Site-selective MK expression in the KA-damaged hippocampus. Bar graph shows the quantification of MK immunoreactivity in SP (stratum pyramidale) and Slm (stratum lacunosum moleculare) of hippocampal CA3 region 24 hr after PBS or KA (0.2 μg/mouse) injection. Data are presented as mean ± SEM. * p < 0.05, as compared with PBS. One-way ANOVA, Student-Newman-Keuls multiple comparison test.