Results 291 to 300 of about 318,767 (318)
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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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Phosphorylation of Ion channels
The Journal of Membrane Biology, 1985The introduction of highly specific reagents such as enzymes and inhibitors directly into living cells has proven to be a powerful tool in studying the modulation of cellular activity by protein phosphorylation. The use of exogenous kinases can be thought of as a pharmacological approach: this demonstrates that phosphorylation can produce modulation ...
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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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Current Pharmaceutical Design, 2005
The role of voltage-gated and ligand-gated ion channels in epileptogenesis of both genetic and acquired epilepsies, and as targets in the development of new antiepileptic drugs (AEDs) is reviewed. Voltage-gated Na+ channels are essential for action potentials, and their mutations are the substrate for generalised epilepsy with febrile seizures plus and
J A, Armijo +5 more
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The role of voltage-gated and ligand-gated ion channels in epileptogenesis of both genetic and acquired epilepsies, and as targets in the development of new antiepileptic drugs (AEDs) is reviewed. Voltage-gated Na+ channels are essential for action potentials, and their mutations are the substrate for generalised epilepsy with febrile seizures plus and
J A, Armijo +5 more
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Science, 1997
A brief touch can trigger immediate flight in an animal. In his Perspective, Grillner discusses a finding reported on page 1122 of this issue by Viana di Prisco et al . that may underlie this response. Transient stimulation on the skin of a lamprey causes a long-lasting excitation of the neurons that control motor behaviors, initiating ...
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A brief touch can trigger immediate flight in an animal. In his Perspective, Grillner discusses a finding reported on page 1122 of this issue by Viana di Prisco et al . that may underlie this response. Transient stimulation on the skin of a lamprey causes a long-lasting excitation of the neurons that control motor behaviors, initiating ...
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Trends in Neurosciences, 1995
Transmembrane ion channels regulate the movement of ions (particularly Na+, K+, Ca2+ and Cl-) across cellular membranes, and are critical to numerous aspects of neurobiology. Cells express a diverse array of ion-channel proteins that vary widely in their ion selectivity and in their modulation by ligands (such as neurotransmitters) or by membrane ...
W N, Green, N S, Millar
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Transmembrane ion channels regulate the movement of ions (particularly Na+, K+, Ca2+ and Cl-) across cellular membranes, and are critical to numerous aspects of neurobiology. Cells express a diverse array of ion-channel proteins that vary widely in their ion selectivity and in their modulation by ligands (such as neurotransmitters) or by membrane ...
W N, Green, N S, Millar
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EcoSal Plus, 2010
Bacterial ion channels were known, but only in special cases, such as outer membrane porins in Escherichia coli and bacterial toxins that form pores in their target (bacterial or mammalian) membranes. The exhaustive coverage provided by a decade of bacterial genome sequencing has revealed that ion channels are ...
Emma L R, Compton, Joseph A, Mindell
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Bacterial ion channels were known, but only in special cases, such as outer membrane porins in Escherichia coli and bacterial toxins that form pores in their target (bacterial or mammalian) membranes. The exhaustive coverage provided by a decade of bacterial genome sequencing has revealed that ion channels are ...
Emma L R, Compton, Joseph A, Mindell
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2019
Since its discovery, aldosterone and ion modulation have been entwined. While scientific investigations throughout the decades have emphasized aldosterone's connection to Na+, K+, and H+ homeostasis, more recent research has demonstrated a relationship between aldosterone and Mg2+, Ca2+, and Cl- homeostasis. The mechanisms connecting aldosterone to ion
William C, Valinsky +2 more
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Since its discovery, aldosterone and ion modulation have been entwined. While scientific investigations throughout the decades have emphasized aldosterone's connection to Na+, K+, and H+ homeostasis, more recent research has demonstrated a relationship between aldosterone and Mg2+, Ca2+, and Cl- homeostasis. The mechanisms connecting aldosterone to ion
William C, Valinsky +2 more
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Science, 1986
Voltage-dependent ion channels have been found in the plasma membrane of the yeast Saccharomyces cerevisiae . Ion channel activities were recorded from spheroplasts or patches of plasma membrane with the patch-clamp technique. The most prominent activities came from a set of potassium channels with the properties of
M C, Gustin +4 more
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Voltage-dependent ion channels have been found in the plasma membrane of the yeast Saccharomyces cerevisiae . Ion channel activities were recorded from spheroplasts or patches of plasma membrane with the patch-clamp technique. The most prominent activities came from a set of potassium channels with the properties of
M C, Gustin +4 more
openaire +2 more sources