Acta anaesthesiologica Scandinavica · 1996
Effects on complement activation and cytokine (TNF-alpha and IL-8) release of infusion of anti-TNF-antibodies or a xanthine derivative (HWA 138) in septic baboons.
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Bengtsson A, Redl H, Schlag G, Mollnes T E, Högåsen K
Аннотация
BACKGROUND: Sepsis and septic shock lead to activation of the complement cascade and to the release of pro-inflammatory cytokines.
METHODS: The effects of E coli infusion and of infusion of anti-TNF antibodies and a xanthine derivative (HWA 138) on complement activation and cytokine release was evaluated in 17 baboons. All animals received 5 x 10(8) live bacteria per kg body weight. Five animals received only bacteria, five received in addition 0.5 mg per kg body weight of anti-TNF-antibody, and seven received an infusion of 6 mg per kg body weight of HWA 138 in addition to the bacteria.
RESULTS: In baboons receiving 5 x 10(8) live E coli per kg body weight increased plasma levels of TCC, TNF-alpha and IL-8 were found. The release of TNF-alpha was lower in the group receiving HWA 138 at 2 h after the infusion. In baboons receiving an infusion of anti-TNF antibody the concentration of IL-8 was lower at 2 and 4 h than in animals receiving just E coli or HWA 138.
CONCLUSION: Infusion of anti-TNF-antibody before E coli infusion will decrease the formation of IL-8. Infusion of HWA 138 before the E coli infusion will also inhibit the formation of TNF-alpha.
METHODS: The effects of E coli infusion and of infusion of anti-TNF antibodies and a xanthine derivative (HWA 138) on complement activation and cytokine release was evaluated in 17 baboons. All animals received 5 x 10(8) live bacteria per kg body weight. Five animals received only bacteria, five received in addition 0.5 mg per kg body weight of anti-TNF-antibody, and seven received an infusion of 6 mg per kg body weight of HWA 138 in addition to the bacteria.
RESULTS: In baboons receiving 5 x 10(8) live E coli per kg body weight increased plasma levels of TCC, TNF-alpha and IL-8 were found. The release of TNF-alpha was lower in the group receiving HWA 138 at 2 h after the infusion. In baboons receiving an infusion of anti-TNF antibody the concentration of IL-8 was lower at 2 and 4 h than in animals receiving just E coli or HWA 138.
CONCLUSION: Infusion of anti-TNF-antibody before E coli infusion will decrease the formation of IL-8. Infusion of HWA 138 before the E coli infusion will also inhibit the formation of TNF-alpha.