Results 21 to 30 of about 65,541 (146)

Spontaneous Vesicle Recycling in the Synaptic Bouton

open access: yesFrontiers in Cellular Neuroscience, 2014
The trigger for synaptic vesicle exocytosis is Ca2+, which enters the synaptic bouton following action potential stimulation. However, spontaneous release of neurotransmitter also occurs in the absence of stimulation in virtually all synaptic boutons. It
Sven eTruckenbrodt   +4 more
doaj   +1 more source

Protocol for Quantitative Analysis of Synaptic Vesicle Clustering in Axons of Cultured Neurons

open access: yesSTAR Protocols, 2020
Summary: Clustering of synaptic vesicles along the neuronal axons is a critical mechanism underpinning proper synaptic transmission. Here, we provide a detailed protocol for analyzing the distribution of synaptic vesicles in presynaptic boutons of ...
Ji Won Um   +3 more
doaj   +1 more source

Vesicular GABA Uptake Can Be Rate Limiting for Recovery of IPSCs from Synaptic Depression

open access: yesCell Reports, 2018
Summary: Synaptic efficacy plays crucial roles in neuronal circuit operation and synaptic plasticity. Presynaptic determinants of synaptic efficacy are neurotransmitter content in synaptic vesicles and the number of vesicles undergoing exocytosis at a ...
Manami Yamashita   +3 more
doaj   +1 more source

Neurexin and neuroligins jointly regulate synaptic degeneration at the Drosophila neuromuscular junction based on TEM studies

open access: yesFrontiers in Cellular Neuroscience, 2023
The Drosophila larval neuromuscular junction (NMJ) is a well-known model system and is often used to study synapse development. Here, we show synaptic degeneration at NMJ boutons, primarily based on transmission electron microscopy (TEM) studies.
Gan Guangming   +10 more
doaj   +1 more source

The synaptic vesicle proteome [PDF]

open access: yesJournal of Neurochemistry, 2007
AbstractSynaptic vesicles are key organelles in neurotransmission. Vesicle integral or membrane‐associated proteins mediate the various functions the organelle fulfills during its life cycle. These include organelle transport, interaction with the nerve terminal cytoskeleton, uptake and storage of low molecular weight constituents, and the regulated ...
Jacqueline, Burré, Walter, Volknandt
openaire   +2 more sources

In vitro fusion of single synaptic and dense core vesicles reproduces key physiological properties

open access: yesNature Communications, 2019
Regulated exocytosis of neuronal synaptic vesicles is substantially faster than that of endocrine dense core vesicles despite similar molecular machineries.
Alex J. B. Kreutzberger   +10 more
doaj   +1 more source

Incomplete vesicular docking limits synaptic strength under high release probability conditions

open access: yeseLife, 2020
Central mammalian synapses release synaptic vesicles in dedicated structures called docking/release sites. It has been assumed that when voltage-dependent calcium entry is sufficiently large, synaptic output attains a maximum value of one synaptic ...
Gerardo Malagon   +4 more
doaj   +1 more source

Synaptic vesicle pools: an update [PDF]

open access: yesFrontiers in Synaptic Neuroscience, 2010
During the last few decades synaptic vesicles have been assigned to a variety of functional and morphological classes or "pools". We have argued in the past (Rizzoli and Betz, 2005) that synaptic activity in several preparations is accounted for by the function of three vesicle pools: the readily releasable pool (docked at active zones and ready to go ...
Denker, Annette, Rizzoli, Silvio O.
openaire   +4 more sources

Spontaneous and evoked synaptic vesicle release arises from a single releasable pool

open access: yesCell Reports
Summary: The quantal content of an evoked postsynaptic response is typically determined by dividing it by the average spontaneous miniature response. However, this approach is challenged by the notion that different synaptic vesicle pools might drive ...
Junxiu Duan   +3 more
doaj   +1 more source

APP is cleaved by Bace1 in pre-synaptic vesicles and establishes a pre-synaptic interactome, via its intracellular domain, with molecular complexes that regulate pre-synaptic vesicles functions.

open access: yesPLoS ONE, 2014
Amyloid Precursor Protein (APP) is a type I membrane protein that undergoes extensive processing by secretases, including BACE1. Although mutations in APP and genes that regulate processing of APP, such as PSENs and BRI2/ITM2B, cause dementias, the ...
Dolores Del Prete   +4 more
doaj   +1 more source

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