期刊
NEUROREPORT
卷 32, 期 3, 页码 206-213出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/WNR.0000000000001579
关键词
alcohol dependence; cognitive impairment; functional connectivity; language
资金
- Medical Science and Technology Research Foundation of Guangdong Province, China [B2015123]
- Public Welfare Science and Technology Research Project of Zhongshan City, Guangdong Province, China [2018B1051]
Middle-aged male alcoholic subjects exhibited significant reductions in interhemispheric and intrahemispheric functional coherence, indicating possible degeneration of system/network integration, particularly in domains related to default mode, language processing, and salience integration.
Background The purpose of this study was to investigate the interhemispheric intrinsic connectivity measured by resting-state functional MRI (R-fMRI) in middle-aged male alcoholics. Methods Thirty male alcoholics (47.33 +/- 8.30 years) and 30 healthy males (47.20 +/- 6.17 years) were recruited and obtained R-fMRI data. Inter- and intrahemispheric coordination was performed by using voxel-mirrored homotopic connectivity (VMHC) and seed-based functional connectivity analysis. Results We found significantly decreased VMHC in a set of regions in male alcoholics patients, including lateral temporal, inferior frontal gyrus, insular/insulae operculum, precuneus/posterior cingulate gyrus, and pars triangularis (P < 0.05, corrected). Subsequent seed-based functional connectivity analysis demonstrated disrupted functional connectivity between the regions of local homotopic connectivity deficits and other areas of the brain, particularly the areas subserving the default, salience, primary somatomotor, and language systems. Conclusions Middle-aged male alcoholic subjects demonstrated prominent reductions in inter- and intrahemispheric functional coherence. These abnormal changes may reflect degeneration of system/network integration, particularly the domains subserving default, linguistic processing, and salience integration.
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