CBS 2019
CBSMD教育中心
中 文

Other Relevant Articles

Abstract

Recommended Article

Robotics in percutaneous cardiovascular interventions 10-Year Coronary Heart Disease Risk Prediction Using Coronary Artery Calcium and Traditional Risk Factors: Derivation in the MESA (Multi-Ethnic Study of Atherosclerosis) With Validation in the HNR (Heinz Nixdorf Recall) Study and the DHS (Dallas Heart Study) Heart Failure With Preserved, Borderline, and Reduced Ejection Fraction: 5-Year Outcomes Guided de-escalation of antiplatelet treatment in patients with acute coronary syndrome undergoing percutaneous coronary intervention (TROPICAL-ACS): a randomised, open-label, multicentre trial Classification of Deaths in Cardiovascular Outcomes Trials Known Unknowns and Unknown Unknowns Myocardial Inflammation Predicts Remodeling and Neuroinflammation After Myocardial Infarction Management of two major complications in the cardiac catheterisation laboratory: the no-reflow phenomenon and coronary perforations Genetics and Causality of Triglyceride-Rich Lipoproteins in Atherosclerotic Cardiovascular Disease

Review Article2017 Jul 11;70(2):212-229.

JOURNAL:J Am Coll Cardiol. Article Link

Impact of Oxidative Stress on the Heart and Vasculature: Part 2 of a 3-Part Series

Münzel T, Camici GG, Kovacic JC et al. Keywords: cardiac; reactive oxygen species; vascular

ABSTRACT


Vascular disease and heart failure impart an enormous burden in terms of global morbidity and mortality. Although there are many different causes of cardiac and vascular disease, most causes share an important pathological mechanism: oxidative stress. In the failing heart, oxidative stress occurs in the myocardium and correlates with left ventricular dysfunction. Reactive oxygen species (ROS) negatively affect myocardial calcium handling, cause arrhythmia, and contribute to cardiac remodeling by inducing hypertrophic signaling, apoptosis, and necrosis. Similarly, oxidative balance in the vasculature is tightly regulated by a wealth of pro- and antioxidant systems that orchestrate region-specific ROS production and removal. Reactive oxygen species also regulate multiple vascular cell functions, including endothelial and smooth muscle cell growth, proliferation, and migration; angiogenesis; apoptosis; vascular tone; host defenses; and genomic stability. However, excessive levels of ROS promote vascular disease through direct and irreversible oxidative damage to macromolecules, as well as disruption of redox-dependent vascular wall signaling processes.