Figure 4From: An in vivo mouse model of long-term potentiation at synapses between primary afferent C-fibers and spinal dorsal horn neurons: essential role of EphB1 receptor Time course of c-Fos expression in the mouse DH after HFS in vivo. Examples of Fos-immunoreactive neurons are shown in A and data summarized in B. Five groups of mice (n = 5 each group) were tested and examined, the sham group received no HFS and the others received HFS without or with MK-801 treatment. ** p < 0.01 indicates significant differences compared with the sham. ## p < 0.01 indicate significant difference compared with the time point at 3 h after HFS.Back to article page