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IL-6 (A) and haptoglobin (B) serum levels. IL-6 concentration was determined at: 2, 6, and 24 h and haptoglobin level was measured at 24 h following rmLF injection. The results are presented as the mean value of seven mice per group. Statistics: (A) Control 2 h versus rmLF 2 h, P<0.05; control 6 h versus rmLF 6 h, NS (P=0.69); control 24 h versus rmLF 24 h, UD. (B) Control versus rmLF, P<0.005. UD, undetectable; IL, interleukin.
