Evidence map›Paper›PMID 33555429›Full record

ReviewActa neuropathologica2021

Periphery and brain, innate and adaptive immunity in Parkinson's disease.

Ashley S Harms, Sara A Ferreira, Marina Romero-Ramos

2 registry-linked trialsOpen access · hybridAbstract readReview
In one paragraph

Review in Acta neuropathologica, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 143 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
143citing papers in PubMed, 5 pooled it
23.0field-weighted citation impact, top 1% of its field
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.

NCT05469997 nacompletednot on this mapstarted 2023, after this paper: background citation

Ketogenic Diet Interventions in Parkinson's Disease: Safeguarding the Gut Microbiome

TypeinterventionalSponsorUniversity of British ColumbiaRan2023 to 2024Enrolled52ConditionsParkinson DiseaseArmsMediterranean-Ketogenic Diet, Mediterranean diet supplemented with medium-chain triglyceride oil
NCT06816810 phase2not yet recruitingnot on this mapstarted 2025, after this paper: background citation

TALLman Family Energizes Research To Help Alleviate Neuroinflammation in Parkinson's Disease - "TALLER THAN PD." A Phase 2 Futility Study to Evaluate the Efficacy, Safety and Tolerability of Hydroxychloroquine in Subjects With Early Treated Parkinson's Disease

TypeinterventionalSponsorOttawa Hospital Research InstituteRan2025 to 2027Enrolled40ConditionsParkinson&Amp, #39, s DiseaseArmsHydroxychloroquine (HCQ)
3 · Its place in the literature

Who cites it

143 citing papers in PubMed, 5 syntheses or guidelines pooled it, 264 citations in OpenAlex.

  1. Pooled it
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  3. Impact of aging on animal models of Parkinson's disease.Frontiers in aging neuroscience · 2022
    Pooled it
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  13. CD163 Dominance Within Macrophages/Microglia Reflects a Favorable Prognosis in Patients With Glioblastoma.Neuropathology : official journal of the Japanese Society of Neuropathology · 2026
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83 more citing papers are in PubMed but not listed here.

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

3 authors at 2 institutions in 2 countries.

Ashley S HarmsDepartment of Neurology and Center for Neurodegeneration and Experimental Therapeutics, The University of Alabama at Birmingham, Birmingham, AL, USA.
Sara A FerreiraDepartment of Biomedicine and CNS Disease Modelling Group, Aarhus University, Høegh-Guldbergsgade 10, 8000C, Aarhus, Denmark.
Marina Romero-RamosDepartment of Biomedicine and CNS Disease Modelling Group, Aarhus University, Høegh-Guldbergsgade 10, 8000C, Aarhus, Denmark. mrr@biomed.au.dk.ORCID 0000-0003-0970-578X
Aarhus University · DKUniversity of Alabama at Birmingham · US

Funding

Mechanisms of alpha-synuclein mediated inflammation in multiple system atrophyR01NS107316 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI HARMS, ASHLEY N · 2018 to 2022
$1.6M
NINDS NIH HHS R01 NS107316
6 · The paper itself

Abstract

Parkinson's disease (PD) is a neurodegenerative disorder where alpha-synuclein plays a central role in the death and dysfunction of neurons, both, in central, as well as in the peripheral nervous system. Besides the neuronal events observed in patients, PD also includes a significant immune component. It is suggested that the PD-associated immune response will have consequences on neuronal health, thus opening immunomodulation as a potential therapeutic strategy in PD. The immune changes during the disease occur in the brain, involving microglia, but also in the periphery with changes in cells of the innate immune system, particularly monocytes, as well as those of adaptive immunity, such as T-cells. This realization arises from multiple patient studies, but also from data in animal models of the disease, providing strong evidence for innate and adaptive immune system crosstalk in the central nervous system and periphery in PD. Here we review the data showing that alpha-synuclein plays a crucial role in the activation of the innate and adaptive immune system. We will also describe the studies suggesting that inflammation in PD includes early changes in innate and adaptive immune cells that develop dynamically through time during disease, contributing to neuronal degeneration and symptomatology in patients. This novel finding has contributed to the definition of PD as a multisystem disease that should be approached in a more integratory manner rather than a brain-focused classical approach.

Indexed as

Adaptive ImmunityAnimalsBrainHumansImmunity, InnateNeuroimmunomodulationParkinson DiseaseAlpha-synucleinMicrogliaMonocyteNeuroinflammationParkinsonT-Cell

Identifiers

PMID33555429
PMCPMC7952334
OpenAlexW3126400801

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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 OpenQuestion graph.