Figure 7. Measurement of glial activation in the aged brain and brains of animals fed GF diets. (A) Representative western blot of iba-1 levels in the brains of aged rats subjected to control or GF diets. C, control; GF1, GF2, GF3, GF diets. Actin is used as a control for loading. (B) Quantified levels of iba-1 in the brains of aged rats following feeding control diets or diets enriched with GF formulas. (C) Quantified levels of iba-1 in the brains of aged rats following feeding control diets or diets enriched with GF formulas. N = 20 per group. P<0.001.