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World J Diabetes. Mar 15, 2026; 17(3): 112177
Published online Mar 15, 2026. doi: 10.4239/wjd.v17.i3.112177
Mitochondrial autophagy in diabetes-related cognitive decline and skin ulcers: Mechanistic insights and therapeutic implications
Xing Chen, Ling-Ling Zhang, Yu Zhou, Dong-Xiang Dong, Xiao-Ying Qian
Xing Chen, Ling-Ling Zhang, Yu Zhou, Dong-Xiang Dong, Xiao-Ying Qian, Department of Dermatology, Third Affiliated Hospital of Jiaxing University School of Medicine, Jiaxing 314000, Zhejiang Province, China
Author contributions: Chen X wrote the paper; Zhang LL, Zhou Y and Dong DX gathered the information; Qian XY directed the study. The final article was examined, edited, and approved by all the authors, who also agreed to take responsibility for all the elements of the work and make critical revisions for significant intellectual content.
Conflict-of-interest statement: The authors declare that they have no conflicts of interest related to this manuscript.
Corresponding author: Xiao-Ying Qian, Department of Dermatology, Third Affiliated Hospital of Jiaxing University School of Medicine, No. 309 Shuangyuan Road, Nanhu District, Jiaxing 314000, Zhejiang Province, China. 19957380102@163.com
Received: July 29, 2025
Revised: September 18, 2025
Accepted: January 12, 2026
Published online: March 15, 2026
Processing time: 226 Days and 1.5 Hours
Abstract

Diabetic skin ulcers significantly reduce the quality of life of patients with diabetes, and diabetes-related cognitive impairment is a cognitive deterioration that happens along the course of diabetes. Mitochondrial dysfunction is a major pathophysiology of skin ulcers and cognitive deterioration associated with diabetes. An essential component of the mitochondrial quality control system is mitochondrial autophagy, which aids in the removal of faulty mitochondria; preserving the health and regular operation of mitochondria requires both the preservation of mitochondrial function and the preservation of mitochondrial quality and activity. This review highlights key mitophagy pathways, including PINK1/Parkin-dependent and receptor-mediated mechanisms, and emphasizes their differential roles in diabetes-related cognitive impairment and skin ulcer healing, thereby providing a mechanistic framework for the development of targeted mitophagy-based therapeutic strategies.

Keywords: Diabetes mellitus; Mitochondrial autophagy; Cognitive impairment; Reactive oxygen species; Skin ulcers

Core Tip: The mechanism of mitochondrial autophagy in skin ulcers and cognitive decline associated with diabetes is the main topic of this review. This study aimed to clarify the crucial role of mitochondrial autophagy in maintaining the metabolic balance of cells, provide potential therapeutic strategies and intervention methods, and offer new concepts for the clinical management of diabetes-related complications. It also examined how mitochondrial autophagy reduces neurodegeneration brought on by diabetes and supports the molecular pathway of skin healing by removing damaged mitochondria.