Evidence map›Paper›PMID 28437736›Full record

ArticleThe Journal of nutritional biochemistry2017

Murine diet-induced obesity remodels cardiac and liver mitochondrial phospholipid acyl chains with differential effects on respiratory enzyme activity.

E Madison Sullivan, Amy Fix, Miranda J Crouch, Genevieve C Sparagna, Tonya N Zeczycki, David A Brown, Saame Raza Shaikh

Abstract read
In one paragraph

Article in The Journal of nutritional biochemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

24 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. The Role of Mitochondrial Complexes in Liver Diseases.Journal of clinical and translational hepatology · 2025
    Review
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  4. ALX/FPR2 Contributes to Serum Amyloid A-Induced Lung Neutrophil Recruitment Following Acute Ozone Exposure.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    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

7 authors at 3 institutions in 1 country.

E Madison SullivanDepartment of Biochemistry & Molecular Biology, Brody School of Medicine, East Carolina University, 115 Heart Drive, Greenville, NC 27834, USA; East Carolina Diabetes & Obesity Institute, Brody School of Medicine, East Carolina University, 115 Heart Drive, Greenville, NC 27834, USA.
Amy FixDepartment of Biochemistry & Molecular Biology, Brody School of Medicine, East Carolina University, 115 Heart Drive, Greenville, NC 27834, USA; East Carolina Diabetes & Obesity Institute, Brody School of Medicine, East Carolina University, 115 Heart Drive, Greenville, NC 27834, USA.
Miranda J CrouchDepartment of Biochemistry & Molecular Biology, Brody School of Medicine, East Carolina University, 115 Heart Drive, Greenville, NC 27834, USA; East Carolina Diabetes & Obesity Institute, Brody School of Medicine, East Carolina University, 115 Heart Drive, Greenville, NC 27834, USA.
Genevieve C SparagnaDepartment of Medicine, Division of Cardiology, University of Colorado Denver Anschutz Medical Campus, Aurora, CO 80045, USA.
Tonya N ZeczyckiDepartment of Biochemistry & Molecular Biology, Brody School of Medicine, East Carolina University, 115 Heart Drive, Greenville, NC 27834, USA; East Carolina Diabetes & Obesity Institute, Brody School of Medicine, East Carolina University, 115 Heart Drive, Greenville, NC 27834, USA.
David A BrownDepartment of Human Nutrition, Foods, and Exercise, Virginia Tech Corporate Research Center, 1981 Kraft Drive, Blacksburg, VA 24060, USA.
Saame Raza ShaikhDepartment of Biochemistry & Molecular Biology, Brody School of Medicine, East Carolina University, 115 Heart Drive, Greenville, NC 27834, USA; East Carolina Diabetes & Obesity Institute, Brody School of Medicine, East Carolina University, 115 Heart Drive, Greenville, NC 27834, USA. Electronic address: shaikhsa@ecu.edu.
East Carolina University · USUniversity of Colorado Anschutz Medical Campus · USVirginia Tech · US

Funding

Mitochondrial respirasomes in acute coronary syndromesR01HL123647 · NHLBI · VIRGINIA POLYTECHNIC INST AND ST UNIV · PI HULVER, MATTHEW W, SHAIKH, SAAME R · 2015 to 2018
$1.4M
Treatment of cardiac reperfusion injury by optimizing the mitochondrial membraneR15HL122922 · NHLBI · EAST CAROLINA UNIVERSITY · PI SHAIKH, SAAME R · 2015 to 2015
$434k
NHLBI NIH HHS R01 HL123647NHLBI NIH HHS R15 HL122922
6 · The paper itself

Abstract

Cardiac phospholipids, notably cardiolipin, undergo acyl chain remodeling and/or loss of content in aging and cardiovascular diseases, which is postulated to mechanistically impair mitochondrial function. Less is known about how diet-induced obesity influences cardiac phospholipid acyl chain composition and thus mitochondrial responses. Here we first tested if a high fat diet remodeled murine cardiac mitochondrial phospholipid acyl chain composition and consequently disrupted membrane packing, supercomplex formation and respiratory enzyme activity. Mass spectrometry analyses revealed that mice consuming a high fat diet displayed 0.8-3.3 fold changes in cardiac acyl chain remodeling of cardiolipin, phosphatidylcholine, and phosphatidylethanolamine. Biophysical analysis of monolayers constructed from mitochondrial phospholipids of obese mice showed impairment in the packing properties of the membrane compared to lean mice. However, the high fat diet, relative to the lean controls, had no influence on cardiac mitochondrial supercomplex formation, respiratory enzyme activity, and even respiration. To determine if the effects were tissue specific, we subsequently conducted select studies with liver tissue. Compared to the control diet, the high fat diet remodeled liver mitochondrial phospholipid acyl chain composition by 0.6-5.3-fold with notable increases in n-6 and n-3 polyunsaturation. The remodeling in the liver was accompanied by diminished complex I to III respiratory enzyme activity by 3.5-fold. Finally, qRT-PCR analyses demonstrated an upregulation of liver mRNA levels of tafazzin, which contributes to cardiolipin remodeling. Altogether, these results demonstrate that diet-induced obesity remodels acyl chains in the mitochondrial phospholipidome and exerts tissue specific impairments of respiratory enzyme activity.

Indexed as

AcyltransferasesAnimalsCardiolipinsCell RespirationDiet, High-FatElectron Transport Complex IIIEnzymesMaleMice, Inbred C57BLMitochondria, HeartMitochondria, LiverOxidative PhosphorylationPhosphatidylcholinesPhosphatidylethanolaminesPhospholipidsTranscription FactorsAcyltransferasesCardiolipinsElectron Transport Complex IIIEnzymesPhosphatidylcholinesphosphatidylethanolaminePhosphatidylethanolaminesPhospholipidstafazzin protein, mouseTranscription FactorsCardiolipinHigh-fat dietMembranesMitochondriaObesityPolyunsaturated fatty acids

Identifiers

PMID28437736
PMCPMC5502532
OpenAlexW2607117102

What OpenQuestion holds

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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.