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. Author manuscript; available in PMC: 2009 Apr 22.
Published in final edited form as: Neuroscience. 2008 Feb 19;153(1):279–288. doi: 10.1016/j.neuroscience.2008.02.006

Table 2.

Resting and high K+ evoked changes in electrophysiological properties of DRG neurons from naïve and inflamed rats

Group Subpop. (n) Vrest (mV) Rin (MΩ) Tstable (ms) V(K+) (mV) AP # Recov (s)
Naïve Small(10) −61 ± 3.7 362 ± 84 986 ± 322 −16.7 ± 1.0 4.5 (1,15) 1.5 ± 0.2
Medium(10) −60 ± 4.1 357 ± 83 701 ± 133 −18.8 ± 4.2 1 (0,4) 1.2 ± 0.1
Inflamed Small(9) −63 ± 3.9 599 ± 192 689 ± 66 −16.6 ± 1.8 1 (0,7) 1.3 ± 0.24
Medium(15) −64 ± 2.8 596 ± 90 1063 ± 117 −18.7 ± 1.3 1 (0,3) 1.5 ± 0.11

Subpop: subpopulation; n: number of neurons studied; Vrest: resting membrane potential; Rin: Input resistance at rest; Tstable: time to membrane stabilization at new membrane potential in the presence of 30 mM K+, V(K+): Membrane potential in the presence of 30 mM K+; AP#: Median number of action potentials evoked in response to 30 mM K+ application, numbers in parentheses are 25th and 75th percentile (all other data are mean ± SEM); Recov: time of recovery to 50% of resting membrane potential following wash of 30 mM K+; Small: small diameter DiI+ neurons, Medium: Medium diameter DiI+ neurons.