创新链/学科链/研发链/产业链

新药研发前沿动态 / 医药领域趋势进展

脑血管功能损伤介导阿尔茨海默病认知损伤的恶性循环研究进展

Progress in Cerebrovascular Dysfunction Mediated-Vicious Circle of Cognitive Impairment in Alzheimer's Disease

  • 摘要: 阿尔茨海默病(AD)是一种常见的神经退行性疾病,其发病机制尚不明确。由于目前多个以β淀粉样蛋白(amyloid beta,Aβ)为靶标的药物研发均以失败告终,Aβ假说受到质疑。脑血管功能损伤作为各类脑病的主要风险因素,在AD疾病进程中发挥重要作用,AD血管假说受到越来越多关注。脑血管功能损伤可通过多种途径加剧Aβ和Tau蛋白在脑内沉积,推进AD疾病进程。而AD疾病状态下,Aβ可通过多种途径加剧血管功能损伤,形成恶性循环。从正反两方面论述脑血管功能损伤和AD的相互关系,并概述从改善血管功能角度延缓AD疾病进程的策略,以期为临床提供参考。

     

    Abstract: Alzheimer's disease (AD) is a common neurodegenerative disease whose pathogenesis remains unclear. Due to the failure of several molecules targeting amyloid beta(Aβ), the amyloid cascade hypothesis has been challenged. Cerebrovascular dysfunction is a major risk factor for several brain diseases and plays an important role in AD. Consequently, vascular hypothesis of AD has attracted increased attention. Cerebrovascular dysfunction increases the deposition of Aβ and Tau protein in the brain via a variety of pathways to accelerate the progression of AD. Meanwhile, Aβ can induce vascular dysfunction through multiple pathways in AD, which comes into a vicious circle. In this study, the relationship between cerebrovascular dysfunction and AD was reviewed and the strategies to postpone the progression of AD through the improvement of vascular function were summarized, so as to provide reference for clinical treatment.

     

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