Neuorlogy:血浆基线总 tau 和神经丝轻链较高,则卒中风险较高

2022-04-30 影像小生 MedSci原创

较高的血浆总 tau 和 NfL 水平与随后卒中的风险增加有关

卒中和痴呆是老年人常见的神经系统疾病,常在同一患者中同时发生。事实上,血管性认知障碍这一术语在近几十年的引入证明了脑血管病理学在认知障碍发展中的重要性相反,一些研究表明,记忆衰退,认知障碍,甚至痴呆可能在血管病理临床表现之前就已经出现,并增加中风的风险。因此,除了血管病理学将卒中和痴呆联系起来,大脑病理学的其他表现,如淀粉样斑块和神经纤维缠结,也可能影响卒中的风险。

为了阐明阿尔茨海默病相关病理学或神经退行性变是否在中风病因中起作用,确定了血浆 β-淀粉样蛋白 (Aβ)、总 tau 和神经丝轻链 (NfL) 水平对卒中及其亚型风险的影响。

2002 年至 2005 年期间,该研究小组测量了鹿特丹的 4661 名无卒中参与者的血浆4042、总 tau NfL。使用 Cox 比例风险模型来确定这些标志物与整个队列、每个卒中亚型以及中位年龄、性别、APOε 4 携带率和教育程度的卒中事件之间的关联。

研究发现:

在平均 10.8 ± 3.3 年的随访后,379 名参与者首次卒中。

1.基线 Log2 tau 与任何卒中和缺血性卒中的风险呈非线性关联:与第一个(最低)四分位数相比,任何卒中最高四分位数总 tau 的调整后风险比(HR)为 1.6895% CI 1.18– 2.40)

血浆Aβ40, Aβ42,总Tau和NfL与卒中风险的关系

2.Log2 NfL 与任何卒中(HR 每增加 1 SD 增加 1.2795% CI 1.12-1.44)、缺血性卒中和出血性卒中(HR 1.5695% CI 1.14-2.12)的风险增加相关。Log2 Aβ 40 42 42/40比率水平与卒中风险无关。

基线总 tau NfL 较高的参与者卒中和几种卒中亚型的风险较高。这些发现支持神经变性标志物在卒中病因学中的作用。

原文出处

Plasma β-Amyloid, Total-Tau, and Neurofilament Light Chain Levels and the Risk of Stroke: A Prospective Population-Based Study. Neurology Apr 2022, 98 (17) e1729-e1737; DOI: 10.1212/WNL.0000000000200004

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    2022-05-01 hb2008ye
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    2022-04-30 小白努力长高高

    这个研究不错,厉害了!!!谢谢分享

    0

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