Results 151 to 160 of about 411,191 (267)

Refined Division of Sleep Stages in the Mouse Based on Distributed Deep Electrodes and Underlying Infra‐Slow Oscillation

open access: yesJournal of Sleep Research, Volume 35, Issue 4, August 2026.
ABSTRACT The mouse sleep is mostly recorded with only epidural electrodes and divided simply into NREM and REM stages. With the help of distributed intracerebral triplet electrodes, we searched for possible new electrophysiological signatures to characterise more specific sleep substages within the timeframe of seconds to tens of minutes.
Nanxiang Jin   +8 more
wiley   +1 more source

Unravelling the Significance of Cystatin C and Bunina Bodies in Amyotrophic Lateral Sclerosis Pathogenesis

open access: yesNeuropathology and Applied Neurobiology, Volume 52, Issue 4, August 2026.
ABSTRACT Amyotrophic lateral sclerosis (ALS), also known as motor neuron disease (MND), is a fatal neurodegenerative disease primarily affecting motor neurons. Two key protein inclusions found in lower motor neurons serve as neuropathological hallmarks of the disease in human tissue: the TDP43‐positive inclusion and the cystatin C‐positive Bunina body.
Sarah M. Granger   +5 more
wiley   +1 more source

Pharmacology, Medicinal Chemistry, and Therapeutic Potential of Imidazoline Receptor Ligands

open access: yesChemMedChem, Volume 21, Issue 13, 14 July 2026.
Building on the excellent review article by Dardonville and Rozas (2004), this paper summarizes the most representative ligands of imidazoline receptors (IR; I1, I2, and I3) and updates their pharmacological profiles. Although not exhaustive, it provides a solid starting point for understanding the significance of I2 IRs as promising therapeutic ...
Maria‐Eleni Kouridaki   +2 more
wiley   +1 more source

Chronic stress impairs autoinhibition in neurons of the locus coeruleus to increase asparagine endopeptidase activity

open access: yeseLife
Impairments of locus coeruleus (LC) are implicated in anxiety/depression and Alzheimer’s disease (AD). Increases in cytosolic noradrenaline (NA) concentration and monoamine oxidase A (MAO-A) activity initiate the LC impairment through production of NA ...
Hiroki Toyoda   +6 more
doaj   +1 more source

Partial or Complete Loss of Norepinephrine Differentially Alters Contextual Fear and Catecholamine Release Dynamics in Hippocampal CA1

open access: yesBiological Psychiatry Global Open Science
Background: Contextual fear learning is heavily dependent on the hippocampus. Despite evidence that catecholamines contribute to contextual encoding and memory retrieval, the precise temporal dynamics of their release in the hippocampus during behavior ...
Leslie R. Wilson   +13 more
doaj   +1 more source

Regional locus coeruleus degeneration is uncoupled from noradrenergic terminal loss in Parkinson’s disease [PDF]

open access: yes
Previous studies have reported substantial involvement of the noradrenergic system in Parkinson’s disease. Neuromelanin-sensitive MRI sequences and PET tracers have become available to visualize the cell bodies in the locus coeruleus and the density of ...
Borghammer P   +16 more
core  

Social activity mediates locus coeruleus tangle-related cognition in older adults [PDF]

open access: yes
The locus coeruleus-noradrenaline system regulates brain-wide neural activity involved in cognition and behavior. Integrity of this subcortical neuromodulatory system is proposed to be a substrate of cognitive reserve that may be strengthened by lifetime
Zide, Benjamin S   +5 more
core   +1 more source

Propofol regulates arousal by enhancing inhibitory synaptic transmission of noradrenergic neurons in the locus coeruleus of adult male mice

open access: yesScientific Reports
Locus coeruleus-noradrenergic (LC-NA) neurons have been suggested to be involved in the effects of general anesthetics. However, the contribution of LC-NA neurons during propofol anesthesia remains unknown.
Tatsuya Abe   +7 more
doaj   +1 more source

Locus coeruleus

open access: yesScholarpedia, 2010
Sébastien Bouret, Susan Sara
openaire   +1 more source

Lower Locus Coeruleus Integrity Signals Elevated Entorhinal Tau and Clinical Progression in Asymptomatic Older Individuals [PDF]

open access: yes
Objective: Elevated entorhinal cortex (EC) tau in low beta-amyloid individuals can predict accumulation of pathology and cognitive decline. We compared the accuracy of magnetic resonance imaging (MRI)-derived locus coeruleus integrity, neocortical beta ...
Jacobs, Heidi I. L.   +13 more
core   +1 more source

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