GFAP and schizophrenia: In contrast, GFAP mRNA was decreased in schizophrenia compared to controls overall [main effect of diagnosis: F(1,127) = 4.61, p = 0.034], but elevated in high inflammation individuals compared to low inflammation individuals [main effect of inflammation: F(1,127) = 38.47, p = 7.21E-09] with no significant interaction effect [F(1,127) = 1.46, p = 0.23].