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• W2912265788 startingPage "463" @default.
• W2912265788 abstract "Abstract Post‐traumatic osteoarthritis (PTOA) of ankle joints results in pain and reduced joint function. Ghrelin, a 28‐amino‐acid polypeptide, has been previously identified as the first cognate natural ligand that binds to the growth hormone secretagogue receptor. In the present study, ghrelin has been validated to exert cartilage‐protective and anti‐inflammatory effects. The current study was aimed at investigating the potential role of the levels of serum and synovial fluid (SF) ghrelin on the severity of disease in patients suffering from ankle PTOA. Ninety‐seven patients with ankle osteoarthritis who received an arthroscopical examination and debridement or replacement of the ankle joint were included in the study cohort. Meanwhile, 95 healthy individuals (whose age and sex were matched) who received periodic body checkups were enrolled as healthy controls. Enzyme‐linked immunosorbent assay (ELISA) was used to analyze the ghrelin levels in serum and SF. SF was also probed for cartilage degradation enzyme matrix metalloproteinases‐3 (MMP‐3) and tumor necrosis factor alpha (TNF‐α), which is a known pro‐inflammatory cytokine. The clinical evaluation was carried out using the American Orthopedic Foot and Ankle Society (AOFAS) ankle‐hindfoot rating scale and visual analogue scale (VAS). The radiographic severity was evaluated using the modified Kellgren–Lawrence (K–L) grading system. We scored for the modified Mankin's score to depict histopathological changes due to cartilage lesions. The diagnostic relevance of the ghrelin concentrations in the prediction of the radiographic grading (in comparison with MMP‐3 and TNF‐α) was evaluated by calculating the area under the curve of the receiver operating characteristic (ROC) curve. The serum abundance of ghrelin was not significantly altered between ankle PTOA patients and healthy controls. SF ghrelin was negatively correlated with radiographic progression determined by modified ankle K–L grades. In addition SF ghrelin concentrations were negatively related to VAS scores, and positively associated with AOFAS ankle‐hindfoot rating. Moreover, SF ghrelin was inversely proportional to the expressions of MMP‐3 and TNF‐α. ROC analysis curve demonstrated that ghrelin serves as a favorable marker for the diagnosis of radiographic severity by modified ankle K‐L grade. The ghrelin concentration in SF is negatively proportional to disease progression in patients suffering from ankle PTOA. Local administration of ghrelin may function as a decent adjuvant therapy to delay the progress of ankle PTOA. © 2019 BioFactors, 45(3):463–470, 2019" @default.
• W2912265788 created "2019-02-21" @default.
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• W2912265788 date "2019-01-30" @default.
• W2912265788 modified "2023-10-17" @default.
• W2912265788 title "Attenuated levels of ghrelin in synovial fluid is related to the disease severity of ankle post‐traumatic osteoarthritis" @default.
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• W2912265788 doi "https://doi.org/10.1002/biof.1490" @default.
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