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The First Cell Membranes [PDF]
Astrobiology, 2002 Organic compounds are synthesized in the interstellar medium and can be delivered to planetary surfaces such as the early Earth, where they mix with endogenous species. Some of these compounds are amphiphilic, having polar and nonpolar groups on the same molecule.
Louis J. Allamandola +4 more
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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.
Bruno Gabriel +3 more
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Compartmentalization of the Cell Membrane
Journal of Molecular Biology, 2016Many cell-membrane-associated processes require transient spatiotemporal separation of components on scales ranging from a couple of molecules to micrometers in size. Understanding these processes mechanistically involves understanding how lipids and proteins self-organize and interact with the cell cortex. Here, we review recent advances in dissecting
Arnd Pralle, Alf Honigmann
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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 cell membrane and receptors
Anaesthesia & Intensive Care Medicine, 2007Abstract The plasma membrane forms the interface between the cell and its environment. It is composed essentially of a phospholipid matrix and many different types of protein molecules which may be embedded within the matrix (integral proteins) or more loosely associated with the cytoplasmic ‘face’ of the membrane (peripheral proteins).
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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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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.
Bernardo Rudy, Carlos Gitler
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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. C. Birbeck, E. H. Mercer
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Cholesterol and the cell membrane
Biochimica et Biophysica Acta (BBA) - Reviews on Biomembranes, 1985Recent studies concerning cholesterol, its behavior and its roles in cell growth provide important new clues to the role of this fascinating molecule in normal and pathological states.
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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 ...
Philippe Meyer, Pierre 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 ...
Philippe Meyer, Pierre Marche
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