Evidence map›Paper›PMID 19727389›Full record

ArticlePloS one2009

Impaired prefrontal hemodynamic maturation in autism and unaffected siblings.

Yuki Kawakubo, Hitoshi Kuwabara, Kei-Ichiro Watanabe, Michiko Minowa, Toshikazu Someya, Iwao Minowa, Toshiaki Kono, Hisami Nishida, Toshiro Sugiyama, Nobumasa Kato and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 18% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Observational
  3. Article
  4. Review
  5. Review
  6. Near-infrared spectroscopy in child and adolescent neurodevelopmental disorders.PCN reports : psychiatry and clinical neurosciences · 2022
    Review
  7. Article
  8. Review
  9. Article
  10. Deficits in verbal fluency in presymptomaticJournal of neurology, neurosurgery, and psychiatry · 2020
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Broader Autism Phenotype in Siblings of Children with ASD--A Review.International journal of molecular sciences · 2015
    Review
  17. Article
  18. Article
  19. Review
  20. 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

11 authors at 2 institutions in 1 country.

Yuki KawakuboDepartment of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, Tokyo, Japan. yukik-tky@umin.ac.jp
Hitoshi Kuwabara
Kei-Ichiro Watanabe
Michiko Minowa
Toshikazu Someya
Iwao Minowa
Toshiaki Kono
Hisami Nishida
Toshiro Sugiyama
Nobumasa Kato
Kiyoto Kasai
The University of Tokyo · JPShowa University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDysfunctions of the prefrontal cortex have been previously reported in individuals with autism spectrum disorders (ASD). Previous studies reported that first-degree relatives of individuals with ASD show atypical brain activity during tasks associated with social function. However, developmental changes in prefrontal dysfunction in ASD and genetic influences on the phenomena remain unclear. In the present study, we investigated the change in hemoglobin concentration in the prefrontal cortex as measured with near-infrared spectroscopy, in children and adults with ASD during the letter fluency test. Moreover, to clarify the genetic influences on developmental changes in the prefrontal dysfunction in ASD, unaffected siblings of the ASD participants were also assessed. METHODOLOGY/PRINCIPAL

findingsStudy participants included 27 individuals with high-functioning ASD, age- and IQ-matched 24 healthy non-affected siblings, and 27 unrelated healthy controls aged 5 to 39 years. The relative concentration of hemoglobin ([Hb]) in the prefrontal cortex was measured during the letter fluency task. For children, neither the [oxy-Hb] change during the task nor task performances differed significantly among three groups. For adults, the [oxy-Hb] increases during the task were significantly smaller in the bilateral prefrontal cortex in ASD than those in control subjects, although task performances were similar. In the adult siblings the [oxy-Hb] change was intermediate between those in controls and ASDs. CONCLUSION/SIGNIFICANCE: Although indirectly due to a cross-sectional design, the results of this study indicate altered age-related change of prefrontal activity during executive processing in ASD. This is a first near-infrared spectroscopy study that implies alteration in the age-related changes of prefrontal activity in ASD and genetic influences on the phenomena.

Indexed as

AdolescentAdultAutistic DisorderBrain MappingChildChild, PreschoolFamily HealthFemaleGenetic Predisposition to DiseaseHemodynamicsHemoglobinsHumansLanguageMaleOxyhemoglobinsSpectroscopy, Near-InfraredHemoglobinsOxyhemoglobins

Identifiers

PMID19727389
PMCPMC2731203
OpenAlexW2071913562

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.