Results 191 to 200 of about 351,171 (240)
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Apical membrane permeability of MDCK cells
American Journal of Physiology-Cell Physiology, 1996The osmotic water permeability (Pf) and permeability to nonelectrolytes were determined for the apical membrane of clonal strain Madin-Darby canine kidney (MDCK) C12 cells cultured as cysts with the apical membrane facing the surrounding medium. Pf and solute permeabilities were calculated from the rate of volume change of cysts by digitizing images ...
Bret A. Connors +5 more
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Genetic engineering of proteins with cell membrane permeability [PDF]
Nature Biotechnology, 1998 The discovery of methods for generating proteins with inherent cell membrane-translocating activity will expand our ability to study and manipulate various intracellular processes in living systems. We report a method to engineer proteins with cell-membrane permeability.
Mauricio Rojas +3 more
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The Permeability of Plant Cell Membrane to Sugar [PDF]
Nature, 1929 THIS communication deals with a glucose effect on the permeability of cell membranes to sugar molecules as studied by the intensity of respiration when leaves of Artocarpus Integrifolia were injected with varying concentrations of glucose solution.
R. S. Inamdar, K. V. Varadpande
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Cell Membrane Permeability and Hypertension
1984A great deal of evidence has been presented which suggests that a generalized increase in cell membrane permeability to various ions is a fundamental defect associated with hypertension. In addition, some of the evidence is supportive of a central role of this defect in the pathogenesis of hypertension.
P B Furspan, D F Bohr
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Micropatterning Cells on Permeable Membrane Filters
2014Epithelium is abundantly present in the human body as it lines most major organs. Therefore, ensuring the proper function of epithelium is pivotal for successfully engineering whole organ replacements. An important characteristic of mature epithelium is apical-basal polarization which can be obtained using the air-liquid interface (ALI) culture system.
Ana C. Paz +2 more
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Insulin and the Permeability of Cell Membranes to Glucose
Nature, 1953THE effect of insulin in accelerating the peripheral utilization of glucose is generally ascribed to an action on the enzymic carrier system responsible for the intracellular oxidation of glucose, in which the first step is the hexokinase reaction.
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Membrane permeability equations and their solutions for red cells
The Journal of Membrane Biology, 1977The mathematical equations for the transport of nonelectrolytes across cell membranes are critically examined and cast in forms suitable for solution which involve fewer approximations than has heretofore been commonly done. For the use of red cells, the equations are developed to include the effect of the variation in apparent nonosmotic water owing ...
A. K. Solomon, Jerome H. Milgram
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Electrogenic systems of a cell and membrane permeability
Bioelectrochemistry and Bioenergetics, 1983Summary The equation of membrane potential (Δψ) for electrogenic cation pump operation has been developed. The expression obtained can be equally used for the description of Δψ created by any electrogenerator that transduces light or chemical energy into electrochemical potential difference.
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Asymmetrically Permeable Membrane Channels in Cell Junction
Science, 1980Asymmetric membrane junctions were formed in culture by pairing two cell types which, in their respective homologous junctions, have cell-cell channels of different permselectivities. The channels in the asymmetric junction, presumably made of unequal channel precursors, displayed directional permselectivity; fluorescent labeled glutamic acid (700 ...
Werner R. Loewenstein +1 more
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Membrane permeability of isolated lung cells to nonelectrolytes
American Journal of Physiology-Cell Physiology, 1977Mixtures of viable endothelial and epithelial cells were separated by enzymatic digestion from rabbit lung and recovered by centrifugation. The cells were mixed with an extracellular marker and packed by centrifugation into small-diameter polyethylene tubing and pulsed with tritiated water and 14C-labeled alcohols.
R. A. Garrick, W. R. Redwood
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