MINI REVIEW article
Front. Aging Neurosci.
Sec. Alzheimer's Disease and Related Dementias
Volume 17 - 2025 | doi: 10.3389/fnagi.2025.1601602
This article is part of the Research TopicGlucose metabolism in Brain and Neurodegenerative diseases: Multifactorial effectsView all articles
GLP-1R as a potential link between diabetes and Alzheimer's disease
Provisionally accepted- 1Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou Province, China
- 2Third Affiliated Hospital of Zunyi Medical University (The First People’s Hospital of Zunyi), China, China
- 3First People’s Hospital of Zunyi, Zunyi, Guizhou Province, China
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There is growing interest in the relationship between Alzheimer's disease (AD) and diabetes mellitus (DM), and the glucagon-like peptide-1 receptor (GLP-1R) may be an important link between these two diseases. The role of GLP-1R in DM is principally to regulate glycemic control by stimulating insulin secretion, inhibiting glucagon secretion, and improving insulin signaling, thereby reducing blood glucose levels. In AD, GLP-1R attenuates the pathological features of AD through mechanisms such as anti-inflammatory effects, a reduction in amyloid-beta (Aβ) deposition, the promotion of Aβ clearance, and improvements in insulin signaling. Notably, AD and DM share numerous pathophysiological mechanisms, most notably the disruption of insulin signaling pathways in the brain. These findings further underscore the notion that GLP-1R plays pivotal roles in both diseases. Taken together, these findings lead us to conclude that GLP-1R not only plays an important role in the treatment of DM and AD but also may serve as a bridge between these two diseases. Future research should focus on elucidating the detailed molecular mechanisms underlying the actions of GLP-1R in both diseases and exploring the development of GLP-1R agonists with dual therapeutic benefits for AD and DM. This could pave the way for innovative integrated treatment strategies to improve outcomes for patients affected by these intertwined conditions.
Keywords: glucagon-like peptide-1 receptor, Alzheimer's disease, Diabetes Mellitus, Insulin Resistance, Neuroinflammatory
Received: 28 Mar 2025; Accepted: 03 Jul 2025.
Copyright: © 2025 Li, Huang, Wang, Huang, Shi, Luo and Huang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Juan Huang, Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou Province, China
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