Results 121 to 130 of about 63,053 (291)

Senescent Microglia Mediate Neuroinflammation‐Induced Cognitive Dysfunction by Selective Elimination of Excitatory Synapses in the Hippocampal CA1

open access: yesAging Cell, EarlyView.
In the CA1, microglia are activated to be responsible for synaptic pruning. However, LPS induces a senescent phenotype in microglia, characterized by the elevated levels of p16, as well as the production of SASPs. These senescent microglia mediate the removal of excitatory synapses selectively, resulting in dendritic spine loss and LTP impairment ...
Kai Liu   +8 more
wiley   +1 more source

Impaired long-term potentiation induction in dentate gyrus of calretinin-deficient mice [PDF]

open access: green, 1997
Stéphane Schurmans   +9 more
openalex   +1 more source

Oxytocin Enhances Demethylation Through TET Enzyme Expression in Neurons of Aged Mice: Oxytocin as a Potential Antiaging Peptide

open access: yesAging Cell, EarlyView.
DNA methylation, mitochondrial dysfunction, inflammation, and senescence interact to form a vicious cycle. Here we report that oxytocin interrupts this vicious cycle by increasing TET2 expression, inducing DNA demethylation in aged neurons and raising plasma oxytocin levels, decreasing systemic inflammation.
Yuko Maejima   +8 more
wiley   +1 more source

Synthetic microneurotrophins: Neurotrophin receptors for therapeutics of neurodegenerative diseases

open access: yesBritish Journal of Pharmacology, EarlyView.
Neurodegenerative disorders are characterised by the chronic progressive degeneration of specific neuronal subtypes, neuroinflammation, myelin damage and synaptic loss. Despite their growing incidence, advancements in effective treatments remain limited, because of lack of knowledge for the aetiology of the diverse pathophysiology to design systematic ...
Ioanna Zota   +4 more
wiley   +1 more source

Dysregulation of Rho‐Associated Coiled‐Coil Protein Kinase1 Depletes Neural Stem Cell Pool and Impairs Hippocampal Neurogenesis After Traumatic Brain Injury

open access: yesCell Proliferation, EarlyView.
Following TBI, hippocampal neurogenesis in mice is impaired and affects cognitive function. This impairment is associated with the upregulation of p‐AKT/AKT mediated by ROCK1. ABSTRACT Traumatic brain injury (TBI) represents a global health burden, often resulting in persistent neurological deficits due to impaired hippocampal neurogenesis ...
Chaoqun Yao   +15 more
wiley   +1 more source

Preferential superficial cortical layer activation during seizure propagation

open access: yesEpilepsia, Volume 66, Issue 3, Page 929-941, March 2025.
Abstract Objective Focal cortical seizures travel long distances from the onset zone, but the long‐distance propagation pathways are uncertain. In vitro and in vivo imaging techniques have investigated the local spread of seizures but did not elucidate long‐distance spread. Furthermore, classical studies in slices suggested seizure spread locally along
Anastasia Brodovskaya   +4 more
wiley   +1 more source

Fast activity chirp patterns in focal seizures from patients and animal models

open access: yesEpilepsia, Volume 66, Issue 3, Page 621-631, March 2025.
Abstract Time–frequency analysis of focal seizure electroencephalographic signals performed with depth electrodes in human temporal lobe structures has revealed the occurrence at onset of oscillations at approximately 30–100 Hz that feature a monotonic rapid decay in frequency content.
Maxime Lévesque   +6 more
wiley   +1 more source

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