title: [Investigation of changes in fluidity of brain membranes in mice bearing experimental Alzheimer's disease using spin labeling electron paramagnetic resonance].
abstract: Changes in fluidity of membranes isolated from the microsomal and crude synaptosomal fractions which were obtained from forebrain tissue of mice bearing experimental Alzheimer's disease induced with olfactory bulbectomy were studied. Membrane microviscosity was measured by electron paramagnetic resonance with 2,2,6,6-tetramethyl-4-capryloyl-oxypiperidine-1-oxyl and 5,6-benzo-2,2,6,6-tetramethyl-1,2,3,4-tetrahydro-gamma-carboline-3-oxyl as spin labeling. Phasic alterations in relative fluidity were found during the development of experimental Alzheimer's disease pathology. These changes correlate with the stages of "clinical" features. Main abnormalities were related to structural changes in near-protein region of the lipid bilayer.
authors.forename: N Iu
authors.initials: NIu
authors.lastname: Gerasimov
authors.forename: A N
authors.initials: AN
authors.lastname: Goloshchapov
authors.forename: E B
authors.initials: EB
authors.lastname: Burlakova
mesh_terms: D000544:Alzheimer Disease / Q000378:metabolism / Q000473:pathology; D000818:Animals; D002210:Caprylates; D002462:Cell Membrane / Q000737:chemistry* / Q000378:metabolism; D003497:Cyclic N-Oxides; D004578:Electron Spin Resonance Spectroscopy; D006801:Humans; D051379:Mice; D016548:Prosencephalon / Q000166:cytology / Q000378:metabolism; D013113:Spin Labels; D014783:Viscosity
chemical_list: D002210:Caprylates; D003497:Cyclic N-Oxides; D013113:Spin Labels; C072536:2,2,6,6-tetramethyl-4-capryloyl-oxypiperidine-1-oxyl