Fig. 3

Comparison of radioactivity absorption in different brain regions. I125-β-NGF absorption was higher than that of I125 in the basal forebrain, frontal cortex, cerebellum, hippocampus, and olfactory bulb; I125-β-NGF in HI group absorb obviously higher than that of I125 in the basal forebrain, frontal cortex, cerebellum, hippocampus, and olfactory bulb. No statistically significant difference were observed in other regions of the brain (*P < 0.05)