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Effect of ischemia on capsaicin-induced currents in IB4-positive and IB4-negative DRG neurons. A: original traces of DRG neuron response to 1 μM capsaicin in sham control and 24-h arterial occlusion. B: average data show that 24 h of arterial occlusion insult induced larger peak amplitude of inward currents in both IB4-positive and IB4-negative DRG neurons compared with sham control. *P < 0.05 vs. sham control.
