Table 5. The mean and standard deviation (SD) of the optical density of caspase 3 immunostaining in the different experimental groups.
| Group | Mean ± SD | 
|---|---|
| Control | 13.523 ± 0.6 | 
| Au-NP50 | 19.179 ± 0.4 | 
| Au-NP 25 | 16.772 ± 0.3 | 
Au-NP50, gold nanoparticles 50 ppm for 5 days; Au-NP25, 25 ppm Au-NPs for 10 days.