| TTS | transient hearing threshold shift |
| PTS | permanent hearing threshold shift |
| IL | interleukin |
| TNF | tumor necrosis factor |
| NIHL | noise-induced hearing loss |
| SLFs | spiral ligament fibrocytes |
| SGNs | spiral ganglion neurons |
| ADRA1A | alpha-1A adrenergic receptor |
| ADRA1D | alpha-1D adrenergic receptor |
| ET A | endothelin receptor type A |
| ET B | endothelin receptor type B |
| HO-1 | heme oxygenase 1 |
| eNOS | endothelial nitric oxide synthase |
| AT2 | angiotensin 2 receptor type 2 |
| ADORA2A | adenosine A2A receptor |
| PGE2 | prostaglandin E receptor 2 |
| PGI2 | prostaglandin I2 receptor |
| VEGF-A | vascular endothelial growth factor A |
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