Table 1

Comparison of electrophysiological properties of DRG neurons

RMP (mV)

CV (m/s)

TSI (mA)

APD (ms)


C fibers

-63.0 ± 1.5

0.6 ± 0.1

3.1 ± 0.5

1.38 ± 0.01

(n = 15)

(51.0–74.0)

(0.4–0.7)

(2.5–4.6)

(0.81–2.85)

Aδ fibers

-67.7 ± 2.4

5.9 ± 0.8

1.8 ± 0.6

0.63 ± 0.05

(n = 18)

(55.0–71.0)

(1.4–12.5)

(1.6–2.1)

(0.30–0.99)

Aβ fibers

-65.1 ± 1.8

19.6 ± 1.3

0.8 ± 0.2

0.29 ± 0.01

(n = 20)

(52.0–76.0)

(14.1–23.4)

(0.04–1.34)

(0.19–0.43)


RMP, resting membrane potential; CV, conduction velocity; TSI, threshold of stimulus intensity. APD, duration of action potential measured at its half-maximal amplitude; Values are shown as means ± SEM.

Koga et al. Molecular Pain 2005 1:13   doi:10.1186/1744-8069-1-13

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