期刊
OSTEOARTHRITIS AND CARTILAGE
卷 16, 期 6, 页码 660-666出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.joca.2007.10.002
关键词
osteoarthritis; biochemical marker; type II collagen; bisphosphonate
Objective: To investigate whether early changes in biochemical markers of bone (NTX-1) and cartilage (CTX-II [C-terminal crosslinking telopeptide of type II collagen]) degradation are associated with radiological progression in patients with knee osteoarthritis (OA) receiving risedronate. Design: Two thousand four hundred and eighty three patients with medial compartment knee OA were randomized in two 24-month studies in North America (NA) and European Union (EU). Studies evaluated risedronate 5 mg/day, 35 mg/week (EU), 50 mg/week (NA), and 15 mg/day (NA and EU), compared to placebo in reducing signs and symptoms and in slowing radiographic progression. One thousand eight hundred and eighty five patients from the pooled EU and NA studies with available NTX-I/CTX-II at both baseline and 6 months and radiographs at baseline and at 24 months were analyzed. Results: Risedronate produced a dose-dependent reduction of NTX-I and CTX-II observed at 6 months which continued up to 24 months. Patients who had CTX-II levels returned to low levels (< 150 ng/mmol creatinine) at 6 months had a lower risk of radiographic progression at 24 months than patients whose CTX-II levels were increased both at baseline and 6 months [odds-ratio (95% confidence interval): 0.57 (0.39-0.85) after adjustment for demographics and joint space width]. The lowest risk of progression was observed in patients who had low CTX-II levels both at baseline and at 6 months [odds-ratio 0.36 (0.21-0.63)]. No significant association between NTX-I levels and radiological progression was observed. Conclusion: CTX-II decreased with risedronate in patients with knee OA and levels reached after 6 months were associated with radiological progression at 24 months. Monitoring a marker of cartilage degradation 6 months after initiating treatment may be instructive in identifying patients with low progression. (C) 2007 Osteoarthritis Research Society International. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据