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Objectives: This study was aimed to measure soluble lectin-like oxidized low-density lipoprotein receptor-1 (sLOX-1) levels in serum and synovial fluid (SF) of knee osteoarthritis (OA) patients and to investigate the correlation between sLOX-1 levels and the disease severity.
Design And Methods: Two hundred and sixteen OA patients and 83 healthy controls were enrolled in this study. All OA patients were scored for Kellgren-Lawrence (KL) grade (0-4). The sLOX-1 levels were measured by enzyme-linked immunosorbent assay (ELISA).
Results: In OA patients, the mean sLOX-1 levels in SF were markedly lower than those in paired serum samples (P<0.01). The SF sLOX-1 levels increased with higher KL grade (P<0.01) and were significantly correlated with disease severity (r = 0.324, P<0.01). SF sLOX-1 level was the independent factor for predicting the disease severity of OA (β: 0.281, 95%CI: 0.145-0.396).
Conclusions: SF sLOX-1 levels were independently and positively associated with disease severity in knee OA.
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| http://dx.doi.org/10.1016/j.clinbiochem.2011.06.081 | DOI Listing |
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