TAMD:FRAX工具评估系统性红斑狼疮患者骨折风险

2022-02-19 医路坦克 MedSci原创

骨折风险评估工具已被广泛用于对10年骨折风险进行分层以指导治疗。该文比较了系统性红斑狼疮(SLE)患者10年纵向队列中观察到的骨折发生率与骨折风险评估(FRAX)工具预测的骨折风险。

     骨折风险评估工具已被广泛用于对10年骨折风险进行分层以指导治疗。使用10年系统性红斑狼疮老年患者纵向队列的实际骨折数据,我们报告了该工具在预测主要症状性骨质疏松性骨折方面的准确性。系统性红斑狼疮骨质疏松症的治疗不应仅基于骨折风险评估,应考虑相关的时间相关风险因素以做出个体化的决定。
    目的:比较系统性红斑狼疮(SLE)患者10年纵向队列中观察到的骨折发生率与骨折风险评估(FRAX)工具预测的骨折风险。
    方法:研究对象为2005年至2009年首次诊断为成人系统性红斑狼疮患者。在调整强的松龙剂量后,使用DEXA的临床数据通过FRAX对主要骨质疏松性和髋部骨折的10年发生率进行了评估。将10年内临床骨折的实际发病率与估计率进行比较。对新骨折的相关因素进行Logistic回归分析。
    结果:共研究了229例SLE患者(年龄:50.2±6.6岁,93%为女性)。14 8例(6 5%)患者在基线时使用糖皮质激素(平均剂量:7 3±6 9 mg/d;34%的⩾为7 5 mg/d)。61例(27%)患者存在髋部、股骨颈或脊柱的骨质疏松症(骨矿密度T评分⩽-2.5%)。根据FRAX的估计,发生严重骨质疏松性骨折和髋部骨折的10年风险分别为3.4±4.5%和0.95±2.3%。10年后发生髋部骨折3例,肢体骨折6例,症状性脊椎骨折20例(主要骨质疏松性骨折12.7%,髋部骨折1.3%)。实际的主要骨质疏松性骨折发生率明显高于FRAX估计(12.7%vs3.4%;p<0.001)。Logistic回归分析显示骨质疏松(OR:4.07[1.51~10.9])、脆性骨折史(OR:3.18[1.02~9.90])和父母骨折史(OR:4.44[1.16~17.0])与10年新发临床骨折独立相关。
    结论:总之,我们的研究表明,尽管按照ACR的建议调整了泼尼松龙的基线剂量,但FRAX公式低估了系统性红斑狼疮患者的主要临床骨折风险,特别是脊椎骨折。由于建立FRAX公式所用的数据因地区不同而不同,我们的观察结果不能推广到其他种族。我们的观察表明,SLE患者的药物治疗阈值不应仅仅由骨折风险预测本身决定。对于估计骨折风险达不到指南中规定的治疗门槛的患者,应根据存在额外和相关的时间相关风险因素,如频繁的疾病发作和额外的GC治疗,考虑个体化的治疗决定。未来的研究应该集中于这些额外的危险因素和骨质量评估,如TBS,在骨折预测模型中的作用。在使用不同免疫抑制方案的SLE患者的大型纵向队列中进行验证研究是必要的。

文献来源: Mok CC,  Tse SM,  Chan KL,Estimation of fracture risk by the FRAX tool in patients with systemic lupus erythematosus: a 10-year longitudinal validation study,Ther Adv Musculoskelet Dis 2022;14 

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    2022-02-21 zhty5337
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    2022-02-21 zhouqu_8

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A&R:通过在T细胞和外泌体中过表达嗜酸性粒细胞阳离子蛋白诱导干扰素-γ和组织炎症

T 细胞或T细胞衍生的外泌体中嗜酸性粒细胞阳离子蛋白(ECP)过表达可能是与系统性红斑狼疮 (SLE)相关的肾炎、肝炎和关节炎的生物标志物和致病因素。

阿斯利康旗下的Saphnelo获得欧盟批准用于系统性红斑狼疮

阿斯利康本周三宣布,欧盟委员会批准 Saphnelo (anifrolumab) 作为治疗中重度活性自身抗体阳性系统性红斑狼疮 (SLE) 成人患者的附加疗法。

ARD:人类SLE变异NCF1-R90H通过巨噬细胞缺陷性的胞葬作用诱导Tfh2反应增强来促进肾损伤和鼠狼疮

狼疮致病变异体NCF1-H90在小鼠和系统性红斑狼疮患者中减少巨噬细胞胞葬作用,增强Tfh2反应并促进自身抗体产生和肾损伤。

A&R:抗双链 DNA 抗体可识别系统性红斑狼疮风险等位基因的 HLA II 类分子上呈递的 DNA

DNA以类似于错误折叠蛋白质的方式与HLA II类分子结合,并且与HLA II类分子结合的DNA通过激活表达抗DNA的B细胞受体方式激活B细胞,从而参与 SLE发病机制。

礼来(Lilly)的Olumiant在狼疮、特应性皮炎适应症中遭遇挫折

SLE-BRAVE-I研究的结果显示,与安慰剂相比,4mg 口服剂量的 Olumiant 在第 52 周达到了主要终点,但 SLE-BRAVE-II 研究则没有达到主要终点。

欧洲药理学杂志 :组织蛋白酶 S 抑制剂 ASP1617 作为系统性红斑狼疮治疗的潜在益处

组织蛋白酶 S 抑制剂( CatS )可能是治疗 SLE 的的靶点。