一种COX-2抑制剂不会干扰男性关节炎小鼠负荷的骨保护作用
Suchita Desai1, Jianyao Wu2, Karin Horkeby2
1Department of Laboratory Medicine, Division of Pathology, Karolinska Institutet Karolinska University Hospital Huddinge Sweden.
JBMR plus
|July 17, 2023
概括
机械负荷可以防止男性小鼠因关节炎引起的骨损失. 将负载与COX-2抑制剂 (NS-398) 结合在一起,可以减少膝盖胀,但不会影响骨保护作用,这表明一种潜在的治疗策略.
科学领域:
- 整形外科 整形外科 整形外科
- 类风湿病学 类风湿病学
- 骨生物学 骨生物学 骨生物学
背景情况:
- 众所周知,机械负荷可以增强骨强度,并抵消炎症引起的骨损失.
- 非类固醇抗炎药物 (NSAIDs),特别是COX-2抑制剂对男性关节炎小鼠负载相关骨形成的影响尚不清楚.
研究的目的:
- 调查机械加载与COX-2抑制剂 (NS-398) 结合是否可以预防男性小鼠的关节炎诱导的骨损失和炎症.
- 为了确定NS-398是否会影响关节炎模型中机械负荷对骨保护的益处.
主要方法:
- 雄性C57BL/6J小鼠在两周内受到轴带机械负荷.
- 单关节炎是通过全身和局部注射甲基化牛血清白素来诱导的.
- 评估了膝盖胀,肌炎,关节软骨损伤,骨架构,骨质细胞数和血清C端交叉链接.
主要成果:
- 机械负荷增强皮质骨,并抵消关节炎引起的形骨损失.
- 关节炎增加了骨再吸收标记 (C端交叉链接),而负载没有.
- NS-398部分抵消了负载增强的膝盖胀和突炎,但没有改变负载的骨保护作用.
结论:
- 在雄性小鼠中,机械负荷有效地预防了关节炎引起的骨损失.
- NS-398可以减少关节胀和炎症,但不会对机械负荷对骨保护的好处产生负面影响.
- 研究结果表明,可以使用COX-2抑制剂与负载炼一起,以控制关节疼痛和胀,而不会损害骨健康.
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