Cerebral amyloid angiopathy impact on endothelium.

Cerebral amyloid angiopathy impact on endothelium.
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脑淀粉样血管病对内皮的影响。

DOI:
10.1016/j.exger.2012.08.005
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发表时间:
2012-11
影响因子:
3.9
通讯作者:
Heinsen, Helmut
Heinsen, Helmut
中科院分区:
医学2区
文献类型:
--
作者:
Grinberg, Lea Tenenholz;Korczyn, Amos D.;Heinsen, Helmut

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脑淀粉样血管病(CAA)是一种与年龄相关的疾病,其特征是淀粉样蛋白沉积在大脑和脑膜血管壁。CAA在大多数患有痴呆症的个体中被检测到,并且在大量非痴呆老年个体中也被检测到。此外,CAA与阿尔茨海默病(AD)病理学密切相关。机械后果包括脑内或蛛网膜下腔出血仍然是CAA最可怕的并发症,但只有一小部分CAA导致严重出血。另一方面,脑血管调节中的非机械性后果是普遍的,甚至可能更有害。动物模型的研究提供了强有力的证据,将CAA中发现的主要种类血管活性Aβ 1-40与内皮依赖性因子的紊乱联系起来,破坏脑血管调节。在此,我们旨在回顾CAA对脑血管调节的非机械性后果的实验结果,并讨论这些结果对临床实践的意义。
Cerebral amyloid angiopathy (CAA) is an age-associated disease characterized by amyloid deposition in cerebral and meningeal vessel walls. CAA is detected in the majority of the individuals with dementia and also in a large number of non-demented elderly individuals. In addition, CAA is strongly associated with Alzheimer’s disease (AD) pathology. Mechanical consequences including intra-cerebral or subarachnoid hemorrhage remains CAA most feared complication, but only a small fraction of CAA results in severe bleeding. On the hand the non-mechanical consequences in cerebrovascular regulation are prevalent and may be even more deleterious. Studies of animal models have provided strong evidence linking the vasoactive Aβ 1–40, the main species found in CAA, to disturbances in endothelial-dependent factors, disrupting cerebrovascular regulation Here, we aimed to review experimental findings regarding the non-mechanical consequences of CAA for cerebrovascular regulation and discuss the implications of these results to clinical practice.
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