Cholesterol in the CNS: functions, recycling and remyelination.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing mechanistic concepts and literature without systematic search methodology or original human data
PubMed 40646563 · doi:10.1186/s12974-025-03490-8
What was done
This narrative review synthesized literature on the physiological roles of cholesterol in the central nervous system (CNS), mechanisms of lipid metabolism and recycling among neural cells required for remyelination, the contribution of cholesterol dysregulation to multiple sclerosis pathology, and proposed therapeutic strategies targeting cholesterol metabolism (including statins, cyclodextrins, and liver X receptor agonists).
What was found
The abstract reports no empirical numbers or quantitative findings. It notes that the brain accounts for approximately 25% of total body cholesterol, which remains sequestered from peripheral sources and relies on internal recycling pathways that, when disrupted, contribute to central nervous system pathology.
Why it matters
It outlines how local CNS cholesterol transport and recycling mechanisms facilitate remyelination, framing lipid metabolism as a potential therapeutic target in multiple sclerosis.
Limits
As a narrative review, it presents no primary data or quantitative synthesis. The abstract does not define systematic literature inclusion criteria or evaluate risk of bias across cited studies.
Cited by
- supports 25% of the total cholesterol in the human body is located in the brain.