Table 1 Intrinsic properties of CSF-cNs along the rostro-caudal central canal axis
Spinal Segment | Cervical (C) | Thoracic (T) | Lumbar (T) | |
---|---|---|---|---|
Input resistance | Rm | 3.6 ± 2.1 GΩ | 3.6 ± 1.9 GΩ | 4.1 ± 12.1 GΩ |
Kruskal-Wallis’s test: : χ2 = 5.5711; degree of freedom (df)=2; p = 0.0617 Post hoc pairwise Wilcoxon rank sum test: C vs. T, p = 0.826, ns; C vs. L, p = 0.069, ns & T vs. L, p = 0.069, ns | ||||
Membrane capacitance | Cm | 5.6 ± 2.9 pF | 5.0 ± 2.5 pF | 6.2 ± 2.9 pF |
Kruskal-Wallis’s test: χ2 = 25.722; df=2; p = 2.597.10-6 Post hoc pairwise Wilcoxon rank sum test: C vs. T, p = 0.0064, **; C vs. L, p = 0.0242, * & T vs. L, p = 1.3.10-6, *** | ||||
Membrane time constant | τm | 92 ± 58 µs | 86 ± 49 µs | 90 ± 49 µs |
Kruskal-Wallis’s test: χ2 = 3.8282; df = 2; p = 0.1475 Post hoc pairwise Wilcoxon rank sum test: C vs. T, p = 0.40, ns; C vs. L, p = 0.57, ns & T vs. L, p = 0.12, ns | ||||
N (animals), n (cells) | 50, 227 | 65, 239 | 70, 193 | |
Resting Membrane Potential | RMP | –46 ± 4 mV | –45 ± 6 mV | –61 ± 19 mV |
Kruskal-Wallis’s test: χ2 = 18.368; df = 2; p = 1.027.10−5 Post hoc pairwise Wilcoxon rank sum test: C vs. T, p = 0.73535, ns; C vs. L, p = 0.00779, * & T vs. L, p = 0.00025, *** | ||||
N (animals), n (cells) | 6, 20 | 10, 41 | 9, 64 |