ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2024
Locus coeruleus integrity and neuropsychiatric symptoms in a cohort of early- and late-onset Alzheimer's disease.
Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed.
- A new hope: locus coeruleus-norepinephrine system at the nexus of neuropsychiatric symptoms.Molecular psychiatry · 2026Review
- Molecular programs in human locus coeruleus link APOE and neuromelanin to Alzheimer's vulnerability.Acta neuropathologica · 2026Article
- Pathogenic tau in the mouse locus coeruleus produces noradrenergic hyperactivity and neuropsychiatric phenotypes reminiscent of early Alzheimer's disease.Molecular psychiatry · 2026Article
- Astrocyte reactivity modifies the effects of locus coeruleus norepinephrine-related dysfunction on tau and its impact on cognition.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Locus coeruleus TDP-43 pathology in a community-based cohort: Clinical and pathological correlates.Journal of neuropathology and experimental neurology · 2026Article
- Impact of early locus coeruleus lesions in the TgF344 Alzheimer's disease rat model.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- The monoaminergic systems as drivers of Alzheimer's disease pathophysiology and symptomatology.Current opinion in neurology · 2026Review
- Neurotransmitter Systems in Alzheimer's Disease.Current issues in molecular biology · 2026Review
- Vagus nerve stimulation alters task-evoked pupillary responses in older but not younger adults: A single-blind active sham-controlled crossover trial.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Pathogenic tau in the mouse locus coeruleus produces noradrenergic hyperactivity and neuropsychiatric phenotypes reminiscent of early Alzheimer's disease.bioRxiv : the preprint server for biology · 2026Article
- Risk of depression after new-onset dementia or cognitive impairment: the Health and Retirement Study.Innovation in aging · 2026Article
- Subcortical correlates of sleep in aging and Alzheimer's disease: anBrain communications · 2026Article
- Multimodal Neuroimaging Mechanisms of Apathy in Alzheimer's Disease: A Narrative Review of Structural, Functional, and Molecular Evidence.International journal of general medicine · 2026Review
- CTE neuropathology alone is associated with dementia and cognitive symptoms.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Tau pathology in the brainstem monoaminergic neurons reflect resilience to Alzheimer's disease pathology in the Nun study cases.Acta neuropathologica communications · 2025Article
- Impact of early locus coeruleus lesions in the TgF344 Alzheimer's disease rat model.bioRxiv : the preprint server for biology · 2025Article
- Impact of Alzheimer's disease risk factors and local neuromelanin content on the transcriptomic landscape of the human locus coeruleus.bioRxiv : the preprint server for biology · 2025Article
- Catecholaminergic nucleus integrity and Alzheimer's pathology, symptoms, and progression.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- Regenerating Locus Coeruleus-Norepinephrine (LC-NE) Function: A Novel Approach for Neurodegenerative Diseases.Cell proliferation · 2025Review
- Mapping the Neuropsychiatric Symptoms in Alzheimer's Disease Using Biomarkers, Cognitive Abilities, and Personality Traits: A Systematic Review.Diagnostics (Basel, Switzerland) · 2025Review
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20 authors.
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Abstract
introductionEarly-onset Alzheimer's disease (EOAD) shows a higher burden of neuropsychiatric symptoms than late-onset Alzheimer's disease (LOAD). We aim to determine the differences in the severity of neuropsychiatric symptoms and locus coeruleus (LC) integrity between EOAD and LOAD accounting for disease stage.
methodsOne hundred four subjects with AD diagnosis and 32 healthy controls were included. Participants underwent magnetic resonance imaging (MRI) to measure LC integrity, measures of noradrenaline levels in cerebrospinal fluid (CSF) and Neuropsychiatric Inventory (NPI). We analyzed LC-noradrenaline measurements and clinical and Alzheimer's disease (AD) biomarker associations.
resultsEOAD showed higher NPI scores, lower LC integrity, and similar levels of CSF noradrenaline compared to LOAD. Notably, EOAD exhibited lower LC integrity independently of disease stage. LC integrity negatively correlated with neuropsychiatric symptoms. Noradrenaline levels were increased in AD correlating with AD biomarkers. DISCUSSION: Decreased LC integrity negatively contributes to neuropsychiatric symptoms. The higher LC degeneration in EOAD compared to LOAD could explain the more severe neuropsychiatric symptoms in EOAD. HIGHLIGHTS: LC degeneration is greater in early-onset AD (EOAD) compared to late-onset AD. Tau-derived LC degeneration drives a higher severity of neuropsychiatric symptoms. EOAD harbors a more profound selective vulnerability of the LC system. LC degeneration is associated with an increase of cerebrospinal fluid noradrenaline levels in AD.
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