PMID- 36185474 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221004 IS - 1663-4365 (Print) IS - 1663-4365 (Electronic) IS - 1663-4365 (Linking) VI - 14 DP - 2022 TI - Prediction value of the genetic risk of type 2 diabetes on the amnestic mild cognitive impairment conversion to Alzheimer's disease. PG - 964463 LID - 10.3389/fnagi.2022.964463 [doi] LID - 964463 AB - Amnestic mild cognitive impairment (aMCI) and Type 2 diabetes mellitus (T2DM) are both important risk factors for Alzheimer's disease (AD). We aimed to investigate whether a T2DM-specific polygenic risk score (PRS (sT2DM) ) can predict the conversion of aMCI to AD and further explore the underlying neurological mechanism. All aMCI patients were from the Alzheimer's disease Neuroimaging Initiative (ADNI) database and were divided into conversion (aMCI-C, n = 164) and stable (aMCI-S, n = 222) groups. PRS (sT2DM) was calculated by PRSice-2 software to explore the predictive efficacy of the aMCI conversion to AD. We found that PRS (sT2DM) could independently predict the aMCI conversion to AD after removing the common variants of these two diseases. PRS (sT2DM) was significantly negatively correlated with gray matter volume (GMV) of the right superior frontal gyrus in the aMCI-C group. In all aMCI patients, PRS (sT2DM) was significantly negatively correlated with the cortical volume of the right superior occipital gyrus. The cortical volume of the right superior occipital gyrus could significantly mediate the association between PRS (sT2DM) and aMCI conversion. Gene-based analysis showed that T2DM-specific genes are highly expressed in cortical neurons and involved in ion and protein binding, neural development and generation, cell junction and projection, and PI3K-Akt and MAPK signaling pathway, which might increase the aMCI conversion by affecting the Tau phosphorylation and amyloid-beta (Abeta) accumulation. Therefore, the PRS (sT2DM) could be used as a measure to predict the conversion of aMCI to AD. CI - Copyright (c) 2022 Yang, Wang, Fu, Xu, Zhang, Qin and Zhang. FAU - Yang, Jiayang AU - Yang J AD - Department of Medical Imaging and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China. FAU - Wang, Zirui AU - Wang Z AD - Department of Medical Imaging and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China. FAU - Fu, Yumeng AU - Fu Y AD - Department of Medical Imaging and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China. FAU - Xu, Jiayuan AU - Xu J AD - Department of Medical Imaging and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China. FAU - Zhang, Yang AU - Zhang Y AD - Department of Medical Imaging and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China. FAU - Qin, Wen AU - Qin W AD - Department of Medical Imaging and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China. FAU - Zhang, Quan AU - Zhang Q AD - Department of Medical Imaging and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China. LA - eng PT - Journal Article DEP - 20220915 PL - Switzerland TA - Front Aging Neurosci JT - Frontiers in aging neuroscience JID - 101525824 PMC - PMC9521369 OTO - NOTNLM OT - cortical volume OT - gray matter volume OT - magnetic resonance imaging OT - mediation analysis OT - polygenic risk score 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- 2022/10/04 06:00 MHDA- 2022/10/04 06:01 PMCR- 2022/01/01 CRDT- 2022/10/03 04:20 PHST- 2022/06/09 00:00 [received] PHST- 2022/08/23 00:00 [accepted] PHST- 2022/10/03 04:20 [entrez] PHST- 2022/10/04 06:00 [pubmed] PHST- 2022/10/04 06:01 [medline] PHST- 2022/01/01 00:00 [pmc-release] AID - 10.3389/fnagi.2022.964463 [doi] PST - epublish SO - Front Aging Neurosci. 2022 Sep 15;14:964463. doi: 10.3389/fnagi.2022.964463. eCollection 2022.