| OA | Osteoarthritis |
| GP-39 | Glycoprotein 39 |
| CHI3L1 YKL-40 | Chitinase 3-like-1 |
| SF | Synovial fluid |
| SZP | Superficial zone protein |
| PRG4 | Proteoglycan 4 |
| ACLT | Anterior cruciate ligament transection |
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