Evidence map›Paper›PMID 34635909›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2022

Gray Matter Volume Variability in Young Healthy Adults: Influence of Gender Difference and Brain-Derived Neurotrophic Factor Genotype.

Hiraku Watanabe, Sho Kojima, Kazuaki Nagasaka, Ken Ohno, Noriko Sakurai, Naoki Kodama, Naofumi Otsuru, Hideaki Onishi

Open access · hybridAbstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

4 citing papers in PubMed, 5 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. 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

8 authors at 2 institutions in 1 country.

Hiraku WatanabeGraduate School, Niigata University of Health and Welfare, Niigata-City, Niigata, 950-3198, Japan.ORCID 0000-0002-8348-675X
Sho KojimaInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata-City, Niigata, Niigata, 950-3198, Japan.
Kazuaki NagasakaInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata-City, Niigata, Niigata, 950-3198, Japan.
Ken OhnoInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata-City, Niigata, Niigata, 950-3198, Japan.
Noriko SakuraiInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata-City, Niigata, Niigata, 950-3198, Japan.
Naoki KodamaInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata-City, Niigata, Niigata, 950-3198, Japan.
Naofumi OtsuruInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata-City, Niigata, Niigata, 950-3198, Japan.
Hideaki OnishiInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata-City, Niigata, Niigata, 950-3198, Japan.
Niigata University of Health and Welfare · JPUniversity of Fukui · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although brain gray matter (GM) plastically changes during short-term training, it is still unclear whether brain structures are stable for short periods (several months). Therefore, this study aimed to re-test the short-term variability of GM volumes and to clarify the effect of factors (gender and BDNF-genotype) expected to contribute to such variability. The subjects comprised 41 young healthy adults. T1-weighted images were acquired twice with an interval of approximately 4 months using a 3 T-MRI scanner. Voxel-based morphometry (VBM) was used to calculate GM volumes in 47 regions. The intraclass correlation coefficient (ICC) and Test-retest variability (%TRV) were used as indices of variability. As a result, the ICCs in 43 regions were excellent (ICC > 0.90) and those in 3 regions were good (ICC > 0.80), whereas the ICC in the thalamus was moderate (ICC = 0.694). Women had a higher %TRV than men in 5 regions, and %TRV of the Val66Val group was higher than that of the Met carrier group in 2 regions. Moreover, the Female-Val66Val group had a higher %TRV than the Male-Met carrier group in 3 regions. These results indicate that although the short-term variability of GM volumes is small, it is affected by within-subject factors.

Indexed as

Brain-Derived Neurotrophic FactorGray MatterAdultBrainCerebral CortexFemaleGenotypeHumansMagnetic Resonance ImagingMalePregnancySex FactorsBrain-Derived Neurotrophic Factorbrain-derived neurotrophic factor genotypegendergray matter volumevoxel-based morphometry

Identifiers

PMID34635909
PMCPMC9201594
OpenAlexW3207160852

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.