Evidence map›Paper›PMID 24962150›Full record

ArticleBMC medical genomics2014

Identification of Chiari Type I Malformation subtypes using whole genome expression profiles and cranial base morphometrics.

Christina A Markunas, Eric Lock, Karen Soldano, Heidi Cope, Chien-Kuang C Ding, David S Enterline, Gerald Grant, Herbert Fuchs, Allison E Ashley-Koch, Simon G Gregory

Open access · goldAbstract read
In one paragraph

Article in BMC medical genomics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. MRI-morphometric characterization of Chiari malformation types 0 and 1 with syringomyelia: implications for diagnosis and pathogenesis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Observational
  3. Article
  4. The Genetics of Chiari 1 Malformation.Journal of clinical medicine · 2024
    Review
  5. Article
  6. Review
  7. Chiari I malformation in patients with RASopathies.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2021
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Chiari I malformation in defined genetic syndromes in children: are there common pathways?Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2019
    Article
  13. Article
  14. Diagnostic accuracy of classical radiological measurements for basilar invagination of type B at MRI.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2019
    Article
  15. Review
  16. Digenic mutations of humanHuman genome variation · 2016
    Article
  17. Article
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

10 authors at 4 institutions in 1 country.

Christina A Markunas
Eric Lock
Karen Soldano
Heidi Cope
Chien-Kuang C Ding
David S Enterline
Gerald Grant
Herbert Fuchs
Allison E Ashley-Koch
Simon G GregoryDuke Center for Human Genetics, Duke University Medical Center, Durham, NC, USA. simon.gregory@duke.edu.
Center for Human Genetics · USDuke Medical Center · USDuke University · USLucile Packard Children's Hospital · US

Funding

Genetics Training Grant-Year 26T32GM007754 · NIGMS · DUKE UNIVERSITY · PI HAASE, STEVEN B · 1985 to 2019
$8.3M
Linkage and candidate gene analysis in non-syndromic Chiari type IR01NS063273 · NINDS · DUKE UNIVERSITY · PI ASHLEY-KOCH, ALLISON E, GREGORY, SIMON G · 2009 to 2013
$2.0M
NIGMS NIH HHS T32 GM007754NINDS NIH HHS NS063273NINDS NIH HHS R01 NS063273
6 · The paper itself

Abstract

backgroundChiari Type I Malformation (CMI) is characterized by herniation of the cerebellar tonsils through the foramen magnum at the base of the skull, resulting in significant neurologic morbidity. As CMI patients display a high degree of clinical variability and multiple mechanisms have been proposed for tonsillar herniation, it is hypothesized that this heterogeneous disorder is due to multiple genetic and environmental factors. The purpose of the present study was to gain a better understanding of what factors contribute to this heterogeneity by using an unsupervised statistical approach to define disease subtypes within a case-only pediatric population.

methodsA collection of forty-four pediatric CMI patients were ascertained to identify disease subtypes using whole genome expression profiles generated from patient blood and dura mater tissue samples, and radiological data consisting of posterior fossa (PF) morphometrics. Sparse k-means clustering and an extension to accommodate multiple data sources were used to cluster patients into more homogeneous groups using biological and radiological data both individually and collectively.

resultsAll clustering analyses resulted in the significant identification of patient classes, with the pure biological classes derived from patient blood and dura mater samples demonstrating the strongest evidence. Those patient classes were further characterized by identifying enriched biological pathways, as well as correlated cranial base morphological and clinical traits.

conclusionsOur results implicate several strong biological candidates warranting further investigation from the dura expression analysis and also identified a blood gene expression profile corresponding to a global down-regulation in protein synthesis.

Indexed as

Gene Expression ProfilingArnold-Chiari MalformationChildCluster AnalysisFemaleGene Expression RegulationGenome, HumanHumansMagnetic Resonance ImagingMalePrincipal Component AnalysisReal-Time Polymerase Chain ReactionSkull

Identifiers

PMID24962150
PMCPMC4082616
OpenAlexW2029609102

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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.