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Expression of HIF-1α and HIF-2α in normal, rheumatoid, and osteoarthritic synovium
| Fractures | RA | OA | P | |
| HIF-1α | ||||
| Negative | 16 | 0 | 0 | |
| Low | 6 | 10 | 13 | <0.0001 |
| High | 0 | 12 | 21 | |
| HIF-2α | ||||
| Negative | 18 | 0 | 0 | |
| Low | 4 | 8 | 14 | <0.0001 |
| High | 0 | 14 | 20 |
HIF, hypoxia inducible factor; OA, osteoarthritis; RA, rheumatoid arthritis.
