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Induction of the Generalized Shwartzman Reaction in Pregnant and Nonpregnant Rats by Colchicine

Overview
Journal Am J Pathol
Publisher Elsevier
Specialty Pathology
Date 1972 Oct 1
PMID 4562795
Citations 7
Authors
G Muller-Berghaus
R Obst
Affiliations
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Abstract

The intravenous injection of colchicine (2 mg/kg body weight) into pregnant rats on the last 4 to 5 days of gestation induced disseminated intravascular coagulation, occluding glomerular capillaries with fibrin thrombi, typical of the generalized Shwartzman reaction. Thrombi did not form earlier than 9 hours after the injection of colchicine, whereas in the endotoxin-induced generalized Shwartzman reaction, thrombi were already observed 2(1/2) hours after the injection of endotoxin. The colchicine-induced generalized Shwartzman reaction could also be produced in hysterectomized "pregnant" rats. A single injection of colchicine into nonpregnant rats did not induce disseminated intravascular coagulation. If, however, fibrinolysis was inhibited with epsilon-aminocaproic acid, the colchicine-induced generalized Shwartzman reaction could also be elicited in nonpregnant rats. In this regard fibrinolysis inhibition represents one mechanism by which pregnancy prepares for the generalized Shwartzman reaction.

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References
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