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• Original Article •
A resting-state fMRI study on the verbal fluency decline in mild cognitive impairment
GUO Chunlei  HE Jiakai  MA Yue  SUN Jifei  ZHANG Binlong  WANG Zhi  HONG Yang  ZHANG Lei  FANG Jiliang  LUO Ping 

Cite this article as: Guo CL, He JK, Ma Y, et al. A resting-state fMRI study on the verbal fluency decline in mild cognitive impairment[J]. Chin J Magn Reson Imaging, 2022, 13(8): 60-64, 74. DOI:10.12015/issn.1674-8034.2022.08.011.


[Abstract] Objective Amplitude of low frequency fluctuation (ALFF) was used to preliminarily explore the brain mechanism of verbal fluency decline in patients with mild cognitive impairment (MCI).Materials and Methods A total of 20 MCI patients (MCI group) and 16 healthy controls (healthy controls group) matched in gender, age and education level were recruited prospectively. Before enrollment, clinical data, neuropsychological scales and resting-state functional magnetic resonance imaging data were collected. ALFF was used to compare the differences of resting-state brain function between MCI group and healthy controls group, and the Spearman correlation between the change brain regions of ALFF and verbal fluency scales was further observed.Results Compared with the healthy control group, the ALFF of the right insula/superior temporal gyrus was decreased in MCI group (Gaussian random field correction, voxel P＜0.005, cluster P＜0.05). No ALFF elevation was found in brain regions. There was a significant positive correlation between reduced ALFF and fluency test of Montreal cognitive assessment-basic(rs=0.500, P=0.025).Conclusions MCI has decreased brain activity in the right insula/superior temporal gyrus, which may be underlying the mechanism of patient's verbal fluency decline.
[Keywords] mild cognitive impairment；resting state functional magnetic resonance imaging；low frequency amplitude；verbal fluency decline；insula；superior temporal gyrus

GUO Chunlei1   HE Jiakai2   MA Yue1   SUN Jifei1   ZHANG Binlong3   WANG Zhi1   HONG Yang4   ZHANG Lei4   FANG Jiliang1*   LUO Ping4*  

1 Functional Imaging Laboratory, Guang′anmen Hospital of China Academy of Chinese Medical Sciences, Beijing 100053, China

2 Funtion Laboratory, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China

3 Department of Acupuncture and Moxibustion, Guang′anmen Hospital of China Academy of Chinese Medical Sciences, Beijing 100053, China

4 Department of Radiology, Guang′anmen Hospital of China Academy of Chinese Medical Sciences, Beijing 100053, China

Luo P, E-mail: luoping76@163.com Fang JL, E-mail: fangmgh@163.com

Conflicts of interest   None.

ACKNOWLEDGMENTS Beijing Natural Science Foundation (No. 7212191); Science and Technology Innovation Project of China Academy of Chinese Medical Sciences (No. CI2021A03316).
Received  2022-04-27
Accepted  2022-08-01
DOI: 10.12015/issn.1674-8034.2022.08.011
Cite this article as: Guo CL, He JK, Ma Y, et al. A resting-state fMRI study on the verbal fluency decline in mild cognitive impairment[J]. Chin J Magn Reson Imaging, 2022, 13(8): 60-64, 74. DOI:10.12015/issn.1674-8034.2022.08.011.

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