Anesthetic effects in Alzheimer transgenic mouse models.

Anesthetic effects in Alzheimer transgenic mouse models.
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阿尔茨海默氏症转基因小鼠模型中的麻醉作用。

DOI:
10.1016/j.pnpbp.2012.06.007
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发表时间:
2013-12-02
影响因子:
5.6
通讯作者:
Eckenhoff, Maryellen F.
Eckenhoff, Maryellen F.
中科院分区:
医学2区
文献类型:
--
作者:
Tang, Junxia X.;Eckenhoff, Maryellen F.

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研究已经改善了阿尔茨海默病的诊断,并在早期阶段,但有效的治疗仍然是难以捉摸的。目前的工作重点是拖延。环境因素被认为与遗传学相互作用以调节疾病的进展,并且这样的环境因素之一是暴露于全身麻醉剂。一些麻醉效果具有长期后果的可能性是普遍感兴趣和关注的。在人类中研究一种与年龄有关的慢性疾病的困难,加上麻醉剂很少在没有手术的情况下使用,导致了对动物模型的关注。已经开发了转基因小鼠模型来模拟阿尔茨海默病的特征,包括淀粉样蛋白β积累(斑块)、神经元缠结和认知功能障碍。虽然没有一个模型能高度逼真地概括人类疾病,但它们允许在合理的时间范围内首次观察麻醉剂-阿尔茨海默氏症的相互作用。在迄今为止发现的研究中,没有人得出结论认为麻醉剂单独会导致认知能力下降的显著变化,而是加速了阿尔茨海默病的神经病理学。需要进一步的研究来确定老年人群的最佳麻醉模式,以减轻神经病理学和潜在认知的变化。
Research has improved the diagnosis of Alzheimer’s disease, and at earlier stages, but effective therapy continues to be elusive. Current effort is focused on delay. Environmental factors are thought to interact with genetics to modulate the progression of the disease, and one such environmental factor is exposure to general anesthetics. The possibility that some anesthetic effects have long-term consequences is of general interest and concern. The difficulty of studying a chronic, age-related disease in humans combined with the fact that anesthetics are rarely given without surgery, has led to a focus on animal models. Transgenic mouse models have been developed to mimic the hallmarks of Alzheimer’s disease, including amyloid beta accumulation (plaque), neurofibrillary tangles, and cognitive dysfunction. While none of the models recapitulate the human disease with high fidelity, they allow a first look at anesthetic - Alzheimer interactions in a reasonable time frame. In studies found to date, none have concluded that anesthetics alone cause a significant change in cognitive decline, but rather an acceleration in Alzheimer neuropathology. Further studies are required to define the best anesthetic paradigm for our elderly population to mitigate changes in neuropathology and potentially cognition.
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发表时间: 2010-04
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影响因子: --
作者:
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