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. 2008 May 1;586(Pt 13):3245–3252. doi: 10.1113/jphysiol.2008.154450

Figure 4. Overlapping response to low pH and capsaicin in DRG neurones.

Figure 4

A, the neurones that responded to pH 6.0 with a sustained inward current also responded to capsaicin. The overlap was similar for DRG neurones innervating the red and white muscle. B, prior exposure to capsaicin increased the amplitude of the proton-evoked currents in DRG neurones innervating the red and white muscles. *P < 0.05 compared with pH 6.0 without exposure to capsaicin. C and D show that prior exposure to protons increased the proportion of DRG neurones responding to capsaicin, and increased the amplitude of the capsaicin-induced currents in the neurones. *P < 0.05 compared with capsaicin without exposure to pH 6.0.