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Fractional amplitude of low-frequency fluctuation changes in monkeys with spinal cord injury: A resting-state fMRI study

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单位: [1]Beihang Univ, Sch Biol Sci & Med Engn, Dept Biomed Engn, Beijing 100191, Peoples R China [2]Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, Beijing 100101, Peoples R China [3]Capital Med Univ, Beijing Friendship Hosp, Beijing 100068, Peoples R China [4]Capital Med Univ, Inst Neurosci, Beijing 100069, Peoples R China
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关键词: Spinal cord injury Resting-state Functional magnetic resonance imaging Low-frequency fluctuation Non-human primate

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Purpose: Although functional magnetic resonance imaging (fMRI) has revealed that spinal cord injury (SCI) causes anomalous changes in task-induced brain activation, its effect during the resting state remains unclear. The aim of this study is to explore the changes of the brain resting-state function in non-human primates with unilateral SCI. Materials and methods: Eleven adult female rhesus monkeys were subjected to resting-state fMRI: five with unilateral thoracic SCI and six healthy monkeys, to obtain the fractional amplitude of low-frequency fluctuations (fALFF) of the blood oxygenation level-dependent (BOLD) contrast signal to determine the influence of SCI on the cerebral resting-state function. Results: The SCI-induced fALFF vary significantly in several encephalic regions, including the left cerebellum, the left thalamus, the right lateral geniculate nucleus, the right superior parietal lobule, and the posterior cingulate gyrus. Conclusion: Analysis of the resting-state fMRI provides evidence of abnormal spontaneous brain activations in primates with SCI, which may help us understand the pathophysiologic mechanisms underlying the changes in neural plasticity in the central nervous system after SCI. Crown Copyright (C) 2014 Published by Elsevier Inc. All rights reserved.

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出版当年[2013]版:
大类 | 4 区 医学
小类 | 3 区 核医学
最新[2025]版:
大类 | 4 区 医学
小类 | 4 区 核医学
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出版当年[2012]版:
Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
最新[2023]版:
Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

影响因子: 最新[2023版] 最新五年平均[2021-2025] 出版当年[2012版] 出版当年五年平均[2008-2012] 出版前一年[2011版] 出版后一年[2013版]

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第一作者单位: [1]Beihang Univ, Sch Biol Sci & Med Engn, Dept Biomed Engn, Beijing 100191, Peoples R China
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通讯机构: [1]Beihang Univ, Sch Biol Sci & Med Engn, Dept Biomed Engn, Beijing 100191, Peoples R China [4]Capital Med Univ, Inst Neurosci, Beijing 100069, Peoples R China [*1]Beihang Univ, Sch Biol Sci & Med Engn, Dept Biomed Engn, 37 Xueyuan Rd, Beijing 100191, Peoples R China
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