Evidence map›Paper›PMID 34751136›Full record

SynthesisAgeing research reviews2021

Mitochondrial dysfunction, oxidative stress, neuroinflammation, and metabolic alterations in the progression of Alzheimer's disease: A meta-analysis of in vivo magnetic resonance spectroscopy studies.

Tao Song, Xiaopeng Song, Chenyawen Zhu, Regan Patrick, Miranda Skurla, Isabella Santangelo, Morgan Green, David Harper, Boyu Ren, Brent P Forester and 2 more

Open access · greenAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in Ageing research reviews, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 185 papers, 10 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
185citing papers in PubMed, 10 pooled it
20.8field-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

185 citing papers in PubMed, 10 syntheses or guidelines pooled it, 296 citations in OpenAlex.

  1. Pooled it
  2. Efficacy and possible mechanism ofFrontiers in pharmacology · 2026
    Pooled it
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  9. Systematic review ofFrontiers in aging neuroscience · 2023
    Pooled it
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  11. Trial
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  14. Review
  15. Unveiling the pathogenesis and therapeutic strategies of Alzheimer's disease through cuproptosis.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026
    Review
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  20. Article

125 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

12 authors at 3 institutions in 1 country.

Tao SongPsychotic Disorders Division, McLean Hospital, 02478, USA; McLean Imaging Center, McLean Hospital, 02478, USA; Harvard Medical School, Boston, Massachusetts 02115, USA.
Xiaopeng SongPsychotic Disorders Division, McLean Hospital, 02478, USA; McLean Imaging Center, McLean Hospital, 02478, USA; Harvard Medical School, Boston, Massachusetts 02115, USA.
Chenyawen ZhuPsychotic Disorders Division, McLean Hospital, 02478, USA; McLean Imaging Center, McLean Hospital, 02478, USA.
Regan PatrickDivision of Geriatric Psychiatry, McLean Hospital, 02478, USA; Department of Neuropsychology, McLean Hospital, 02478, USA; Harvard Medical School, Boston, Massachusetts 02115, USA.
Miranda SkurlaDivision of Geriatric Psychiatry, McLean Hospital, 02478, USA.
Isabella SantangeloDivision of Geriatric Psychiatry, McLean Hospital, 02478, USA.
Morgan GreenDivision of Geriatric Psychiatry, McLean Hospital, 02478, USA.
David HarperDivision of Geriatric Psychiatry, McLean Hospital, 02478, USA; Harvard Medical School, Boston, Massachusetts 02115, USA.
Boyu RenHarvard Medical School, Boston, Massachusetts 02115, USA.
Brent P ForesterDivision of Geriatric Psychiatry, McLean Hospital, 02478, USA; Harvard Medical School, Boston, Massachusetts 02115, USA.
Dost ÖngürPsychotic Disorders Division, McLean Hospital, 02478, USA; Harvard Medical School, Boston, Massachusetts 02115, USA.
Fei DuPsychotic Disorders Division, McLean Hospital, 02478, USA; McLean Imaging Center, McLean Hospital, 02478, USA; Harvard Medical School, Boston, Massachusetts 02115, USA. Electronic address: fdu@mclean.harvard.edu.
McLean Hospital · USHarvard University · USImaging Center · US

Funding

Randomized controlled trial of enhanced coordinated specialty care (CSC 2.0)P50MH115846 · NIMH · MCLEAN HOSPITAL · PI MIGUEL HERNAN, JOHN HSU · 2019 to 2026
$16.9M
Early Life Stress and Depression: Molecular and Functional Imaging ApproachesR01MH095809 · NIMH · MCLEAN HOSPITAL · PI DU, FEI, PIZZAGALLI, DIEGO A · 2012 to 2024
$6.4M
Effects of Orally Administered Nicotinamide Riboside on Bioenergetic Metabolism, Oxidative Stress and Cognition in Mild Cognitive Impairment and Mild Alzheimer's DementiaR01AG066670 · NIA · MCLEAN HOSPITAL · PI DU, FEI, FORESTER, BRENT PETER · 2020 to 2024
$4.0M
Molecular Mechanisms and Biomarkers for Disease Progression from Prodrome to Early PsychosisR01MH114982 · NIMH · MCLEAN HOSPITAL · PI DU, FEI, ONGUR, DOST · 2019 to 2023
$2.4M
Research and Mentoring on Brain and Peripheral Bioenergetics in SchizophreniaK24MH104449 · NIMH · MCLEAN HOSPITAL · PI ONGUR, DOST · 2015 to 2019
$749k
NIA NIH HHS R01 AG066670NIMH NIH HHS K24 MH104449NIMH NIH HHS P50 MH115846NIMH NIH HHS R01 MH095809NIMH NIH HHS R01 MH114982
6 · The paper itself

Abstract

Accumulating evidence demonstrates that metabolic changes in the brain associated with neuroinflammation, oxidative stress, and mitochondrial dysfunction play an important role in the pathophysiology of mild cognitive impairment (MCI) and Alzheimer's disease (AD). However, the neural signatures associated with these metabolic alterations and underlying molecular mechanisms are still elusive. Accordingly, we reviewed the literature on in vivo human brain

Indexed as

Alzheimer DiseaseCognitive DysfunctionDisease ProgressionHumansMagnetic Resonance SpectroscopyMitochondriaNeuroinflammatory DiseasesOxidative StressAlzheimer’s diseaseMagnetic resonance spectroscopyMild cognitive impairmentMitochondrial dysfunctionNeuroinflammationOxidative stress

Identifiers

PMID34751136
PMCPMC8662951
OpenAlexW3209041513

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.