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논문 기본 정보

자료유형
학술저널
저자정보
Jingui Hu (China Pharmaceutical University) Ling Zhang (China Pharmaceutical University) Fei Fu (China Pharmaceutical University) Qiong Lai (China Pharmaceutical University) Lu Zhang (China Pharmaceutical University) Tao Liu (China Pharmaceutical University) Boyang Yu (China Pharmaceutical University) Junping Kou (China Pharmaceutical University) Fang Li (China Pharmaceutical University)
저널정보
고려인삼학회 Journal of Ginseng Research Journal of Ginseng Research Vol.46 No.2
발행연도
2022.3
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255 - 265 (11page)

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초록· 키워드

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Background: Ginsenoside Rb1, a bioactive component isolated from the Panax ginseng, acts as a remedy to prevent myocardial injury. However, it is obscure whether the cardioprotective functions of Rb1 are related to the regulation of endogenous metabolites, and its potential molecular mechanism still needs further clarification, especially from a comprehensive metabolomics profiling perspective.
Methods: The mice model of acute myocardial ischemia (AMI) and oxygen glucose deprivation (OGD)-induced cardiomyocytes injury were applied to explore the protective effect and mechanism of Rb1. Meanwhile, the comprehensive metabolomics profiling was conducted by high-performance liquid chromatography and quadrupole time-of-flight mass spectrometry (HPLC-Q/TOF-MS) and a tandem liquid chromatography and mass spectrometry (LC-MS).
Results: Rb1 treatment profoundly reduced the infarct size and attenuated myocardial injury. The metabolic network map of 65 differential endogenous metabolites was constructed and provided a new inspiration for the treatment of AMI by Rb1, which was mainly associated with mitophagy. In vivo and in vitro experiments, Rb1 was found to improve mitochondrial morphology, mitochondrial function and promote mitophagy. Interestingly, the mitophagy inhibitor partly attenuated the cardioprotective effect of Rb1. Additionally, Rb1 markedly facilitated the phosphorylation of AMP-activated protein kinase a (AMPKa), and AMPK inhibition partially weakened the role of Rb1 in promoting mitophagy.
Conclusions: Ginsenoside Rb1 protects acute myocardial ischemia injury through promoting mitophagy via AMPKa phosphorylation, which might lay the foundation for the further application of Rb1 in cardiovascular diseases.

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ABSTRACT
1. Introduction
2. Materials and methods
3. Results
4. Discussion
5. Conclusions
References

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