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首页> 外文期刊>American Journal of Neuroradiology >Changes in Brain Morphology in Alzheimer Disease and Normal Aging: Is Alzheimer Disease an Exaggerated Aging Process?
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Changes in Brain Morphology in Alzheimer Disease and Normal Aging: Is Alzheimer Disease an Exaggerated Aging Process?

机译:阿尔茨海默氏病和正常衰老中大脑形态的变化:阿尔茨海默氏病是一个过度的衰老过程吗?

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摘要

BACKGROUND AND PURPOSE: Whether Alzheimer disease (AD) represents exaggerated aging rather than a disease is controversial. Data about the effects of normal aging on the human brain are essential for clarifying this issue; however, whether coherent common patterns of regional morphologic brain changes emerge in the normal aged brain is unclear. Clarification of regional morphologic changes in the brain associated with normal aging and AD was sought using MR imaging. METHODS: Ninety-two healthy volunteers and 26 mildly to moderately impaired patients with AD participated. Images were anatomically normalized, and voxel-by-voxel analyses were done. RESULTS: In healthy volunteers, an age-related decline in the volume of the prefrontal cortex, insula, anterior cingulate gyrus, superior temporal gyrus, inferior parietal lobule, and precuneus was found. These decreases might contribute to the cognitive changes during normal aging. In patients with AD, a significant reduction of gray matter volume in the hippocampal formation and entorhinal cortex bilaterally was noted. CONCLUSION: Morphologic changes associated with normal aging are clearly different from those seen with AD.
机译:背景与目的:阿尔茨海默病(AD)是否代表 衰老而不是疾病是有争议的。关于正常衰老对人脑的影响的数据 对于澄清这个问题是必不可少的。但是,尚不清楚在正常的老年大脑中是否出现连贯的,共同的区域形态学大脑变化模式。使用MR影像学来澄清与正常衰老和AD相关的大脑区域形态学变化。 方法:92名健康志愿者和26名健康志愿者轻度至中度 受损的AD患者参加了研究。对图像进行解剖 归一化,并进行体素分析。 结果:在健康志愿者中,与年龄相关的 下降发现前额叶皮层,岛状,前扣带回,颞上回,顶叶小叶和前神经突。这些减少可能有助于正常衰老过程中 的认知变化。在AD患者中, 在海马区 形成和内脏皮质的灰质体积显着减少。 结论:形态学改变与正常衰老 与AD所见明显不同。

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  • 来源
    《American Journal of Neuroradiology》 |2001年第9期|1680-1685|共6页
  • 作者单位

    From the Departments of Radiology (T.O., H.M.) and Psychiatry (T.A., M.U.), National Center Hospital of Mental, Nervous, and Muscular Disorders, National Center of Neurology and Psychiatry and the Division of Demyelinating Disease and Aging (T.O., T.T.), National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.;

    From the Departments of Radiology (T.O., H.M.) and Psychiatry (T.A., M.U.), National Center Hospital of Mental, Nervous, and Muscular Disorders, National Center of Neurology and Psychiatry and the Division of Demyelinating Disease and Aging (T.O., T.T.), National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.;

    From the Departments of Radiology (T.O., H.M.) and Psychiatry (T.A., M.U.), National Center Hospital of Mental, Nervous, and Muscular Disorders, National Center of Neurology and Psychiatry and the Division of Demyelinating Disease and Aging (T.O., T.T.), National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.;

    From the Departments of Radiology (T.O., H.M.) and Psychiatry (T.A., M.U.), National Center Hospital of Mental, Nervous, and Muscular Disorders, National Center of Neurology and Psychiatry and the Division of Demyelinating Disease and Aging (T.O., T.T.), National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.;

    From the Departments of Radiology (T.O., H.M.) and Psychiatry (T.A., M.U.), National Center Hospital of Mental, Nervous, and Muscular Disorders, National Center of Neurology and Psychiatry and the Division of Demyelinating Disease and Aging (T.O., T.T.), National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.;

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