| Literature DB >> 15797830 |
Jean E Vance1, Hideki Hayashi, Barbara Karten.
Abstract
Cholesterol is highly enriched in the brain compared to other tissues. Essentially all cholesterol in the brain is synthesized endogenously since plasma lipoproteins are unable to cross the blood-brain barrier. Cholesterol is transported within the central nervous system in the form of apolipoprotein E-containing lipoprotein particles that are secreted mainly by glial cells. Cholesterol is excreted from the brain in the form of 24-hydroxycholesterol. Apolipoprotein E and cholesterol have been implicated in the formation of amyloid plaques in Alzheimer's disease. In addition, the progressive neurodegenerative disorder Niemann-Pick C disease is characterized by defects in intracellular trafficking of cholesterol.Entities:
Mesh:
Substances:
Year: 2005 PMID: 15797830 DOI: 10.1016/j.semcdb.2005.01.005
Source DB: PubMed Journal: Semin Cell Dev Biol ISSN: 1084-9521 Impact factor: 7.727