Article: Ionic currents underlying rhythmic bursting of ventral mossy cells in the developing mouse dentate gyrus.
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Jinno S; Ishizuka S; Kosaka T
Eur. J. Neurosci., 2003
Table 1. Comparison of electrophysiological properties of three subtypes of hilar mossy cells in the mouse dentate gyrus | | Dorsal (Type I) | Ventral | P-value |
|---|
| Bursting (Type II) | Non-bursting (Type III) | I vs. II | I vs. III | II vs. III |
|---|
| Number of cells | 27 | 35 | 12 | | | |
| Age (days) | 14.3 ± 0.3 | 15.0 ± 0.5 | 15.8 ± 0.7 | - | - | - |
| Spontaneous activities (control) |
| Cells with spontaneous bursting (%) | 19 | 71 | 0 | | | |
| Spontaneous burst frequency (bursts/min) | 0.15 ± 0.07 | 5.17 ± 0.94 | 0 | <0.001 | - | <0.001 |
| Intrinsic activities (DNQX, D-APV and BMI) |
| Cells with intrinsic bursting (%) | 0 | 100 | 0 | | | |
| Intrinsic burst frequency (bursts/min) | 0 | 9.37 ± 1.37 | 0 | <0.001 | - | <0.001 |
| Basic membrane properties |
| Vm mean (mV) | -60.6 ± 0.6 | -60.2 ± 0.4 | -61.5 ± 0.8 | - | - | - |
| Input resistance (MΩ)* | 232.3 ± 10.4 | 220.4 ± 13.8 | 182.8 ± 11.5 | - | 0.011 | - |
| Time constant (ms)* | 41.8 ± 2.5 | 40.7 ± 1.6 | 39.0 ± 2.2 | - | - | - |
| Sag ratio* | 0.92 ± 0.01 | 0.91 ± 0.01 | 0.92 ± 0.01 | - | - | - |
| Burst after-hyperpolarization amplitude (mV)* | 3.32 ± 0.31 | 3.92 ± 0.34 | 2.91 ± 0.32 | - | - | - |
| Action potential threshold (mV) | -43.1 ± 0.8 | -42.0 ± 0.7 | -42.2 ± 0.6 | - | - | - |
| Action potential amplitude (mV) | 48.0 ± 1.9 | 50.2 ± 2.2 | 54.4 ± 5.3 | - | - | - |
| Action potential duration at half-peak (ms) | 1.64 ± 0.06 | 1.79 ± 0.09 | 1.59 ± 0.09 | - | - | - |
| EPSP frequency (EPSPs/s) | 5.49 ± 0.49 | 3.34 ± 0.32 | 4.21 ± 0.70 | 0.002 | - | - |
| EPSP maximum amplitude (mV) | 10.95 ± 0.60 | 6.91 ± 0.49 | 8.88 ± 0.75 | <0.001 | - | - |
Inferred neuron-electrophysiology data values
