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Circadian Influences on Myocardial Ischemia-Reperfusion Injury and Heart Failure
Tobias Eckle1,2, Júlia Bertazzo1, Tarak Nath Khatua3
1Department of Anesthesiology (T.E., J.B.), University of Colorado Anschutz Medical Campus, Aurora.
Abstract:
The impact of circadian rhythms on cardiovascular function and disease development is well established, with numerous studies in genetically modified animals emphasizing the circadian molecular clock's significance in the pathogenesis and pathophysiology of myocardial ischemia and heart failure progression. However, translational preclinical studies targeting the heart's circadian biology are just now emerging and are leading to the development of a novel field of medicine termed circadian medicine. In this review, we explore circadian molecular mechanisms and novel therapies, including (1) intense light, (2) small molecules modulating the circadian mechanism, and (3) chronotherapies such as cardiovascular drugs and meal timings. These promise significant clinical translation in circadian medicine for cardiovascular disease. (4) Additionally, we address the differential functioning of the circadian mechanism in males versus females, emphasizing the consideration of biological sex, gender, and aging in circadian therapies for cardiovascular disease.
Insights
Circadian rhythms significantly impact heart health and disease. New research explores circadian medicine, including light, drugs, and meal timing, to treat cardiovascular conditions, considering sex and age differences.
Area of Science:
- Cardiovascular Science
- Chronobiology
- Translational Medicine
Background:
- Circadian rhythms and the molecular clock are crucial in cardiovascular function.
- Existing research highlights their role in myocardial ischemia and heart failure.
- Translational studies in cardiac circadian biology are emerging.
Purpose of the Study:
- To review circadian molecular mechanisms in cardiovascular disease.
- To explore novel therapies within the field of circadian medicine.
- To address sex-based differences and aging in cardiovascular circadian therapies.
Main Methods:
- Literature review of circadian molecular mechanisms.
- Analysis of emerging therapies: intense light, small molecules, chronotherapies.
- Examination of sex, gender, and aging in circadian rhythms.
Main Results:
- Circadian molecular clock is vital for cardiovascular pathophysiology.
- Novel therapies like light, small molecules, and chronotherapy show promise.
- Differential circadian mechanisms exist between males and females.
Conclusions:
- Circadian medicine offers novel therapeutic strategies for cardiovascular disease.
- Consideration of biological sex, gender, and aging is essential for effective therapies.
- Future research should focus on translating circadian biology into clinical practice.
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