Results 61 to 70 of about 12,399 (169)

Memantine prevents acute stress‐induced memory deficits by reversing sex‐dependent pathophysiological glutamatergic alterations in the dorsal hippocampus

open access: yesBritish Journal of Pharmacology, Volume 183, Issue 16, Page 4939-4952, August 2026.
Abstract Background and Purpose The neural mechanisms underlying effects of acute stress on memory are poorly understood. We demonstrated previously that acute stress produces identical spatial memory deficits in male and female mice but through distinct molecular mechanisms, with females exhibiting up‐regulation of N‐methyl‐D‐aspartate (NMDA) receptor
Sebastiano A. Torrisi   +13 more
wiley   +1 more source

Extrasynaptic localization of GABA in the developing mouse cerebellum [PDF]

open access: yesNeuroscience Research, 2004
In the adult brain, gamma-amino butyric acid (GABA) is synaptically released and mediates inhibitory transmission. Recent studies have revealed that GABA is a trophic factor for brain development. To reveal the distribution of GABA and its secretion mechanisms during brain development, we investigated the immunohistochemical localization of two ...
Takayama, Chitoshi, Inoue, Yoshiro
openaire   +3 more sources

Nanoscale Spatial Organization of ARC High‐ and Low‐Order Assemblies at Excitatory Synapses

open access: yesAdvanced Science, Volume 13, Issue 37, 3 July 2026.
ARC (Activity‐Regulated Cytoskeleton‐Associated protein) mediates synaptic plasticity by forming nanoscale assemblies in neurons. Using super‐resolution microscopy and time‐resolved anisotropy with targeted tagging, the study reveals low‐order ARC assemblies at synapses colocalizing with AMPARs, semi‐circular structures at endocytic zones, and 60–80 nm
Martina Damenti   +13 more
wiley   +1 more source

The Contribution of Extrasynaptic Signaling to Cerebellar Information Processing [PDF]

open access: yesThe Cerebellum, 2014
The diversity of synapses within the simple modular structure of the cerebellum has been crucial for study of the phasic extrasynaptic signaling by fast neurotransmitters collectively referred to as "spillover." Additionally, the accessibility of cerebellar components for in vivo recordings and their recruitment by simple behaviors or sensory stimuli ...
Luke T, Coddington   +2 more
openaire   +2 more sources

A microRNA signature of toxic extrasynaptic N-methyl-D-aspartate (NMDA) receptor signaling

open access: yesMolecular Brain, 2020
The cellular consequences of N-Methyl-D-Aspartate receptor (NMDAR) stimulation depend on the receptors’ subcellular localization. Synaptic NMDARs promote plasticity and survival whereas extrasynaptic NMDARs mediate excitotoxicity and contribute to cell ...
Carlos Bas-Orth   +4 more
doaj   +1 more source

Extrasynaptic GABA(A) receptors and tonic inhibition in rat auditory thalamus. [PDF]

open access: yesPLoS ONE, 2011
Neural inhibition plays an important role in auditory processing and attentional gating. Extrasynaptic GABA(A) receptors (GABA(A)R), containing α(4)and δ GABA(A)R subunits, are thought to be activated by GABA spillover outside of the synapse following ...
Ben D Richardson   +3 more
doaj   +1 more source

Primary cilia–extracellular vesicle crosstalk in Alzheimer's disease: Emerging mechanisms and biomarker potential

open access: yesAlzheimer's &Dementia, Volume 22, Issue 7, July 2026.
Abstract Alzheimer's disease (AD) is a neurodegenerative condition marked by cognitive decline and synaptic issues. Recent studies show primary cilia (PCs), sensory organelles present on the surface of most mammalian cells, act as a critical regulators of brain homeostasis and signaling.
Vishal Singh Guleria   +1 more
wiley   +1 more source

Astrocytes and extracellular matrix in extrasynaptic volume transmission [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2014
Volume transmission is a form of intercellular communication that does not require synapses; it is based on the diffusion of neuroactive substances across the brain extracellular space (ECS) and their binding to extrasynaptic high-affinity receptors on neurons or glia.
Lýdia, Vargová, Eva, Syková
openaire   +2 more sources

Assessment of the Acute Toxicity and Anxiolytic‐Like Effect of α‐Humulene in Adult Zebrafish (Danio rerio)

open access: yesChemistry &Biodiversity, Volume 23, Issue 7, July 2026.
The monocyclic sesquiterpene α‐humulene elicited a significant anxiolytic‐like behavior in adult zebrafish and no observable acute toxicity. Pharmacological dissection suggested that this effect is independent of the benzodiazepine (BZD) binding site on the gamma‐aminobutyric acid (GABA) type A receptor (GABAAR), but it depends on the serotonin type 3 ...
Alex de Souza Borges   +9 more
wiley   +1 more source

Extrasynaptic GABAA receptors in the crosshairs of hormones and ethanol [PDF]

open access: yesNeurochemistry International, 2008
Gamma-aminobutyric acid (GABA) is the main chemical inhibitory neurotransmitter in the brain. In the central nervous system (CNS) it acts on two distinct types of receptor: an ion channel, i.e., an "ionotropic" receptor permeable to Cl- and HCO3- (GABAA receptors) and a G-protein coupled "metabotropic" receptor that is linked to various effector ...
openaire   +2 more sources

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