Article: Electrophysiological characteristics of vasomotor preganglionic neurons and related neurons in the thoracic spinal cord of the rat: an intracellular study in vivo.
Full Text (publisher's website) ; Article Metadata ; Article Data (extracted) Lewis DI; Coote JH Neuroscience, 2008
Table 1Comparison of passive membrane properties of identified sympathetic preganglionic neurons, with cardiac-modulated and non-cardiac-modulated interneurons recorded in their vicinity
Sympathetic preganglionic neurons | Interneurons | ||
Modulated | Non-modulated | ||
Number of neurons | 22 | 18 | 62 |
Resting membrane potential | −56.8±2.2mV(−42to−70mV) | −63.8±1.2mV(−55to−73mV) | −61.0±1.0mV(−40to−80mV) |
Cell input resistance | 56.8±8.1MΩ(26–98MΩ) | 28.8±3.9MΩ(9.6–48MΩ) | 26.3±2.1MΩ(10–62MΩ) |
Depth of location | 752±33μm(500–960μm) | 736±46μm(360–960μm) | 713±26μm(335–1100μm) |
Action potential amplitude | 53.5±2.3mV(39–72mV) | 56.6±2.6mV(45–82mV) | 54.2±1.6mV(38–80mV) |
Action potential duration | 8.98±0.6ms(4.2–13ms) | 1.86±0.2ms(1.0–3.0ms) | 1.83±0.1ms(0.7–4.2ms) |
Threshold amplitude | 5.6±0.6mV(2.6–7.9mV) | 4.67±0.3mV(3.3–7.0mV) | 4.62±0.3mV(1.3–7.0mV) |
Threshold duration | 11.0±2.1ms(4.8–27ms) | 6.22±1.1ms(2.0–14ms) | 6.40±0.7ms(1.5–13ms) |
Afterhyperpolarization amplitude | 7.6±0.6mV(4.6–12mV) | 9.18±0.9mV(5.2–17mV) | 6.66±0.5mV(0.4–16mV) |
Afterhyperpolarization duration | 164±27ms(39–420ms) | 61.7±20ms(4.4–220ms) | 44.4±6.6ms(8.7–150ms) |
Afterdepolarization amplitude | —(3.3–8.6mV,n=6) | 5.76±0.8mV(2.0–8.6mV,n=15) | 3.87±0.4mV |
Afterdepolarization duration | —(8.4–31ms,n=6) | 14.9±3.3ms(3.2–19ms,n=15) | 10.8±1.1ms |