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Article: Axotomy increases the excitability of dorsal root ganglion cells with unmyelinated axons.

Full Text (publisher's website) ; Article Metadata ; Article Data (extracted)
Zhang JM; Donnelly DF; Song XJ; Lamotte RH
J. Neurophysiol., 1997


Table 1.

AP parameters in normal and nerve-injured DRG cells

Normal Axotomized t-Test
V m, mV −59.2 ± 1.9 (27) −55.6 ± 2.2 (18) NS
Input resistance, MΩ  271.0 ± 38.3 (38)  226.8 ± 34.9 (31) NS
AP threshold, mV −31.1 ± 1.9 (18) −38.2 ± 1.8 (13) P < 0.05
AP duration, ms 5.2 ± 0.5 (21) 6.1 ± 0.9 (12) NS
V max (d /dt)  108.6 ± 15.9 (12) 82.7 ± 10.1 (11) NS
  • Values are mean ± SE, with sample size in parentheses. AP, action potential; V m, resting membrane potential; NS, not significant; V max, maximum depolarization rate.


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Dorsal root ganglion cell Nerve–dorsal root ganglion spike threshold (mV) -31.1 ± 1.9 (18) -31.1 (mV) Data Table
Dorsal root ganglion cell Nerve–dorsal root ganglion spike width (ms) 5.2 ± 0.5 (21) 5.2 (ms) Data Table
Dorsal root ganglion cell Nerve–dorsal root ganglion spike max rise slope (V) 108.6 ± 15.9 (12) -- Data Table
Dorsal root ganglion cell Nerve–dorsal root ganglion resting membrane potential (mV) -59.2 ± 1.9 (27) -59.2 (mV) Data Table
Dorsal root ganglion cell Nerve–dorsal root ganglion input resistance (MΩ) 271.0 ± 38.3 (38) 271.0 (MΩ) Data Table