摘要
引言:动物数据表明神经炎症与继发性脑损伤(包括动脉瘤蛛网膜下腔出血后的轴突损伤(aSAH))之间的关联。我们试图研究脑细胞外白细胞介素(IL)-6和TAU蛋白水平之间的关系,作为不良等级aSAH患者神经炎症和轴突损伤的替代标志物。 方法:回顾性分析26例连续低水平aSAH患者多前路神经监测(包括脑微透析(CMD))的前瞻性收集资料。每24小时使用单次CMD样品的ELISA分析IL-6和TAU-蛋白水平,并与脑代谢和血液动力学参数相关。根据其中位数CMD-IL-6水平,患者被分为高度(N = 10)或低度(N = 16)神经炎症。使用广义估计方程来分析数据以解释多个受试者内的测量。 结果:入院时的perilesional探针位置(P = 0.02)和aSAH相关的脑内出血量(P = 0.003)与高级神经炎症有关。脑细胞外TAU蛋白水平(P = 0.001),代谢性窘迫和脑梗死延迟(DCI; P = 0.001)与高级神经炎症有关。相对或绝对的磷光体TAU水平与CMD-IL-6水平无关。高级神经炎症是睾丸三个月以后的独立于探针位置,初始Hunt&Hess等级和年龄(P = 0.01)的恶化结果的预测因子。 结论:aSAH后神经炎症与实质内出血有关,脑代谢紊乱和TAU-蛋白释放。在以后的研究中,必须对潜在的抗炎治疗策略对aSAH后继发性脑损伤的影响进行调查。
关键词: 神经炎症,tau蛋白,脑内出血,白细胞介素-6,脑微透析。
图形摘要
Current Drug Targets
Title:Neuroinflammation is Associated with Brain Extracellular TAU-Protein Release After Spontaneous Subarachnoid Hemorrhage
Volume: 18 Issue: 12
关键词: 神经炎症,tau蛋白,脑内出血,白细胞介素-6,脑微透析。
摘要: Introduction: Animal data suggest an association between neuroinflammation and secondary brain injury including axonal injury after aneurysmal subarachnoid hemorrhage (aSAH). We sought to study the association between brain extracellular interleukin (IL)-6 and TAU-protein levels as a surrogate marker for neuroinflammation and axonal injury in patients with poor grade aSAH.
Methods: Prospectively collected data from 26 consecutive poor-grade aSAH patients with multimodal neuromonitoring including cerebral microdialysis (CMD) were retrospectively analyzed. IL-6 and TAU-protein levels were analyzed using ELISA from a single CMD-sample every 24 hours and correlated with brain metabolic and hemodynamic parameters. Patients were dichotomized to highgrade (N=10) or low-grade (N=16) neuroinflammation according to their median CMD-IL-6 levels. Data were analyzed using generalized estimating equations to account for multiple within-subject measurements. Results: Perilesional probe location (P=0.02) and aSAH related intracerebral hemorrhage (aICH) volume (P=0.003) at admission were associated with high-grade neuroinflammation. Brain extracellular TAU-protein levels (P=0.001), metabolic distress and delayed cerebral infarction (DCI; P=0.001) were linked to high-grade neuroinflammation. Relative or absolute phosphor-TAU levels were not correlated with CMD-IL-6 levels. High-grade neuroinflammation was a predictor for worse outcome three months after ictus, independently from probe location, initial Hunt&Hess grade and age (P=0.01). Conclusion: Neuroinflammation after aSAH is associated with intraparenchymal bleeding, deranged cerebral metabolism and TAU-protein release. The impact of potential anti-inflammatory treatment strategies on secondary brain injury after aSAH has to be investigated in future studies.Export Options
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Cite this article as:
Neuroinflammation is Associated with Brain Extracellular TAU-Protein Release After Spontaneous Subarachnoid Hemorrhage, Current Drug Targets 2017; 18 (12) . https://dx.doi.org/10.2174/1389450117666160201111804
DOI https://dx.doi.org/10.2174/1389450117666160201111804 |
Print ISSN 1389-4501 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-5592 |
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