Fig. 4

Glial reactivity in mice on low or adequate α-linolenic acid diet after traumatic brain injury. a Traumatic brain injury (TBI) resulted in distinct increase in Iba-1-positive cells in the peri-contusional cortex at 3 days post-injury. Diets producing different brain docosahexaenoic acid (DHA) contents did not affect the density of Iba-1-positive cells at the injury site. b Cortical GFAP immunofluorescence increased 3 days after TBI was more in mice on low α-linolenic acid (ALA) diet that have less brain DHA than the adequate ALA group. n = 3–4. **p < 0.01 vs control TBI. Data are expressed as mean ± SEM. Scale bar 100 μm