Evidence map›Paper›PMID 25795215›Full record

ArticleDiabetes2015

Increasing Pyruvate Dehydrogenase Flux as a Treatment for Diabetic Cardiomyopathy: A Combined 13C Hyperpolarized Magnetic Resonance and Echocardiography Study.

Lydia M Le Page, Oliver J Rider, Andrew J Lewis, Vicky Ball, Kieran Clarke, Edvin Johansson, Carolyn A Carr, Lisa C Heather, Damian J Tyler

Open access · bronzeAbstract read
In one paragraph

Article in Diabetes, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 1 pooled it
6.4field-weighted citation impact, top 2% 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

72 citing papers in PubMed, 1 synthesis or guideline pooled it, 127 citations in OpenAlex.

  1. Pooled it
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  12. The need to redefine diabetic cardiomyopathy as a unique clinical entity that requires pharmacotherapy.Journal of pharmacy & pharmaceutical sciences : a publication of the Canadian Society for Pharmaceutical Sciences, Societe canadienne des sciences pharmaceutiques · 2025
    Article
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  15. First in-human evaluation of [1-Magnetic resonance in medicine · 2024
    Article
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  17. Post-translational modifications in diabetic cardiomyopathy.Journal of cellular and molecular medicine · 2024
    Review
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  19. Review
  20. Article

12 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

9 authors at 2 institutions in 2 countries.

Lydia M Le PageDepartment of Physiology, Anatomy and Genetics, University of Oxford, Oxford, U.K.
Oliver J RiderDivision of Cardiovascular Medicine, University of Oxford, Oxford, U.K.
Andrew J LewisDivision of Cardiovascular Medicine, University of Oxford, Oxford, U.K.
Vicky BallDepartment of Physiology, Anatomy and Genetics, University of Oxford, Oxford, U.K.
Kieran ClarkeDepartment of Physiology, Anatomy and Genetics, University of Oxford, Oxford, U.K.
Edvin JohanssonAstraZeneca, Mölndal, Sweden.
Carolyn A CarrDepartment of Physiology, Anatomy and Genetics, University of Oxford, Oxford, U.K.
Lisa C HeatherDepartment of Physiology, Anatomy and Genetics, University of Oxford, Oxford, U.K.
Damian J TylerDepartment of Physiology, Anatomy and Genetics, University of Oxford, Oxford, U.K. damian.tyler@dpag.ox.ac.uk.
University of Oxford · GBAstraZeneca (Sweden) · SE

Funding

British Heart Foundation FS/10/002/28078British Heart Foundation FS10/002/28078British Heart Foundation FS/14/17/30634British Heart Foundation PG/13/34/30216British Heart Foundation RG/11/9/28921Diabetes UK 11/0004175Medical Research Council G0601490
6 · The paper itself

Abstract

Although diabetic cardiomyopathy is widely recognized, there are no specific treatments available. Altered myocardial substrate selection has emerged as a candidate mechanism behind the development of cardiac dysfunction in diabetes. As pyruvate dehydrogenase (PDH) activity appears central to the balance of substrate use, we aimed to investigate the relationship between PDH flux and myocardial function in a rodent model of type 2 diabetes and to explore whether or not increasing PDH flux, with dichloroacetate, would restore the balance of substrate use and improve cardiac function. All animals underwent in vivo hyperpolarized [1-(13)C]pyruvate magnetic resonance spectroscopy and echocardiography to assess cardiac PDH flux and function, respectively. Diabetic animals showed significantly higher blood glucose levels (10.8 ± 0.7 vs. 8.4 ± 0.5 mmol/L), lower PDH flux (0.005 ± 0.001 vs. 0.017 ± 0.002 s(-1)), and significantly impaired diastolic function (transmitral early diastolic peak velocity/early diastolic myocardial velocity ratio [E/E'] 12.2 ± 0.8 vs. 20 ± 2), which are in keeping with early diabetic cardiomyopathy. Twenty-eight days of treatment with dichloroacetate restored PDH flux to normal levels (0.018 ± 0.002 s(-1)), reversed diastolic dysfunction (E/E' 14 ± 1), and normalized blood glucose levels (7.5 ± 0.7 mmol/L). The treatment of diabetes with dichloroacetate therefore restored the balance of myocardial substrate selection, reversed diastolic dysfunction, and normalized blood glucose levels. This suggests that PDH modulation could be a novel therapy for the treatment and/or prevention of diabetic cardiomyopathy.

Indexed as

AnimalsBlood GlucoseDiabetes Mellitus, Type 2Diabetic CardiomyopathiesDichloroacetic AcidEchocardiographyInsulinLipidsMagnetic Resonance SpectroscopyMalePyruvate Dehydrogenase ComplexRatsRats, WistarBlood GlucoseDichloroacetic AcidInsulinLipidsPyruvate Dehydrogenase Complex

Identifiers

PMID25795215
PMCPMC4516266
OpenAlexW2048320533

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.