Results 221 to 230 of about 276,631 (268)
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Biochemistry, 2003
Fifteen years ago the presence of ion channels in the cytoplasmic membrane of bacteria was held by many to be inherently unlikely, given the prominent role played by the membrane in energy transduction. The presence of channels in the outer membrane of Gram negative bacteria was known and the physiological roles, structures and genetics were already ...
Ian R, Booth +2 more
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Fifteen years ago the presence of ion channels in the cytoplasmic membrane of bacteria was held by many to be inherently unlikely, given the prominent role played by the membrane in energy transduction. The presence of channels in the outer membrane of Gram negative bacteria was known and the physiological roles, structures and genetics were already ...
Ian R, Booth +2 more
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2021
Ion channels play a pivotal role in anesthesia, including general and regional anesthesia. Two main classes of general anesthetics (GAs) are inhalational anesthetics, such as isoflurane, sevoflurane, and nitrous oxide; injectable anesthetics, such as propofol, etomidate, and ketamine. Besides hypnotic agents, muscle relaxants for immobility and opioids
Wei, Zhou, Zhonghui, Guan
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Ion channels play a pivotal role in anesthesia, including general and regional anesthesia. Two main classes of general anesthetics (GAs) are inhalational anesthetics, such as isoflurane, sevoflurane, and nitrous oxide; injectable anesthetics, such as propofol, etomidate, and ketamine. Besides hypnotic agents, muscle relaxants for immobility and opioids
Wei, Zhou, Zhonghui, Guan
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Annual Review of Physiology, 2002
▪ Abstract The normal electrophysiologic behavior of the heart is determined by ordered propagation of excitatory stimuli that result in rapid depolarization and slow repolarization, thereby generating action potentials in individual myocytes. Abnormalities of impulse generation, propagation, or the duration and configuration of individual cardiac ...
Dan M, Roden +3 more
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▪ Abstract The normal electrophysiologic behavior of the heart is determined by ordered propagation of excitatory stimuli that result in rapid depolarization and slow repolarization, thereby generating action potentials in individual myocytes. Abnormalities of impulse generation, propagation, or the duration and configuration of individual cardiac ...
Dan M, Roden +3 more
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2010
Ion channels are integral membrane proteins that contain pathways through which ions can flow. By shifting between closed and open conformational states ('gating' process), they control passive ion flow through the plasma membrane. Channels can be gated by membrane potential, or specific ligands, or other agents, such as mechanical stimuli.
DI RESTA, CHIARA, BECCHETTI, ANDREA
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Ion channels are integral membrane proteins that contain pathways through which ions can flow. By shifting between closed and open conformational states ('gating' process), they control passive ion flow through the plasma membrane. Channels can be gated by membrane potential, or specific ligands, or other agents, such as mechanical stimuli.
DI RESTA, CHIARA, BECCHETTI, ANDREA
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Annals of the New York Academy of Sciences, 2002
Abstract:In this section eight presenters focus on three distinct aspects of chromaffin cell biology: first, the properties of neuronal nicotinic receptors; second, the shaping of the Ca2+signals that underlie chromaffin cell function; and third, the properties and expression of cell surface transporter proteins.
Powis, David A., Marley, Philip D.
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Abstract:In this section eight presenters focus on three distinct aspects of chromaffin cell biology: first, the properties of neuronal nicotinic receptors; second, the shaping of the Ca2+signals that underlie chromaffin cell function; and third, the properties and expression of cell surface transporter proteins.
Powis, David A., Marley, Philip D.
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Physical Review Letters, 1990
A relativistic electron beam propagating through a plasma in the ion-focused regime exhibits an electromagnetic instability with peak growth rate near a resonant frequency {omega}{similar to}2{gamma}{sup 2}{omega}{sub {beta}}. Growth is enhanced by optical guiding in the ion channel, which acts as a dielectric waveguide, with fiber parameter {ital V ...
, Whittum, , Sessler, , Dawson
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A relativistic electron beam propagating through a plasma in the ion-focused regime exhibits an electromagnetic instability with peak growth rate near a resonant frequency {omega}{similar to}2{gamma}{sup 2}{omega}{sub {beta}}. Growth is enhanced by optical guiding in the ion channel, which acts as a dielectric waveguide, with fiber parameter {ital V ...
, Whittum, , Sessler, , Dawson
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Journal of Applied Toxicology, 2010
AbstractIon channels play essential roles in human physiology and toxicology. Cardiac contraction, neural transmission, temperature sensing, insulin release, regulation of apoptosis, cellular pH and oxidative stress, as well as detection of active compounds from chilli, are some of the processes in which ion channels have an important role.
Iván, Restrepo-Angulo +2 more
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AbstractIon channels play essential roles in human physiology and toxicology. Cardiac contraction, neural transmission, temperature sensing, insulin release, regulation of apoptosis, cellular pH and oxidative stress, as well as detection of active compounds from chilli, are some of the processes in which ion channels have an important role.
Iván, Restrepo-Angulo +2 more
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Annual Review of Physiology, 1984
It may be reasonably argued that of all classes of known cellular proteins, the ion channels are the least understood biochemically. Of the large number of channel proteins known from cellular electrical behavior to exist in the mem branes of higher organisms, only three-the nicotinic acetylcholine receptor, the Na+ channel, and the mitochondrial ...
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It may be reasonably argued that of all classes of known cellular proteins, the ion channels are the least understood biochemically. Of the large number of channel proteins known from cellular electrical behavior to exist in the mem branes of higher organisms, only three-the nicotinic acetylcholine receptor, the Na+ channel, and the mitochondrial ...
openaire +2 more sources