Document Detail


Promoting mechanisms of vascular health: circulating progenitor cells, angiogenesis, and reverse cholesterol transport.
MedLine Citation:
PMID:  19539140     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To understand and promote vascular health, we must reduce the aggression to the vessel wall and enhance the physiologic mechanisms leading to restoration of vessel wall function. Three main defense mechanisms are responsible for maintaining cardiovascular homeostasis: the regenerative production of endothelial progenitor cells, vessel wall angiogenesis, and macrophage-mediated reverse cholesterol transport. Endothelial progenitor cells can restore vessel wall function and reduce atherosclerosis. In patients with risk factors, high levels of circulating progenitor cells increase event-free survival from cardiovascular events. Mobilization of progenitor cells includes physical and pharmacological approaches, of which exercise and statin therapy have great potential. Angiogenesis is a pivotal defense mechanism to counteract hypoxia and is needed for plaque regression. However, neovessels are susceptible for intraplaque hemorrhage, particularly in diabetes mellitus. In these patients, the haptoglobin 2-2 genotype is the more affected, and may benefit from an antioxidant approach. Finally, the reverse cholesterol transport system is the main mechanism for plaque regression. In addition to high-density lipoprotein cholesterol, apolipoprotein A-I therapies and the promotion of cholesterol efflux from macrophages by the ABCA1 and ABCG1 transporter systems hold great promise and may be available for therapeutic application in the near future.
Authors:
Pedro R Moreno; Javier Sanz; Valentin Fuster
Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Journal of the American College of Cardiology     Volume:  53     ISSN:  1558-3597     ISO Abbreviation:  J. Am. Coll. Cardiol.     Publication Date:  2009 Jun 
Date Detail:
Created Date:  2009-06-22     Completed Date:  2009-07-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8301365     Medline TA:  J Am Coll Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2315-23     Citation Subset:  AIM; IM    
Affiliation:
Zena and Michael A. Wiener Cardiovascular Institute, Marie-Josee and Henry R. Kravis Cardiovascular Health Center, The Mount Sinai School of Medicine, New York, New York 10029, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult Stem Cells / physiology*
Animals
Cholesterol / metabolism*
Coronary Artery Disease / metabolism,  physiopathology
Endothelium, Vascular / physiology*
Humans
Neovascularization, Physiologic*
Regeneration*
Chemical
Reg. No./Substance:
57-88-5/Cholesterol

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


Previous Document:  JEMS Hot Products 2009 30 Innovative new products showcased at the 27th Annual EMS Today Conference ...
Next Document:  Randomized comparison of minimally invasive direct coronary artery bypass surgery versus sirolimus-e...