Evidence map›Paper›PMID 33090274›Full record

ArticleBrain structure & function2020

Unraveling the contributions to the neuromelanin-MRI contrast.

Nikos Priovoulos, Stan C J van Boxel, Heidi I L Jacobs, Benedikt A Poser, Kamil Uludag, Frans R J Verhey, Dimo Ivanov

Open access · hybridAbstract read
In one paragraph

Article in Brain structure & function, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 4% 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

48 citing papers in PubMed, 1 synthesis or guideline pooled it, 71 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Daily heart rate variability biofeedback training decreases locus coeruleus MRI contrast in younger adults in a randomized clinical trial.International journal of psychophysiology : official journal of the International Organization of Psychophysiology · 2023
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  12. Neuromelanin? TBrain communications · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 4 countries.

Nikos PriovoulosSchool for Mental Health and Neuroscience, Alzheimer Center Limburg, Faculty of Health, Medicine and Life Science, Maastricht University, Maastricht, Netherlands. nikos.priovoulos@maastrichtuniversity.nl.ORCID http://orcid.org/0000-0001-5661-6670
Stan C J van BoxelSchool for Mental Health and Neuroscience, Alzheimer Center Limburg, Faculty of Health, Medicine and Life Science, Maastricht University, Maastricht, Netherlands.
Heidi I L JacobsSchool for Mental Health and Neuroscience, Alzheimer Center Limburg, Faculty of Health, Medicine and Life Science, Maastricht University, Maastricht, Netherlands.
Benedikt A PoserDepartment of Cognitive Neuroscience, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, Netherlands.
Kamil UludagCenter for Neuroscience Imaging Research, Institute for Basic Science and Department of Biomedical Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu, Suwon, Republic of Korea.
Frans R J VerheySchool for Mental Health and Neuroscience, Alzheimer Center Limburg, Faculty of Health, Medicine and Life Science, Maastricht University, Maastricht, Netherlands.
Dimo IvanovDepartment of Cognitive Neuroscience, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, Netherlands. dimo.ivanov@maastrichtuniversity.nl.
Maastricht University · NLHarvard University · USTransnational University Limburg · NLUniversity Health Network · CA

Funding

Tracking the origin of tau pathology: dovetailing (pre-)preclinical biomarker trajectoriesR01AG062559 · NIA · MASSACHUSETTS GENERAL HOSPITAL · PI Heidi Irma Jacobs · 2019 to 2026
$4.8M
Nederlandse Organisatie voor Wetenschappelijk Onderzoek 451-14-035NIA NIH HHS R01 AG062559University of Suwon IBS-R015-D1
6 · The paper itself

Abstract

The Locus Coeruleus (LC) and the Substantia Nigra (SN) are small brainstem nuclei that change with aging and may be involved in the development of various neurodegenerative and psychiatric diseases. Magnetization Transfer (MT) MRI has been shown to facilitate LC and the SN visualization, and the observed contrast is assumed to be related to neuromelanin accumulation. Imaging these nuclei may have predictive value for the progression of various diseases, but interpretation of previous studies is hindered by the fact that the precise biological source of the contrast remains unclear, though several hypotheses have been put forward. To inform clinical studies on the possible biological interpretation of the LC- and SN contrast, we examined an agar-based phantom containing samples of natural Sepia melanin and synthetic Cys-Dopa-Melanin and compared this to the in vivo human LC and SN. T

Indexed as

AdultFemaleHumansImage EnhancementLocus CoeruleusMagnetic Resonance ImagingMaleMelaninsPhantoms, ImagingSubstantia NigraYoung AdultMelaninsneuromelaninLocus coeruleusMagnetization transferNeuromelaninNeuromelanin-MRISubstantia nigra

Identifiers

PMID33090274
PMCPMC7674382
OpenAlexW3094510370

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.