Complement Component C5a Mediates Hemorrhage-Induced Intestinal Damage

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Complement component C5a mediates hemorrhage-induced intestinal damage.

BACKGROUND Complement has been implicated in the pathogenesis of intestinal damage and inflammation in multiple animal models. Although the exact mechanism is unknown, inhibition of complement prevents hemodynamic alterations in hemorrhage. MATERIALS AND METHODS C57Bl/6, complement 5 deficient (C5-/-) and sufficient (C5+/+) mice were subjected to 25% blood loss. In some cases, C57Bl/6 mice we...

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Complement C5a-Induced Changes in Neutrophil Morphology During Inflammation.

The complement and neutrophil defence systems, as major components of innate immunity, are activated during inflammation and infection. For neutrophil migration to the inflamed region, we hypothesized that the complement activation product C5a induces significant changes in cellular morphology before chemotaxis. Exposure of human neutrophils to C5a dose- and time-dependently resulted in a rapid...

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ژورنال

عنوان ژورنال: Journal of Surgical Research

سال: 2008

ISSN: 0022-4804

DOI: 10.1016/j.jss.2008.02.010