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. 2012 Jul 10;3:247. doi: 10.3389/fphys.2012.00247

Figure 2.

Figure 2

Overlapping response to low pH and capsaicin in DRG neurons. (A) The neurons that responded to pH 6.0 with a sustained inward current also responded to capsaicin. The overlap was similar for DRG neurons innervating the red and white muscle. (B) Prior exposure to capsaicin increased the amplitude of the proton-evoked currents in DRG neurons innervating the red and white muscles. *P < 0.05 compared with pH 6.0 without exposure to capsaicin. (C,D) Show that prior exposure to protons increased the proportion of DRG neurons responding to capsaicin, and increased the amplitude of the capsaicin-induced currents in the neurons. *P < 0.05 compared with capsaicin without exposure to pH 6.0. Reprinted from Xing et al. (2008b).