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  • Title: Renormalizing synapses in sleep: The clock is ticking.
    Author: Frank MG.
    Journal: Biochem Pharmacol; 2021 Sep; 191():114533. PubMed ID: 33771494.
    Abstract:
    Sleep has been hypothesized to renormalize synapses potentiated in wakefulness. This is proposed to lead to a net reduction in synaptic strength after sleep in brain areas like the cortex and hippocampus. Biological clocks, however, exert independent effects on these synapses that may explain some of the reported differences after wake and sleep. These include changes in synaptic morphology, molecules and efficacy. In this commentary, I discuss why no firm conclusions should be drawn concerning the role of sleep in synaptic renormalization until the role of circadian rhythms are isolated and determined.
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