The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.
Oxidative stress and heart failure
Abstract
Oxidative stress, defined as an excess production of reactive oxygen species (ROS) relative to antioxidant defense, has been shown to play an important role in the pathophysiology of cardiac remodeling and heart failure (HF). It induces subtle changes in intracellular pathways, redox signaling, at lower levels, but causes cellular dysfunction and damage at higher levels. ROS are derived from several intracellular sources, including mitochondria, NAD(P)H oxidase, xanthine oxidase, and uncoupled nitric oxide synthase. The production of ROS is increased within the mitochondria from failing hearts, whereas normal antioxidant enzyme activities are preserved. Chronic increases in ROS production in the mitochondria lead to a catastrophic cycle of mitochondrial DNA (mtDNA) damage as well as functional decline, further ROS generation, and cellular injury. ROS directly impair contractile function by modifying proteins central to excitation-contraction coupling. Moreover, ROS activate a broad variety of hypertrophy signaling kinases and transcription factors and mediate apoptosis. They also stimulate cardiac fibroblast proliferation and activate the matrix metalloproteinases, leading to the extracellular matrix remodeling. These cellular events are involved in the development and progression of maladaptive myocardial remodeling and failure. Oxidative stress is also involved in the skeletal muscle dysfunction, which may be associated with exercise intolerance and insulin resistance in HF. Therefore, oxidative stress is involved in the pathophysiology of HF in the heart as well as in the skeletal muscle. A better understanding of these mechanisms may enable the development of novel and effective therapeutic strategies against HF.
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Cites
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A Randomized Trial of the Angiotensin-Receptor Blocker Valsartan in Chronic Heart Failure
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Mitochondrial dysfunction and oxidative stress in heart disease
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Givertz, M. M., Anstrom, K. J., Redfield, M. M., Deswal, A., Haddad, H., Butler, J., Tang, W. H. W., Dunlap, M. E., LeWinter, M. M., Mann, D. L., et al. (2015) · Circulation · doi:10.1161/circulationaha.114.014536 · Cited by 296
PFAS Environmental Pollution and Antioxidant Responses: An Overview of the Impact on Human Field
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Metadata
- Authors
- Tsutsui, H., Kinugawa, S., & Matsushima, S.
- Venue
- American Journal of Physiology-Heart and Circulatory Physiology
- Publisher
- American Physiological Society
- Published
- 2011-12
- Volume
- 301
- Issue
- 6
- Pages
- H2181-H2190
- ISSN
- 0363-6135 (ISSN-L)
- 1522-1539
- OpenAlex
- W2147653980
- Cited by
- 1,231
- References
- 13
- FWCI
- 30.05
- Type
- journal article
- Language
- en
- Open access
- closed
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