Evidence map›Paper›PMID 39829080›Full record

ArticleAnnals of neurology2025

Adult Neurogenesis in the Subventricular Zone of Patients with Huntington's and Parkinson's Diseases and following Long-Term Treatment with Deep Brain Stimulation.

Marta Snapyan, Francis Desmeules, Jonathan Munro, Morgan Bérard, Stephan Saikali, Peter V Gould, Maxime Richer, Emmanuelle Pourcher, Mélanie Langlois, Anne-Marie Dufresne and 5 more

Abstract read
In one paragraph

Article in Annals of neurology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Review
  2. Article
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  6. Article
  7. Neurogenesis altered by disease and stimulation.Nature reviews. Neurology · 2025
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors.

Marta SnapyanCERVO Brain Research Centre, Quebec City, Quebec, Canada.ORCID 0009-0006-3757-0789
Francis DesmeulesCERVO Brain Research Centre, Quebec City, Quebec, Canada.
Jonathan MunroCERVO Brain Research Centre, Quebec City, Quebec, Canada.
Morgan BérardCERVO Brain Research Centre, Quebec City, Quebec, Canada.
Stephan SaikaliHôpital de l'Enfant-Jésus, CHU de Québec-Université Laval, Quebec City, Quebec, Canada.
Peter V GouldHôpital de l'Enfant-Jésus, CHU de Québec-Université Laval, Quebec City, Quebec, Canada.
Maxime RicherHôpital de l'Enfant-Jésus, CHU de Québec-Université Laval, Quebec City, Quebec, Canada.
Emmanuelle PourcherHôpital de l'Enfant-Jésus, CHU de Québec-Université Laval, Quebec City, Quebec, Canada.
Mélanie LangloisHôpital de l'Enfant-Jésus, CHU de Québec-Université Laval, Quebec City, Quebec, Canada.
Anne-Marie DufresneHôpital de l'Enfant-Jésus, CHU de Québec-Université Laval, Quebec City, Quebec, Canada.
Michel Prud'hommeHôpital de l'Enfant-Jésus, CHU de Québec-Université Laval, Quebec City, Quebec, Canada.
Léo CantinHôpital de l'Enfant-Jésus, CHU de Québec-Université Laval, Quebec City, Quebec, Canada.
André ParentCERVO Brain Research Centre, Quebec City, Quebec, Canada.
Armen SaghatelyanCERVO Brain Research Centre, Quebec City, Quebec, Canada.
Martin ParentCERVO Brain Research Centre, Quebec City, Quebec, Canada.ORCID 0000-0002-0868-1010

Funding

Canada Foundation for Innovation CFI42160CIHR CIHR PJT 159733CIHR CIHR PJT 470155Fonds de Recherche du Québec-Santé 268922
6 · The paper itself

Abstract

objectiveParkinson's and Huntington's diseases are characterized by progressive neuronal loss. Previous studies using human postmortem tissues have shown the impact of neurodegenerative disorders on adult neurogenesis. The extent to which adult neural stem cells are activated in the subventricular zone and whether therapeutic treatments such as deep brain stimulation promote adult neurogenesis remains unclear. The goal of the present study is to assess adult neural stem cells activation and neurogenesis in the subventricular zone of patients with Huntington's and Parkinson's diseases who were treated or not by deep brain stimulation.

methodsPostmortem brain samples from Huntington's and Parkinson's disease patients who had received or not long-term deep brain stimulation of the subthalamic nucleus were used.

resultsOur results indicate a significant increase in the thickness of the subventricular zone and in the density of proliferating cells and activated stem cells in the brain of Huntington's disease subjects and Parkinson's disease patients treated with deep brain stimulation. We also observed an increase in the density of immature neurons in the brain of these patients.

interpretationOverall, our data indicate that long-term deep brain stimulation of the subthalamic nucleus promotes cell proliferation and neurogenesis in the subventricular zone that are reduced in Parkinson's disease. Taken together, our results also provide a detailed characterization of the cellular composition of the adult human subventricular zone and caudate nucleus in normal condition and in Parkinson's and Huntington's diseases and demonstrate the plasticity of these regions in response to neurodegeneration. ANN NEUROL 2025;97:894-906.

Indexed as

Deep Brain StimulationHuntington DiseaseLateral VentriclesNeurogenesisParkinson DiseaseAdultAgedFemaleHumansMaleMiddle AgedNeural Stem CellsSubthalamic Nucleus

Identifiers

PMID39829080
PMCPMC12010058

What OpenQuestion holds

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LicenceCC BY-NC
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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 OpenQuestion graph.