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Article: Electrophysiological analysis of dorsal root ganglion neurons pre- and post-coexpression of green fluorescent protein and functional 5-HT3 receptor.

Full Text (publisher's website) ; Article Metadata ; Article Data (extracted)
Smith GM; Berry RL; Yang J; Tanelian D
J. Neurophysiol., 1997


Table 1.

Electrophysiological characteristics of DRG neurons

C GFP− GFP+
n 5 8 7
Resting potential, mV −54.2 ± 3.2 −63.3 ± 2.7 −61.6 ± 3.1
Action potential threshold, mV −33.1 ± 2.4 −36.1 ± 2.3 −31.5 ± 4.1
Action potential duration, mV 2.8 ± 0.4 3.1 ± 0.7 2.3 ± 0.3
Action potential amplitude, mV 87 ± 3.3 76 ± 3.6 72 ± 7.4
Series resistance, MΩ 10.2 ± 2.3 12.7 ± 3.1 13.3 ± 5.6
Whole cell resistance, MΩ 226 ± 62 113 ± 11 238 ± 65
Whole cell capacitance, pF 26 ± 6.5 31 ± 3.2 18.6 ± 3.8
Cell body diameter, μm 24.2 ± 2.8 25.8 ± 0.8 23.4 ± 2.8

  • Values are means ± SD. C, control; GFP−, green fluorescent protein negative; GFP+, green fluorescent protein positive.


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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 spike threshold (mV) -33.1 ± 2.4 -33.1 (mV) Data Table
Dorsal root ganglion cell AHP duration (mV) 2.8 ± 0.4 2.8 (ms) Data Table
Dorsal root ganglion cell spike amplitude (mV) 87.0 ± 3.3 87.0 (mV) Data Table
Dorsal root ganglion cell access resistance (MΩ) 10.2 ± 2.3 10.2 (MΩ) Data Table
Dorsal root ganglion cell input resistance (MΩ) 226.0 ± 62.0 226.0 (MΩ) Data Table
Dorsal root ganglion cell cell capacitance (pF) 26.0 ± 6.5 26.0 (pF) Data Table
Dorsal root ganglion cell cell diameter (μm) 24.2 ± 2.8 24.2 (um) Data Table
Dorsal root ganglion cell resting membrane potential (mV) -54.2 ± 3.2 -54.2 (mV) Data Table