A canine model of human aging and Alzheimer's disease.

A canine model of human aging and Alzheimer's disease.
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DOI:
10.1016/j.bbadis.2013.03.016
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发表时间:
2013-09
影响因子:
6.2
通讯作者:
Head, Elizabeth
Head, Elizabeth
中科院分区:
生物学2区
文献类型:
--
作者:
Head, Elizabeth

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老年狗在许多不同的领域(包括学习和记忆)自然发展认知能力下降,但在衰老过程中也表现出类似人类的个体差异。认知功能障碍的神经生物学基础可能与反映神经变性的结构变化有关。导致老化犬脑变性的分子级联反应包括β-淀粉样蛋白(Aβ)在弥漫性斑块和脑血管中的进行性蓄积。此外,神经元功能障碍是线粒体功能障碍和累积氧化损伤的结果。结合起来,老年狗捕捉到了人类衰老的关键特征,使它们对开发预防或治疗干预措施以改善老年脑功能特别有用。这些干预措施可以转化为人类临床试验。这篇文章是题为“疾病的动物模型”的特刊的一部分。
The aged dog naturally develops cognitive decline in many different domains (including learning and memory) but also exhibits human-like individual variability in the aging process. The neurobiological basis for cognitive dysfunction may be related to structural changes that reflect neurodegeneration. Molecular cascades that contribute to degeneration in the aging dog brain include the progressive accumulation of beta-amyloid (Aβ) in diffuse plaques and in the cerebral vasculature. In addition, neuronal dysfunction occurs as a consequence of mitochondrial dysfunction and cumulative oxidative damage. In combination, the aged dog captures key features of human aging, making them particularly useful for the development of preventive or therapeutic interventions to improve aged brain function. These interventions can then be translated into human clinical trials. This article is part of a Special Issue entitled: Animal Models of Disease.
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