty nine chickpea flavonoids were identified by UPLC-MS/MS with ononin, cyanidin-3-O-glucoside, astragalin, cynaroside, kaempferol-3-O-rutinoside, biochanin A, and daidzin being the most abundant among them. Our results demonstrated that chickpea flavonoids regulated glucose metabolism and lipid metabolism, and reduced oxidative stress in insulin resistance HepG2 cells. Furthermore, insulin resistance was ameliorated by chickpea flavonoids through the activation of insulin receptor substrate1 (IRS1), phosphoinositide 3-kinase (PI3K), and phosphorylated protein kinase B (Akt) in HepG2 cells. More importantly, key differential metabolites include L-tryptophan, L-tyrosine, l-glutamine and linoleic acid were reserved by chickpea flavonoids and correlated with glucolipid metabolism and oxidative stress in IR-HepG2 cells. In conclusion, these results indicated that chickpea flavonoids might act as potential natural products regulating insulin resistance in HepG2 cells.
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