Evidence map›Paper›PMID 41418088›Full record

ArticleNeurology2026

Sequence Variants in Small CAG Repeat Expansions of the

Anna Heinzmann, Emilien Petit, Jessica Dawson, Chris Kay, Claire-Sophie Davoine, Jean-Loup Méreaux, Hailey Findlay Black, Larissa Arning, Huu Phuc Nguyen, Giulia Coarelli and 6 more

Abstract read
In one paragraph

Article in Neurology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Review
  2. Review
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

16 authors.

Anna HeinzmannSorbonne Université, Paris Brain Institute (ICM Institut du Cerveau), APHP, INSERM, CRNS, France.ORCID 0000-0001-8522-7199
Emilien PetitSorbonne Université, Paris Brain Institute (ICM Institut du Cerveau), APHP, INSERM, CRNS, France.ORCID 0009-0000-0602-7122
Jessica DawsonCenter for Molecular Medicine and Therapeutics, Department of Medical Genetics, University of British Columbia, Vancouver, Canada.
Chris KayCenter for Molecular Medicine and Therapeutics, Department of Medical Genetics, University of British Columbia, Vancouver, Canada.
Claire-Sophie DavoineSorbonne Université, Paris Brain Institute (ICM Institut du Cerveau), APHP, INSERM, CRNS, France.
Jean-Loup MéreauxSorbonne Université, Paris Brain Institute (ICM Institut du Cerveau), APHP, INSERM, CRNS, France.ORCID 0000-0002-4279-7252
Hailey Findlay BlackCenter for Molecular Medicine and Therapeutics, Department of Medical Genetics, University of British Columbia, Vancouver, Canada.
Larissa ArningDepartment of Human Genetics, Medical Faculty, Ruhr University of Bochum, Germany.
Huu Phuc NguyenDepartment of Human Genetics, Medical Faculty, Ruhr University of Bochum, Germany.
Giulia CoarelliSorbonne Université, Paris Brain Institute (ICM Institut du Cerveau), APHP, INSERM, CRNS, France.ORCID 0000-0002-7824-8343
Sabrina SayahSorbonne Université, Paris Brain Institute (ICM Institut du Cerveau), APHP, INSERM, CRNS, France.ORCID 0000-0002-0382-9995
Jeremie ParienteNeurology Department, Hôpital Purpan, Centre Hospitalier Universitaire de Toulouse, France; and.ORCID 0000-0002-9850-296X
Fleur GérardNeurology Department, Hôpital Purpan, Centre Hospitalier Universitaire de Toulouse, France; and.
Hortense HurmicSorbonne Université, Paris Brain Institute (ICM Institut du Cerveau), APHP, INSERM, CRNS, France.ORCID 0009-0004-4712-1501
Michael R HaydenCenter for Molecular Medicine and Therapeutics, Department of Medical Genetics, University of British Columbia, Vancouver, Canada.ORCID 0000-0001-5159-1419
Alexandra DurrSorbonne Université, Paris Brain Institute (ICM Institut du Cerveau), APHP, INSERM, CRNS, France.ORCID 0000-0002-8921-7104

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesHuntington disease is an autosomal dominant neurologic disorder caused by an unstable cytosine-adenine-guanine (CAG) expansion (>35 CAG) in the

methodsWe included carriers with uninterrupted CAG

resultsWe analyzed 328 carriers with uninterrupted CAG DISCUSSION: In this large cohort, including DNA sequence and phenotypical data, the LOI variant showed a significant modifying effect on AO, motor, and cognitive disease progression. These findings, along with the identification of a novel variant, have important implications for genetic testing and counseling, especially for individuals with expansions close to cutoff ranges. In addition, they underscore the need to integrate the DNA sequence in the diagnostic process and revisit current onset prediction models.

Indexed as

Huntingtin ProteinHuntington DiseaseTrinucleotide Repeat ExpansionAdultAgedAge of OnsetDisease ProgressionFemaleGenetic VariationHeterozygoteHumansLongitudinal StudiesMaleMiddle AgedHTT protein, humanHuntingtin Protein

Identifiers

PMID41418088
PMCPMC12720291

What OpenQuestion 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 OpenQuestion graph.