Fig. 4
From: Effects of Hypericum scabrum extract on dentate gyrus synaptic plasticity in high fat diet-fed rats
Time-dependent changes of long-term potentiation (LTP) of the excitatory postsynaptic potentials (EPSP) slope (a) and population spike (PS) (b) amplitudes in dentate gyrus (DG) granular cell synapses in response to perforant pathway (PP) stimulation after a high-frequency stimulation (HFS). Data are shown as means ± SEM % of baseline. *P < 0.05; **P < 0.01 (compared with control); ##P < 0.01; ###P < 0.001 (compared with HFD)