Publication date: July 2017
Source:Clinical Neurophysiology, Volume 128, Issue 7
Author(s): Zhongwei Guo, Xiaozheng Liu, Jiapeng Li, Fuquan Wei, Hongtao Hou, Xingli Chen, Xinwei Li, Wei Chen
ObjectiveTo explore brain activity in AD with depression (D-AD) based on fractional amplitude of low-frequency fluctuation (fALFF).MethodsTwenty-two D-AD and 21 AD without depression patients (nD-AD) were examined by magnetic resonance imaging during resting state. Neuropsychiatric Inventory and Hamilton Depression Rating Scale were employed to assess the severity of depression. We analysed the characteristics of fALFF in D-AD differing from nD-AD. We also examined the correlation between fALFF and the depression severity.ResultsD-AD patients had higher fALFF in right fusiform gyrus, left caudate nucleus, and right middle temporal gyrus (MTG), meanwhile lower fALFF in supplementary motor area (SMA) than nD-AD patients.ConclusionsAbnormal fALFF changes in fusiform gyrus, caudate nucleus, MTG and SMA may be important neuropathophysiologic characteristics of depression in AD.SignificanceWe have clarified the potential neuropathological changes of depression in AD based on fALFF method, which is crucial for effective intervention.
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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,
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