Search Results - "Antollini, Silvia S."

Alzheimer's Disease as a Membrane Disorder: Spatial Cross-Talk Among Beta-Amyloid Peptides, Nicotinic Acetylcholine Receptors and Lipid Rafts by Fabiani, Camila, Antollini, Silvia S

“…Biological membranes show lateral and transverse asymmetric lipid distribution. Cholesterol (Chol) localizes in both hemilayers, but in the external one it is…”
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Carlos Gutiérrez-Merino: Synergy of Theory and Experimentation in Biological Membrane Research by Antollini, Silvia S, Barrantes, Francisco J

“…Professor Carlos Gutiérrez-Merino, a prominent scientist working in the complex realm of biological membranes, has made significant theoretical and…”
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Fatty Acid Regulation of Voltage- and Ligand-Gated Ion Channel Function by Antollini, Silvia S, Barrantes, Francisco J

“…Free fatty acids (FFA) are essential components of the cell, where they play a key role in lipid and carbohydrate metabolism, and most particularly in cell…”
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Transbilayer asymmetry and sphingomyelin composition modulate the preferential membrane partitioning of the nicotinic acetylcholine receptor in Lo domains by Perillo, Vanesa L., Peñalva, Daniel A., Vitale, Alejandro J., Barrantes, Francisco J., Antollini, Silvia S.

“…We have previously shown that the intact nicotinic acetylcholine receptor (AChR) lacks preference for Lo domains when reconstituted in a sphingomyelin (SM),…”
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Free cholesterol and cholesterol esters in bovine oocytes: Implications in survival and membrane raft organization after cryopreservation by Buschiazzo, Jorgelina, Ríos, Glenda L, Canizo, Jesica R, Antollini, Silvia S, Alberio, Ricardo H

“…Part of the damage caused by cryopreservation of mammalian oocytes occurs at the plasma membrane. The addition of cholesterol to cell membranes as a strategy…”
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Very Long-chain Polyunsaturated Fatty Acids Are the Major Acyl Groups of Sphingomyelins and Ceramides in the Head of Mammalian Spermatozoa by Furland, Natalia E., Oresti, Gerardo M., Antollini, Silvia S., Venturino, Andrés, Maldonado, Eduardo N., Aveldaño, Marta I.

“…Very long-chain (C24 to C34) polyunsaturated fatty acids (VLCPUFA) are important constituents of sphingomyelin (SM) and ceramide (Cer) in testicular germ…”
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Unique thermal behavior of sphingomyelin species with nonhydroxy and 2-hydroxy very-long-chain (C28-C32) PUFAs by Peñalva, Daniel A., Furland, Natalia E., López, Gustavo H., Aveldaño, Marta I., Antollini, Silvia S.

“…In rat germ cells and spermatozoa, sphingomyelin (SM) contains molecular species with nonhydroxy (n) and 2-hydroxy (h) very-long-chain polyunsaturated fatty…”
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Partition profile of the nicotinic acetylcholine receptor in lipid domains upon reconstitution[S] by Bermúdez, Vicente, Antollini, Silvia S., Nievas, Gaspar A. Fernández, Aveldaño, Marta I., Barrantes, Francisco J.

“…The nicotinic acetylcholine receptor (AChR) is in intimate contact with the lipids in its native membrane. Here we analyze the possibility that it is the…”
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Modulation of Nicotinic Acetylcholine Receptor Conformational State by Free Fatty Acids and Steroids by Nievas, Gaspar A. Fernández, Barrantes, Francisco J., Antollini, Silvia S.

“…Steroids and free fatty acids (FFA) are noncompetitive antagonists of the nicotinic acetylcholine receptor (AChR). Their site of action is purportedly located…”
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New Synthetic Caffeine Analogs as Modulators of the Cholinergic System by Fabiani, Camila, Biscussi, Brunella, Munafó, Juan P, Murray, Ana P, Corradi, Jeremías, Antollini, Silvia S

“…Alzheimer's disease is a multifactorial neurodegenerative disorder. Since cholinergic deficit is a major factor in this disease, two molecular targets for its…”
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Cholesterol and desmosterol incorporation into ram sperm membrane before cryopreservation: Effects on membrane biophysical properties and sperm quality by Carro, María de las Mercedes, Peñalva, Daniel A., Antollini, Silvia S., Hozbor, Federico A., Buschiazzo, Jorgelina

“…Ram sperm are particularly sensitive to freeze-thawing mainly due to their lipid composition, limiting their use in artificial insemination programs. We…”
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Oleic Acid Could Act as a Channel Blocker in the Inhibition of nAChR: Insights from Molecular Dynamics Simulations by Obiol, Diego J., Amundarain, María J., Zamarreño, Fernando, Vietri, Agustín, Antollini, Silvia S., Costabel, Marcelo D.

“…The activation of the muscular nicotinic acetylcholine receptor (nAChR) produces the opening of the channel, with the consequent increase in the permeability…”
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Unique Effects of Different Fatty Acid Species on the Physical Properties of the Torpedo Acetylcholine Receptor Membrane by Antollini, Silvia S, Barrantes, Francisco J

“…To study the effects produced by free fatty acids (FFA) on the biophysical properties of Torpedo marmorata nicotinic acetylcholine receptor-rich native…”
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Membrane Restructuring Events during the Enzymatic Generation of Ceramides with Very Long-Chain Polyunsaturated Fatty Acids by Peñalva, Daniel A, Antollini, Silvia S, Ambroggio, Ernesto E, Aveldaño, Marta I, Fanani, María L

“…In rat sperm heads, sphingomyelin (SM) species that contain very long-chain polyunsaturated fatty acid (V-SM) become ceramides (V-Cer) after inducing in vitro…”
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Lipid Biochemical and Biophysical Changes in Rat Spermatozoa During Isolation and Functional Activation In Vitro1 by Oresti, Gerardo M, Peñalva, Daniel A, Luquez, Jessica M, Antollini, Silvia S, Aveldaño, Marta I

“…In spermatozoa isolated from rat epididymis, lipids are differentially modified after in vitro induction of capacitation (Cap) and the acrosomal reaction (AR)…”
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alpha 7-type acetylcholine receptor localization and its modulation by nicotine and cholesterol in vascular endothelial cells by Peña, Victoria B Ayala, Bonini, Ida C, Antollini, Silvia S, Kobayashi, Toshihide, Barrantes, Francisco J

“…The neuronal-type α7 nicotinic acetylcholine receptor (α7AChR) is also found in various non-neural tissues, including vascular endothelium, where its peculiar…”
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Lipid Biochemical and Biophysical Changes in Rat Spermatozoa During Isolation and Functional Activation In Vitro by Oresti, Gerardo M, Peñalva, Daniel A, Luquez, Jessica M, Antollini, Silvia S, Aveldaño, Marta I

“…In spermatozoa isolated from rat epididymis, lipids are differentially modified after in vitro induction of capacitation (Cap) and the acrosomal reaction (AR)…”
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Atypical surface behavior of ceramides with nonhydroxy and 2-hydroxy very long-chain (C28–C32) PUFAs by Peñalva, Daniel A., Oresti, Gerardo M., Dupuy, Fernando, Antollini, Silvia S., Maggio, Bruno, Aveldaño, Marta I., Fanani, María L.

“…Unique species of ceramide (Cer) with very-long-chain polyunsaturated fatty acid (VLCPUFA), mainly 28–32 carbon atoms, 4–5 double bonds, in nonhydroxy and…”
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The position of the double bond in monounsaturated free fatty acids is essential for the inhibition of the nicotinic acetylcholine receptor by Perillo, Vanesa L., Fernández-Nievas, Gaspar A., Vallés, Ana S., Barrantes, Francisco J., Antollini, Silvia S.

“…Free fatty acids (FFAs) are non-competitive antagonists of the nicotinic acetylcholine receptor (AChR). Their site of action is supposedly located at the…”
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Thermal behavior of liposomes containing PCs with long and very long chain PUFAs isolated from retinal rod outer segment membranes by Antollini, Silvia S, Aveldaño, Marta I

“…About one-fourth the phosphatidylcholines (PC) from retina photoreceptor rod outer segment (ROS) membranes contain docosahexaenoic acid (22:6n-3) at sn-2 and a…”
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