Abstract
Objective To investigate the effects of hemo oxygenase-endogenous carbon monoxide (HO-CO) on mortality of septic shock in rats. Method Eighty healthy Sprague-Dawley rats were randomly divided into four groups (n=20) :group-C,group-Z, group-SS and group-LZ. MAP was monitored continuously,and deaths within 7 days were recorded. Evans blue in lung, ALT, AST, Cr and BUN in plasma, SOD and MDA in kidney, lung and liver,and HO-1 mRNA,HO-2 mRNA,HO-1 protein and HO-2 protein in kidney, lung, femoral artery and liver were measured.Data were analyzed usiny ANOVA. Results ① Mortality in group-SS was lower than that in group-LZ (P 0.05). Conclusions The up-regulation of HO-1 protein followed by increase CO can reduce the mortality during septic shock, while the hypotension, which is partly attributed to HO-1 protein and CO,matters little to mortality. Key words: Septic shock; Heme oxygenase; Carbon monoxide; Mortality
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