Motoneurone property | KX fast cells | KX slow cells | Decerebration fast cells | P value |
---|---|---|---|---|
Summary of passive (numbers 1–6 in chart) and active MN properties (numbers 7–12 in chart). Data are presented as means ± 1 s.d. for MNs in each group and include all f–I relationship types. KX, ketamine–xylazine anaesthetized; RMP, resting membrane potential; Vth, voltage threshold; AHP, after-hyperpolarization; and ePIC, estimated persistent inward current. * Significant difference between KX fast and slow motoneurones; † significant difference between KX fast and decerebration fast motoneurones. | ||||
(1) RMP (mV) | −70.9 ± 6.3 | −64.2 ± 5.9 | −61.7 ± 7.8 | † 0.005 |
(2) Vth (mV) | −51.6 ± 6.6 | −46.1 ± 11.7 | −45.6 ± 7.2 | † 0.02 |
(3) Rheobase current (nA) | 9.8 ± 3.0 | 5.9 ± 4.7 | 6.4 ± 1.8 | * 0.01 |
n = 21 | n = 7 | n = 14 | † 0.01 | |
(4) Input resistance (MΩ) | 1.8 ± 0.6 | 2.7 ± 1.2 | 2.2 ± 0.9 | * 0.01 |
n = 21 | n = 7 | n = 14 | ||
(5) AHP amplitude (mV) | 1.5 ± 1.1 | 2.7 ± 2.1 | 2.6 ± 2.2 | 0.06 |
(6) AHP ½ decay time (ms) | 13.8 ± 1.9 | 27.3 ± 6.6 | 12.7 ± 2.9 | * 0.00 |
n = 21 | n = 7 | n = 14 | ||
(7) Current at spike recruitment (nA) | 11.0 ± 3.1 | 7.4 ± 3.9 | 6.9 ± 4.0 | * 0.004 |
n = 21 | n = 7 | n = 14 | † 0.001 | |
(8) Current at spike derecruitment (nA) | 10.9 ± 3.1 | 7.0 ± 4.0 | 6.6 ± 4.2 | * 0.01 |
n = 21 | n = 7 | n = 14 | † 0.001 | |
(9) Instantaneous frequency at spike recruitment (Hz) | 26.5 ± 7.7 | 16.7 ± 7.2 | 19.0 ± 6.7 | * 0.003 |
n = 21 | n = 7 | n = 14 | † 0.003 | |
(10) Instantaneous frequency at spike derecruitment (Hz) | 24.7 ± 6.8 | 14.1 ± 5.6 | 16.3 ± 4.6 | * 0.000 |
n = 21 | n = 7 | n = 14 | † 0.000 | |
(11) Slope (Hz nA−1) depolarizing | 17.8 ± 9.7 | 15.3 ± 8.5 | 15.1 ± 11.0 | 0.6 |
n = 21 | n = 7 | n = 14 | ||
(12) ePIC (nA) | 0.2 ± 0.6 | 0.4 ± 0.3 | 0.3 ± 0.5 | 0.6 |
n = 21 | n = 7 | n = 14 |
Article: Frequency-current relationships of rat hindlimb alpha-motoneurones.
Full Text (publisher's website) ; Article Metadata ; Article Data (extracted) Button DC; Gardiner K; Marqueste T; Gardiner PF J. Physiol. (Lond.), 2006
Inferred neuron-electrophysiology data values
Neuron Type | Neuron Description | Ephys Prop | Extracted Value | Standardized Value | Content Source |
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