Evidence map›Paper›PMID 22006551›Full record

ArticleJournal of magnetic resonance imaging : JMRI2011

Measurement of human skeletal muscle oxidative capacity by 31P-MR spectroscopy: a cross-validation with in vitro measurements.

Ian R Lanza, Sumit Bhagra, K Sreekumaran Nair, John D Port

Open access · bronzeAbstract read
In one paragraph

Article in Journal of magnetic resonance imaging : JMRI, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
6.0field-weighted citation impact, top 4% 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

62 citing papers in PubMed, 98 citations in OpenAlex.

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  16. Quantitative Assessment of Peripheral Oxidative Metabolism With a New DynamicJournal of magnetic resonance imaging : JMRI · 2024
    Article
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2 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

4 authors at 1 institution in 1 country.

Ian R LanzaDivision of Endocrinology, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA.
Sumit Bhagra
K Sreekumaran Nair
John D Port
Mayo Clinic · US

Funding

MAYO CLINIC CENTER FOR TRANSLATIONAL SCIENCE ACTIVITIESUL1RR024150 · NCRR · MAYO CLINIC ROCHESTER · PI RIZZA, ROBERT A. · 2006 to 2011
$66.4M
Mayo Clinic Center for Translational Science ActivitiesKL2RR024151 · NCRR · MAYO CLINIC ROCHESTER · PI RIZZA, ROBERT A. · 2006 to 2011
$15.3M
IN VIVO REGULATION OF PROTEIN TURNOVER BY HORMONESR01DK041973 · NIDDK · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI NAIR, K SREEKUMARAN · 1989 to 2014
$7.3M
PURCHASE OF A HIGH FIELD NMR SPECTROMETERS10RR002415 · NCRR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SHAFER, JULES ALAN · 1985 to 1985
–
NCRR NIH HHS KL2RR02415NCRR NIH HHS KL2 RR024151NCRR NIH HHS UL1 RR024150NCRR NIH HHS UL1-RR-025150NIDDK NIH HHS R01 DK041973NIDDK NIH HHS R01DK4197
6 · The paper itself

Abstract

purposeTo cross-validate skeletal muscle oxidative capacity measured by (31)P-MR spectroscopy with in vitro measurements of oxidative capacity in mitochondria isolated from muscle biopsies of the same muscle group in 18 healthy adults. MATERIALS AND

methodsOxidative capacity in vivo was determined from PCr recovery kinetics following a 30-s maximal isometric knee extension. State 3 respiration was measured in isolated mitochondria using high-resolution respirometry. A second cohort of 10 individuals underwent two (31)P-MRS testing sessions to assess the test-retest reproducibility of the method.

resultsOverall, the in vivo and in vitro methods were well-correlated (r = 0.66-0.72) and showed good agreement by Bland Altman plots. Excellent reproducibility was observed for the PCr recovery rate constant (CV = 4.6%; ICC = 0.85) and calculated oxidative capacity (CV = 3.4%; ICC = 0.83).

conclusionThese results indicate that (31)P-MRS corresponds well with gold-standard in vitro measurements and is highly reproducible.

Indexed as

AdultBiopsyCohort StudiesFemaleHumansHydrogen-Ion ConcentrationIn Vitro TechniquesKneeMagnetic Resonance SpectroscopyMaleMiddle AgedMitochondriaMusclesMuscle, SkeletalOxidative StressOxygenOxygenPhosphocreatinephosphocreatininePhosphorus Isotopes

Identifiers

PMID22006551
PMCPMC3201762
OpenAlexW2078374194

What OpenQuestion holds

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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.