Evidence map›Paper›PMID 33500176›Full record

ArticleBiological psychiatry2021

Dynamics of Cortical Degeneration Over a Decade in Huntington's Disease.

Eileanoir B Johnson, Gabriel Ziegler, William Penny, Geraint Rees, Sarah J Tabrizi, Rachael I Scahill, Sarah Gregory

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Biological psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.9field-weighted citation impact, top 5% 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.

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

32 citing papers in PubMed, 60 citations in OpenAlex.

  1. Trial
  2. Stage-dependent tau-PET signatures in Huntington's disease revealed by [¹⁸F]PI-2620.European journal of nuclear medicine and molecular imaging · 2026
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  15. Frontotemporal dementia phenotype in late-onset Huntington disease without chorea.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2023
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  20. M2 Cortex Circuitry and Sensory-Induced Behavioral Alterations in Huntington's Disease: Role of Superior Colliculus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Eileanoir B JohnsonHuntington's Disease Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom. Electronic address: eileanoir.johnson@ucl.ac.uk.
Gabriel ZieglerInstitute of Cognitive Neurology and Dementia Research, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany; German Center for Neurodegenerative Diseases, Magdeburg, Germany. Electronic address: gabriel.ziegler@dzne.de.
William PennySchool of Psychology, University of East Anglia, Norwich, United Kingdom.
Geraint ReesWellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom.
Sarah J TabriziHuntington's Disease Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom; Dementia Research Institute at University College London, London, United Kingdom.
Rachael I ScahillHuntington's Disease Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom.
Sarah GregoryHuntington's Disease Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom.
Huntington's Disease Association · GBGerman Center for Neurodegenerative Diseases · DEUniversity of East Anglia · GBWellcome Centre for Human Neuroimaging · GB

Funding

Medical Research CouncilWellcome TrustWellcome Trust 200181/Z/15/Z
6 · The paper itself

Abstract

backgroundCharacterizing changing brain structure in neurodegeneration is fundamental to understanding long-term effects of pathology and ultimately providing therapeutic targets. It is well established that Huntington's disease (HD) gene carriers undergo progressive brain changes during the course of disease, yet the long-term trajectory of cortical atrophy is not well defined. Given that genetic therapies currently tested in HD are primarily expected to target the cortex, understanding atrophy across this region is essential.

methodsCapitalizing on a unique longitudinal dataset with a minimum of 3 and maximum of 7 brain scans from 49 HD gene carriers and 49 age-matched control subjects, we implemented a novel dynamical systems approach to infer patterns of regional neurodegeneration over 10 years. We use Bayesian hierarchical modeling to map participant- and group-level trajectories of atrophy spatially and temporally, additionally relating atrophy to the genetic marker of HD (CAG-repeat length) and motor and cognitive symptoms.

resultsWe show, for the first time, that neurodegenerative changes exhibit complex temporal dynamics with substantial regional variation around the point of clinical diagnosis. Although widespread group differences were seen across the cortex, the occipital and parietal regions undergo the greatest rate of cortical atrophy. We have established links between atrophy and genetic markers of HD while demonstrating that specific cortical changes predict decline in motor and cognitive performance.

conclusionsHD gene carriers display regional variability in the spatial pattern of cortical atrophy, which relates to genetic factors and motor and cognitive symptoms. Our findings indicate a complex pattern of neuronal loss, which enables greater characterization of HD progression.

Indexed as

Huntington DiseaseAtrophyBayes TheoremBrainChildDisease ProgressionHumansMagnetic Resonance ImagingAtrophyCortexHuntington’s diseaseImagingLongitudinalSubcortex

Identifiers

PMID33500176
PMCPMC7986936
OpenAlexW3104643362

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.