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Related Experiment Video

Updated: Feb 10, 2026

Monitoring Astrocyte Reactivity and Proliferation in Vitro Under Ischemic-Like Conditions

Monitoring Astrocyte Reactivity and Proliferation in Vitro Under Ischemic-Like Conditions

Published on: October 21, 2017

Current Modalities and Mechanisms Underlying Cardioprotection by Ischemic Conditioning.

John H Rosenberg¹, John H Werner¹, Michael J Moulton²

¹Department of Clinical & Translational Science, The Peekie Nash Carpenter Endowed Chair in Medicine, Creighton University School of Medicine, CRISS II Room 510, 2500 California Plaza, Omaha, NE, 68178, USA.

Journal of Cardiovascular Translational Research

|May 26, 2018

Summary

Remote ischemic preconditioning protects the heart by triggering protective signaling pathways. While promising for acute myocardial infarction, clinical trials are needed to confirm benefits beyond current therapies.

Keywords:

Cardiomyocytes Cardioprotection Ischemia Ischemic conditioning Reperfusion injury Reperfusion injury salvage kinase Survival activator factor enhancement

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Area of Science:

Cardiology
Physiology

Background:

Ischemic preconditioning mitigates reperfusion injury.
Mechanical and remote methods show promise, while pharmacological approaches have been less successful.

Purpose of the Study:

To explore the mechanisms and clinical potential of remote ischemic preconditioning (RIPC).
To investigate RIPC's role in activating cardioprotective signaling pathways.

Main Methods:

RIPC involves applying cycles of ischemia and reperfusion to a distal limb.
This stimulates neurohumoral factors that activate reperfusion injury salvage kinase (RISK) and survivor activator factor enhancement (SAFE) signaling cascades.

Main Results:

RIPC promotes cardiomyocyte survival by upregulating anti-apoptotic genes.
It also inhibits the opening of mitochondrial permeability transition pores, further protecting heart cells.

Conclusions:

Targeting RISK and SAFE pathways via RIPC shows potential for treating acute myocardial infarction.
Further clinical trials are necessary to validate RIPC's added benefit to existing treatments.