Six groups of animals (n = 7–10) were included in the study: sham surgery; untreated CASP animals; CASP and subcutaneous (sc) or intraperitoneal DIBI administration, respectively; CASP and imipenem sc; and combination of DIBI and imipenem sc.
We observed a 55% reduction in leukocyte adhesion in V1 venules after sc administration of DIBI and a 40% reduction after imipenem treatment, when compared to untreated CASP animals (P < 0.05). A further reduction in the number of adherent leukocytes in V1 venules has been observed after combined treatment with DIBI and imipenem (66%). A significant decrease in bacterial count was observed from 2200 (150–64,000) to 100 (1–420) colony forming units per milliliter in blood in the sc DIBI and imipenem combination group (P = 0.0065). The bacterial count in the peritoneal lavage fluid was also significantly reduced in the sc imipenem group and the sc DIBI and imipenem combination group (P = 0.0021 and P = 0.0001, respectively) when compared to untreated CASP animals.
These findings suggest a potential role of iron chelators in the treatment of sepsis.
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