Glymphatic system

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Glymphatic System

The Glymphatic System (pronunciation: /ɡlɪmˈfætɪk/ system) is a functional waste clearance pathway for the Central Nervous System (CNS) that was discovered in the early 21st century. The term "glymphatic" is a portmanteau derived from "glial" and "lymphatic".

Etymology

The term "glymphatic" was coined by the Danish researchers Maiken Nedergaard and Helene Benveniste to describe the glial cells' role in the system that functions similarly to the lymphatic system in the rest of the body.

Function

The glymphatic system promotes the elimination of soluble proteins and metabolites from the CNS, and facilitates brain lipid transportation. It also contributes to the distribution of several compounds, such as glucose, lipids, amino acids, growth factors, and neuromodulators.

Structure

The glymphatic system is composed of a network of vessels that run alongside blood vessels, which are lined with astrocytic end-feet expressing aquaporin-4 water channels.

Clinical Significance

The glymphatic system has been found to play a key role in neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, and Huntington's disease. It is also involved in brain aging, brain trauma, and stroke.

See Also

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External links

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