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Updated: May 13, 2026

A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis
Published on: May 14, 2013
Ghrelin could be a candidate for the prevention of in-stent restenosis
1Department of Cardiology, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515041, China.
Insights
In-stent restenosis (ISR) after coronary intervention is a challenge. Ghrelin, a peptide hormone, shows potential for preventing and treating ISR by addressing its multiple causes.
Area of Science:
- Cardiovascular Research
- Endocrinology
- Vascular Biology
Background:
- Percutaneous coronary intervention (PCI) is crucial for ischemic heart disease.
- In-stent restenosis (ISR) remains a significant clinical challenge following PCI.
- ISR involves complex mechanisms including inflammation, smooth muscle proliferation, endothelial dysfunction, and thrombosis.
Purpose of the Study:
- To explore ghrelin as a potential therapeutic agent for ISR.
- To evaluate ghrelin's multiple bioactivities relevant to ISR pathogenesis.
- To assess ghrelin's potential for preventing and treating ISR.
Main Methods:
- Review of existing studies on ghrelin's cardiovascular effects.
- Analysis of ghrelin's impact on key ISR mechanisms (inflammation, proliferation, endothelial function, thrombosis).
- Assessment of ghrelin's established roles in myocardial contractility, cardiac output, and ischemia-reperfusion injury.
Main Results:
- Ghrelin exhibits anti-inflammatory and anti-proliferative effects on vascular smooth muscle cells.
- Ghrelin promotes endothelial cell repair and improves vascular endothelial function.
- Ghrelin demonstrates anti-platelet aggregation and antithrombotic properties.
Conclusions:
- Ghrelin possesses multiple bioactivities that target the key mechanisms of ISR.
- Ghrelin represents a promising novel therapeutic candidate for ISR prevention and treatment.
- Further investigation into ghrelin's efficacy for ISR is warranted.
Abstract:
Percutaneous coronary intervention is a revolutionary treatment for ischemic heart disease, but in-stent restenosis (ISR) remains a clinical challenge. Inflammation, smooth muscle proliferation, endothelial function impairment, and local thrombosis have been identified as the main mechanisms for ISR. Considering the multifactorial mechanisms of ISR, a novel therapeutic agent with multiple bioactivities is required. Ghrelin is a novel gut-brain peptide predominantly produced by the stomach, and has been shown to play a role in various cardiovascular activities, such as increasing myocardial contractility, improving cardiac output, and inhibiting ventricular remodeling, as well as attenuating cardiac ischemia-reperfusion injury. Recent studies have demonstrated that ghrelin effectively inhibits vascular inflammation and vascular smooth muscle cell proliferation, repairs endothelial cells, promotes vascular endothelial function, inhibits platelet aggregation, and exerts antithrombotic effects. These findings suggest that ghrelin may be an innovative therapeutic candidate for the prevention and treatment of ISR.
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