Results 31 to 40 of about 74,511 (302)

Determining the neurotransmitter concentration profile at active synapses [PDF]

open access: yes, 2009
Establishing the temporal and concentration profiles of neurotransmitters during synaptic release is an essential step towards understanding the basic properties of inter-neuronal communication in the central nervous system.
Beato, M.   +3 more
core   +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

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

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

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

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

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

Long-Term Temporal Dynamics of Synaptic Vesicles [PDF]

open access: yes, 2016
Neurotransmission requires the release of neurotransmitters from synaptic vesicles. This occurs via fusion of the vesicle to the pre-synaptic membrane upon stimulation.
Truckenbrodt, Sven
core   +1 more source

Binding of Rab3A to Synaptic Vesicles [PDF]

open access: yesJournal of Biological Chemistry, 2000
Prenylated Rab GTPases cycle between membrane-bound and soluble forms. Membrane-bound GDP-Rabs interact with GDP dissociation inhibitor (GDI), resulting in the dissociation of a Rab.GDI complex, which in turn serves as a precursor for the membrane re-association of Rabs. We have now characterized the binding of Rab3A to synaptic vesicles in vitro using
Chou, J., Jahn, R.
openaire   +3 more sources

Effects of synaptic vesicles on actin polymerization

open access: yes, 1996
We have analyzed the effects of synaptic vesicles on actin polymerization by using a time-resolved spectrofluorometric assay. We have found that synaptic vesicles have complex effects on the kinetics of actin polymerization, which vary depending on ...
Benfenati, F   +3 more
core   +2 more sources

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