Document Detail


Atherosclerosis and oxidant stress: the end of the road for antioxidant vitamin treatment?
MedLine Citation:
PMID:  17484034     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Extensive experimental data have revealed a central role for oxidative stress in atherogenesis and suggested a potential role for 'antioxidant' treatment in cardiovascular disease (CVD) [1-11]. Experimental data, however, have not translated into clinical benefit: most antioxidant vitamin trials have failed to reduce cardiovascular morbidity and mortality [12]. Moreover, recent clinical trials have suggested that mono-therapy with certain antioxidant vitamins like vitamin E may, in fact, be detrimental [13]. As a result of the disappointing outcome of 'antioxidant' vitamin trials, some authors have questioned both the utility of 'antioxidant' treatment in CVD and the supposedly central role of oxidative stress in atherogenesis [14-19]. Other investigators, however, sustain that the beneficial effects of lipid lowering and anti-hypertensive treatment are at least, in part, due to their 'antioxidant' properties, in addition to their specific pharmacological properties [20, 21]. Oxidant stress plays a pivotal role in atherogenesis, however, the clinical promise of antioxidant vitamins has failed to translate into clinical benefit. Increasing evidence suggests that more rigorous clinical trial designs are necessary to effectively divulge antioxidant utility and that a multifaceted antioxidant approach to atherosclerosis may yield the most clinical reward. This article reviews currently available evidence on the role of oxidant stress in atherosclerosis, analyzes the results of large anti-oxidant trials, and suggests ways to investigate the true role of antioxidant treatment in the clinical setting.
Authors:
Mika J Thomson; Valentina Puntmann; Juan-Carlos Kaski
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Cardiovascular drugs and therapy / sponsored by the International Society of Cardiovascular Pharmacotherapy     Volume:  21     ISSN:  0920-3206     ISO Abbreviation:  Cardiovasc Drugs Ther     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-05-24     Completed Date:  2007-10-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8712220     Medline TA:  Cardiovasc Drugs Ther     Country:  United States    
Other Details:
Languages:  eng     Pagination:  195-210     Citation Subset:  IM    
Affiliation:
Cardiac and Vascular Sciences, St George's, University of London, London, UK.
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MeSH Terms
Descriptor/Qualifier:
Animals
Antioxidants / adverse effects,  therapeutic use*
Atherosclerosis / drug therapy*,  metabolism,  physiopathology
Endothelium, Vascular / drug effects,  physiopathology
Humans
Models, Biological
Oxidative Stress / drug effects
Reactive Oxygen Species / metabolism*
Treatment Failure
Vitamin E / adverse effects,  therapeutic use*
Vitamins / adverse effects,  therapeutic use
Chemical
Reg. No./Substance:
0/Antioxidants; 0/Reactive Oxygen Species; 0/Vitamins; 1406-18-4/Vitamin E

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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