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Article: Distinctive neurophysiological properties of embryonic trigeminal and geniculate neurons in culture.

Full Text (publisher's website) ; Article Metadata ; Article Data (extracted)
Grigaliunas A; Bradley RM; MacCallum DK; Mistretta CM
J. Neurophysiol., 2002


Table 2.

Passive membrane and action potential properties of cultured embryonic trigeminal and geniculate embryonic ganglion neurons

Ganglion Cell Property Trigeminal n = 173 Geniculate n = 89 PValue (t-test)
Average soma diameter, μm 29 ± 3 27 ± 5 0.002
Resting membrane potential, mV −59 ± 5 −57 ± 4 0.004
Input resistance, MΩ 392 ± 169 525 ± 221 <0.001
Membrane capacitance, pF 69 ± 19 59 ± 18 <0.001
Time constant, ms 27 ± 13 30 ± 12 0.1
Action potential amplitude, mV 105 ± 7 99 ± 9 <0.001
Action potential half-duration, ms 3.1 ± 0.7 2.2 ± 0.7 <0.001
Action potential maximal left slope, V/s 127 ± 34 145 ± 39 <0.001
Action potential maximal right slope, V/s −40 ± 8 −47 ± 13 <0.001
Action potential 10–90% decay time, ms 3.2 ± 0.7 2.9 ± 0.9 0.014
Threshold of excitation, mV −36 ± 4 −39 ± 4 <0.001
Threshold of excitation, pA 128 ± 41 49 ± 30 <0.001
Multiple spiking, % 0 35
Afterhyperpolarization amplitude, mV −11 ± 2 −9 ± 3 <0.001
Afterhyperpolarization duration, ms 135 ± 91 88 ± 55 <0.001
  • Values are means ± SD.


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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 max rise slope (V/s) 127.0 ± 34.0 (173) 127.0 (mV/ms) Data Table
Dorsal root ganglion cell spike max decay slope (V/s) -40.0 ± 8.0 (173) 40.0 (mV/ms) Data Table
Dorsal root ganglion cell spike decay time (ms) 3.2 ± 0.7 (173) 3.2 (ms) Data Table
Dorsal root ganglion cell spike threshold (mV) -36.0 ± 4.0 (173) -36.0 (mV) Data Table
Dorsal root ganglion cell rheobase (pA) 128.0 ± 41.0 (173) 128.0 (pA) Data Table
Dorsal root ganglion cell AHP amplitude (mV) -11.0 ± 2.0 (173) 11.0 (mV) Data Table
Dorsal root ganglion cell AHP duration (ms) 135.0 ± 91.0 (173) 135.0 (ms) Data Table
Dorsal root ganglion cell cell diameter (μm) 29.0 ± 3.0 (173) 29.0 (um) Data Table
Dorsal root ganglion cell resting membrane potential (mV) -59.0 ± 5.0 (173) -59.0 (mV) Data Table
Dorsal root ganglion cell input resistance (MΩ) 392.0 ± 169.0 (173) 392.0 (MΩ) Data Table
Dorsal root ganglion cell cell capacitance (pF) 69.0 ± 19.0 (173) 69.0 (pF) Data Table
Dorsal root ganglion cell membrane time constant (ms) 27.0 ± 13.0 (173) 27.0 (ms) Data Table
Dorsal root ganglion cell spike amplitude (mV) 105.0 ± 7.0 (173) 105.0 (mV) Data Table
Dorsal root ganglion cell spike half-width (ms) 3.1 ± 0.7 (173) 3.1 (ms) Data Table