Evidence map›Paper›PMID 26849111›Full record

Observational studyAmerican journal of human genetics2016

The HTT CAG-Expansion Mutation Determines Age at Death but Not Disease Duration in Huntington Disease.

Jae Whan Keum, Aram Shin, Tammy Gillis, Jayalakshmi Srinidhi Mysore, Kawther Abu Elneel, Diane Lucente, Tiffany Hadzi, Peter Holmans, Lesley Jones, Michael Orth and 4 more

Open access · bronzeAbstract readObservational Study
In one paragraph

Observational study in American journal of human genetics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed
8.2field-weighted citation impact, top 2% 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

83 citing papers in PubMed, 163 citations in OpenAlex.

  1. Article
  2. Hydrogen Sulfide Signaling in Neurodegenerative Movement Disorders.Handbook of experimental pharmacology · 2026
    Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Observational
  17. Genetic modifiers of repeat expansion disorders.Emerging topics in life sciences · 2023
    Article
  18. Article
  19. Review
  20. Survival in Huntington's disease and other young-onset dementias.International journal of geriatric psychiatry · 2023
    Article

23 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

14 authors at 7 institutions in 3 countries.

Jae Whan KeumCenter for Human Genetic Research, Massachusetts General Hospital, Boston, MA 02114, USA.
Aram ShinCenter for Human Genetic Research, Massachusetts General Hospital, Boston, MA 02114, USA.
Tammy GillisCenter for Human Genetic Research, Massachusetts General Hospital, Boston, MA 02114, USA.
Jayalakshmi Srinidhi MysoreCenter for Human Genetic Research, Massachusetts General Hospital, Boston, MA 02114, USA.
Kawther Abu ElneelCenter for Human Genetic Research, Massachusetts General Hospital, Boston, MA 02114, USA.
Diane LucenteCenter for Human Genetic Research, Massachusetts General Hospital, Boston, MA 02114, USA.
Tiffany HadziGNS Healthcare Inc., One Charles Park, Cambridge, MA 02142, USA.
Peter HolmansMedical Research Council Centre for Neuropsychiatric Genetics and Genomics, Department of Psychological Medicine and Neurology, School of Medicine, Cardiff University, Cardiff CF24 4HQ, UK; Genetic Modifiers of Huntington's Disease Consortium.
Lesley JonesMedical Research Council Centre for Neuropsychiatric Genetics and Genomics, Department of Psychological Medicine and Neurology, School of Medicine, Cardiff University, Cardiff CF24 4HQ, UK; Genetic Modifiers of Huntington's Disease Consortium.
Michael OrthDepartment of Neurology, University of Ulm, Ulm 089081, Germany; Genetic Modifiers of Huntington's Disease Consortium.
Seung KwakCHDI Foundation, Princeton, NJ 08540, USA; Genetic Modifiers of Huntington's Disease Consortium.
Marcy E MacDonaldCenter for Human Genetic Research, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Neurology, Harvard Medical School, Boston, MA 02115, USA; Medical and Population Genetics Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Genetic Modifiers of Huntington's Disease Consortium.
James F GusellaCenter for Human Genetic Research, Massachusetts General Hospital, Boston, MA 02114, USA; Medical and Population Genetics Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Genetic Modifiers of Huntington's Disease Consortium.
Jong-Min LeeCenter for Human Genetic Research, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Neurology, Harvard Medical School, Boston, MA 02115, USA; Medical and Population Genetics Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Genetic Modifiers of Huntington's Disease Consortium. Electronic address: jlee51@mgh.harvard.edu.
Massachusetts General Hospital · USCenter for Human Genetics · USHarvard University · USHuntington's Disease Association · GBCardiff University · GBGNS Healthcare (United States) · USMedical Research Council · GB

Funding

TOXICITY AND SPECIFICITY COMPONENTS OF HD PATHOGENESISP50NS016367 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI MACDONALD, MARCY · 1996 to 2010
$15.8M
Disease-Modifying Genes in Huntington's DiseaseR01NS091161 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI JAMES F GUSELLA · 2015 to 2026
$7.2M
Genetic modifiers of Predict-HD phenotypesU01NS082079 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI GUSELLA, JAMES F · 2013 to 2015
$2.6M
RECEPTOR MECHANISMS IN STRIATAL DEVELOPMENT AND HUNTINGTON'S DISEASEP01NS016367 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI GUSELLA, JAMES F · 1985 to 1995
–
Medical Research Council MR/L010305/1NINDS NIH HHS NS16367NINDS NIH HHS P50 NS016367NINDS NIH HHS R01 NS091161NINDS NIH HHS R01NS091161NINDS NIH HHS U01 NS082079NINDS NIH HHS U01NS082079
6 · The paper itself

Abstract

Huntington disease (HD) is caused by an expanded HTT CAG repeat that leads in a length-dependent, completely dominant manner to onset of a characteristic movement disorder. HD also displays early mortality, so we tested whether the expanded CAG repeat exerts a dominant influence on age at death and on the duration of clinical disease. We found that, as with clinical onset, HD age at death is determined by expanded CAG-repeat length and has no contribution from the normal CAG allele. Surprisingly, disease duration is independent of the mutation's length. It is also unaffected by a strong genetic modifier of HD motor onset. These findings suggest two parsimonious alternatives. (1) HD pathogenesis is driven by mutant huntingtin, but before or near motor onset, sufficient CAG-driven damage occurs to permit CAG-independent processes and then lead to eventual death. In this scenario, some pathological changes and their clinical correlates could still worsen in a CAG-driven manner after disease onset, but these CAG-related progressive changes do not themselves determine duration. Alternatively, (2) HD pathogenesis is driven by mutant huntingtin acting in a CAG-dependent manner with different time courses in multiple cell types, and the cellular targets that lead to motor onset and death are different and independent. In this scenario, processes driven by HTT CAG length lead directly to death but not via the striatal pathology associated with motor manifestations. Each scenario has important ramifications for the design and testing of potential therapeutics, especially those aimed at preventing or delaying characteristic motor manifestations.

Indexed as

MutationAdolescentAdultAgedAged, 80 and overAge FactorsAllelesChildChild, PreschoolCohort StudiesCorpus StriatumHaplotypesHumansHuntingtin ProteinHuntington DiseaseMiddle AgedHTT protein, humanHuntingtin ProteinNerve Tissue Proteins

Identifiers

PMID26849111
PMCPMC4746370
OpenAlexW2260772890

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.