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DOI: 10.1055/s-0044-1792097
The role of lipid metabolism in cognitive impairment
Support The present study was funded by the China Postdoctoral Science Foundation (2023M732121), the Natural Science Foundation of Shandong Province (ZR2023QH090 and ZR2022MH119), and the development fund of the Affiliated Hospital of Xuzhou Medical University (XYFY202343).

Abstract
Alzheimer's disease (AD), diabetic cognitive impairment (DCI), and vascular dementia (VD) are considered the most common causes of severe cognitive impairment in clinical practice. Numerous factors can influence their progression, and many studies have recently revealed that metabolic disorders play crucial roles in the progression of cognitive impairment. Mounting evidence indicate that the regulation of lipid metabolism is a major factor in maintaining brain homeostasis. Generally, abnormalities in lipid metabolism can affect amyloid-beta (Aβ) deposition, tau hyperphosphorylation, and insulin resistance through lipid metabolic signaling cascades; affect the neuronal membrane structure, neurotransmitter synthesis and release; and promote synapse growth, which can impact neural signal transmission and exacerbate disease progression in individuals with cognitive impairment, including AD, DCI, and VD. Moreover, apolipoprotein E (APOE), a key protein in lipid transport, is involved in the occurrence and development of the aforementioned diseases by regulating lipid metabolism. The present article mainly discusses how lipid metabolic disorders in the brain microenvironment are involved in regulating the progression of cognitive impairment, and it explores the regulatory effects of targeting the key lipid transport protein APOE in the context of the role of lipid metabolism in the common pathogenesis of three diseases—Aβ deposition, tau hyperphosphorylation, and insulin resistance—which will help elucidate the potential of targeting lipid metabolism for the treatment of cognitive impairment.
Authors' Contributions
MX, YM: prepared the first manuscript and edited it, and performed the literature search; LW, GK, QJ, TY, FC: edited the manuscript and performed the literature search; TY, FC: arranged the financial support. All authors read and approved the final paper.
Editor-in-Chief: Hélio A. G. Teive.
Associate Editor: Sonia Maria Dozzi Brucki
Publikationsverlauf
Eingereicht: 28. Mai 2024
Angenommen: 27. Juli 2024
Artikel online veröffentlicht:
15. Januar 2025
© 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution 4.0 International License, permitting copying and reproduction so long as the original work is given appropriate credit (https://creativecommons.org/licenses/by/4.0/)
Thieme Revinter Publicações Ltda.
Rua do Matoso 170, Rio de Janeiro, RJ, CEP 20270-135, Brazil
Meifang Xu, Liyuan Wang, Yun Meng, Guiqiong Kang, Qing Jiang, Tao Yan, Fengyuan Che. The role of lipid metabolism in cognitive impairment. Arq Neuropsiquiatr 2025; 83: s00441792097.
DOI: 10.1055/s-0044-1792097
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