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Neurology:多发性硬化,年龄和对比增强损伤息息相关

2021-08-15 Freeman MedSci原创

年龄和CEL的发生是整个MS疾病过程中的一个普遍现象。

多发性硬化症(MS)的疾病过程以炎症和神经变性为特征。所有形式的多发性硬化症的共同点是大脑和脊髓的炎症病灶,这些病灶可以通过磁共振成像显示出来。这些病灶内活跃的炎症性脱髓鞘导致血脑屏障受损,因此活跃的脱髓鞘病灶可以用钆基对比剂来识别。MRI扫描上的对比剂增强病变(contrast enhancing lesion, CELs)表明在扫描时有活跃的炎症性脱髓鞘,因此被视为当前炎症性疾病活动的可靠的放射学生物标志物。在RRMS试验中,CEL的存在和数量是一个重要的次要结果,但CEL在MS的所有疾病过程中都会发生。

一些研究显示,CEL的频率随着年龄的增长而降低,这一发现与复发随年龄和疾病持续时间减少的观察一致,也与MS的炎症性疾病活动在年轻人中更明显,在老年人中更不普遍的一般观点一致。然而,这些研究以RRMS患者为主,不太清楚观察到的年龄和CEL发生的关联是否存在于所有MS疾病过程中。

藉此,加拿大University of Calgary的Marcus W. Koch等人,使用了四个大型随机对照试验(RCTs)的数据集,包括复发缓解型多发性硬化症(RRMS)、继发性进展型多发性硬化症(SPMS)和原发性进展型多发性硬化症(PPMS),以探究年龄与基线和实验性治疗一年后出现CELs的关系。

他们利用CombiRx队列的原始试验数据,即RRMS的试验,ASCEND的SPMS试验,以及PROMISE和INFORMS两项初级进展型多发性硬化症的试验,描述整个试验队列基线时和治疗组一年后的各年龄组CEL发生情况。

CombiRx包括1,008人,ASCEND 889人,PROMISE 943人,INFORMS 970人。

在基线时,CEL的频率在不同的数据集中因疾病过程而不同。39.6%的CombiRx、23.9%的ASCEND、14.0%的PROMISE和12.3%的INFORMS参与者有CELs。

这种按病程的分布在每个年龄组内基本保持不变。

在所有的数据集中,随着年龄的增长,患有CELs的参与者的比例几乎呈线性下降。

实验性治疗一年后,所有试验数据集的CEL发生率都有所下降,在ASCEND中几乎没有。

在CombiRx、PROMISE和INFORMS中,随着年龄的增长,CEL发生率的下降在一年的治疗后得以保留。

在所有数据集中,年龄是唯一与基线CELs风险相关的特征,年龄越大,CELs的风险越低(年龄每增加一岁,基线上有CELs的几率(OR)。


这个研究的重要意义在于发现了:对四个大型的、特征明确的RCT数据集的分析表明,年龄和CEL的发生是整个MS疾病过程中的一个普遍现象。这个研究结果,应该能在现实世界的多发性硬化症数据集中得到验证。


原文出处:
Koch MW, Mostert J, Zhang Y, et al. Association of Age With Contrast-Enhancing Lesions Across the Multiple Sclerosis Disease Spectrum [published online ahead of print, 2021 Aug 10]. Neurology. 2021;10.1212/WNL.0000000000012603. doi:10.1212/WNL.0000000000012603

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    2022-02-17 yinhl1978
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    2022-07-13 jml2009
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    2021-08-15 ms1000001142970985

    学习了

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    2021-08-15 与狼共舞

    学习了

    0

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Brain:发病时的血清生物标志物,用于多发性硬化症的个性化治疗

该研究评估多发性硬化症发病时的 sNfL 和 sGFAP 水平可以识别与残疾获得和治疗反应的多种免疫途径相关的不同表型。

Nature Medicine:多发性硬化症的自身抗体信号预测

研究不仅增进了对MS发病机理的理解,还可能推动未来针对这些自身抗体的早期诊断工具的开发,以及对MS患者进行更为精准的疾病管理和治疗策略的制定。

广州医科大学附属第二医院胡胜锋团队《自然·通讯》:揭示蛋白质翻译后修饰调控Treg细胞分化新机制

该研究揭示了E3泛素连接酶RNF213介导转录因子FOXO1泛素化修饰对Treg细胞分化的调控具有重要作用。为寻找新的药物靶点治疗MS等自身免疫疾病提供了新的思路。

2023 AFSEP建议:癌症和多发性硬化

法国多发性硬化学会(AFSEP,French multiple sclerosis society) · 2024-02-15

2023共识建议:多发性硬化的诊断和治疗

国外神经内科相关专家小组(统称) · 2024-01-07

2023 专家组建议:多发性硬化的辅助生殖技术

国外神经内科相关专家小组(统称) · 2023-02-07

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