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Investigation of changes in fluidity of brain membranes in mice bearing experimental Alzheimer’s disease using spin labeling electron paramagnetic resonance

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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-γ-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.

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Authors and Affiliations

  1. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, 119334, Russia

    N. Yu. Gerasimov, A. N. Goloshchapov & E. B. Burlakova

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  1. N. Yu. Gerasimov
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  2. A. N. Goloshchapov
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  3. E. B. Burlakova
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Correspondence to N. Yu. Gerasimov.

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Original Russian Text © N.Yu. Gerasimov, A.N. Goloshchapov, E.B. Burlakova, 2013, published in Biofizika, 2013, Vol. 58, No. 2, pp. 252–256.

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Gerasimov, N.Y., Goloshchapov, A.N. & Burlakova, E.B. Investigation of changes in fluidity of brain membranes in mice bearing experimental Alzheimer’s disease using spin labeling electron paramagnetic resonance. BIOPHYSICS 58, 183–186 (2013). https://doi.org/10.1134/S0006350913020085

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  • DOI: https://doi.org/10.1134/S0006350913020085

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