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  • Title: Serum periostin is associated with prevalent knee osteoarthritis and disease incidence/progression in women: the OFELY study.
    Author: Rousseau JC, Sornay-Rendu E, Bertholon C, Garnero P, Chapurlat R.
    Journal: Osteoarthritis Cartilage; 2015 Oct; 23(10):1736-42. PubMed ID: 26072384.
    Abstract:
    OBJECTIVE: Our aim was to investigate the relationships between serum periostin (POSTN) and both prevalence and incidence/progression of knee osteoarthritis (OA) in women. METHODS: We investigated 594 women (62.7 ± 11.2 yr) from the OFELY cohort. Knee radiographs were scored according to the Kellgren & Lawrence (KL) grading system at baseline and 4 years later. Spine, hip and hand OA were assessed at baseline. Prevalent knee OA was defined by a KL score higher or equal in 2. Progression of KL was defined as an increase of the KL score ≥1 during the 4 years follow-up. Serum POSTN was measured at baseline by ELISA. RESULTS: By non-parametric tests, POSTN was significantly lower in 83 women with a KL score ≥2 at baseline, compared to those with a KL score <2 (n = 511; 1101 ± 300 vs 1181 ± 294 ng/ml, P = 0.002) after adjustment for age, body mass index (BMI), treatments and diseases, prevalent hand OA and prevalent lumbar spine OA. By logistic regression analyses, the odds-ratio of knee OA incidence/progression was significantly reduced by 21% (P = 0.043) for each quartile increase in serum POSTN at baseline, after adjustment for age, BMI, prevalent knee OA, prevalent hand OA and prevalent lumbar spine OA. CONCLUSIONS: We show for the first time that serum POSTN is associated with prevalence and the risk of development/progression of knee OA in women.
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