The state of brain activity modulates cerebrospinal fluid transport

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Earlier studies based on 2-photon imaging have shown that glymphatic cerebrospinal fluid (CSF) transport is regulated by the sleep-wake cycle. To examine this association, we used 3DISCO whole-body tissue clearing to map CSF tracer distribution in awake, sleeping and ketamine-xylazine anesthetized mice. The results of our analysis showed that CSF tracers entered the brain to a significantly larger extent in natural sleep or ketamine-xylazine anesthesia than in wakefulness. Furthermore, awake mice showed preferential transport of CSF tracers in the rostro-caudal direction towards the cervical and spinal cord lymphatic vessels, and hence to venous circulation and excretion by the kidneys. The study extends the current literature by showing that CSF dynamics on the whole-body scale is controlled by the state of brain activity.
OriginalsprogEngelsk
Artikelnummer102512
TidsskriftProgress in Neurobiology
Vol/bind229
Antal sider11
ISSN0301-0082
DOI
StatusUdgivet - 2023

Bibliografisk note

Funding Information:
Funding was provided by Lundbeck Foundation grant R386-2021-165 , Novo Nordisk Foundation grant NNF20OC0066419 , National Institutes of Health grant R01AT011439 , and U19NS128613 , US Army Research Office grant MURI W911NF1910280 , Human Frontier Science Program grant RGP0036 , the JPND Program, the Dr. Miriam and Sheldon G. Adelson Medical Research Foundation , and Simons Foundation grant 811237 . We thank Dan Xue and Anna Xavier for expert graphical and technical support.

Publisher Copyright:
© 2023

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