Table 2.
Histopathology.
| Animal groups | Rat No. | Days post-implant | Iba1 | ED1 | Ferritin | |||
|---|---|---|---|---|---|---|---|---|
| Left | Right | Left | Right | Left | Right | |||
| Short-term implants (≤15 days) | F11 | 15 | 2819 | 10,901 | 66 | 826 | 487 | 7104 |
| F12 | 7 | 2226 | 14,248 | 74 | 998 | 745 | 18,330 | |
| F13 | 15 | 4219 | 14,747 | 78 | 687 | 288 | 2685 | |
| F14 | 7 | 1731 | 15,941 | 131 | 881 | 248 | 4974 | |
| F15 | 6 | 4761 | 17,966 | 19 | 999 | 367 | 5925 | |
| Chronic implants (≤6 months) | F9 | 71 | 850 | 16,137 | 16 | 253 | 64 | 3094 |
| F10 | 21 | 1555 | 15,149 | 59 | 1157 | 78 | 7106 | |
| F2 | 180 | 3519 | 4133 | 594 | 280 | 911 | 2273 | |
| F4 | 180 | 2402 | 3158 | 260 | 385 | 976 | 2481 | |
| F6 | 180 | 1836 | 2647 | 125 | 125 | 950 | 2839 | |
| F7 | 90 | 4058 | 4727 | 35 | 429 | 299 | 4893 | |
| F8 | 91 | 1495 | 2225 | 24 | 74 | 493 | 1401 | |
Total positive areas of each of the stains for all animals with Pt/Ir array implants. Right refers to the implanted tissue and left refers to the contralateral control tissue.