Fig. 5.
Quantification of c-Fos immunopositive cells per field in different areas of the brain.
No immunopositive cells were found in nonventilated rats. LPS-instilled rats had more immunopositive cells in the CeA and NTS than saline-instilled rats (†† P < 0.05). Saline-instilled rats receiving 7 cmH2O PEEP had more immunopositive cells in the CeA and NTS than saline-instilled rats receiving 2 cmH2O PEEP(∗ P < 0.1 and ∗∗ P < 0.05). No differences between groups were found in the PVN. Bars represent means ± SEM.