PMID- 34122050 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210615 IS - 1663-4365 (Print) IS - 1663-4365 (Electronic) IS - 1663-4365 (Linking) VI - 13 DP - 2021 TI - Right Frontoinsular Cortex: A Potential Imaging Biomarker to Evaluate T2DM-Induced Cognitive Impairment. PG - 674288 LID - 10.3389/fnagi.2021.674288 [doi] LID - 674288 AB - Cognitive impairment in type 2 diabetes mellitus (T2DM) is associated with functional and structural abnormalities in the intrinsic brain network. The salience network (SN) is a neurocognitive network that maintains normal cognitive function, but it has received little attention in T2DM. We explored SN changes in patients with T2DM with normal cognitive function (DMCN) and in patients with T2DM with mild cognitive impairment (DMCI). Sixty-five T2DM patients and 31 healthy controls (HCs) underwent a neuropsychological assessment, independent component analysis (ICA), and voxel-based morphometry (VBM) analysis. The ICA extracted the SN for VBM to compare SN functional connectivity (FC) and gray matter (GM) volume (GMV) between groups. A correlation analysis examined the relationship between abnormal FC and GMV and clinical/cognitive variables. Compared with HCs, DMCN patients demonstrated increased FC in the left frontoinsular cortex (FIC), right anterior insula, and putamen, while DMCI patients demonstrated decreased right middle/inferior frontal gyrus FC. Compared with DMCN patients, DMCI patients showed decreased right FIC FC. There was no significant difference in SN GMV in DMCN and DMCI patients compared with HCs. FIC GMV was decreased in the DMCI patients compared with DMCN patients. In addition, right FIC FC and SN GMV positively correlated with Montreal Cognitive Assessment and Mini-Mental State Examination (MMSE) scores. These findings indicate that changes in SN FC, and GMV are complex non-linear processes accompanied by increased cognitive dysfunction in patients with T2DM. The right FIC may be a useful imaging biomarker for supplementary assessment of early cognitive dysfunction in patients with T2DM. CI - Copyright (c) 2021 Zhang, Lei, Gao, Qi, Yan, Ai, Zhe, Cheng, Wang, Su, Tang and Zhang. FAU - Zhang, Dongsheng AU - Zhang D AD - Department of MRI, Shaanxi Provincial People's Hospital, Xi'an, China. FAU - Lei, Yumeng AU - Lei Y AD - Department of Graduate, Xi'an Medical University, Xi'an, China. FAU - Gao, Jie AU - Gao J AD - Department of MRI, Shaanxi Provincial People's Hospital, Xi'an, China. FAU - Qi, Fei AU - Qi F AD - Department of Graduate, Xi'an Medical University, Xi'an, China. FAU - Yan, Xuejiao AU - Yan X AD - Department of MRI, Shaanxi Provincial People's Hospital, Xi'an, China. FAU - Ai, Kai AU - Ai K AD - Department of Clinical Science, Philips Healthcare, Xi'an, China. FAU - Zhe, Xia AU - Zhe X AD - Department of MRI, Shaanxi Provincial People's Hospital, Xi'an, China. FAU - Cheng, Miao AU - Cheng M AD - Department of MRI, Shaanxi Provincial People's Hospital, Xi'an, China. FAU - Wang, Man AU - Wang M AD - Department of Graduate, Xi'an Medical University, Xi'an, China. FAU - Su, Yu AU - Su Y AD - Department of Graduate, Xi'an Medical University, Xi'an, China. FAU - Tang, Min AU - Tang M AD - Department of MRI, Shaanxi Provincial People's Hospital, Xi'an, China. FAU - Zhang, Xiaoling AU - Zhang X AD - Department of MRI, Shaanxi Provincial People's Hospital, Xi'an, China. LA - eng PT - Journal Article DEP - 20210528 PL - Switzerland TA - Front Aging Neurosci JT - Frontiers in aging neuroscience JID - 101525824 PMC - PMC8193040 OTO - NOTNLM OT - independent component analysis OT - neuroimaging OT - salience network OT - type 2 diabetes mellitus OT - voxel-based morphometry COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/06/15 06:00 MHDA- 2021/06/15 06:01 PMCR- 2021/01/01 CRDT- 2021/06/14 09:35 PHST- 2021/03/01 00:00 [received] PHST- 2021/04/27 00:00 [accepted] PHST- 2021/06/14 09:35 [entrez] PHST- 2021/06/15 06:00 [pubmed] PHST- 2021/06/15 06:01 [medline] PHST- 2021/01/01 00:00 [pmc-release] AID - 10.3389/fnagi.2021.674288 [doi] PST - epublish SO - Front Aging Neurosci. 2021 May 28;13:674288. doi: 10.3389/fnagi.2021.674288. eCollection 2021.