Evidence map›Paper›PMID 23092982›Full record

ArticleTranslational psychiatry2012

Absence of age-related prefrontal NAA change in adults with autism spectrum disorders.

Y Aoki, O Abe, N Yahata, H Kuwabara, T Natsubori, N Iwashiro, Y Takano, H Inoue, Y Kawakubo, W Gonoi and 11 more

Open access · goldAbstract read
In one paragraph

Article in Translational psychiatry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 4 pooled it
2.6field-weighted citation impact, top 11% 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

23 citing papers in PubMed, 4 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Pooled it
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  4. Neural bases of antisocial behavior: a voxel-based meta-analysis.Social cognitive and affective neuroscience · 2014
    Pooled it
  5. Trial
  6. Trial
  7. Article
  8. Article
  9. In vivo Human MR Spectroscopy Using a Clinical Scanner: Development, Applications, and Future Prospects.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2022
    Review
  10. Article
  11. Concentrations of Cortical GABA and Glutamate in Young Adults With Autism Spectrum Disorder.Autism research : official journal of the International Society for Autism Research · 2020
    Article
  12. Review
  13. Article
  14. Article
  15. Article
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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

21 authors at 4 institutions in 1 country.

Y AokiDepartment of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
O Abe
N Yahata
H Kuwabara
T Natsubori
N Iwashiro
Y Takano
H Inoue
Y Kawakubo
W Gonoi
H Sasaki
M Murakami
M Katsura
Y Nippashi
H Takao
A Kunimatsu
H Matsuzaki
K J Tsuchiya
N Kato
K Kasai
H Yamasue
The University of Tokyo · JPHamamatsu University School of Medicine · JPNihon University · JPShowa University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Atypical trajectory of brain growth in autism spectrum disorders (ASDs) has been recognized as a potential etiology of an atypical course of behavioral development. Numerous neuroimaging studies have focused on childhood to investigate atypical age-related change of brain structure and function, because it is a period of neuron and synapse maturation. Recent studies, however, have shown that the atypical age-related structural change of autistic brain expands beyond childhood and constitutes neural underpinnings for lifelong difficulty to behavioral adaptation. Thus, we examined effects of aging on neurochemical aspects of brain maturation using 3-T proton magnetic resonance spectroscopy ((1)H-MRS) with single voxel in the medial prefrontal cortex (PFC) in 24 adult men with non-medicated high-functioning ASDs and 25 age-, IQ- and parental-socioeconomic-background-matched men with typical development (TD). Multivariate analyses of covariance demonstrated significantly high N-acetylaspartate (NAA) level in the ASD subjects compared with the TD subjects (F=4.83, P=0.033). The low NAA level showed a significant positive correlation with advanced age in the TD group (r=-0.618, P=0.001), but was not evident among the ASD individuals (r=0.258, P=0.223). Fisher's r-to-z transformation showed a significant difference in the correlations between the ASD and TD groups (Z=-3.23, P=0.001), which indicated that the age-NAA relationship was significantly specific to people with TD. The current (1)H-MRS study provided new evidence that atypical age-related change of neurochemical aspects of brain maturation in ASD individuals expands beyond childhood and persists during adulthood.

Indexed as

AdultAge FactorsAgingAspartic AcidAsperger SyndromeAutistic DisorderHumansMagnetic Resonance ImagingMagnetic Resonance SpectroscopyMaleMultivariate AnalysisPrefrontal CortexAspartic AcidN-acetylaspartate

Identifiers

PMID23092982
PMCPMC3565815
OpenAlexW2002925976

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.