Results 111 to 120 of about 10,435,031 (361)

Synaptic cell-adhesion molecule latrophilin-2 is differentially directed to dendritic domains of hippocampal neurons

open access: yesiScience
Summary: Hippocampal pyramidal cells possess elaborate dendritic arbors with distinct domains that are targeted with input-specific synaptic sites. This synaptic arrangement is facilitated by synaptic cell-adhesion molecules that act as recognition ...
Thomas R. Murphy   +4 more
doaj   +1 more source

Resonant spike propagation in coupled neurons with subthreshold activity

open access: yes, 2008
Màster en Biofísica, curs 2006-2007Chemical coupling between neurons is only active when the presynaptic neuron is firing, and thus it does not allow for the propagation of subthreshold activity.
Sancristóbal Alonso, Belén
core  

Parvalbumin Interneuron‐Dependent Hippocampal Neurogenesis Evoked by Prolonged Rhythmic Light Flicker

open access: yesAdvanced Science, EarlyView.
This study demonstrates that prolonged rhythmic 40 Hz light flicker enhances spatial learning by stimulating PV interneuron‐dependent neurogenesis. The light flicker selectively activates PV interneurons, which enhances GABAergic support for the integration of immature neurons in the adult dentate gyrus.
Hai Yan   +16 more
wiley   +1 more source

Effects of Ketamine on Neuronal Spontaneous Excitatory Postsynaptic Currents and Miniature Excitatory Postsynaptic Currents in the Somatosensory Cortex of Rats

open access: yesIranian Journal of Medical Sciences, 2016
Background: Ketamine is a commonly used intravenous anesthetic which produces dissociation anesthesia, analgesia, and amnesia. The mechanism of ketamine-induced synaptic inhibition in high-level cortical areas is still unknown.
Chengdong Yuan   +6 more
doaj  

Corticosterone Contributes to Context‐Triggered Retrieval of Morphine Withdrawal Memories by Acting on Basolateral Amygdala Neurons Projecting to Nucleus Accumbens Core

open access: yesAdvanced Science, EarlyView.
Context associated with morphine withdrawal elicits an increase in serum corticosterone levels. Corticosterone participates in CTR‐MWM by acting on MR, but not GR, in the BLA. MR in BLA→NAcC neurons mediates CTR‐MWM. MR increases presynaptic glutamate release and meanwhile participates in D1 receptor‐induced increases in presynaptic glutamate release ...
Zixuan Cao   +15 more
wiley   +1 more source

Meta-Potentiation: Neuro-Astroglial Interactions Supporting Perceptual Consciousness [PDF]

open access: yes, 2007
Conscious perceptual processing involves the sequential activation of cortical networks at several brain locations, and the onset of oscillatory synchrony affecting the same neuronal population.
Alfredo Pereira Jr, Fá
core   +2 more sources

Color‐Filter‐Free Image Sensor Using CsPbBr3 Quantum‐Dot‐Based Tamm Plasmon Photodetector for Photonic Synapse Facial Recognition

open access: yesAdvanced Science, EarlyView.
A cutting‐edge color‐filter‐free photodetector that seamlessly integrates a monolayer perovskite quantum dots absorber by leveraging Tamm plasmon resonance enhances optical absorption through strong light–matter coupling and demonstrates synaptic‐like dynamics, enabling neuron‐inspired facial recognition.
Meng‐Cheng Yen   +11 more
wiley   +1 more source

Highly Nonrandom Features of Synaptic Connectivity in Local Cortical Circuits

open access: yesPLoS Biology, 2005
How different is local cortical circuitry from a random network? To answer this question, we probed synaptic connections with several hundred simultaneous quadruple whole-cell recordings from layer 5 pyramidal neurons in the rat visual cortex.
Sen Song   +4 more
semanticscholar   +1 more source

Aberrant Mitochondrial Metabolism in Alzheimer's Disease Links Energy Stress with Ferroptosis

open access: yesAdvanced Science, EarlyView.
Alves et al. reveal how energy loss and oxidative stress, two major features of Alzheimer's disease, are connected. Mitochondria controls the flux of the antioxidant glutathione (GSH), via facilitating both its production and consumption. Energy restriction limits GSH synthesis, conferring vulnerability to cell death by ferroptosis, implicated as a ...
Francesca Alves   +17 more
wiley   +1 more source

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