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Saponins from Momordica charantia exert hypoglycemic effect in diabetic mice by multiple pathways

文献类型： 外文期刊

作者： Deng, Yuanyuan 1 ; Zhang, Yan 1 ; Liu, Guang 1 ; Zhou, Pengfei 1 ; Li, Ping 1 ; Zhao, Zhihao 1 ; Zhang, Ruifen 1 ; Tang, Xiaojun 1 ; Wang, Zhangying 2 ; Wei, Zhencheng 1 ; Zhang, Mingwei 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Sericultural & Agri Food Res Inst, Key Lab Funct Foods, Guangdong Key Lab Agr Prod Proc,Minist Agr & Rura, Guangzhou, Peoples R China

2.Guangdong Acad Agr Sci, Crops Res Inst, Key Lab Crop Genet Improvement Guangdong Prov, Guangzhou, Peoples R China

3.Guangdong Acad Agr Sci, Sericultural & Agri Food Res Inst, 133 Dongguanzhuang Yiheng Rd, Guangzhou 510610, Peoples R China

关键词： hypoglycemic effects; mice; Momordica charantia; pathways; saponin

期刊名称：FOOD SCIENCE & NUTRITION （ 影响因子：3.9； 五年影响因子：4.1 ）

ISSN： 2048-7177

年卷期： 2023 年

页码：

收录情况： SCI

摘要： The antidiabetic activity of saponins extracted from Momordica charantia (MCS) on streptozotocin-induced diabetic mice was investigated in order to elucidate the mechanism of MCS for exerting hypoglycemic effects. Saponins were first extracted from M. charantia L. and their composition was analyzed. The diabetic Kunming mice were fed low-dose saponins from M. charantia L. and high-dose MCS, using normal mice and diabetic mice as controls. Body weight, blood glucose level, oral glucose tolerance, serum C-peptide level, hepatic antioxidant capacity, hepatic glycogen and hexokinase in liver tissues, serum blood lipid level, and alpha-glucosidase activity in small intestines were measured, and microstructure of pancreatic islet was analyzed. The results showed that the total content of seven triterpenoid compounds in MCS was 18.24 mu g/ mg, with Momordicoside K having the highest content at 11.66 mu g/mg. Diabetic mice treated with MCS at 100 and 200 mg/kg body weight daily for 30 days showed a maximum glucose reduction (p <.05) of 12.63% and 26.47%, respectively. MCS significantly decreased levels of postprandial hyperglycemia, serum lipid, alpha-glucosidase activity, and liver malondialdehyde. Additionally, levels of serum C-peptide and liver glycogen, as well as hexokinase and antioxidant enzyme activity, were significantly increased compared to the diabetic control groups. Histopathological results showed that MCS markedly reduced degenerative changes in islet beta-cells. It is concluded that MCS exerts antidiabetic effects by improved hypoglycemic, hypolipidemic, and antioxidant effects, increased hexokinase activity and glycogen synthesis, and enhanced reparative effects on the histological architecture and insulin secretion function of the pancreas.

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