Evidence map›Paper›PMID 21791622›Full record

Trial reportAmerican journal of physiology. Endocrinology and metabolism2011

Simultaneous measurement of glucose transport and utilization in the human brain.

Alexander A Shestov, Uzay E Emir, Anjali Kumar, Pierre-Gilles Henry, Elizabeth R Seaquist, Gülin Öz

Abstract readClinical Trial
In one paragraph

Trial report in American journal of physiology. Endocrinology and metabolism, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
–field-weighted citation impact
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. Dynamic glucose-enhanced MRI in brain tumors.Magma (New York, N.Y.) · 2026
    Review
  2. Higher fasting brain glucose is associated with lower gray matter volume in healthy adults.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Article
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  6. Observational
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  13. Metastatic triple negative breast cancer adapts its metabolism to destination tissues while retaining key metabolic signatures.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  14. Review
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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

6 authors.

Alexander A ShestovCenter for Magnetic Resonance Research, Department of Radiology, University of Minnesota, Minneapolis, Minnesota, USA.
Uzay E Emir
Anjali Kumar
Pierre-Gilles Henry
Elizabeth R Seaquist
Gülin Öz

Funding

YOUTH DRUG ABUSE, ADHD, AND RELATED DISRUPTIVE DISORDERSM01RR000400 · NCRR · UNIVERSITY OF MINNESOTA TWIN CITIES · PI BACHANOVA, VERONIKA S · 1985 to 2009
$33.7M
ZOOMED FUNCT IMAGING IN HUMAN BRAIN AT 7T W/ SIMULT HIGH SPATIAL &TEMPORAL RESP41RR008079 · NCRR · UNIVERSITY OF MINNESOTA TWIN CITIES · PI VAN DE MOORTELE, PIERRE-FRANCOIS · 1993 to 2011
$16.3M
Neuroscience Cores For MR Studies of the BrainP30NS057091 · NINDS · UNIVERSITY OF MINNESOTA · PI UGURBIL, KAMIL · 2006 to 2011
$8.5M
Measurement of glucose homestatsis in human brain by NMRR01NS035192 · NINDS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI OZ, GULIN, SEAQUIST, ELIZABETH R. · 1997 to 2022
$8.3M
DYNAMIC MRI AND MRS STUDIES OF FOCAL NEURAL ACTIVATIONR01NS038672 · NINDS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI HENRY, PIERRE-GILLES · 2000 to 2011
$3.8M
4 Tesla Human MRI/MRS Console UpgradeS10RR023730 · NCRR · UNIVERSITY OF MINNESOTA · PI GARWOOD, MICHAEL G · 2007 to 2007
$500k
NCRR NIH HHS M01-RR-00400NCRR NIH HHS P41 RR-008079NCRR NIH HHS S10-RR-023730NINDS NIH HHS P30-NS-057091NINDS NIH HHS R01 NS035192NINDS NIH HHS R01-NS-035192NINDS NIH HHS R01-NS-38672
6 · The paper itself

Abstract

Glucose is the primary fuel for brain function, and determining the kinetics of cerebral glucose transport and utilization is critical for quantifying cerebral energy metabolism. The kinetic parameters of cerebral glucose transport, K(M)(t) and V(max)(t), in humans have so far been obtained by measuring steady-state brain glucose levels by proton ((1)H) NMR as a function of plasma glucose levels and fitting steady-state models to these data. Extraction of the kinetic parameters for cerebral glucose transport necessitated assuming a constant cerebral metabolic rate of glucose (CMR(glc)) obtained from other tracer studies, such as (13)C NMR. Here we present new methodology to simultaneously obtain kinetic parameters for glucose transport and utilization in the human brain by fitting both dynamic and steady-state (1)H NMR data with a reversible, non-steady-state Michaelis-Menten model. Dynamic data were obtained by measuring brain and plasma glucose time courses during glucose infusions to raise and maintain plasma concentration at ∼17 mmol/l for ∼2 h in five healthy volunteers. Steady-state brain vs. plasma glucose concentrations were taken from literature and the steady-state portions of data from the five volunteers. In addition to providing simultaneous measurements of glucose transport and utilization and obviating assumptions for constant CMR(glc), this methodology does not necessitate infusions of expensive or radioactive tracers. Using this new methodology, we found that the maximum transport capacity for glucose through the blood-brain barrier was nearly twofold higher than maximum cerebral glucose utilization. The glucose transport and utilization parameters were consistent with previously published values for human brain.

Indexed as

AdolescentAdultBiological TransportBlood-Brain BarrierBrainBrain ChemistryFemaleGlucoseHumansMagnetic Resonance ImagingMagnetic Resonance SpectroscopyMaleMiddle AgedModels, BiologicalProtonsReproducibility of ResultsGlucoseProtons

Identifiers

PMID21791622
PMCPMC3213999

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.