Results 61 to 70 of about 41,716 (223)

Reduced ictogenic potential of 4-aminopyridine in the perirhinal and entorhinal cortex of kainate-treated chronic epileptic rats

open access: yesNeurobiology of Disease, 2008
We investigated the potential of 4-AP (50–100 μM) to induce seizure-like events (SLEs) in combined entorhinal cortex–hippocampal slices from Sprague Dawley rats which developed spontaneous limbic seizures following kainic acid induced status epilepticus.
Robert K. Zahn   +5 more
doaj   +1 more source

Effect of reward on electrophysiological signatures of grid cell population activity in human spatial navigation

open access: yesScientific Reports, 2021
The regular equilateral triangular periodic firing pattern of grid cells in the entorhinal cortex is considered a regular metric for the spatial world, and the grid-like representation correlates with hexadirectional modulation of theta (4–8 Hz) power in
Wenjing Wang, Wenxu Wang
doaj   +1 more source

Artificial intelligence in preclinical epilepsy research: Current state, potential, and challenges

open access: yesEpilepsia Open, EarlyView.
Abstract Preclinical translational epilepsy research uses animal models to better understand the mechanisms underlying epilepsy and its comorbidities, as well as to analyze and develop potential treatments that may mitigate this neurological disorder and its associated conditions. Artificial intelligence (AI) has emerged as a transformative tool across
Jesús Servando Medel‐Matus   +7 more
wiley   +1 more source

Status epilepticus: Updates on mechanisms and treatments

open access: yesEpilepsia Open, EarlyView.
Abstract Status epilepticus (SE) consists of prolonged, self‐sustaining seizures and is a common neurological emergency that causes respiratory compromise and neuronal injury. Without prompt treatment, the seizures can become resistant to benzodiazepines, leading to the progressive evolution of established, refractory, and super‐refractory SE.
Suchitra Joshi, Jaideep Kapur
wiley   +1 more source

The medial entorhinal cortex keeps Up

open access: yesNature Neuroscience, 2012
A study reveals that medial entorhinal cortex layer III spiking dynamics shape the neocortical-hippocampal dialog during Up-Down state fluctuations in slow-wave sleep that may contribute to memory consolidation.
Dupret, D, Csicsvari, J
openaire   +1 more source

Bidirectional Pathological Axis Between Alzheimer's Disease and Circadian Rhythm Disturbance: Mechanisms and Therapeutic Strategies

open access: yesiNew Medicine, EarlyView.
This graphical abstract illustrates a bidirectional vicious cycle between Alzheimer’s disease (AD) and circadian rhythm disturbance (CRD). On the one hand, AD pathology, including amyloid‐β (Aβ) plaque deposition and tau hyperphosphorylation, may damage the suprachiasmatic nucleus (SCN) and disrupt melatonin signaling, leading to sleep fragmentation ...
Jiajia Qin   +10 more
wiley   +1 more source

A mouse model of early sporadic tau pathology induces neurogenic plasticity in the hippocampus.

open access: yesPLoS ONE
Alzheimer's disease varies by sex but is broadly characterized by widespread neurodegeneration and the accumulation of insoluble amyloid plaques and neurofibrillary tangles.
Alyssa M Ash   +7 more
doaj   +1 more source

Shared rhythmic subcortical GABAergic input to the entorhinal cortex and presubiculum

open access: yeseLife, 2018
Rhythmic theta frequency (~5–12 Hz) oscillations coordinate neuronal synchrony and higher frequency oscillations across the cortex. Spatial navigation and context-dependent episodic memories are represented in several interconnected regions including the
Tim James Viney   +5 more
doaj   +1 more source

Analysis of individualized brain–gut association networks and transcriptional patterns in major depressive disorder

open access: yesInterdisciplinary Medicine, EarlyView.
Individualized brain–gut association networks suggest potential neuropathological mechanisms in MDD and MDDSI. Multilevel brain–gut association changes involving HSV‐1 and inflammation may be relevant to MDD, whereas alterations related to insulin metabolism may play a potential role in the neuropathological mechanisms of MDDSI.
Wei Wang   +10 more
wiley   +1 more source

Convergent Projections from Perirhinal and Postrhinal Cortices Suggest a Multisensory Nature of Lateral, but Not Medial, Entorhinal Cortex

open access: yesCell Reports, 2019
Summary: The current model of the organization of the medial temporal lobe (MTL) episodic memory system assumes that two functionally different “where” and “what” pathways enter MTL as parallel parahippocampal cortex (PHC)-medial entorhinal cortex (MEC ...
Thanh P. Doan   +4 more
doaj   +1 more source

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