Figure 7.
NRG-1 reduces DFP-induced expression of pro-inflammatory cytokine mRNA in the brain. RNA was isolated from the hippocampus and analyzed by RT-PCR to quantify the expression of mRNA for IL-1β (A), IL-6 (B), and TNFα (C) (n = 7 to 9 biological replicates for each condition). The data are presented as mean ± SEM of the relative mRNA (in arbitrary values) levels in naive, control, DFP, and DFP + NRG-1-treated rats after normalization to GAPDH mRNA levels (**P < 0.01; ***P < 0.001; ****P < 0.0001).