| CI | Cochlear implant |
| DEX-lab | Dexamethasone—laboratory grade |
| DEX-med | Dexamethasone—medical grade |
| DPS-med | Dexamethasone dihydrogen phosphate-disodium—medical grade |
| DPS-lab | Dexamethasone sodium phosphate—laboratory grade |
| DMEM | Dulbecco’s modified Eagle’s medium |
| ELISA | Enzyme-Linked Immunosorbent Assay |
| FCS | Fetal calf serum |
| FBs | NIH/3T3 mouse fibroblasts |
| h | hour |
| HL | Hearing loss |
| i.c. | Intracochlear |
| i.p. | Intraperitoneal |
| i.t. | Intratympanic |
| i.v. | Intravenous |
| LPS | Lipopolysaccharides |
| MTT | 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide |
| NC | Negative control |
| OD | Optical density |
| PC | Positive control |
| RT | Room temperature |
| SSNHL | Sudden sensorineural hearing loss |
| SGN | Spiral ganglion neurons |
| SD | Standard deviation |
| TNF-α | Tumor necrosis factor alpha |