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JBMR Plus:双膦酸盐暴露对成骨不全症中骨矿物质密度和其他健康结果的影响

2020-02-13 不详 网络

成骨不全症(OI)的特点是骨量低和骨脆。使用来自成骨不全症基金会相关临床研究中心的大量OI个体的数据,我们研究了双膦酸盐(BPN)治疗(过去或现在)与腰椎(LS)面骨矿物质密度(aBMD),骨折,脊柱侧弯和活动性之间的关系。从466名患者中,我们获得了1394个参与者年龄的LS aBMD数据点。尽管检查了所有OI亚型,但主要分析仅限于I型OI(OI-1)。使用线性回归,我们根据从未接受过BPN的个

成骨不全症(OI)的特点是骨量低和骨脆。使用来自成骨不全症基金会相关临床研究中心的大量OI个体的数据,我们研究了双膦酸盐(BPN)治疗(过去或现在)与腰椎(LS)面骨矿物质密度(aBMD),骨折,脊柱侧弯和活动性之间的关系。

从466名患者中,我们获得了1394个参与者年龄的LS aBMD数据点。尽管检查了所有OI亚型,但主要分析仅限于I型OI(OI-1)。使用线性回归,我们根据从未接受过BPN的个体的数据构建了预期的OI-1 LS aBMD年龄曲线。然后,将已接触BPN的患者的LS aBMD与计算的预期aBMD进行比较。

结果显示,青春期前(<14岁)的BPN暴露与LS aBMD相关,比未接受过BPN的个体的预期计算值高9%(p <0.01);但是,并非所有年龄段都观察到这种关联。接触i.v. BPN和治疗时间> 2年与青春期前个体的LS aBMD相关。BPN暴露也与非aBMD临床结果变量显著相关。 Logistic回归模型预测,随着BPN暴露,OI-1的青春期前个体年龄增加1年会使骨折几率降低8.2%,而从未接受过BPN的个体则没有下降(p < 0.05)。在OI-1的青春期前个体中,LS aBMD升高0.1μg/cm2可使脊柱侧弯发生率降低10.6%,而BPN单纯组则升高46.8%(p <0.01)。

对于青春期前个体的年龄和LS aBMD的相同变化,BPN暴露也与较高的活动性评分相关(p <0.01),表明BPN治疗可能与日常功能有关。

原始出处:

askaran S Bains, Erin M Carter, et al., A Multicenter Observational Cohort Study to Evaluate the Effects of Bisphosphonate Exposure on Bone Mineral Density and Other Health Outcomes in Osteogenesis Imperfecta. JBMR Plus. 2019 May; 3(5): e10118.

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    2020-02-15 zhaojie88
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