Top left panels show a conceptualized profile of the temporal changes in cytokines / chemokines, astrocytes, and microglia / macrophages following TBI, and how the neuroinflammatory responses are heightened and prolonged in the presence of beta-amyloid (Aβ) pathology (Webster, Van Eldik et al. 2015). In the figure, potential areas for therapeutic intervention targeting glial activation and innate immunity are highlighted in the yellow boxes. APP=amyloid precursor protein, BBB=blood-brain barrier, ROS/RNS=reactive oxygen species/reactive nitrogen species.