title: Oxidative stress: a key contributor to diabetic cardiomyopathy.
abstract: Diabetes and its associated complications are major known health disorders. Diabetes mellitus increases the risk of cardiovascular morbidity and mortality by promoting cardiomyopathy. It appears to arise as a result of the diabetic state, at times independent of vascular or valvular pathology. It manifests initially as asymptomatic diastolic dysfunction, which progresses to symptomatic heart failure. The compliance of the heart wall is decreased and contractile function is impaired. The pathophysiology of diabetic cardiomyopathy is incompletely understood but appears to be multifactorial in origin. Several hypotheses have been proposed, including oxidative stress, inflammation, endothelial dysfunction, metabolic derangements, abnormalities in ion homeostasis, alterations in structural proteins, and interstitial fibrosis. Amongst these various mechanisms, an increase in reactive oxygen species, leading to oxidative stress, has received significant experimental support. This review focuses on the role of oxidative stress in the pathogenesis of diabetic cardiomyopathy and the potential of antioxidant therapy.
authors.affiliation: Department of Experimental Medicine and Biotechnology, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
authors.forename: Madhu
authors.initials: M
authors.lastname: Khullar
authors.forename: Abd Al-Rahman S
authors.initials: AA
authors.lastname: Al-Shudiefat
authors.forename: Ana
authors.initials: A
authors.lastname: Ludke
authors.forename: Gursonika
authors.initials: G
authors.lastname: Binepal
authors.forename: Pawan K
authors.initials: PK
authors.lastname: Singal
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000378:metabolism; D009202:Cardiomyopathies / Q000209:etiology / Q000378:metabolism* / Q000473:pathology; D048909:Diabetes Complications / Q000378:metabolism / Q000473:pathology; D003920:Diabetes Mellitus / Q000378:metabolism* / Q000473:pathology; D017127:Glycation End Products, Advanced / Q000378:metabolism; D006801:Humans; D018384:Oxidative Stress / Q000502:physiology*; D017382:Reactive Oxygen Species / Q000378:metabolism
chemical_list: D000975:Antioxidants; D017127:Glycation End Products, Advanced; D017382:Reactive Oxygen Species