Evidence map›Paper›PMID 25226172›Full record

ArticlePloS one2014

Reduced cortical complexity in children with Prader-Willi Syndrome and its association with cognitive impairment and developmental delay.

Akvile Lukoshe, Anita C Hokken-Koelega, Aad van der Lugt, Tonya White

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

20 citing papers in PubMed, 36 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Review
  5. Article
  6. Necdin: A purposive integrator of molecular interaction networks for mammalian neuron vitality.Genes to cells : devoted to molecular & cellular mechanisms · 2021
    Review
  7. Article
  8. A cross-comparison of cognitive ability across 8 genomic disorders.Current opinion in genetics & development · 2021
    Review
  9. Article
  10. Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. PRADER-WILLI SYNDROME: WHAT IS THE GENERAL PEDIATRICIAN SUPPOSED TO DO? - A REVIEW.Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo
    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

4 authors at 2 institutions in 1 country.

Akvile LukosheDutch Growth Research Foundation, Rotterdam, The Netherlands; Department of Pediatrics, Erasmus Medical Centre Rotterdam/Sophia Children's Hospital Rotterdam Rotterdam, The Netherlands.
Anita C Hokken-KoelegaDutch Growth Research Foundation, Rotterdam, The Netherlands; Department of Pediatrics, Erasmus Medical Centre Rotterdam/Sophia Children's Hospital Rotterdam Rotterdam, The Netherlands.
Aad van der LugtDepartment of Radiology, Erasmus Medical Centre Rotterdam, Rotterdam, The Netherlands.
Tonya WhiteDepartment of Child and Adolescent Psychiatry, Erasmus Medical Centre Rotterdam - Sophia Children's Hospital, Rotterdam, The Netherlands; Department of Radiology, Erasmus Medical Centre Rotterdam, Rotterdam, The Netherlands.
Erasmus University Rotterdam · NLHersenstichting · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrader-Willi Syndrome (PWS) is a complex neurogenetic disorder with symptoms involving not only hypothalamic, but also a global, central nervous system dysfunction. Previously, qualitative studies reported polymicrogyria in adults with PWS. However, there have been no quantitative neuroimaging studies of cortical morphology in PWS and no studies to date in children with PWS. Thus, our aim was to investigate and quantify cortical complexity in children with PWS compared to healthy controls. In addition, we investigated differences between genetic subtypes of PWS and the relationship between cortical complexity and intelligence within the PWS group.

methodsHigh-resolution structural magnetic resonance images were acquired in 24 children with genetically confirmed PWS (12 carrying a deletion (DEL), 12 with maternal uniparental disomy (mUPD)) and 11 age- and sex-matched typically developing siblings as healthy controls. Local gyrification index (lGI) was obtained using the FreeSurfer software suite.

resultsFour large clusters, two in each hemisphere, comprising frontal, parietal and temporal lobes, had lower lGI in children with PWS, compared to healthy controls. Clusters with lower lGI also had significantly lower cortical surface area in children with PWS. No differences in cortical thickness of the clusters were found between the PWS and healthy controls. lGI correlated significantly with cortical surface area, but not with cortical thickness. Within the PWS group, lGI in both hemispheres correlated with Total IQ and Verbal IQ, but not with Performance IQ. Children with mUPD, compared to children with DEL, had two small clusters with lower lGI in the right hemisphere. lGI of these clusters correlated with cortical surface area, but not with cortical thickness or IQ.

conclusionsThese results suggest that lower cortical complexity in children with PWS partially underlies cognitive impairment and developmental delay, probably due to alterations in gene networks that play a prominent role in early brain development.

Indexed as

AdolescentBrain MappingCase-Control StudiesCerebral CortexChildCognition DisordersDevelopmental DisabilitiesFemaleFunctional LateralityHumansIntelligenceMagnetic Resonance ImagingMalePrader-Willi Syndrome

Identifiers

PMID25226172
PMCPMC4165760
OpenAlexW2019552384

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.