Evidence map›Paper›PMID 30760413›Full record

ArticleSchizophrenia research2019

Brain insulin resistance and altered brain glucose are related to memory impairments in schizophrenia.

S Andrea Wijtenburg, Dimitrios Kapogiannis, Stephanie A Korenic, Roger J Mullins, Joyce Tran, Frank E Gaston, Shuo Chen, Maja Mustapic, L Elliot Hong, Laura M Rowland

Open access · greenAbstract read
In one paragraph

Article in Schizophrenia research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
4.6field-weighted citation impact, top 5% 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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 69 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Premature aging in serious mental illness.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Review
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  15. A New Window to the Brain: Exosomes as a Promising Approach to Understand Mechanisms of Cognitive Deficits Associated With Obstructive Sleep Apnea.The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2024
    Article
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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

10 authors at 4 institutions in 1 country.

S Andrea WijtenburgMaryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA. Electronic address: awijtenburg@som.umaryland.edu.
Dimitrios KapogiannisLaboratory of Neurosciences, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
Stephanie A KorenicMaryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA.
Roger J MullinsLaboratory of Neurosciences, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
Joyce TranLaboratory of Neurosciences, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
Frank E GastonMaryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA.
Shuo ChenMaryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA.
Maja MustapicLaboratory of Neurosciences, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
L Elliot HongMaryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA.
Laura M RowlandMaryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA.
University of Maryland, Baltimore · USNational Institutes of Health · USInstitute on Aging · USNational Institute on Aging · US

Funding

Studies in Dementia and Neurodegenerative DiseasesZIAAG000975 · NIA · NATIONAL INSTITUTE ON AGING · PI KAPOGIANNIS, DIMITRIOS · 2009 to 2025
$31.5M
Neuroimaging, Behavioral Neurology and Development of 3T MRI projectsZIAAG000966 · NIA · NATIONAL INSTITUTE ON AGING · PI KAPOGIANNIS, DIMITRIOS · 2010 to 2025
$6.9M
Multimodal neuroimaging study of relational learning in schizophreniaR01MH094520 · NIMH · UNIVERSITY OF MARYLAND BALTIMORE · PI ROWLAND, LAURA M · 2012 to 2016
$1.9M
NIMH NIH HHS R01 MH094520
6 · The paper itself

Abstract

Memory is robustly impaired in schizophrenia (SZ) and related to functional outcome. Memory dysfunction has been shown to be related to altered brain glucose metabolism and brain insulin resistance in animal models and human studies of Alzheimer's disease. In this study, differences in brain glucose using magnetic resonance spectroscopy (MRS) and blood Extracellular Vesicle (EV) biomarkers of neuronal insulin resistance (i.e. Akt and signaling effectors) between SZ and controls were investigated, as well as whether these measures were related to memory impairments. Neuronal insulin resistance biomarkers showed a trend for being lower in SZ compared to controls, and memory measures were lower in SZ compared to controls. Occipital cortex glucose was higher in SZ compared to controls indicating lower brain glucose utilization. Linear regression analyses revealed significant relationships between neuronal insulin resistance biomarkers, memory measures, and brain glucose. More specifically, p70S6K, an insulin signaling effector, was related to verbal learning and brain MRS glucose in the SZ group. For the first time, we show that memory impairments in SZ may be related to brain glucose and brain insulin resistance. These data suggest that brain insulin resistance may play a role in the pathophysiology of learning and memory dysfunction in SZ.

Indexed as

Schizophrenic PsychologyAdultBlood GlucoseBrainBrief Psychiatric Rating ScaleCorrelation of DataFemaleHumansInsulin ResistanceLearningMaleMemory DisordersMental RecallMiddle AgedNeuropsychological TestsPsychometricsBlood GlucoseBrain insulin resistanceEVsExtracellular vesiclesGlucoseMagnetic resonance spectroscopyMemorySchizophrenia

Identifiers

PMID30760413
PMCPMC6656556
OpenAlexW2914155249

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.