Results 41 to 50 of about 10,942,539 (365)

Neuromodulation of Chemical Synaptic Transmission Driven by THz Photons

open access: yesResearch, 2022
Postsynaptic currents of chemical synapse are modulated by multitudinous neurotransmitters, such as acetylcholine, dopamine, glutamate, and γ-aminobutyric acid, many of which have been used in the treatment of neurological diseases.
Xiaoxuan Tan   +3 more
doaj   +1 more source

Human synapses show a wide temporal window for spike-timing-dependent plasticity

open access: yesFrontiers in Synaptic Neuroscience, 2010
Throughout our lifetime, activity-dependent changes in neuronal connection strength enable the brain to refine neural circuits and learn based on experience.
Guilherme T Silva   +7 more
doaj   +1 more source

Rethinking the Role of Normalization and Residual Blocks for Spiking Neural Networks

open access: yesSensors, 2022
Biologically inspired spiking neural networks (SNNs) are widely used to realize ultralow-power energy consumption. However, deep SNNs are not easy to train due to the excessive firing of spiking neurons in the hidden layers.
Shin-ichi Ikegawa   +3 more
doaj   +1 more source

Synaptic plasticity and cognitive function are disrupted in the absence of Lrp4. [PDF]

open access: yes, 2014
Lrp4, the muscle receptor for neuronal Agrin, is expressed in the hippocampus and areas involved in cognition. The function of Lrp4 in the brain, however, is unknown, as Lrp4-/- mice fail to form neuromuscular synapses and die at birth.
Burden, Steven J   +2 more
core   +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

Neurexins play a crucial role in cerebellar granule cell survival by organizing autocrine machinery for neurotrophins

open access: yesCell Reports, 2022
Summary: Neurexins (NRXNs) are key presynaptic cell adhesion molecules that regulate synapse formation and function via trans-synaptic interaction with postsynaptic ligands.
Takeshi Uemura   +13 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

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

Effects of guanidine on synaptic transmission in the spinal cord of the frog [PDF]

open access: yes, 1977
The effects of guanidine on motoneurons of the isolated frog spinal cord were studied by adding the drug to the solution bathing the cord during intracellular recording. Guanidine (5·10–4 M) did not alter the membrane potential of motoneurons.
A. K�hner   +19 more
core   +1 more source

Molecular investigation of ergot alkaloid ergotamine's modulatory effects on glycine receptors expressed in Xenopus oocytes

open access: yesComputational and Structural Biotechnology Journal
The relationship between oxidative stress and glycine receptors is complex, involving multiple mechanisms through which reactive oxygen species can modify glycine receptor function. Understanding these interactions is essential for developing therapeutic
Sanung Eom   +9 more
doaj   +1 more source

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