Results 261 to 270 of about 2,877,371 (319)
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Electropermeabilization of cell membranes
Advanced Drug Delivery Reviews, 1999A position dependent modulation of the membrane potential difference is induced when an electric field is applied to a cell. When cells are submitted to short lived electric field pulses with an overcritical intensity, a local membrane alteration is induced, which may reseal. Its molecular definition remains unknown.
, Teissié, , Eynard, , Gabriel, , Rols
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Microviscosity of the cell membrane
Biochimica et Biophysica Acta (BBA) - Biomembranes, 1972Abstract The microvisocisty in the membrane interior of hemoglobin-free erythrocyte membranes, lymphocytes and submitochondrial particles was derived from an adequate comparison of the degree of fluorescence polarization of perylene when dissolved in the tested membranes and in a reference oil of known viscosity.
B, Rudy, C, Gitler
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Cell Membranes in Cytotoxicity
1977Silica particles are cytotoxic for macrophages because they damage the membranes around secondary lysosomes in which the particles are engulfed. Hydroxyl groups of silicic acid on the surface of the particles form hydrogen bonds with phosphate ester groups of phospholipids and disrupt a variety of natural and artificial membranes.
A C, Allison, J, Ferluga
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The Cell Membrane of Mycoplasmas
Annals of the New York Academy of Sciences, 1967Most mycoplasmologists support the proposal of Gibbons and Murray (1978) endowing the mycoplasmas with the lofty status of one of the four major divisions in the kindgom Procaryotae, the division named Mollicutes (mollis soft + cutes skin) to denote the lack of cell walls in these organisms.
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Cell Membranes and Morphogenesis
Nature, 1956CELL membranes can be readily visualized in the electron microscope; but a rather special cell system is needed if one wishes to study their supposed role1,2 in morphogenesis. In the hair follicle we have been able to examine at high resolution a system which fulfils most of the electron microscopist's demands.
M S, BIRBECK, E H, MERCER
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Annual Review of Physiology, 1983
"The calcium ion has an unusual importance in biological phenomena, and the literature concerning its effects is extremely voluminous." That this statement, written more than 30 years ago (1), also describes the situation today was certainly expected if not anticipated by L. V.
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"The calcium ion has an unusual importance in biological phenomena, and the literature concerning its effects is extremely voluminous." That this statement, written more than 30 years ago (1), also describes the situation today was certainly expected if not anticipated by L. V.
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The American Journal of the Medical Sciences, 1988
Several alterations in membrane transport systems are observed in rat and human hypertension. Na+ flux changes are numerous, and cellular homeostasis to Na+ loading is impaired. Transmembrane Ca2+ movements are also numerous but clearly defined by a reduction in Ca2+ binders, a hypersensitivity of membrane phospholipase C, possible increased Ca2+ leak ...
P, Meyer, P, Marche
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Several alterations in membrane transport systems are observed in rat and human hypertension. Na+ flux changes are numerous, and cellular homeostasis to Na+ loading is impaired. Transmembrane Ca2+ movements are also numerous but clearly defined by a reduction in Ca2+ binders, a hypersensitivity of membrane phospholipase C, possible increased Ca2+ leak ...
P, Meyer, P, Marche
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Clinical Orthopaedics and Related Research, 1982
While many, if not most, of the details remain to be worked out, bone cell function is increasingly being explained in terms of cell membrane phenomena. Ultrastructurally, bone cell membranes do not show remarkable features beyond those associated with the ruffled border and clear zone of the osteoclast or specializations associated with the formation ...
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While many, if not most, of the details remain to be worked out, bone cell function is increasingly being explained in terms of cell membrane phenomena. Ultrastructurally, bone cell membranes do not show remarkable features beyond those associated with the ruffled border and clear zone of the osteoclast or specializations associated with the formation ...
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Physical Review E, 1995
The other equation of the set resembles an equation derived from the Nernst-Planck equation, which describes transmembrane ion transport and hence provides a mechanism for transmembrane potential variation. A more complete calculation of the velocity of the asymptotic wave form shows a lower wave speed than the estimate of Nagumo {ital et} {ital al ...
, Das, , Schwarz
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The other equation of the set resembles an equation derived from the Nernst-Planck equation, which describes transmembrane ion transport and hence provides a mechanism for transmembrane potential variation. A more complete calculation of the velocity of the asymptotic wave form shows a lower wave speed than the estimate of Nagumo {ital et} {ital al ...
, Das, , Schwarz
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Annual Review of Biochemistry, 1976
PERSPECTIVES AND SUMMARy 667 INTRODUCTION 668 POLYPEPTIDES OF THE HUMAN RED CELL MEMBRANE 669 A Provisional Model for the Arrangement of the Major Proteins . . 671 Location 0/ extrinsic membrane proteins 672 The integral membrane proteins 676 The sialoglycopeptides (PAS-I, PAS-2, glycophorin A) 677 PAS-3 and the minor glycopeptides
V T, Marchesi, H, Furthmayr, M, Tomita
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PERSPECTIVES AND SUMMARy 667 INTRODUCTION 668 POLYPEPTIDES OF THE HUMAN RED CELL MEMBRANE 669 A Provisional Model for the Arrangement of the Major Proteins . . 671 Location 0/ extrinsic membrane proteins 672 The integral membrane proteins 676 The sialoglycopeptides (PAS-I, PAS-2, glycophorin A) 677 PAS-3 and the minor glycopeptides
V T, Marchesi, H, Furthmayr, M, Tomita
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