Fig. 4
PV positive neurons in each brain region of LETO and OLETF rats. Representative immunohistochemical images of the amygdala (a and b), hippocampus (c and d), and medial prefrontal cortex (e and f) of LETO (a, c, and e) and OLETF (b, d, and f) rats. High magnification images of the square area in each image are presented. Arrows indicate PV positive neurons; arrows with L or S indicate large or small PV positive neurons in the amygdala, respectively. Scale bars = 50 µm. The densities of PV positive neurons in each region of LETO and OLETF rats (g). LA: lateral amygdala; BLA: basolateral amygdala; CA1–3: cornu ammonis area 1–3; DG: dentate gyrus; ACC: anterior cingulate cortex; PL: prelimbic cortex; IL: infralimbic cortex; PV+: parvalbumin positive. Values represent mean ± standard error of means