Evidence map›Paper›PMID 41522369›Full record

ReviewAlzheimer's & dementia (New York, N. Y.)

Locus coeruleus alterations in dementia with Lewy bodies: A systematic review.

Anaëlle Bain, Charlotte Tomeo, Claire André, Antoine Garnier-Crussard, Robin de Flores, Sophie Dautricourt

Abstract readReview
In one paragraph

Review in Alzheimer's & dementia (New York, N. Y.). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Anaëlle BainClinical and Research Memory Centre of Grenoble Arc Alpin Grenoble Alpes Hospital Grenoble France.ORCID https://orcid.org/0009-0007-4459-4102
Charlotte TomeoDepartment of Geriatric Medicine Tenon Hospital, Assistance Publique-Hôpitaux de Paris Paris France.
Claire AndréNormandie Univ UNICAEN INSERM U1237 Neuropresage Team Cyceron Caen France.
Antoine Garnier-CrussardUniversité Claude Bernard Lyon 1 CNRS INSERM Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, F-69500 Bron France.
Robin de FloresNormandie Univ UNICAEN INSERM U1237 Neuropresage Team Cyceron Caen France.
Sophie DautricourtClinical and Research Memory Centre of Lyon Clinical Research Center "Ageing-Brain-Frailty" Charpennes Hospital Hospices Civils de Lyon Villeurbanne France.ORCID https://orcid.org/0000-0001-8848-8300

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe locus coeruleus (LC) is a small nucleus located deep within the brainstem, serving as the brain's main source of noradrenergic neurons. Through its extensive projections, it plays a critical role in regulating cognitive processes and arousal. Although LC degeneration has been well documented in Alzheimer's disease and Parkinson's disease, its specific involvement in the pathophysiology of dementia with Lewy bodies (DLB) remains poorly understood.

methodsThis systematic review, conducted in accordance with the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines, explores the role of LC in the pathogenesis of DLB by synthesizing findings from human neuropathological and neuroimaging research and animal models of α-synucleinopathy.

resultsAlthough studies directly examining the LC in DLB remain limited, particularly in human living patients, available evidence points to early and severe LC alterations in DLB and suggests that LC dysfunction may contribute to key clinical symptoms such as impaired arousal and anxiety. DISCUSSION: A better understanding of the mechanisms driving LC dysfunction and neurodegeneration in DLB could facilitate the development of novel biomarkers and, ultimately, symptomatic therapies. Highlights: Locus coeruleus (LC) alterations are among the earliest changes in dementia with Lewy bodies (DLB).Accumulation of α-synuclein in the LC disrupts noradrenergic function.LC neurodegeneration may contribute to cognitive and neuropsychiatric symptoms.Neuromelanin-sensitive magnetic resonance imaging (NM-MRI) reveals LC signal loss from the prodromal stage of DLB.LC dysfunction emerges as a potential biomarker and therapeutic target in DLB.

Indexed as

Lewy body diseaselocus coeruleusα‐synuclein

Identifiers

PMID41522369
PMCPMC12784214

What Socratic holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.