presynaptic
Posted: Sun Nov 17, 2019 11:50 am
presinaptik
presynaptic için tanımlar
Sıfat
1
relating to or denoting a nerve cell that releases a transmitter substance into a synapse during transmission of an impulse.
The vesicles within the presynaptic axonal varicosities store the neurotransmitters that are synthesized there by special biochemical systems.
presynaptic örnekleri
The release of neurotransmitter is variable and dependent on the properties of the presynaptic terminal.
Molecular features of the phasic and tonic presynaptic nerve terminals are currently under investigation.
Norepinephrine is a potent vasoconstrictor synthesized from tyrosine in the presynaptic neuron.
It does so by blocking the normal presynaptic reuptake, causing an increase in function or activity level of these transmitters.
The toxin irreversibly binds to presynaptic cholinergic receptors at motor nerve terminals and is subsequently internalized.
The authors proposed a mechanism of action whereby the calcium channel blocker inhibited the presynaptic release of neurotransmitters.
The properties of the presynaptic neuron can also be influenced by the cell with which it makes a synapse.
Alpha - 2 receptors are located on the presynaptic neuron.
Depolarization of the presynaptic membrane causes release of acetylcholine into the synaptic cleft.
Postsynaptic proteins receive the neurotransmitters released by presynaptic proteins.
Instead, transmission is accomplished by the release of a chemical neurotransmitter substance from the presynaptic fibre.
A variety of experiments indicate that single synaptic connections exhibit a broad distribution of presynaptic release probabilities.
The vesicles within the presynaptic axonal varicosities store the neurotransmitters that are synthesized there by special biochemical systems.
The stimulants promote the release of dopamine and norepinephrine from presynaptic neurons into the synaptic cleft but then block reuptake by these same neurons.
This occurs at chemical synapses when neurotransmitters are released from the presynaptic neuron and produce excitation or inhibition of the postsynaptic cell.
Most of the clinically significant symptoms of dissociatives are produced by presynaptic dopamine stimulation and cholinergic antagonism.
The second mechanism of TCA cardiotoxicity involves the blockade of norepinephrine uptake at the adrenergic presynaptic endings.
From a screen of 24,000 mutagenized flies, 17 mutants with presynaptic defects in synaptic transmission were recovered.
With this low level of presynaptic stimulation, quantal currents could be resolved.
In presynaptic inhibition, synapses are temporarily ‘decommissioned’ to weaken the response; but in other cases, they are added to strengthen it.
Glutamate is released presynaptically and binds to a postsynaptic receptor gating a cation-selective channel, thus depolarizing the post-synaptic cell.
Cocaine blocks the reuptake of catecholamines presynaptically .
We find that the occurrence of glia postsynaptically is strikingly higher than presynaptically , in both types of synapses.
presynaptic için tanımlar
Sıfat
1
relating to or denoting a nerve cell that releases a transmitter substance into a synapse during transmission of an impulse.
The vesicles within the presynaptic axonal varicosities store the neurotransmitters that are synthesized there by special biochemical systems.
presynaptic örnekleri
The release of neurotransmitter is variable and dependent on the properties of the presynaptic terminal.
Molecular features of the phasic and tonic presynaptic nerve terminals are currently under investigation.
Norepinephrine is a potent vasoconstrictor synthesized from tyrosine in the presynaptic neuron.
It does so by blocking the normal presynaptic reuptake, causing an increase in function or activity level of these transmitters.
The toxin irreversibly binds to presynaptic cholinergic receptors at motor nerve terminals and is subsequently internalized.
The authors proposed a mechanism of action whereby the calcium channel blocker inhibited the presynaptic release of neurotransmitters.
The properties of the presynaptic neuron can also be influenced by the cell with which it makes a synapse.
Alpha - 2 receptors are located on the presynaptic neuron.
Depolarization of the presynaptic membrane causes release of acetylcholine into the synaptic cleft.
Postsynaptic proteins receive the neurotransmitters released by presynaptic proteins.
Instead, transmission is accomplished by the release of a chemical neurotransmitter substance from the presynaptic fibre.
A variety of experiments indicate that single synaptic connections exhibit a broad distribution of presynaptic release probabilities.
The vesicles within the presynaptic axonal varicosities store the neurotransmitters that are synthesized there by special biochemical systems.
The stimulants promote the release of dopamine and norepinephrine from presynaptic neurons into the synaptic cleft but then block reuptake by these same neurons.
This occurs at chemical synapses when neurotransmitters are released from the presynaptic neuron and produce excitation or inhibition of the postsynaptic cell.
Most of the clinically significant symptoms of dissociatives are produced by presynaptic dopamine stimulation and cholinergic antagonism.
The second mechanism of TCA cardiotoxicity involves the blockade of norepinephrine uptake at the adrenergic presynaptic endings.
From a screen of 24,000 mutagenized flies, 17 mutants with presynaptic defects in synaptic transmission were recovered.
With this low level of presynaptic stimulation, quantal currents could be resolved.
In presynaptic inhibition, synapses are temporarily ‘decommissioned’ to weaken the response; but in other cases, they are added to strengthen it.
Glutamate is released presynaptically and binds to a postsynaptic receptor gating a cation-selective channel, thus depolarizing the post-synaptic cell.
Cocaine blocks the reuptake of catecholamines presynaptically .
We find that the occurrence of glia postsynaptically is strikingly higher than presynaptically , in both types of synapses.