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Review Article
Mechanisms of Disease
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Volume 359:1261-1270 September 18, 2008 Number 12
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Platelets, Petechiae, and Preservation of the Vascular Wall
Ralph L. Nachman, M.D., and Shahin Rafii, M.D.

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Platelets help to maintain blood circulation by controlling hemorrhage after an injury to the blood-vessel wall that causes physical or biochemical disruption of the endothelium. The development of an activated platelet plug at the site of trauma seals the vascular lesion and brings about hemostasis. The membrane-oriented processes of subendothelial adhesion of platelets, granule release, cohesion, aggregation, and plug stabilization involve several well-characterized ligand–receptor interactions1 and will not be discussed further in this review.

Instead, we will focus on other functional contacts between platelets and endothelial cells. The most important of these is the maintenance of vascular integrity by the . . . [Full Text of this Article]

The Endothelial Cell–Megakaryocyte–Platelet Axis

Platelets and the VEGF System

Biologic Characteristics of Junctions

Endothelial-Cell Stability

Clinical Implications

Conclusions


Source Information

From Weill Cornell Medical College, New York.

Address reprint requests to Dr. Nachman at Weill Cornell Medical College, 1300 York Ave., New York, NY 10065, or at rlnachm@med.cornell.edu.


Related Letters:

Platelets and the Vascular Wall
Mirakaj V., Köhler D., Rosenberger P., Nachman R. L., Rafii S.
Extract | Full Text | PDF  
N Engl J Med 2008; 359:2727-2728, Dec 18, 2008. Correspondence

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