Evidence map›Paper›PMID 31735379›Full record

ArticleNeurobiology of aging2020

Adult brain aging investigated using BMC-mcDESPOT-based myelin water fraction imaging.

Mustapha Bouhrara, Abinand C Rejimon, Luis E Cortina, Nikkita Khattar, Christopher M Bergeron, Luigi Ferrucci, Susan M Resnick, Richard G Spencer

Abstract read
In one paragraph

Article in Neurobiology of aging, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
–field-weighted citation impact
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

45 citing papers in PubMed.

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  9. Review
  10. Evidence of association between higher cardiorespiratory fitness and higher cerebral myelination in aging.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  11. Article
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  17. bioRxiv : the preprint server for biology · 2023
    Article
  18. REUSED: A deep neural network method for rapid whole-brain high-resolution myelin water fraction mapping from extremely under-sampled MRI.Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society · 2023
    Article
  19. 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

8 authors.

Mustapha BouhraraLaboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA. Electronic address: bouhraram@mail.nih.gov.
Abinand C RejimonLaboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
Luis E CortinaLaboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
Nikkita KhattarLaboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
Christopher M BergeronLaboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
Luigi FerrucciTranslational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
Susan M ResnickLaboratory of Behavioral Neuroscience, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
Richard G SpencerLaboratory of Clinical Investigation, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA.

Funding

The Baltimore Longitudinal Study Of AgingZIAAG000015 · NIA · NATIONAL INSTITUTE ON AGING · PI SIMONSICK, ELEANOR MARIE · 2009 to 2025
$116.9M
Research Education ComponentP30AG066507 · NIA · JOHNS HOPKINS UNIVERSITY · PI Corinne Pettigrew · 2020 to 2026
$29.3M
Cerebral Microstructure in Aging and Dementia using Advanced Quantitative MRIZIAAG000353 · NIA · NATIONAL INSTITUTE ON AGING · PI BOUHRARA, MUSTAPHA · 2020 to 2025
$1.9M
Advanced magnetic resonance imaging of the human brain in normative aging, cognitive impairment, and dementiaZIAAG000452 · NIA · NATIONAL INSTITUTE ON AGING · PI SPENCER, RICHARD · 2017 to 2025
$1.4M
Intramural NIH HHS Z99 AG999999NIA NIH HHS P30 AG066507
6 · The paper itself

Abstract

The relationship between regional brain myelination and aging has been the subject of intense study, with magnetic resonance imaging perhaps the most effective modality for elucidating this. However, most of these studies have used nonspecific methods to probe myelin content, including diffusion tensor imaging, magnetization transfer ratio, and relaxation times. In the present study, we used the BMC-mcDESPOT analysis, a direct and specific method for imaging of myelin water fraction (MWF), a surrogate of myelin content. We investigated age-related differences in MWF in several brain regions in a large cohort of cognitively unimpaired participants, spanning a wide age range. Our results indicate a quadratic, inverted U-shape, relationship between MWF and age in all brain regions investigated, suggesting that myelination continues until middle age followed by decreases at older ages. We also observed that these age-related differences vary across different brain regions, as expected. Our results provide evidence for nonlinear associations between age and myelin in a large sample of well-characterized adults, using a direct myelin content imaging method.

Indexed as

AgedAged, 80 and overAgingBody WaterBrainFemaleHumansMagnetic Resonance ImagingMaleMyelin SheathBMC-mcDESPOTMyelin water fractionNormal agingQuantitative MRI

Identifiers

PMID31735379
PMCPMC6924176

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Registered trials

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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.