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Article: Secondhand smoke exposure alters K+ channel function and intrinsic cell excitability in a subset of second-order airway neurons in the nucleus tractus solitarius of young guinea pigs.

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Sekizawa S; Joad JP; Pinkerton KE; Bonham AC
Eur. J. Neurosci., 2010


Table 2.   Comparing intrinsic DS neuron properties in FA-exposed and SHS-exposed animals
 FASHSP-value
  1. Vm, resting membrane potentials; Rin, input resistance; τ, membrane time constant; Cm, cell capacitance; AP thr., action potential threshold; AP peak, peak action potentials from the baseline (−50 mV).

Vm (mV)−47.4 ± 5.0 (n = 7)−44.3 ± 1.7 (n = 7)0.283
Rin (MΩ)103.5 ± 15.9 (n = 7)119.5 ± 21.7 (n = 7)0.281
τ (ms)11.5 ± 2.9 (n = 7)12.4 ± 4.7 (n = 7)0.439
Cm (pF)116.0 ± 26.6 (n = 7)91.2 ± 22.3 (n = 7)0.245
AP thr. (mV)−38.8 ± 0.7 (n = 7)−38.6 ± 1.8 (n = 7)0.472
AP peak (mV)100.6 ± 6.5 (n = 3)106.2 ± 3.8 (n = 3)0.250

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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Nucleus of the solitary tract intrinsic cell membrane time constant (ms) 11.5 ± 2.9 (7) 11.5 (ms) Data Table
Nucleus of the solitary tract intrinsic cell cell capacitance (pF) 116.0 ± 26.6 (7) 116.0 (pF) Data Table
Nucleus of the solitary tract intrinsic cell spike threshold (mV) -38.8 ± 0.7 (7) -38.8 (mV) Data Table
Nucleus of the solitary tract intrinsic cell spike amplitude from resting (mV) 100.6 ± 6.5 (7) 100.6 (mV) Data Table
Nucleus of the solitary tract intrinsic cell resting membrane potential (mV) -47.4 ± 5.0 (7) -47.4 (mV) Data Table
Nucleus of the solitary tract intrinsic cell input resistance (MΩ) 103.5 ± 15.9 (7) 103.5 (MΩ) Data Table