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The Role of Oxidative Stress in Cardiac Disease: From Physiological Response to Injury Factor.

ABSTRACT: Reactive oxygen species (ROS) are highly reactive chemical species containing oxygen, controlled by both enzymatic and nonenzymatic antioxidant defense systems. In the heart, ROS play an important role in cell homeostasis, by modulating cell proliferation, differentiation, and excitation-contraction coupling. Oxidative stress occurs when ROS production exceeds the buffering capacity of the antioxidant defense systems, leading to cellular and molecular abnormalities, ultimately resulting in cardiac dysfunction. In this review, we will discuss the physiological sources of ROS in the heart, the mechanisms of oxidative stress-related myocardial injury, and the implications of experimental studies and clinical trials with antioxidant therapies in cardiovascular diseases.

SUBMITTER: D'Oria R

PROVIDER: S-EPMC7244977 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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The Role of Oxidative Stress in Cardiac Disease: From Physiological Response to Injury Factor.

D'Oria Rossella R Schipani Rossella R Leonardini Anna A Natalicchio Annalisa A Perrini Sebastio S Cignarelli Angelo A Laviola Luigi L Giorgino Francesco F

Oxidative medicine and cellular longevity 20200514

Reactive oxygen species (ROS) are highly reactive chemical species containing oxygen, controlled by both enzymatic and nonenzymatic antioxidant defense systems. In the heart, ROS play an important role in cell homeostasis, by modulating cell proliferation, differentiation, and excitation-contraction coupling. Oxidative stress occurs when ROS production exceeds the buffering capacity of the antioxidant defense systems, leading to cellular and molecular abnormalities, ultimately resulting in cardi ...[more]

PMID: 32509147

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