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Oxidative stress in congestive heart failure
P K Singal1, N Khaper, F Farahmand
1Institute of Cardiovascular Sciences, St. Boniface General Hospital Research Centre and Department of Physiology, Faculty of Medicine, University of Manitoba, 351 Tache Avenue, R3022, Winnipeg MB R2H 2A6, Canada. psingal@sbrc.umanitoba.ca
Current Cardiology Reports
|September 12, 2000
Summary
Oxidative stress plays a key role in heart failure development. This review details oxygen free radicals and antioxidant defenses, supporting oxidative stress
Area of Science:
- Cardiology
- Biochemistry
- Pathophysiology
Background:
- Heart failure is a complex syndrome involving neurohumoral and subcellular cardiac alterations.
- Oxidative stress is increasingly recognized as a significant factor in heart failure pathogenesis.
- Changes in neurohormones, cytokines, nitric oxide, and inflammatory cells are linked to oxidative stress.
Purpose of the Study:
- To provide a clear description of oxygen free radicals.
- To explain the antioxidant defense system.
- To review evidence linking oxidative stress to heart failure development.
Main Methods:
- Review of existing scientific literature.
- Analysis of studies on experimental animals and human subjects.
- Synthesis of evidence on oxidative stress in heart failure.
Main Results:
- Oxidative stress is implicated in the cellular and molecular mechanisms of heart failure.
- Evidence from animal and human studies supports the role of oxidative stress.
- The article describes the fundamental components of oxidative stress and antioxidant systems.
Conclusions:
- Oxidative stress is a critical contributor to the pathogenesis of heart failure.
- Understanding oxygen free radicals and antioxidant defenses is essential for comprehending heart failure.
- Further research into antioxidant strategies may offer therapeutic potential.