• Neuroscience · Aug 2022

    Review

    Irisin: A promising treatment for neurodegenerative diseases.

    • Jing-Yu Qi, Liu-Kun Yang, Xin-Shang Wang, Min Wang, Xu-Bo Li, Ban Feng, Yu-Mei Wu, Kun Zhang, and Shui-Bing Liu.
    • Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an 710032, China.
    • Neuroscience. 2022 Aug 21; 498: 289-299.

    AbstractThe beneficial effects of exercise on human brain function have been demonstrated in previous studies. Myokines secreted by muscle have attracted increasing attention because of their bridging role between exercise and brain health. Regulated by PPARγ coactivator 1α, fibronectin type III domain-containing protein 5 releases irisin after proteolytic cleavage. Irisin, a type of myokine, is secreted during exercise, which induces white adipose tissue browning and relates to energy metabolism. Recently, irisin has been shown to exert a protective effect on the central nervous system. Irisin secretion triggers an increase in brain-derived neurotrophic factor levels in the hippocampus, contributing to the amelioration of cognition impairments. Irisin also plays an important role in the survival, differentiation, growth, and development of neurons. This review summarizes the role of irisin in neurodegenerative diseases and other neurological disorders. As a novel positive mediator of exercise in the brain, irisin may effectively prevent or decelerate the progress of neurodegenerative diseases in models and also improve cognitive functions. We place emphasis herein on the potential of irisin for prevention rather than treatment in neurodegenerative diseases. In ischemic diseases, irisin can alleviate the pathophysiological processes associated with stroke. Meanwhile, irisin has anxiolytic and antidepressant effects. The potential therapeutic effects of irisin in epilepsy and pain have been initially revealed. Due to the pleiotropic and beneficial properties of irisin, the possibility of irisin treating other neurological diseases could be gradually explored in the future.Copyright © 2022 IBRO. Published by Elsevier Ltd. All rights reserved.

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