Table 1.
Summary of treatment groups
| Treatment group | Implant duration (days) |
Chronic electrical stimulation |
Contents of osmotic pump |
|---|---|---|---|
| BDNF/ES1 | 28 | Yes | BDNF2 |
| BDNF/−3 | 28 | No | BDNF |
| AP/ES | 28 | Yes | Artificial perilymph4 |
| AP/− | 28 | No | Artificial perilymph |
Notes:
1
ES denotes chronic electrical stimulation
2
62.5 μg of BDNF/ml in 1% guinea pig albumin in 200 μl of Ringer's solution
3
- denotes control (i.e. electrode assembly implanted but no chronic electrical stimulation)
4
200 μl Ringer's solution.