alexa Sleep drives metabolite clearance from the adult brain.
Neurology

Neurology

Journal of Sleep Disorders & Therapy

Author(s): Xie L, Kang H, Xu Q, Chen MJ, Liao Y,

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Abstract The conservation of sleep across all animal species suggests that sleep serves a vital function. We here report that sleep has a critical function in ensuring metabolic homeostasis. Using real-time assessments of tetramethylammonium diffusion and two-photon imaging in live mice, we show that natural sleep or anesthesia are associated with a 60\% increase in the interstitial space, resulting in a striking increase in convective exchange of cerebrospinal fluid with interstitial fluid. In turn, convective fluxes of interstitial fluid increased the rate of β-amyloid clearance during sleep. Thus, the restorative function of sleep may be a consequence of the enhanced removal of potentially neurotoxic waste products that accumulate in the awake central nervous system.
This article was published in Science and referenced in Journal of Sleep Disorders & Therapy

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