Evidence map›Paper›PMID 37669320›Full record

ReviewBrain : a journal of neurology2024

Neuromelanin-sensitive MRI as a promising biomarker of catecholamine function.

Paula Trujillo, Megan A Aumann, Daniel O Claassen

Open access · bronzeAbstract readReview
In one paragraph

Review in Brain : a journal of neurology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
11.3field-weighted citation impact, top 1% 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Cortical synchrony is reduced in Alzheimer's disease and relates to arousal state.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  11. Article
  12. Article
  13. Article
  14. Utility of Locus Coeruleus Signal Intensity on High-resolution T1-weighted MR Imaging with Magnetization Transfer for Differentiating Parkinson's Disease from Atypical Parkinsonism.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2026
    Article
  15. Locus coeruleus degeneration is associated with orthostatic hypotension in Parkinson's disease and multiple system atrophy.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Article
  16. Review
  17. Article
  18. Response to: Neuromelanin?Brain communications · 2026
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Paula TrujilloDepartment of Neurology, Vanderbilt University Medical Center, Nashville, TN 37212, USA.ORCID 0000-0001-9753-7071
Megan A AumannDepartment of Neurology, Vanderbilt University Medical Center, Nashville, TN 37212, USA.
Daniel O ClaassenDepartment of Neurology, Vanderbilt University Medical Center, Nashville, TN 37212, USA.
Vanderbilt University Medical Center · US

Funding

Overall: Eunice Kennedy Shriver Intellectual and Developmental Disabilities Research Center at VanderbiltP50HD103537 · NICHD · VANDERBILT UNIVERSITY MEDICAL CENTER · PI Jeffrey L Neul · 2020 to 2026
$10.3M
Quantitative Imaging of Brain Glymphatic Function in HumansR01AG062574 · NIA · VANDERBILT UNIVERSITY MEDICAL CENTER · PI CLAASSEN, DANIEL OLIVER, DONAHUE, MANUS J · 2020 to 2024
$3.0M
Biological Determinants of Impulsivity in Parkinson's DiseaseR01NS097783 · NINDS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI CLAASSEN, DANIEL OLIVER · 2016 to 2020
$2.2M
Regulating BDNF Action in Postnatal Development.R01NS064114 · NINDS · WEILL MEDICAL COLL OF CORNELL UNIV · PI HEMPSTEAD, BARBARA L · 2009 to 2013
$1.9M
Expanding Mentorship and Neuroimaging Expertise in Patient-Oriented Studies of Brain, Behavior, and Age-Related DementiasK24AG064114 · NIA · VANDERBILT UNIVERSITY MEDICAL CENTER · PI CLAASSEN, DANIEL OLIVER · 2020 to 2024
$855k
NIA NIH HHS K24 AG064114NIA NIH HHS R01 AG062574NICHD NIH HHS P50 HD103537NINDS NIH HHS 1K24AG064114NINDS NIH HHS R01 NS097783
6 · The paper itself

Abstract

Disruptions to dopamine and noradrenergic neurotransmission are noted in several neurodegenerative and psychiatric disorders. Neuromelanin-sensitive (NM)-MRI offers a non-invasive approach to visualize and quantify the structural and functional integrity of the substantia nigra and locus coeruleus. This method may aid in the diagnosis and quantification of longitudinal changes of disease and could provide a stratification tool for predicting treatment success of pharmacological interventions targeting the dopaminergic and noradrenergic systems. Given the growing clinical interest in NM-MRI, understanding the contrast mechanisms that generate this signal is crucial for appropriate interpretation of NM-MRI outcomes and for the continued development of quantitative MRI biomarkers that assess disease severity and progression. To date, most studies associate NM-MRI measurements to the content of the neuromelanin pigment and/or density of neuromelanin-containing neurons, while recent studies suggest that the main source of the NM-MRI contrast is not the presence of neuromelanin but the high-water content in the dopaminergic and noradrenergic neurons. In this review, we consider the biological and physical basis for the NM-MRI contrast and discuss a wide range of interpretations of NM-MRI. We describe different acquisition and image processing approaches and discuss how these methods could be improved and standardized to facilitate large-scale multisite studies and translation into clinical use. We review the potential clinical applications in neurological and psychiatric disorders and the promise of NM-MRI as a biomarker of disease, and finally, we discuss the current limitations of NM-MRI that need to be addressed before this technique can be utilized as a biomarker and translated into clinical practice and offer suggestions for future research.

Indexed as

CatecholaminesMagnetic Resonance ImagingBiomarkersDopamineHumansMelaninsSubstantia NigraBiomarkersCatecholaminesDopamineMelaninsneuromelanincatecholaminedopamineMRIneuromelaninnoradrenaline

Identifiers

PMID37669320
PMCPMC10834262
OpenAlexW4386453134

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.