Figure 5From: Excitability of Aβ sensory neurons is altered in an animal model of peripheral neuropathyA comparison the repetitive discharge characteristics of DRG cells produced by intracellular current injection. The discharge was evoked by injecting a series of depolarizing current pulses into DRG soma through the recording electrode. Differences in the discharges of the 3 categories of Aβ-fiber neuron are summarized. A. Colum bars showing the number of APs evoked by different magnitudes of intracellular depolarizing current injection. Left, 1 nA, 20 ms. Mid, 1.5 nA, 20 ms. Right, 2 nA, 20 ms. B. Representative examples of raw recordings to show the greater number of APs evoked by intracellular current injection in MS neurons. APs were evoked by current pulses of 2 nA, 20 ms. Left, control rat. Mid, neuropathic rat. Right, neuropathic rat. Details of the abbreviation are as indicated in Figures 2 and 4. Asterisks above the graph indicate a significant difference between control and neuropathic animals. *p < 0.05, **P < 0.01; ***p < 0.001.Back to article page