中国神经再生研究(英文版) ›› 2023, Vol. 18 ›› Issue (12): 2647-2648.doi: 10.4103/1673-5374.373665

• 观点:神经损伤修复保护与再生 • 上一篇    下一篇

GABA能突触传递和可塑性在睡眠和觉醒中振荡

  

  • 出版日期:2023-12-15 发布日期:2023-06-14

GABAergic synaptic transmission and plasticity oscillate across sleep and wake

Kunwei Wu*, Wei Lu   

  1. Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, Jiangsu Province, China (Wu K)
    Synapse and Neural Circuit Research Section, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD, USA (Lu W) 
  • Online:2023-12-15 Published:2023-06-14
  • Contact: Kunwei Wu, PhD, wukunwey@hotmail.com.
  • Supported by:
    This work was supported by the NIH/NINDS Intramural Research Program (to WL) and the Starting Grant of Excellent Talents from Xuzhou Medical University (to KW).

摘要: https://orcid.org/0000-0003-4074-0567 (Kunwei Wu)

Abstract: Sleep is a widely expressed behavior across the animal kingdom. In addition to the numerous health benefits that are associated with sleep, it is believed that sleep plays a pivotal role in mental processes such as learning and memory. Indeed, it has been demonstrated that learning and memory benefit from sleep, whereas sleep loss causes cognitive impairment (Rasch and Born, 2013). Changing the strength of synapses, the connections between neurons, has been proposed to be the basic memory mechanism. Therefore, it is not surprising that many studies about the memory functions of sleep have focused on its effects on synapses. An influential hypothesis regarding the function of sleep in learning and memory is the synaptic homeostasis hypothesis, which proposes that wake increases overall excitatory synaptic strength due to ongoing learning and sleep renormalizes them to facilitate memory consolidation and integration (Tononi and Cirelli, 2014). This view has received support by findings in a number of studies showing molecular, morphological and electrophysiological changes indicative of excitatory synaptic weakening during sleep and strengthening during wake (Tononi and Cirelli, 2014). However, several recent studies have shown that sleep can potentiate excitatory synaptic transmission (Chauvette et al., 2012), or have no impact on excitatory synaptic strength (Cary and Turrigiano, 2021). These studies indicate complex mechanisms underlying the possible roles of sleep in regulating excitatory synapses. Of note, given a neuron typically receives thousands of synaptic inputs and the interactions between excitatory and inhibitory synaptic inputs determine the level of activity in it, neuronal communication across sleep and wake is probably regulated as a balance between excitatory and inhibitory influences. However, compared to extensive studies on excitatory synapses, much less is known about the regulation of inhibitory synapses by sleep.