title: Regulation of cerebral cholesterol metabolism in Alzheimer disease.
abstract: Alzheimer disease (AD) is an age-related neurodegenerative disorder that manifests as a progressive loss of memory and deterioration of higher cognitive functions. Alzheimer disease is characterized by accumulation in the brain of the β-amyloid peptide generated by β- and γ-secretase processing of amyloid precursor protein. Epidemiological studies have linked elevated plasma cholesterol and lipoprotein levels in midlife with AD development. Cholesterol-fed animal models exhibit neuropathologic features of AD including accumulation of β-amyloid peptide. Specific isoforms of the cholesterol transporter apolipoprotein E are associated with susceptibility to AD. Although multiple lines of evidence indicate a role for cholesterol in AD, the exact impact and mechanisms involved remain largely unknown. This review summarizes the current state of our knowledge of the influence of cholesterol and lipid pathways in AD pathogenesis in vitro and in vivo.
authors.affiliation: Winthrop Research Institute, Department of Medicine, Winthrop University Hospital, Mineola, NY 11501, USA. AReiss@winthrop.org
authors.forename: Allison B
authors.initials: AB
authors.lastname: Reiss
authors.forename: Iryna
authors.initials: I
authors.lastname: Voloshyna
mesh_terms: D000544:Alzheimer Disease / Q000378:metabolism* / Q000473:pathology; D016229:Amyloid beta-Peptides / Q000378:metabolism; D000818:Animals; D001921:Brain / Q000378:metabolism*; D002784:Cholesterol / Q000378:metabolism*; D006801:Humans; D050356:Lipid Metabolism / Q000502:physiology; D015398:Signal Transduction / Q000502:physiology
chemical_list: D016229:Amyloid beta-Peptides; D002784:Cholesterol