| ARs | Adenosine receptors |
| A2AR | Subtype 2A adenosine receptor |
| A2BR | Subtype 2B adenosine receptor |
| A3R | A3 Adenosine receptor |
| Ado | Adenosine |
| Anti-CCP | Anti-Cylic Citrullinate Peptides |
| CCPA | 8 cyclopentyl-1,3-dipropylxanthine |
| CAT | Catalase activity |
| ELISA | Enzyme-linked immunosorbent assay |
| DAS-28 | Disease Activity Score 28 |
| DMARDs | Disease-modifying antirheumatic drugs |
| DPCPX | 2-chloro-N6-cyclopentyladenosine |
| GSH | Reduced glutathione |
| GGT | γ glutamyl transferase |
| GSSG | Oxidized glutathione |
| HAQ-Di | Health Assessment Questionnaire-Disability Index |
| H2O2 | Hydrogen peroxide |
| MDA | Malondialdehyde |
| MTX | Methotrexate |
| Nox | NADPH oxidase subunit |
| NSAIDs | Non-steroidal anti-inflammatory drugs |
| NF-κB | Nuclear factor kappa B |
| Nrf2 | Erythroid 2-related factor 2 |
| OA | Osteoarthritis |
| ·OH | Hydroxyl radical |
| PTZ | Pentylenetetrazole |
| RA | Rheumatoid arthritis |
| ROS | Reactive Oxygen Species |
| SOD | Superoxide dismutase activity |
| TH | Total Hydroperoxide |
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