title: Edaravone (3-methyl-1-phenyl-2-pyrazolin-5-one), a novel free radical scavenger, for treatment of cardiovascular diseases.
abstract: Edaravone (3-methyl-1-phenyl-2-pyrazolin-5-one), a strong novel free radical scavenger, is used for treatment of patients with acute brain infarction. Edaravone has preventive effects on myocardial injury following ischemia and reperfusion in patients with acute myocardial infarction. Antioxidant actions of edaravone include enhancement of prostacyclin production, inhibition of lipoxygenase metabolism of arachidonic acid by trapping hydroxyl radicals, inhibition of alloxan-induced lipid peroxidation, and quenching of active oxygen, leading to protection of various cells, such as endothelial cells, against damage by reactive oxygen species (ROS). Recently, we have shown that edaravone improves endothelial function through a decrease in ROS in smokers. From a clinical perspective, it is important to select an appropriate drug that is effective in improving endothelial function in patients with cardiovascular diseases. The novel free radical scavenger edaravone may represent a new therapeutic intervention for endothelial dysfunction in the setting of atherosclerosis, chronic heart failure, diabetes mellitus, or hypertension. This review focuses on clinical findings and on putative mechanisms underlying the beneficial effects of the antioxidative agent edaravone on the artherosclerotic process in patients with cardiovascular diseases.
authors.affiliation: Department of Cardiovascular Physiology and Medicine, Graduate School of Biomedical Sciences, Hiroshima University, Japan. yhigashi@hiroshima-u.ac.jp
authors.forename: Yukihito
authors.initials: Y
authors.lastname: Higashi
authors.forename: Daisuke
authors.initials: D
authors.lastname: Jitsuiki
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Chayama
authors.forename: Masao
authors.initials: M
authors.lastname: Yoshizumi
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000494:pharmacology; D000983:Antipyrine / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000494:pharmacology / Q000627:therapeutic use; D002318:Cardiovascular Diseases / Q000188:drug therapy* / Q000209:etiology; D002561:Cerebrovascular Disorders / Q000188:drug therapy; D000077553:Edaravone; D004730:Endothelium, Vascular / Q000502:physiology; D016166:Free Radical Scavengers / Q000627:therapeutic use*; D006801:Humans; D018384:Oxidative Stress; D017382:Reactive Oxygen Species / Q000378:metabolism
chemical_list: D000975:Antioxidants; D016166:Free Radical Scavengers; D017382:Reactive Oxygen Species; D000077553:Edaravone; D000983:Antipyrine