Table 1. Comparison of the morpho-physiological properties of EGNs and LGNs at juvenile stages.
| EGN | LGN | |
|---|---|---|
| Electrophysiological properties | ||
| Capacitance (pF) | 171.4±15.2 (n=30) | 164.6±13.7 (n=32) |
| Rest potential (mV) | −62±2.3 (n=30)* | −74.1±2.7 (n=32) |
| Threshold potential (mV) | −47.6±1.1 (n=30) | −51.4±1.8 (n=32) |
| Input resistance (MΩ) | 289±24 (n=30) | 315±36 (n=32) |
| EPSP amplitude (mV) | 2.17±0.23 (n=11) | 1.89±0.22 (n=17) |
| EPSP frequency (Hz) | 3.9±0.6 (n=11) | 4.6±0.5 (n=17) |
| Percentage of bursting cells | 52% (n=30)* | 20% (n=32) |
| Morphological properties | ||
| Dendrites | ||
| Number | 6.4±0.73 (n=12) | 5.3±0.6 (n=11) |
| Total length (μm) | 4,835±920 (n=12) | 4,813±736 (n=11) |
| Primary dendrite length (μm) | 34.9±3.6 (n=12)* | 22.6±1.7 (n=11) |
| Number of nodes | 27.3±5.1 (n=12)* | 46.6±5 (n=11) |
| Cell body | ||
| Position (% close to the SO) | 63% (n=12)* | 38% (n=11) |
| Area (μm2) | 345.2±69 (n=12) | 297.3±72 (n=11) |
EGN, early-generated neuron; EPSP, excitatory postsynaptic potential; LGN, later generated neuron; SO, stratum oriens.
Cell body position: percentage of cells within the deepest half of the stratum pyramidale close to the stratum oriens. A node is a branching point, where a process (axon or dendrites) splits into two or more branches. Bold values indicate averages. Asterisks indicate significant differences between EGNs and LGNs. P<0.05 was considered significant. P-value is given by Fisher, Student or Mann–Whitney tests.