Figure 9

IL-1β in BAL (A) and in serum (D); TNF-α in BAL(B) and in serum (E); IL-6 in BAL (C) and in serum (F) of mice fed L. casei for 2 d before (d0) and after challenge (d 1, 5, 10 y 15) with S. pneumoniae. Control mice were challenged with the pathogen without previous treatment. Results are expressed as means ± SD (n = 5 or 6). Asterisks represent significant differences from the C group at the same time point (*p < 0.05, **p < 0.01).