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Updated: Nov 4, 2025
Improved Rodent Model of Myocardial Ischemia and Reperfusion Injury
Published on: March 7, 2022
Targeting circadian PER2 as therapy in myocardial ischemia and reperfusion injury
Yoshimasa Oyama1,2, Lori A Walker3, Tobias Eckle1,4
1Department of Anesthesiology, University of Colorado Denver School of Medicine, Aurora, Colorado, USA.
Abstract:
The cycle of day and night dominates life on earth. Therefore, almost all living organisms adopted a molecular clock linked to the light-dark cycles. It is now well established that this molecular clock is crucial for human health and wellbeing. Disruption of the molecular clockwork directly results in a myriad of disorders, including cardiovascular diseases. Further, the onset of many cardiovascular diseases such as acute myocardial infarction exhibits a circadian periodicity with worse outcomes in the early morning hours. Based on these observations, the research community became interested in manipulating the molecular clock to treat cardiovascular diseases. In recent years, several exciting discoveries of pharmacological agents or molecular mechanisms targeting the molecular clockwork have paved the way for circadian medicine's arrival in cardiovascular diseases. The current review will outline the most recent circadian therapeutic advances related to the circadian rhythm protein Period2 (PER2) to treat myocardial ischemia and summarize future research in the respective field.
Insights
The body's internal molecular clock is vital for cardiovascular health. Targeting the Period2 (PER2) protein offers new therapeutic strategies for treating myocardial ischemia and related cardiovascular diseases.
Area of Science:
- Chronobiology
- Cardiovascular Medicine
- Molecular Biology
Background:
- The daily light-dark cycle influences biological rhythms in most organisms.
- Disruptions to the molecular clock are linked to cardiovascular diseases, with conditions like acute myocardial infarction showing morning peaks.
- Circadian medicine is emerging as a therapeutic approach for cardiovascular conditions.
Purpose of the Study:
- To review recent advances in circadian therapeutics for myocardial ischemia.
- To focus on strategies targeting the Period2 (PER2) protein.
- To summarize future research directions in circadian medicine for cardiovascular diseases.
Main Methods:
- Review of recent scientific literature on circadian rhythms and cardiovascular disease.
- Focus on pharmacological and molecular mechanisms targeting the Period2 (PER2) protein.
- Analysis of circadian periodicity in cardiovascular events.
Main Results:
- The molecular clock is essential for maintaining cardiovascular health.
- Circadian disruption contributes to cardiovascular pathologies.
- Period2 (PER2) protein is a key target for novel cardiovascular therapies.
Conclusions:
- Targeting the molecular clock, specifically the Period2 (PER2) protein, shows promise for treating myocardial ischemia.
- Circadian medicine represents a significant advancement in cardiovascular disease treatment.
- Further research is needed to fully harness the therapeutic potential of circadian interventions.
