PMID- 34630014 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20211012 IS - 1662-4548 (Print) IS - 1662-453X (Electronic) IS - 1662-453X (Linking) VI - 15 DP - 2021 TI - Altered Functional Topological Organization in Type-2 Diabetes Mellitus With and Without Microvascular Complications. PG - 726350 LID - 10.3389/fnins.2021.726350 [doi] LID - 726350 AB - Microvascular complications can accelerate cognitive impairment in patients with type 2 diabetes mellitus (T2DM) and have a high impact on their quality of life; however, the underlying mechanism is still unclear. The complex network in the human brain is the physiological basis for information processing and cognitive expression. Therefore, this study explored the relationship between the functional network topological properties and cognitive function in T2DM patients with and without microvascular complications (T2DM-C and T2DM-NC, respectively). Sixty-seven T2DM patients and 41 healthy controls (HCs) underwent resting-state functional MRI and neuropsychological assessment. Then, graph theoretical network analysis was performed to explore the global and nodal topological alterations in the functional whole brain networks of T2DM patients. Correlation analyses were performed to investigate the relationship between the altered topological parameters and cognitive/clinical variables. The T2DM-C group exhibited significantly higher local efficiency (Eloc), normalized cluster coefficient (gamma), and small-world characteristics (sigma) than the HCs. Patients with T2DM at different clinical stages (T2DM-C and T2DM-NC) showed varying degrees of abnormalities in node properties. In addition, compared with T2DM-NC patients, T2DM-C patients showed nodal properties disorders in the occipital visual network, cerebellum and middle temporal gyrus. The Eloc metrics were positively correlated with HbA1c level (P = 0.001, r = 0.515) and the NE values in the right paracentral lobule were negatively related with serum creatinine values (P = 0.001, r = -0.517) in T2DM-C patients. This study found that T2DM-C patients displayed more extensive changes at different network topology scales. The visual network and cerebellar may be the central vulnerable regions of T2DM-C patients. CI - Copyright (c) 2021 Zhang, Huang, Gao, Lei, Ai, Tang, Yan, Lei, Yang, Shao and Zhang. FAU - Zhang, Dongsheng AU - Zhang D AD - Department of MRI, Shaanxi Provincial People's Hospital, Xi'an, China. FAU - Huang, Yang AU - Huang Y AD - Department of MRI, Shaanxi Provincial People's Hospital, Xi'an, China. FAU - Gao, Jie AU - Gao J 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 - Ai, Kai AU - Ai K AD - Department of Clinical Science, Philips Healthcare, Xi'an, China. FAU - Tang, Min AU - Tang M AD - Department of MRI, Shaanxi Provincial People's Hospital, Xi'an, China. FAU - Yan, Xuejiao AU - Yan X AD - Department of MRI, Shaanxi Provincial People's Hospital, Xi'an, China. FAU - Lei, Xiaoyan AU - Lei X AD - Department of MRI, Shaanxi Provincial People's Hospital, Xi'an, China. FAU - Yang, Zhen AU - Yang Z AD - Department of MRI, Shaanxi Provincial People's Hospital, Xi'an, China. FAU - Shao, Zhirong AU - Shao Z AD - Department of Graduate, Xi'an Medical University, 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 - 20210922 PL - Switzerland TA - Front Neurosci JT - Frontiers in neuroscience JID - 101478481 PMC - PMC8493598 OTO - NOTNLM OT - graph theory OT - microvascular complications OT - resting-state functional magnetic resonance imaging OT - small-world OT - topological properties OT - type 2 diabetes mellitus 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- 2021/10/12 06:00 MHDA- 2021/10/12 06:01 PMCR- 2021/01/01 CRDT- 2021/10/11 05:53 PHST- 2021/06/16 00:00 [received] PHST- 2021/08/31 00:00 [accepted] PHST- 2021/10/11 05:53 [entrez] PHST- 2021/10/12 06:00 [pubmed] PHST- 2021/10/12 06:01 [medline] PHST- 2021/01/01 00:00 [pmc-release] AID - 10.3389/fnins.2021.726350 [doi] PST - epublish SO - Front Neurosci. 2021 Sep 22;15:726350. doi: 10.3389/fnins.2021.726350. eCollection 2021.