Cross-sectional soma area, percentage of soma sections with PV+ terminal apposition, number of PV+ perisomatic terminals per cell per thin section, and PV+ terminal density at P10, P15, and P30 in dorsal and ventral MEC LII
| Mean ± SEM or % (n cells) | ||
|---|---|---|
| Age, postnatal days | Dorsal | Ventral |
| Cross-sectional area of somata (µm2) | ||
| 10 | 172.94 ± 10.03 (39) | 131.91 ± 5.94 (47) |
| 15 | 226.35 ± 14.56 (44) | 167.89 ± 5.90 (46) |
| 30 | 253.62 ± 11.49 (47) | 172.29 ± 7.04 (46) |
| Soma cross-sections with PV+ terminal apposition | ||
| 10 | 82.1 (39) | 38.3 (47) |
| 15 | 100 (44) | 95.6 (46) |
| 30 | 100 (47) | 95.6 (46) |
| Number of PV+ perisomatic terminals | ||
| 10 | 2.22 ± 0.28 (32) | 1.28 ± 0.11 (18) |
| 15 | 6.34 ± 0.52 (44) | 3.25 ± 0.22 (44) |
| 30 | 5.74 ± 0.44 (47) | 4.23 ± 0.36 (44) |
| PV+ terminal density (%) | ||
| 10 | 3.64 ± 0.38 (32) | 2.58 ± 0.30 (18) |
| 15 | 8.93 ± 0.62 (44) | 5.50 ± 0.41 (44) |
| 30 | 8.71 ± 0.70 (47) | 6.97 ± 0.60 (44) |
PV+ terminal density was calculated by dividing the total length of PV+ terminal membrane apposed to a given cross-sectional soma by the perimeter of that soma and multiplying by 100.