Sensitivity of the erythrocyte membrane bilayer to subhemolytic mechanical trauma as detected by fluorescence anisotropy. 1994

K M Dao, and E A O'Rear, and A E Johnson, and S E Peitersen
School of Chemical Engineering and Materials Science, University of Oklahoma, Norman 73019.

Exposure of human erythrocytes to subhemolytic shear stress is known to cause lipid loss and ion fluxes across the red cell membrane and to result in decreased filterability of suspensions of these cells. Damage to the lipid bilayer of traumatized erythrocytes has been examined by fluorescence anisotropy using the probe 1,6-diphenylhexatriene. Because literature methods for the introduction of the probe damaged the cells, a gentler method was developed using liposomes. Significant disruption of the lipid bilayer following subhemolytic trauma was detected by a decreased anisotropy of the membrane-bound fluorescent probe after stress.

UI MeSH Term Description Entries
D008055 Lipids A generic term for fats and lipoids, the alcohol-ether-soluble constituents of protoplasm, which are insoluble in water. They comprise the fats, fatty oils, essential oils, waxes, phospholipids, glycolipids, sulfolipids, aminolipids, chromolipids (lipochromes), and fatty acids. (Grant & Hackh's Chemical Dictionary, 5th ed) Lipid
D008081 Liposomes Artificial, single or multilaminar vesicles (made from lecithins or other lipids) that are used for the delivery of a variety of biological molecules or molecular complexes to cells, for example, drug delivery and gene transfer. They are also used to study membranes and membrane proteins. Niosomes,Transferosomes,Ultradeformable Liposomes,Liposomes, Ultra-deformable,Liposome,Liposome, Ultra-deformable,Liposome, Ultradeformable,Liposomes, Ultra deformable,Liposomes, Ultradeformable,Niosome,Transferosome,Ultra-deformable Liposome,Ultra-deformable Liposomes,Ultradeformable Liposome
D008297 Male Males
D004161 Diphenylhexatriene A fluorescent compound that emits light only in specific configurations in certain lipid media. It is used as a tool in the study of membrane lipids. 1,6-Diphenyl-1,3,5-hexatriene,1,6-Diphenylhexatriene,1,6 Diphenylhexatriene
D004907 Erythrocyte Deformability Ability of ERYTHROCYTES to change shape as they pass through narrow spaces, such as the microvasculature. Erythrocyte Filterability,Deformability, Erythrocyte,Filterability, Erythrocyte
D004910 Erythrocyte Membrane The semi-permeable outer structure of a red blood cell. It is known as a red cell 'ghost' after HEMOLYSIS. Erythrocyte Ghost,Red Cell Cytoskeleton,Red Cell Ghost,Erythrocyte Cytoskeleton,Cytoskeleton, Erythrocyte,Cytoskeleton, Red Cell,Erythrocyte Cytoskeletons,Erythrocyte Ghosts,Erythrocyte Membranes,Ghost, Erythrocyte,Ghost, Red Cell,Membrane, Erythrocyte,Red Cell Cytoskeletons,Red Cell Ghosts
D004912 Erythrocytes Red blood cells. Mature erythrocytes are non-nucleated, biconcave disks containing HEMOGLOBIN whose function is to transport OXYGEN. Blood Cells, Red,Blood Corpuscles, Red,Red Blood Cells,Red Blood Corpuscles,Blood Cell, Red,Blood Corpuscle, Red,Erythrocyte,Red Blood Cell,Red Blood Corpuscle
D005260 Female Females
D005454 Fluorescence Polarization Measurement of the polarization of fluorescent light from solutions or microscopic specimens. It is used to provide information concerning molecular size, shape, and conformation, molecular anisotropy, electronic energy transfer, molecular interaction, including dye and coenzyme binding, and the antigen-antibody reaction. Anisotropy, Fluorescence,Fluorescence Anisotropy,Polarization, Fluorescence,Anisotropies, Fluorescence,Fluorescence Anisotropies,Fluorescence Polarizations,Polarizations, Fluorescence
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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