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glymphatic system
Pronunciation: GLIM-fat-ik
Brain-wide clearance pathway that removes metabolic waste and facilitates CSF-interstitial fluid exchange during sleep.
Full Definition
The glymphatic system is a recently discovered brain-wide clearance pathway that facilitates the removal of metabolic waste products and the exchange of cerebrospinal fluid with interstitial fluid. This system is most active during sleep and is crucial for clearing protein aggregates and inflammatory mediators from the central nervous system. Dysfunction of the glymphatic system has been implicated in various neuroinflammatory and neurodegenerative conditions.
Usage
Usage note: Capitalize when referring to the specific anatomical system; lowercase when used as an adjective (glymphatic clearance).
In Context
- "Impaired glymphatic system function may contribute to the accumulation of inflammatory proteins in multiple sclerosis." — Research article
- "Sleep disturbances can disrupt glymphatic clearance, potentially exacerbating neuroinflammatory processes." — Clinical review
Also known as
brain clearance system
paravascular clearance pathway
Don't confuse with
lymphatic system
meningeal lymphatics