Evidence map›Paper›PMID 18155232›Full record

ArticleJournal of molecular and cellular cardiology2008

The absence of endogenous lipid oxidation in early stage heart failure exposes limits in lipid storage and turnover.

J Michael O'Donnell, Aaron D Fields, Natalia Sorokina, E Douglas Lewandowski

Open access · greenAbstract read
In one paragraph

Article in Journal of molecular and cellular cardiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 8% 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

70 citing papers in PubMed, 1 synthesis or guideline pooled it, 117 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Physiological response to fetal intravenous lipid emulsion.Clinical science (London, England : 1979) · 2024
    Article
  7. Review
  8. Article
  9. Article
  10. Metabolic flux in the driver's seat during cardiac health and disease.Journal of molecular and cellular cardiology · 2023
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Deranged Myocardial Fatty Acid Metabolism in Heart Failure.International journal of molecular sciences · 2022
    Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. AScientific reports · 2020
    Article

10 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.

J Michael O'DonnellProgram in Integrative Cardiac Metabolism, Center for Cardiovascular Research, University of Illinois at Chicago, College of Medicine, Chicago IL, USA.
Aaron D Fields
Natalia Sorokina
E Douglas Lewandowski
University of Illinois Chicago · US

Funding

Magnetic Resonance of Cardiac C13 Flux &Metabolic RateR37HL049244 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI LEWANDOWSKI, E DOUGLAS · 2003 to 2012
$5.8M
NMR OF MITOCHONDRIAL TRANSPORTERS IN CARDIAC HYPERTROPHYR01HL062702 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI LEWANDOWSKI, E DOUGLAS · 1999 to 2013
$4.4M
Metabolism of Hypertrophic Hearts Overexpressing SERCAR01HL079415 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI O'DONNELL, J. MICHAEL · 2005 to 2009
$1.5M
NHLBI NIH HHS R01 HL062702NHLBI NIH HHS R01 HL079415NHLBI NIH HHS R01HL62702NHLBI NIH HHS R01HL79415NHLBI NIH HHS R37 HL049244NHLBI NIH HHS R37HL049244
6 · The paper itself

Abstract

Intramyocardial lipid handling in pressure-overload-induced heart failure remains poorly understood, and the balance between endogenous and exogenous lipid utilization for mitochondrial ATP production is essentially unknown. In this study, we determined the contribution of endogenous triacylglycerols (TAG) to mitochondrial oxidation relative to that of exogenous palmitate, glucose, and endogenous glycogen in the failing, pressure-overloaded rat heart. TAG content and turnover were also assessed to determine if lipid availability and mobility were altered. Dynamic-mode (13)C NMR was performed in intact hearts from aortic banded and sham operated Spraque-Dawley rats perfused with (13)C-labeled palmitate or glucose to assess TAG turnover rate and palmitate oxidation rate. The fractional contributions from palmitate, glucose, glycogen, and TAG to mitochondrial ATP production were determined from NMR analysis of heart extracts. TAG oxidation was not evident in HF, whereas the contribution of TAG to oxidative ATP production was significant in shams. TAG content was 39% lower in HF compared to sham, and TAG turnover rate was 60% lower in HF. During adrenergic challenge, TAG sources were again not oxidized in the HF group. In early cardiac failure, endogenous TAG oxidation was reduced in parallel to increased carbohydrate oxidation, with no change in exogenous palmitate oxidation. This finding was consistent with reduced TAG storage and mobilization. These data further elucidate the role of intermediary and lipid metabolism in the progression of LVH to failure, and contribute to emerging evidence linking the disruption of myocardial substrate use to cardiomyopathies.

Indexed as

Lipid MetabolismAdenosine TriphosphateAnimalsBlood PressureCarbon IsotopesCitric Acid CycleEnergy MetabolismHeart FailureHeart Function TestsHeart RateMagnetic Resonance SpectroscopyMitochondria, HeartOxidation-ReductionPalmitic AcidPerfusionRatsAdenosine TriphosphateCarbon IsotopesPalmitic AcidTriglycerides

Identifiers

PMID18155232
PMCPMC2276319
OpenAlexW1969388950

What OpenQuestion holds

Textmetadata
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.