Figure 7: Image analysis of relative density of calbindin D28-k (a), parvalbumin (b), and calretinin (c) immunoreactivity (IR) changes in the hippocampal region (CA1, CA3, and dentate gyrus) of sham control (SC) (a, d, g), radiofrequency-exposed (E1.6) (b, e, h), and ginseng-treated (G1.6) (c, f, i) groups. Significant decrease in the IR was noted in E1.6 in the various different subfields of the hippocampus as compared with SC. The data shown are the mean ± SD values obtained from three different experiments. , , , and , compared with SC.