Table 3.
Group Values of the Quantitative Ultrastructural Analysis
| Control group (n = 5) | Stress group (n = 4) | t‐Test analysis | |
|---|---|---|---|
| Number of analyzed CA1 pyramidal neurons | 118 ± 14.7a | 128 ± 11.2 a | t=0.52, P=0.62 |
| Number of analyzed terminals | 507 ± 94.9a | 577 ± 72.2a | t=0.56, P=0.59 |
| Number of terminals/soma cross section | 4.2 ± 0.2 | 4.5 ± 0.2 | t=1.05, P=0.33 |
| Number of terminals/100 µm cell perimeter | 10.1 ± 0.5 | 10.5 ± 0.3 | t=0.64, P=0.54 |
| Estimated number of terminals/Soma surface | 56.6 ± 4.3 | 62.3 ± 6.8 | t=0.74, P=0.48 |
| Average soma perimeter (micrometer) | 41.8 ± 1.9 | 42.8 ± 2.9 | t=0.30, P=0.77 |
| Synapse/terminal ratio (%) | 32.1 ± 0.7 | 33.6 ± 1.7 | t=0.89, P=0.40 |
| Synapse number/100 terminal | 119.6 ± 2.2 | 119.5 ± 2.8 | t=0.02, P=0.98 |
| Average terminal length (nanometer) | 920.1 ± 24.5 | 898.3 ± 33.6 | t=0.54, P=0.61 |
There was no difference between the Control and Stress groups in any of the parameters. In the statistical analysis ‘n’ was the number of animals.
a
In total, we analyzed 591 CA1 pyramidal neurons and 2538 perisomatic terminals in five control rats and 510 CA1 pyramidal neurons and 2307 perisomatic terminals in four stressed rats. Data are expressed as mean ±S.E.M.