Evidence map›Paper›PMID 30796187›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Neuromelanin-sensitive MRI as a noninvasive proxy measure of dopamine function in the human brain.

Clifford M Cassidy, Fabio A Zucca, Ragy R Girgis, Seth C Baker, Jodi J Weinstein, Madeleine E Sharp, Chiara Bellei, Alice Valmadre, Nora Vanegas, Lawrence S Kegeles and 6 more

2 registry-linked trialsOpen access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 141 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
141citing papers in PubMed, 4 pooled it
17.4field-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.

NCT05487885 phase4completednot on this mapstarted 2022, after this paper: background citation

Anhedonia, Development, and Emotions: Phenotyping and Therapeutics (ADEPT) Study

TypeinterventionalSponsorErika ForbesRan2022 to 2025Enrolled123ConditionsDepression, AnhedoniaArmsContinuous theta burst stimulation (cTBS), Positive Affect Training, Ketamine Injectable Solution
NCT05890768 phase4withdrawnnot on this mapstarted 2023, after this paper: background citation

The Relationship Between the Efficacy of Lumateperone and Central Glutamate and Dopaminergic Metabolism: A Comparison With Risperidone in First Episode Psychosis

TypeinterventionalSponsorUniversity of New MexicoRan2023 to 2024Enrolled0ConditionsPsychosisArmsLumateperone, Risperidone
3 · Its place in the literature

Who cites it

141 citing papers in PubMed, 4 syntheses or guidelines pooled it, 231 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. 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
    Trial
  6. An etiological approach to psychosis: potential benefits for treatment, research and prevention.World psychiatry : official journal of the World Psychiatric Association (WPA) · 2026
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Multiscale characterization of the human claustrum from histology to MRI.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  15. The Noradrenergic Brain in Parkinson's Disease.Current neurology and neuroscience reports · 2026
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Associations of neuromelanin in the substantia nigra with antipsychotic response in schizophrenia.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article

81 more citing papers are in PubMed but not listed here.

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

16 authors at 3 institutions in 3 countries.

Clifford M CassidyDepartment of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York, NY 10032; clifford.cassidy@theroyal.ca horgag@nyspi.columbia.edu.
Fabio A ZuccaInstitute of Biomedical Technologies, National Research Council of Italy, Segrate, 20090 Milan, Italy.ORCID 0000-0003-1230-1129
Ragy R GirgisDepartment of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York, NY 10032.
Seth C BakerDepartment of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York, NY 10032.
Jodi J WeinsteinDepartment of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York, NY 10032.
Madeleine E SharpDepartment of Neurology, Columbia University Medical Center, New York, NY 10032.
Chiara BelleiInstitute of Biomedical Technologies, National Research Council of Italy, Segrate, 20090 Milan, Italy.
Alice ValmadreInstitute of Biomedical Technologies, National Research Council of Italy, Segrate, 20090 Milan, Italy.
Nora VanegasDepartment of Neurology, Columbia University Medical Center, New York, NY 10032.
Lawrence S KegelesDepartment of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York, NY 10032.
Gary BrucatoDepartment of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York, NY 10032.
Un Jung KangDepartment of Neurology, Columbia University Medical Center, New York, NY 10032.
David SulzerDepartment of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York, NY 10032.
Luigi ZeccaDepartment of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York, NY 10032.
Anissa Abi-DarghamDepartment of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York, NY 10032.
Guillermo HorgaDepartment of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York, NY 10032; clifford.cassidy@theroyal.ca horgag@nyspi.columbia.edu.
Columbia University Irving Medical Center · USInstitute of Biomedical Technologies · ITUniversity of Ottawa · CA

Funding

Dopamine Dysfunction in SchizophreniaP50MH086404 · NIMH · NEW YORK STATE PSYCHIATRIC INSTITUTE DBA RESEARCH FOUNDATION FOR MENTAL HYGIENE, INC · PI ABI-DARGHAM, ANISSA · 2010 to 2014
$9.4M
The Dopamine Synapse and Associative LearningR01DA007418 · NIDA · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI David Sulzer · 1999 to 2026
$9.4M
The striatal cholinergic interneurons in Parkinson's disease and treatmentR01NS101982 · NINDS · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI KANG, UN JUNG · 2017 to 2020
$1.8M
Towards an Integrated Understanding of Neurotransmitter Dysfunction in Schizophrenia: a Multimodal MRI StudyK23MH115291 · NIMH · STATE UNIVERSITY NEW YORK STONY BROOK · PI WEINSTEIN, JODI JAY · 2018 to 2024
$1.2M
Translational Neuroscience of Functional Connectivity in SchizophreniaK01MH107763 · NIMH · STATE UNIVERSITY NEW YORK STONY BROOK · PI VAN SNELLENBERG, JARED XAVIER · 2015 to 2019
$961k
Neural mechanisms of sensory predictions in schizophrenia with hallucinationsK23MH101637 · NIMH · NEW YORK STATE PSYCHIATRIC INSTITUTE DBA RESEARCH FOUNDATION FOR MENTAL HYGIENE, INC · PI HORGA, GUILLERMO · 2014 to 2018
$862k
Probing dopamine D2 receptor trafficking in schizophreniaR21MH099509 · NIMH · NEW YORK STATE PSYCHIATRIC INSTITUTE DBA RESEARCH FOUNDATION FOR MENTAL HYGIENE, INC · PI ABI-DARGHAM, ANISSA · 2013 to 2014
$455k
Plasticity of bridge collaterals in Parkinonian state and treatmentR03NS096494 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI KANG, UN JUNG · 2016 to 2017
$160k
NIDA NIH HHS R01 DA007418NIMH NIH HHS K23 MH101637NIMH NIH HHS K23 MH115291NIMH NIH HHS P50 MH086404NIMH NIH HHS R21 MH099509NINDS NIH HHS R01 NS101982NINDS NIH HHS R03 NS096494
6 · The paper itself

Abstract

Neuromelanin-sensitive MRI (NM-MRI) purports to detect the content of neuromelanin (NM), a product of dopamine metabolism that accumulates with age in dopamine neurons of the substantia nigra (SN). Interindividual variability in dopamine function may result in varying levels of NM accumulation in the SN; however, the ability of NM-MRI to measure dopamine function in nonneurodegenerative conditions has not been established. Here, we validated that NM-MRI signal intensity in postmortem midbrain specimens correlated with regional NM concentration even in the absence of neurodegeneration, a prerequisite for its use as a proxy for dopamine function. We then validated a voxelwise NM-MRI approach with sufficient anatomical sensitivity to resolve SN subregions. Using this approach and a multimodal dataset of molecular PET and fMRI data, we further showed the NM-MRI signal was related to both dopamine release in the dorsal striatum and resting blood flow within the SN. These results suggest that NM-MRI signal in the SN is a proxy for function of dopamine neurons in the nigrostriatal pathway. As a proof of concept for its clinical utility, we show that the NM-MRI signal correlated to severity of psychosis in schizophrenia and individuals at risk for schizophrenia, consistent with the well-established dysfunction of the nigrostriatal pathway in psychosis. Our results indicate that noninvasive NM-MRI is a promising tool that could have diverse research and clinical applications to investigate in vivo the role of dopamine in neuropsychiatric illness.

Indexed as

Magnetic Resonance ImagingAdultAgedAged, 80 and overBrainContrast MediaDopamineFemaleHumansMaleMelaninsMesencephalonMiddle AgedPostmortem ChangesPsychotic DisordersReproducibility of ResultsContrast MediaDopamineMelaninsneuromelanindopaminemagnetic resonance imagingneuromelaninParkinson’s diseaseschizophrenia

Identifiers

PMID30796187
PMCPMC6421437
OpenAlexW2915476106

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.