Evidence map›Paper›PMID 33120242›Full record

ArticleJournal of affective disorders2021

Neurotransmitters and Neurometabolites in Late-Life Depression: A Preliminary Magnetic Resonance Spectroscopy Study at 7T.

Gwenn S Smith, Georg Oeltzschner, Neda F Gould, Jeannie-Marie S Leoutsakos, Najilla Nassery, Jin Hui Joo, Michael A Kraut, Richard A E Edden, Peter B Barker, S Andrea Wijtenburg and 2 more

Open access · greenAbstract read
In one paragraph

Article in Journal of affective disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 6 pooled it
2.2field-weighted citation impact, top 9% 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

19 citing papers in PubMed, 6 syntheses or guidelines pooled it, 33 citations in OpenAlex.

  1. Pooled it
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  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Article
  8. Review
  9. Leveraging ultra-high field (7T) MRI in psychiatric research.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Review
  10. Article
  11. Age and visual cortex inhibition: a TMS-MRS study.Cerebral cortex (New York, N.Y. : 1991) · 2024
    Article
  12. Review
  13. Article
  14. Review
  15. Neuroimaging at 7 Tesla: a pictorial narrative review.Quantitative imaging in medicine and surgery · 2022
    Review
  16. Article
  17. Article
  18. Review
  19. 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

12 authors at 3 institutions in 1 country.

Gwenn S SmithDepartment of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, United States; Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, United States. Electronic address: gsmith95@jhmi.edu.
Georg OeltzschnerRussell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, United States; F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, United States.
Neda F GouldDepartment of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, United States.
Jeannie-Marie S LeoutsakosDepartment of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, United States.
Najilla NasseryDivision of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States.
Jin Hui JooDepartment of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, United States.
Michael A KrautRussell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, United States; F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, United States.
Richard A E EddenRussell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, United States; F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, United States.
Peter B BarkerRussell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, United States; F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, United States.
S Andrea WijtenburgDepartment of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, United States.
Laura M RowlandDepartment of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, United States.
Clifford I WorkmanDepartment of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, United States.
Johns Hopkins University · USKennedy Krieger Institute · USUniversity of Maryland, Baltimore · US

Funding

Institute for Clinical and Translational ResearchUL1TR001079 · NCATS · JOHNS HOPKINS UNIVERSITY · PI FORD, DANIEL ERNEST · 2013 to 2017
$60.1M
QAQC Johns Hopkins Institute for Clinical and Translational ResearchUL1TR003098 · NCATS · JOHNS HOPKINS UNIVERSITY · PI FORD, DANIEL ERNEST · 2019 to 2023
$57.7M
Longitudinal Molecular Imaging of Neuropathology and Serotonin in Mild Cognitive ImpairmentR01AG059390 · NIA · JOHNS HOPKINS UNIVERSITY · PI SMITH, GWENN S · 2018 to 2022
$4.8M
Geriatric Depression: PET Studies of Pathophysiology and Treatment ResponseR01MH086881 · NIMH · JOHNS HOPKINS UNIVERSITY · PI SMITH, GWENN S · 2010 to 2013
$2.7M
Longitudinal imaging of neuropsychiatric symptoms in mild cognitive impairmentR01AG041633 · NIA · JOHNS HOPKINS UNIVERSITY · PI SMITH, GWENN S · 2011 to 2015
$2.6M
PET Studies of Serotonin and Amyloid in MCIR01AG038893 · NIA · JOHNS HOPKINS UNIVERSITY · PI SMITH, GWENN S · 2011 to 2014
$2.4M
Serotonin Modulation in Geriatric DepressionR01MH064823 · NIMH · JOHNS HOPKINS UNIVERSITY · PI SMITH, GWENN S. · 2003 to 2006
$1.9M
Towards a comprehensive neurometabolic profile in patients with mild cognitive impairment.K99AG062230 · NIA · JOHNS HOPKINS UNIVERSITY · PI OELTZSCHNER, GEORG · 2019 to 2020
$171k
NCATS NIH HHS UL1 TR001079NCATS NIH HHS UL1 TR003098NIA NIH HHS K99 AG062230NIA NIH HHS R01 AG038893NIA NIH HHS R01 AG041633NIA NIH HHS R01 AG059390NIMH NIH HHS R01 MH064823NIMH NIH HHS R01 MH086881
6 · The paper itself

Abstract

backgroundMagnetic resonance spectroscopy (MRS) methods have quantified changes in levels of neurotransmitters and neurometabolites in patients with major depression across the lifespan. The application of 7T field strengths and greater have not been a major focus of study in patients with late-life depression (LLD).

methodsNine LLD patients who met DSM-IV criteria for a current major depressive episode and nine non-depressed, healthy, age-matched controls underwent clinical and neuropsychological assessment and single-voxel 7T

resultsBaseline Glu/tCr levels were not significantly different between groups. Decreased Glu/tCr levels after Citalopram treatment were observed in a subset of LLD patients. Exploratory analyses showed that LLD patients had lower NAA levels in the PCC relative to controls. Higher levels of ml in the LLD patients relative to the controls and decreases after Citalopram treatment had large effect sizes but were not statistically significant. Further, decreases in PCC Glu/tCr and increases in ACC GSH/tCr were associated with improvement in depressive symptoms. LIMITATIONS: Sample size.

conclusionsThese preliminary results suggest a role of neurochemicals and neurometabolites in the neurobiology of LLD and antidepressant treatment response.

Indexed as

Major Depressive DisorderAspartic AcidCreatineDepressionGlutamic AcidGyrus CinguliHumansInfantMagnetic Resonance ImagingMagnetic Resonance SpectroscopyNeurotransmitter AgentsProton Magnetic Resonance SpectroscopyAspartic AcidCreatineGlutamic AcidNeurotransmitter AgentsCitalopramdepressionlate-lifemagnetic resonance spectroscopy

Identifiers

PMID33120242
PMCPMC8606178
OpenAlexW3092556648

What OpenQuestion holds

Textmetadata
LicenceTDM
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.