Results 61 to 70 of about 139,984 (307)

The impact of ageing reveals distinct roles for human dentate gyrus and CA3 in pattern separation and object recognition memory

open access: yesScientific Reports, 2017
Both recognition of familiar objects and pattern separation, a process that orthogonalises overlapping events, are critical for effective memory. Evidence is emerging that human pattern separation requires dentate gyrus.
Serena Dillon   +9 more
semanticscholar   +1 more source

Phospholipid Remodeling and Tri‐Layer Membrane Reconstruction Mediate Cognitive Effects of Humanized Milk Fat Globules in Neonatal Rats

open access: yesAdvanced Science, EarlyView.
Humanized milk fat globules (MFG) mimic the native composition and structure of human milk, achieved through remodeling of milk fat globule membrane phospholipid composition and reconstruction of the tri‐layer membrane structure. These humanized MFG exhibit improved structural stability and digestibility, and enhance neurodevelopment in formula‐fed rat
Shaolei Wang   +8 more
wiley   +1 more source

Physical Activity Ameliorates Impaired Hippocampal Neurogenesis in the Tg4-42 Mouse Model of Alzheimer’s Disease

open access: yesASN Neuro, 2019
There is growing evidence from epidemiological studies that especially midlife physical activity might exert a positive influence on the risk and progression of Alzheimer’s disease.
Anna-Lina Gerberding   +4 more
doaj   +1 more source

Status Epilepticus Induced Spontaneous Dentate Gyrus Spikes: In Vivo Current Source Density Analysis. [PDF]

open access: yesPLoS ONE, 2015
The dentate gyrus is considered to function as an inhibitory gate limiting excitatory input to the hippocampus. Following status epilepticus (SE), this gating function is reduced and granule cells become hyper-excitable.
Sean P Flynn   +4 more
doaj   +1 more source

Rapid erasure of hippocampal memory following inhibition of dentate gyrus granule cells

open access: yesNature Communications, 2016
The hippocampus is critical for the acquisition and retrieval of episodic and contextual memories. Lesions of the dentate gyrus, a principal input of the hippocampus, block memory acquisition, but it remains unclear whether this region also plays a role ...
N. Madroñal   +11 more
semanticscholar   +1 more source

Oral Exposure to Food‐Grade Nanoparticles Poses a Risk of Alzheimer's Disease‐Like Symptoms by Triggering Autophagy Defects in Neurons

open access: yesAdvanced Science, EarlyView.
Three food‐grade nanomaterials induce dysregulated RyR‐Ca2+ signaling through epigenetic modifications. This dysregulation impairs the autophagic clearance process, ultimately leading to abnormal Aβ deposition and increase phosphorylated tau levels.
Jiaxin Shang   +7 more
wiley   +1 more source

TULP4, a novel E3 ligase gene, participates in neuronal migration as a candidate in schizophrenia

open access: yesCNS Neuroscience &Therapeutics, EarlyView., 2023
Mutations identified from four SCZ pedigrees resulted in decreased TULP4 expression. Tulp4 knockdown caused delayed neuron migration in embryonic mice, and impaired cognition and prepulse inhibition in adult mice. These phenotypes may be related to TULP4 through its involvement in the formation of a novel E3 ubiquitin ligases.
Yan Bi   +19 more
wiley   +1 more source

Modulatory effects of nitric oxide-active drugs on the anticonvulsant activity of lamotrigine in an experimental model of partial complex epilepsy in the rat

open access: yesBMC Neuroscience, 2007
Background The effects induced by administering the anticonvulsant lamotrigine, the preferential inhibitor of neuronal nitric oxide synthase 7-nitroindazole and the precursor of NO synthesis L-arginine, alone or in combination, on an experimental model ...
Ferraro Giuseppe, Sardo Pierangelo
doaj   +1 more source

Multimodal Imaging Reveals Cerebral Microcirculation Dynamics and Mechanisms in Mouse Central Nervous System After Intranasal Infection With Recombinant Pseudorabies Virus

open access: yesAdvanced Science, EarlyView.
Multi‐modality imaging strategy applied to PRV‐induced central nervous system infection enables dynamic visualization of cerebrovascular dysfunction, including hyperemia, hypoperfusion, and vascular remodeling. These changes are linked to microglial activation and impaired angiogenesis, providing mechanistic insight into PRV neuropathogenesis and ...
Shuting Ling   +13 more
wiley   +1 more source

HIPP neurons in the dentate gyrus mediate the cholinergic modulation of background context memory salience

open access: yesNature Communications, 2017
Cholinergic neuromodulation in the hippocampus controls the salience of background context memory acquired in the presence of elemental stimuli predicting an aversive reinforcement. With pharmacogenetic inhibition we here demonstrate that hilar perforant
S. A. Raza   +12 more
semanticscholar   +1 more source

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