Results 131 to 140 of about 29,387 (258)

The neuromodulatory fragility hypothesis of Alzheimer's disease pathogenesis

open access: yesAlzheimer's &Dementia, Volume 22, Issue 3, March 2026.
Abstract Sporadic Alzheimer's disease (AD) is associated with numerous risk factors, yet its precise cause remains unclear. Here, we describe a novel framework for AD pathogenesis, whereby diverse risk factors converge on neuromodulatory subcortical systems to confer AD risk or resilience.
Alfie Wearn   +4 more
wiley   +1 more source

Orexin/Hypocretin Signaling

open access: yes, 2016
Orexin/hypocretin peptide (orexin-A and orexin-B) signaling is believed to take place via the two G-protein-coupled receptors (GPCRs), named OX1 and OX2 orexin receptors, as described in the previous chapters. Signaling of orexin peptides has been investigated in diverse endogenously orexin receptor-expressing cells - mainly neurons but also other ...
openaire   +2 more sources

Sex differences in neuromodulatory subcortical systems and their implications for Alzheimer's disease

open access: yesAlzheimer's &Dementia, Volume 22, Issue 3, March 2026.
Abstract Neuromodulatory subcortical systems (NSSs) are uniquely susceptible to dementia‐related pathology, leading to frequent molecular and behavioral impairments associated with altered function of these nuclei. Some of these systems display clear sex‐specific cytoarchitecture and signaling leading to distinct physiology and behavioral outputs in ...
Rosaria J. Rae   +53 more
wiley   +1 more source

Wake‐promoting neuromodulators in Alzheimer's disease: Implications for sleep and brain clearance

open access: yesAlzheimer's &Dementia, Volume 22, Issue 3, March 2026.
Abstract Neuromodulatory subcortical systems (NSS) regulate arousal, cognition, and sleep–wake transitions through widespread influence on cortical and subcortical networks. Increasing evidence links dysfunction of these systems to the pathogenesis of Alzheimer's disease (AD). Degeneration and dysregulation of NSS occurs during the preclinical phase of
Taylor J. Pedersen   +7 more
wiley   +1 more source

Glymphatic System Dysfunction in Central Nervous System Diseases

open access: yesCNS Neuroscience &Therapeutics, Volume 32, Issue 3, March 2026.
Glymphatic Dysfunction in Neurological Disorders: The glymphatic system is a brain‐wide clearance system that removes neurotoxic waste via AQP4‐mediated CSF‐ISF exchange. Dysfunction through AQP4 mislocalization, BBB injury, and inflammation annihilates clearance and causes acute (stroke, TBI) and chronic disease.
Anwar Zahran   +14 more
wiley   +1 more source

Relationship Between Cognitive Impairments and Serum Orexin Levels in Epilepsy Patients

open access: yesArchives of Epilepsy
Objective: Recent studies on neurodegenerative diseases have indicated that Orexin A plays a role in cognitive impairment. Furthermore, animal studies have demonstrated that Orexin A enhances synaptic plasticity in the hippocampus.
Zeliha Yücel   +4 more
doaj   +1 more source

Insomnia‐Driven Hippocampal Atrophy: Evidence From Bidirectional Mendelian Randomization

open access: yesHealth Science Reports, Volume 9, Issue 3, March 2026.
ABSTRACT Background Observational studies link insomnia to hippocampal atrophy, yet causal inference remains limited by confounding and reverse causality. While Mendelian randomization (MR) studies have explored sleep‐brain associations, bidirectional causality between insomnia and hippocampal subfield volumes remains unaddressed.
Dandan Han   +9 more
wiley   +1 more source

MicroRNAs in Methamphetamine: Addiction, Neurotoxicity, and Therapeutic Potential

open access: yesMedComm – Future Medicine, Volume 5, Issue 1, March 2026.
The use of METH leads to the release of dopamine from the affected brain regions, including the nucleus accumbens (NAc), ventral tegmental area (VTA), prefrontal cortex (PFC), hippocampus (Hip), and striatum. This triggers signals that alter miRNA expression, which in turn leads to differential expression of target genes.
Yacoubou Abdoul Razak Mahaman   +7 more
wiley   +1 more source

Evaluating and Determining the Effects of Psychotropic Drugs on Motor Vehicle Driving Performance: Key Considerations of the Japanese Guideline and Criteria for Clinical Implementation of Evidence

open access: yesNeuropsychopharmacology Reports, Volume 46, Issue 1, March 2026.
The Japanese guideline and criteria for evaluating and determining the effects of psychotropic drugs on motor vehicle driving performance enable the clinical implementation of evidence by assessing “persistence of clinically meaningful impairment”. ABSTRACT The cross‐national differences in automobile driving precautions stated in psychotropic drug ...
Tetsuo Nakabayashi   +9 more
wiley   +1 more source

Exploring Sleep, Energy Balance, and Weight Loss Maintenance After Bariatric Surgery in Adult Females: A Cross‐Sectional Study

open access: yesObesity, Volume 34, Issue 3, Page 662-673, March 2026.
ABSTRACT Objective This cross‐sectional study examined associations between sleep, body weight, body composition, appetite, and food reward after bariatric surgery. Methods A single 7‐day study period in 22 female adults (age, 53.5 ± 9.3 years; BMI, 35.5 ± 8.5 kg/m2; body fat: 44.9% ± 8.6%) who underwent bariatric surgery ≥ 1 year prior to enrollment ...
Hannah R. Koch   +5 more
wiley   +1 more source

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