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Modafinil Reduces Neuronal Pyroptosis and Cognitive Decline After Sleep Deprivation. 2022

Xiangyang Xiong, and Yan Zuo, and Lu Cheng, and Zhenyu Yin, and Tianpeng Hu, and Mengtian Guo, and Zhaoli Han, and Xintong Ge, and Wenzhu Li, and Yan Wang, and Dong Wang, and Conglin Wang, and Lan Zhang, and Yaodan Zhang, and Qiang Liu, and Fanglian Chen, and Ping Lei
Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China.

Sleep deprivation (SD) induces systemic inflammation that promotes neuronal pyroptosis. The purpose of this study was to investigate the effect of an antioxidant modafinil on neuronal pyroptosis and cognitive decline following SD. Using a mouse model of SD, we found that modafinil improved learning and memory, reduced proinflammatory factor (IL-1β, TNF-α, and IL-6) production, and increased the expression of anti-inflammatory factors (IL-10). Modafinil treatment attenuated inflammasome activity and reduced neuronal pyroptosis involving the NLRP3/NLRP1/NLRC4-caspase-1-IL-1β pathway. In addition, modafinil induced an upregulation of brain-derived neurotrophic factor (BDNF) and synaptic activity. These results suggest that modafinil reduces neuronal pyroptosis and cognitive decline following SD. These effects should be further investigated in future studies to benefit patients with sleep disorders.

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