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08 December 2018 : Animal Research  

Hypoxia-Inducible Factor 1 alpha (HIF-1α)/Vascular Endothelial Growth Factor (VEGF) Pathway Participates in Angiogenesis of Myocardial Infarction in Muscone-Treated Mice: Preliminary Study

Yingqiang Du1ABCDEF, Yingbin Ge2AE, Zhihui Xu1CE, Nan Aa1BF, Xin Gu1AB, Haoyu Meng1AE, Zhou Lin3CE, Dongxiao Zhu4BC, Jingjing Shi3AC, Ruijuan Zhuang3AC, Xueming Wu3CF, Xiaoyan Wang3ACEFG, Zhijian Yang1ADEFG*

DOI: 10.12659/MSM.912051

Med Sci Monit 2018; 24: ANS8870-8877


BACKGROUND: Angiogenesis plays a crucial role in myocardial infarction (MI) treatment by ameliorating myocardial remodeling, thus improving cardiac function and preventing heart failure. Muscone has been reported to have beneficial effects on cardiac remodeling in MI mice. However, the effects of muscone on angiogenesis in MI mice and its underlying mechanisms remain unknown.

MATERIAL AND METHODS: Mice were randomly divided into sham, MI, and MI+muscone groups. The MI mouse model was established by ligating the left anterior descending coronary artery. Mice in the sham group received the same procedure except for ligation. Mice were administered muscone or an equivalent volume of saline for 4 consecutive weeks. Cardiac function was evaluated by echocardiograph after MI for 2 and 4 weeks. Four weeks later, all mice were sacrificed and Masson’s trichrome staining was used to assess myocardial fibrosis. Isolectin B4 staining was applied to evaluate the angiogenesis in mouse hearts. Immunohistochemistry, Western blot analysis, and quantitative real-time polymerase chain reaction (qPCR) were performed to analyze expression levels of HIF-1a and its downstream genes.

RESULTS: Compared with the MI group, muscone treatment significantly improved cardiac function and reduced myocardial fibrosis. Moreover, muscone enhanced angiogenesis in the peri-infarct region and p-VEGFR2 expression in the vascular endothelial cells. Western blot analysis and qPCR showed that muscone upregulated expression levels of HIF-1a and VEGFA.

CONCLUSIONS: Muscone improved cardiac function in MI mice through augmented angiogenesis. The potential mechanism of muscone treatment in regulating angiogenesis of MI mice was upregulating expression levels of HIF-1α and VEGFA.

Keywords: Angiogenesis Inducing Agents, Hypoxia-Inducible Factor 1, alpha Subunit, Myocardial Infarction, Vascular Endothelial Growth Factor A



01 January 2023 : Editorial  

Editorial: Current Status of Two Adjuvanted Malaria Vaccines and the World Health Organization (WHO) Strategy to Eradicate Malaria by 2030

Dinah V. Parums
Science Editor, Medical Science Monitor, International Scientific Information, Inc., Melville, NY, USA

DOI: 10.12659/MSM.939357

Med Sci Monit 2023; 29:e939357


26 January 2023 : Editorial  

Editorial: The XBB.1.5 (‘Kraken’) Subvariant of Omicron SARS-CoV-2 and its Rapid Global Spread

Med Sci Monit In Press; DOI: 10.12659/MSM.939580  

19 January 2023 : Clinical Research  

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27 December 2022 : Clinical Research  

Effect of Physiotherapy to Correct Rounded Shoulder Posture in 30 Patients During the COVID-19 Pandemic in ...

Med Sci Monit 2022; 28:e938926

In Press

27 Jan 2023 : Database Analysis  

Association Between Neutrophil-Lymphocyte Ratio and All-Cause Mortality in Critically Ill Patients with Chr...

Med Sci Monit In Press; DOI: 10.12659/MSM.938554  

27 Jan 2023 : Clinical Research  

Proposal for a Simple Equation for Limb Muscle Weight Calculation

Med Sci Monit In Press; DOI: 10.12659/MSM.938606  

26 Jan 2023 : Editorial  

Editorial: The XBB.1.5 (‘Kraken’) Subvariant of Omicron SARS-CoV-2 and its Rapid Global Spread

Med Sci Monit In Press; DOI: 10.12659/MSM.939580  

20 Jan 2023 : Clinical Research  

A Study of 42 Partially Edentulous Patients with Single-Crown Restorations and Implants to Compare Bone Los...

Med Sci Monit In Press; DOI: 10.12659/MSM.939225  

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750