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Article
February 9, 1994

The Pathogenesis of Disseminated Intravascular Coagulation in Sepsis

Author Affiliations

Pittsburgh Cancer Institute Pittsburgh, Pa

JAMA. 1994;271(6):427-428. doi:10.1001/jama.1994.03510300027022
Abstract

To the Editor.  —We read with interest the excellent article by Levi et al1 reviewing the pathogenetic mechanisms of the activation of coagulation and fibrinolysis in sepsis. It is noted that plasminogen activator activity can result from the activation of the contact-activated (intrinsic) coagulation pathway. However, several studies are cited that suggest that the activation of fibrinolysis was independent of activation of the coagulation system in sepsis. The temporal relationship between the appearance of tumor necrosis factor-α (TNF-α) after endotoxin and the increase in fibrinolytic activity as well as the abolition of fibrinolytic activation in endotoxin-treated chimpanzees given pentoxifylline, suggested that TNF-α was the mediator of this effect. We would like to suggest further insight into the mechanism of TNF-induced fibrinolytic activation.In a phase I (uncontrolled) study of TNF-α in human cancer patients, we have recently demonstrated the release of tissue-type plasminogen activator (t-PA, an endothelial product as

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