期刊
FOOD CHEMISTRY
卷 384, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2022.132358
关键词
Methylglyoxal; (-)-epigallocatechin-3-gallate; Advanced glycation end products; Reactive oxygen species; Mitogen-activated protein kinase pathway
资金
- National Natural Science Founda-tion of China [31770017, 32070017]
- Scientific Research Fund of Liaoning Provincial Education Department [LFW201903, LJKZ0090]
- Doctoral Start-up Foundation of Liaoning Province [2019-BS-111]
- Natural Science Foundation of Liaoning Province [LD2020002]
- Project for Youth and middle-aged Science and Technology Innovative Talents of Shenyang City [LDQN2019013]
- Pro-gram for Liaoning Innovative Talents in University
- Youth Scientific Research Fund of Liaoning University
This study found that EGCG can attenuate MGO-induced nerve damage by regulating MAPK and downstream pathways, as well as inhibiting the formation of AGEs.
Methylglyoxal (MGO), a reactive alpha-oxoaldehyde formed in many foods and beverages during processing and storage, has neurotoxicity. The purpose of this study was to investigate the inhibition mechanism of (-)-epi-gallocatechin-3-gallate (EGCG) on MGO-induced PC12 cells damage. Cell apoptosis and reactive oxygen species (ROS) level were measured with fluorescent staining methods. Western blotting was used to detect the signal transduction mechanism. The results indicated that EGCG decreased ROS level, inhibited apoptosis and increased the expression of brain-derived neurotrophic factor. Pathways analysis revealed that the neuroprotective mechanism of EGCG might rely on regulating mitogen-activated protein kinase (MAPK) and downstream pathways. Multi-spectroscopy and molecular docking indicated that EGCG inhibited MGO-derived advanced glycation end products (AGEs) formation. Moreover, the neurotoxicity of AGEs could be alleviated by EGCG. These results suggested that EGCG could attenuate MGO-induced nerve damage via regulating MAPK and downstream pathways and inhibiting AGEs formation.
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