Results 51 to 60 of about 87,423 (320)

Biophysical constraints of optogenetic inhibition at presynaptic terminals. [PDF]

open access: yesNat Neurosci, 2016
We investigated the efficacy of optogenetic inhibition at presynaptic terminals using halorhodopsin, archaerhodopsin and chloride-conducting channelrhodopsins. Precisely timed activation of both archaerhodopsin and halorhodpsin at presynaptic terminals attenuated evoked release. However, sustained archaerhodopsin activation was paradoxically associated
Mahn M   +4 more
europepmc   +5 more sources

Optogenetic probing and manipulation of the calyx-type presynaptic terminal in the embryonic chick ciliary ganglion. [PDF]

open access: yesPLoS ONE, 2013
The calyx-type synapse of chick ciliary ganglion (CG) has been intensively studied for decades as a model system for the synaptic development, morphology and physiology.
Ryo Egawa   +6 more
doaj   +1 more source

Presynaptic Acetylcholine Receptors Modulate the Time Course of Action Potential-Evoked Acetylcholine Quanta Secretion at Neuromuscular Junctions

open access: yesBiomedicines, 2022
For effective transmission of excitation in neuromuscular junctions, the postsynaptic response amplitude must exceed a critical level of depolarization to trigger action potential spreading along the muscle-fiber membrane.
Ellya A. Bukharaeva   +3 more
doaj   +1 more source

Photooxidation-guided ultrastructural identification and analysis of cells in neuronal tissue labeled with green fluorescent protein. [PDF]

open access: yesPLoS ONE, 2013
The ultrastructural characterization of neuronal compartments in intact tissue labeled with green fluorescent protein (GFP) remains a frequently encountered challenge, despite work establishing photooxidation of GFP in cultured cells.
Heinz Horstmann   +2 more
doaj   +1 more source

Review: Dystroglycan in the Nervous System [PDF]

open access: yes, 2007
Dystroglycan is part of a large complex of proteins, the dystrophin-glycoprotein complex, which has been implicated in the pathogenesis of muscular dystrophies for a long time.
Matthias Samwald
core   +2 more sources

Presynaptically localized cyclic GMP-dependent protein kinase 1 is a key determinant of spinal synaptic potentiation and pain hypersensitivity. [PDF]

open access: yesPLoS Biology, 2012
Synaptic long-term potentiation (LTP) at spinal neurons directly communicating pain-specific inputs from the periphery to the brain has been proposed to serve as a trigger for pain hypersensitivity in pathological states.
Ceng Luo   +18 more
doaj   +1 more source

A role for GAT-1 in Presynaptic GABA Homeostasis?

open access: yesFrontiers in Cellular Neuroscience, 2011
In monoamine-releasing terminals, neurotransmitter transporters – in addition to terminating synaptic transmission by clearing released transmitters from the extracellular space - are the primary mechanism for replenishing transmitter stores and thus ...
Fiorenzo eConti   +5 more
doaj   +1 more source

Regulation of synaptic vesicle docking by different classes of macromolecules in active zone material. [PDF]

open access: yesPLoS ONE, 2012
The docking of synaptic vesicles at active zones on the presynaptic plasma membrane of axon terminals is essential for their fusion with the membrane and exocytosis of their neurotransmitter to mediate synaptic impulse transmission.
Joseph A Szule   +5 more
doaj   +1 more source

Allosteric modulation of retinal GABA receptors by ascorbic acid [PDF]

open access: yes, 2011
Ionotropic GABA receptors (GABAA and GABAC) belong to the Cys-loop receptor family of ligand-gated ion channels. GABAC receptors are highly expressed in the retina, mainly localized at the axon terminals of bipolar cells.
Aguayo, Luis G.   +5 more
core   +1 more source

Kainate receptors in developing presynaptic terminals [PDF]

open access: yesWiley Interdisciplinary Reviews: Membrane Transport and Signaling, 2011
AbstractThe formation of neuronal circuitry involves a period of activity‐dependent fine‐tuning and maturation of the connectivity, during which some of the nascent synapses are strengthened and others are eliminated. Many of the mechanisms utilized in this process are developmentally downregulated and replaced with synaptic machinery typical of adult ...
Lauri Sari, Taira Tomi
openaire   +1 more source

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