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- W2802723368 abstract "Abstract Background Functional dyspepsia ( FD ) is a common functional gastrointestinal disease. Neuroimaging studies have identified that insula is involved in the pathogenesis of FD . However, less is known about structural and functional connectivity of insula in FD . Methods In this study, 67 FD patients and 46 healthy controls ( HC s) underwent structural MRI, resting‐state functional MRI , diffusion tensor imaging ( DTI ) scans, and clinical assessment. We used the 3 neuroimaging modalities to investigate structural and functional connectivity of insula between FD patients and HC s, and we examined relationships between the neuroimaging findings and clinical symptoms. Key Results Compared with HC s, (i) FD patients had decreased gray matter density in right insula according to voxel‐based morphometry method, which region was targeted as region of interest for further analysis of structural and functional connectivity; (ii) FD patients had lower connection probability in right anterior insula with right thalamus, right internal capsule ( IC ), and right external capsule ( EC ); (iii) FD patients had decreased functional connectivity of the right anterior insula with right thalamus and right pregenual anterior cingulate cortex ( pACC ); and (iv) FD patients had negative correlation between disease duration and the functional connectivity of right anterior insula with thalamus. Conclusions and Inferences The present findings reveal that alterations of structural and/or functional connectivity of right anterior insula with regions, including thalamus, IC , EC , and pACC , may be mainly implicated in abnormalities of visceral sensory processing and related affective responses in FD patients. Finally, this study could enhance understanding of the pathophysiology of FD ." @default.
- W2802723368 created "2018-05-17" @default.
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- W2802723368 date "2018-04-23" @default.
- W2802723368 modified "2023-10-17" @default.
- W2802723368 title "Altered structural and functional connectivity of the insula in functional dyspepsia" @default.
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- W2802723368 doi "https://doi.org/10.1111/nmo.13345" @default.
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