Evidence map›Paper›PMID 18065507›Full record

ArticleAJNR. American journal of neuroradiology2008

Selective cerebral volume reduction in Rett syndrome: a multiple-approach MR imaging study.

J C Carter, D C Lanham, D Pham, G Bibat, S Naidu, W E Kaufmann

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 8% 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

59 citing papers in PubMed, 2 syntheses or guidelines pooled it, 109 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Rett syndrome.Nature reviews. Disease primers · 2024
    Review
  10. Developmental change of brain volume in Rett syndrome in Taiwan.Journal of neurodevelopmental disorders · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Comprehensive Volumetric Analysis ofFrontiers in neuroscience · 2022
    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

6 authors at 1 institution in 1 country.

J C CarterCenter for Genetic Disorders of Cognition and Behavior, Kennedy Krieger Institute, Baltimore, MD 21211, USA.
D C Lanham
D Pham
G Bibat
S Naidu
W E Kaufmann
Kennedy Krieger Institute · US

Funding

NICHD MENTAL RETARDATION RESEARCH CENTER CORE GRANTP30HD024061 · NICHD · KENNEDY KRIEGER CHILDRENS HOSPITAL · PI VALLE, DAVID · 1988 to 2013
$15.8M
RETT SYNDROME:GENETICS, PATHOGENESIS &SEARCH FOR MARKERP01HD024448 · NICHD · KENNEDY KRIEGER CHILDRENS HOSPITAL · PI NAIDU, SAKKUBAI R · 1987 to 2010
$10.0M
NICHD NIH HHS P01 HD024448NICHD NIH HHS P01 HD 24448NICHD NIH HHS P30 HD024061NICHD NIH HHS P30 HD 24061
6 · The paper itself

Abstract

background and purposePrevious studies have examined volumetric abnormalities in Rett syndrome (RTT), using MR imaging and focusing on selective changes. However, these studies preceded the identification of MECP2 as the gene mutated in most RTT cases. We studied regional brain volume changes as noted by MR imaging in girls with RTT who had mutations in the MECP2 gene and more or less severe clinical outcomes to further characterize the neuroanatomy of RTT and its correlations with clinical severity. MATERIALS AND

methodsComplementary semiautomated Talairach- and voxel-based approaches were used to study spoiled gradient-recalled acquisition sequence MR imaging scans from 23 girls with MECP2 mutations/RTT, including a pair of discordant monozygotic twins and 25 age-matched control girls. Both absolute and relative volumetric changes were examined to account for the well-documented global reduction in brain volume seen in RTT.

resultsAbsolute volumetric reductions were observed throughout the brain in RTT. Selective/relative decreases in parietal lobe gray matter, particularly in the dorsal parietal region, and mild, diffuse reductions in cortical white matter were observed in the RTT group compared with control subjects. In girls with RTT and a more severe phenotype, anterior frontal lobe volumes were relatively more reduced. Twin comparisons revealed selective preservation of the occipital cortex.

conclusionSelective reductions of dorsal parietal gray matter and preservation of the occipital cortex seem to be basic neuroanatomic features of RTT, whereas preferential reduction of the anterior frontal lobe appears to be a correlate of clinical severity in this disorder. The most affected brain regions include those that may underlie key functional deficits observed in RTT.

Indexed as

AtrophyBrainChildChild, PreschoolFemaleHumansImage Interpretation, Computer-AssistedImaging, Three-DimensionalMagnetic Resonance ImagingRett Syndrome

Identifiers

PMID18065507
PMCPMC4403765
OpenAlexW2159580096

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.