Effect of β1-agonist dobutamine on neuronal cell death following lipopolysaccharide-induced sensitization to OGD in murine hippocampal slice cultures from TNFR1-/- mice. A. Temporal development of cell damage (mean fluorescence intensity (MFI)) after 15 min oxygen-glucose deprivation (OGD), LPS (1 μg/ml) for 24 h + 15 min oxygen-glucose deprivation (OGD) and β1-agonist dobutamine (50 μM) + 24 h LPS + OGD in murine hippocampal slice cultures from TNFR1-/-mice. The same culture is shown at repeated time points of recovery. B. Cell death (MFI) after 15 min OGD (hatched bars), 24 h LPS+ 15 min OGD (white bars) and dobutamine (50 μM) + 24 h LPS + 15 min OGD (shaded bars) at repeated points of recovery. Data are shown as means ± SEM with n = 18. Dobutamine (50 μM) + LPS + OGD versus LPS + OGD, p < 0.01 in the CA1. Repeated-measures ANOVA with post hoc Bonferroni.