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Article: Electrophysiological properties of dural afferents in the absence and presence of inflammatory mediators.

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Harriott AM; Gold MS
J. Neurophysiol., 2009


TABLE 1.

Differences in baseline active electrophysiological properties between dural (n = 26) and temporalis muscle (TM) afferents (n = 25)

Em, mV Rin, MΩ Cm, pF AP Duration, ms AP Overshoot, mV AHP Magnitude, mV τAHP, ms Rate Rise, dV/dt Rate Fall, dV/dt
Dura −71.3 ± 1.6 473 ± 57.3 23.9 (19.2 to 31.5) 2.6 ± 0.3 45.9 ± 1.2 −9.4 ± 0.9 95.0 ± 13.0 124.5 ± 17.4 −66.1 ± 4.0
TM −68.3 ± 1.7 786 ± 79.0‡ 24.7 (19.6 to 26.1) 3.1 ± 0.3 41.7 ± 1.5‡ −14.4 ± 1.1‡ 56.3 ± 9.1‡ 116.7 ± 13.0 −56.1 ± 8.0

  • Values are means ± SE, except for Cm, which is expressed as median (25th to 75th percentile). Em, resting membrane potential; Rin, input resistance resistance; Cm, membrane capacitance; AP, action potential; AHP, after hyperpolarization; τAHP, time constant for the decay of the AHP; Rate Rise, the maximal rate of rise of the AP; Rate Fall, the maximal rate of fall of the AP.

  • ↵‡ Indicates significant differences, where P < 0.05, Student's t-test.


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Other other (dV/dt) -66.1 ± 4.0 -66.1 (None) Data Table
Trigeminal nucleus intrinsic cell resting membrane potential (mV) -68.3 ± 1.7 -68.3 (mV) Data Table
Trigeminal nucleus intrinsic cell input resistance (MΩ) 786.0 ± 79.0 786.0 (MΩ) Data Table
Trigeminal nucleus intrinsic cell cell capacitance (pF) 24.7 24.7 (pF) Data Table
Trigeminal nucleus intrinsic cell spike width (ms) 3.1 ± 0.3 3.1 (ms) Data Table
Trigeminal nucleus intrinsic cell spike peak (mV) 41.7 ± 1.5 41.7 (mV) Data Table
Trigeminal nucleus intrinsic cell AHP amplitude (mV) -14.4 ± 1.1 14.4 (mV) Data Table
Trigeminal nucleus intrinsic cell other (ms) 56.3 ± 9.1 56.3 (None) Data Table
Trigeminal nucleus intrinsic cell other (dV/dt) 116.7 ± 13.0 116.7 (None) Data Table
Other resting membrane potential (mV) -71.3 ± 1.6 -71.3 (mV) Data Table
Trigeminal nucleus intrinsic cell other (dV/dt) -56.1 ± 8.0 -56.1 (None) Data Table
Other input resistance (MΩ) 473.0 ± 57.3 473.0 (MΩ) Data Table
Other cell capacitance (pF) 23.9 23.9 (pF) Data Table
Other spike width (ms) 2.6 ± 0.3 2.6 (ms) Data Table
Other spike peak (mV) 45.9 ± 1.2 45.9 (mV) Data Table
Other AHP amplitude (mV) -9.4 ± 0.9 9.4 (mV) Data Table
Other other (ms) 95.0 ± 13.0 95.0 (None) Data Table
Other other (dV/dt) 124.5 ± 17.4 124.5 (None) Data Table