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FAC and COMP identified as reliable biomarkers for hip lesions

FAC and COMP identified as reliable biomarkers for hip lesions FAC and COMP identified as reliable biomarkers for hip lesions
FAC and COMP identified as reliable biomarkers for hip lesions FAC and COMP identified as reliable biomarkers for hip lesions

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Future studies are required to confirm FAC and COMP application as a diagnostic tool in predicting clinical responses, evaluating disease severity and predicting long-term OA.  

According to the results of a recent systematic review and meta-analysis, the femoroacetabular impingement (FAI) and early hip osteoarthritis (OA) can be effectively diagnosed using the fibronectin-aggrecan complex (FAC) and cartilage oligomeric matrix protein (COMP).

Early diagnosis and treatment of patients with hip lesions may prevent considerable hip morbidity, and diagnosis can only be made with the help of reliable biomarkers. The present study involved the evaluation of the biomarkers that have been linked with FAI. The study also identified synovial, urinary and serum analytes that have presented clinical efficacy in predicting hip OA.

Cochrane Library, Google Scholar, Web of Science, Scopus, PubMed were searched using the terms - "labral tear," "femoroacetabular impingement," "hip arthroscopy," "osteoarthritis," and "biomarker" and 276 articles were selected. Only seven articles were included after screening. Fixed-effects inverse-variance models weighted for individual study size were used to measure the pooled estimates.

A total of 43 distinctive biomarkers were evaluated. Conflicting trends in arthritic hips were shown by general pro-inflammatory cytokines IL-1 and TNF-α whereas IL-6 showed a consistent increase. The participants with OA exhibited a considerable difference in the fibronectin-aggrecan complex (FAC) levels as compared to controls. Only this specific analyte exhibited a notable difference between those with and without OA. After adjusting for concurrent knee and hip OA, the cartilage oligomeric matrix protein (COMP) found to be increased significantly in athletes in FAI setting. A statistically significant difference was observed in FAI-positive hips as compared to the controls. CXCL3 showed statistically notable differences as compared to controls, but did not control for other factors like concomitant lesions and age. The findings presented that the FAC and COMP are the potential biomarkers used for early FAI and hip OA diagnosis. However, additional investigation is required to recognize their capacity in evaluating disease severity, predicting the treatment response to, and building a relationship with the risk of long-term OA.

Source:

The American Journal of Sports Medicine

Article:

Biomarkers for Femoroacetabular Impingement and Hip Osteoarthritis: A Systematic Review and Meta-analysis

Authors:

T. Sean Lynch et al.

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