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Female rats subjected to sepsis showed less liver and lung tissue damage and less systemic endotoxemia than male rats, because of the effects of female sex hormones.

Purpose: In this study we examined the ability of selenium and vitamin E to prevent sepsis-induced changes in lung tissue. Methods: Fifty rats were divided into five groups: Group 1: Control group; Group 2: Sepsis group. In this group only cecal ligation and perforation (CLP) was performed. Group 3: Selenium group. An intraperitoneal dose of 100 µg selenium was given for the first two days followed by a daily dose of 40 µg for the next five days. CLP was performed the following day. Group 4: Selenium and vitamin E group. In addition to selenium, vitamin E was given intramuscularly in a dose of 250 mg/kg/day for seven days. CLP was performed the following day. Group 5: Vitamin E group. Vitamin E was given intramuscularly in a dose of 250 mg/kg/day for seven days. CLP was performed the following day. Results: There were significant differences between Group 2 and all other groups in terms of blood gas values (pH, pCO2, SaO2), and leukocyte, C-reactive protein (CRP) and glutathione peroxidase levels (p < 0.005). There was no statistically significant difference between groups 3, 4 and 5 in terms of histopathological changes in lung tissue (p > 0.05), but all groups were significantly different compared with Group 2 (p < 0.05). Conclusion: Sepsis-induced lung tissue damage can be reduced or prevented by pre-treatment with of selenium and/or vitamin E in a rat model.

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