Results 41 to 50 of about 10,304,482 (352)

Increased ribosomal protein levels and protein synthesis in the striatal synaptosome of Shank3-overexpressing transgenic mice

open access: yesMolecular Brain, 2021
The SH3 and multiple ankyrin repeat domains 3 (Shank3) protein is a core organizer of the macromolecular complex in excitatory postsynapses, and its defects cause numerous synaptopathies, including autism spectrum disorders.
Chunmei Jin   +13 more
doaj   +1 more source

Preparation of Pre- and Post-synaptic Density Fraction from Mouse Cortex

open access: yesBio-Protocol, 2013
The understanding of the organization of postsynaptic signaling systems at excitatory synapses has been aided by the identification of proteins in the postsynaptic density (PSD) fraction, a subcellular fraction enriched in structures with the morphology ...
Chengyong Shen, Yong-Jun Chen
doaj   +1 more source

A Novel Optical Quantal Analysis of Miniature Events Reveals Enhanced Frequency Following Amyloid β Exposure

open access: yesFrontiers in Cellular Neuroscience, 2020
Non-evoked miniature release of neurotransmitters is increasingly recognized as playing an important role in neural function and is implicated in synaptic plasticity, metaplasticity, and homeostasis.
Henry B. C. Taylor   +4 more
doaj   +1 more source

Random Walks for Spike-Timing Dependent Plasticity [PDF]

open access: yes, 2003
Random walk methods are used to calculate the moments of negative image equilibrium distributions in synaptic weight dynamics governed by spike-timing dependent plasticity (STDP). The neural architecture of the model is based on the electrosensory lateral line lobe (ELL) of mormyrid electric fish, which forms a negative image of the reafferent signal ...
arxiv   +1 more source

Targeting the post-synaptic proteome has therapeutic potential for psychosis in Alzheimer Disease

open access: yesCommunications Biology, 2023
Individuals with Alzheimer Disease who develop psychotic symptoms (AD + P) experience more rapid cognitive decline and have reduced indices of synaptic integrity relative to those without psychosis (AD-P).
J. M. Krivinko   +9 more
doaj   +1 more source

Network algorithmics and the emergence of the cortical synaptic-weight distribution [PDF]

open access: yesPhysical Review E 81 (2010), 021916, 2009
When a neuron fires and the resulting action potential travels down its axon toward other neurons' dendrites, the effect on each of those neurons is mediated by the weight of the synapse that separates it from the firing neuron. This weight, in turn, is affected by the postsynaptic neuron's response through a mechanism that is thought to underlie ...
arxiv   +1 more source

Nitric oxide signalling modulates synaptic inhibition in the superior paraolivary nucleus (SPN) via cGMP-dependent suppression of KCC2

open access: yesFrontiers in Neural Circuits, 2014
Glycinergic inhibition plays a central role in the auditory brainstem circuitries involved in sound localization and in the encoding of temporal action potential firing patterns.
Lina eYassin   +6 more
doaj   +1 more source

Feed-forward recruitment of electrical synapses enhances synchronous spiking in the mouse cerebellar cortex

open access: yeseLife, 2020
In the cerebellar cortex, molecular layer interneurons use chemical and electrical synapses to form subnetworks that fine-tune the spiking output of the cerebellum.
Andreas Hoehne   +2 more
doaj   +1 more source

Cortical Excitability Before and After Long‐Term Perampanel Treatment for Epilepsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Antiseizure medications (ASMs), which may influence cortical excitability, are the mainstay of epilepsy treatment. Transcranial magnetic stimulation (TMS) helps evaluate cortical excitability. We assessed changes in TMS responses using serial TMS measurements in people treated with an adjunctive noncompetitive AMPA‐receptor ...
Robert M. Helling   +6 more
wiley   +1 more source

Postsynaptic neuronal activity promotes regeneration of retinal axons

open access: yesCell Reports, 2023
Summary: The wiring of visual circuits requires that retinal neurons functionally connect to specific brain targets, a process that involves activity-dependent signaling between retinal axons and their postsynaptic targets.
Supraja G. Varadarajan   +5 more
doaj  

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