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jem Home » 1957 Archive » 1 September » 106 (3): 385
Article

THE RELATIONSHIP BETWEEN THE VASCULAR MANIFESTATIONS OF SHOCK PRODUCED BY ENDOTOXIN, TRAUMA, AND HEMORRHAGE

Benjamin W. Zweifach, Lewis Thomas, With the Technical Assistance of P. Viera and C. Mikros
Benjamin W. Zweifach
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Lewis Thomas
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DOI: 10.1084/jem.106.3.385 | Published September 1, 1957
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Abstract

The vascular effects of lethal doses of E. coli endotoxin, as observed in the mesentery of the rat, resemble the reactions of traumatic and hemorrhagic shock in the following respects: a profound inhibition of arteriolar and precapillary reactivity to topical epinephrine occurs after an initial stage of hyperreactivity; the small veins show failure to relax completely following constrictor doses of epinephrine; and the terminal vessels develop an unusual sensitivity to fluctuations in temperature of the fluid irrigating the tissue.

Rats in which tolerance to bacterial endotoxin is induced, by repeated doses given daily, become highly resistant to the lethal effects of both drum trauma and hemorrhagic shock.

However, rats in which the adaptation to traumatic shock is produced by repeated exposure to drum trauma, do not develop a significant degree of tolerance to lethal doses of endotoxin.

The injection of small non-lethal doses of bacterial endotoxin during non-lethal episodes of trauma or hemorrhage, leads to the development of irreversible shock and death.

The bearing of these findings on the problem of the relationship between endotoxin and traumatic shock is discussed.

Footnotes

    • Submitted: 29 April 1957
© 1957 Rockefeller University Press
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THE RELATIONSHIP BETWEEN THE VASCULAR MANIFESTATIONS OF SHOCK PRODUCED BY ENDOTOXIN, TRAUMA, AND HEMORRHAGE
Benjamin W. Zweifach, Lewis Thomas, With the Technical Assistance of P. Viera and C. Mikros
Journal of Experimental Medicine Sep 1957, 106 (3) 385-401; DOI: 10.1084/jem.106.3.385

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The Journal of Experimental Medicine: 215 (4)

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April 2, 2018
Volume 215, No. 4

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Online ISSN: 1540-9538
Print ISSN: 0022-1007

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