Peripheral Glutamate Receptors Are Required for Hyperalgesia Induced by Capsaicin

Figure 1

Photomicrographs showing saline-induced (a), (b) and glutamate-induced c-Fos-immunoreactive (ir) cells (c), (d) in the dorsal horn of L5 2 h after s.c. injection. (a) and (c) ipsilateral side. (b) and (d) contralateral side. Solid line indicates 100 μm.

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