Brain, astrocytes, microglia, liver, lung and spleen were obtained from mice 5 h after treatment with saline (Control), LPS, DEX or LPS+DEX to assess the relative changes in the mRNA expression of (A) Ido2-FL, (B) Ido2-v3.1, (C) Ido2-v4, (D) Ido2-v7.1, (E) Ido2-v8, (F) Ido2-v1, (G) Ido2-v2, (H) Ido2-v3.2, (I) Ido2-v5, (J) Ido2-v6 and (K) Ido2-Tot. * p ≤ 0.05 main effect of LPS. ϕ p ≤ 0.05 main effect of DEX. δ p ≤ 0.05 post hoc mean separation in the presence of a significant LPS x DEX interaction.