Evidence map›Paper›PMID 26240137›Full record

ArticleThe Journal of biological chemistry2015

Long-chain Acylcarnitines Reduce Lung Function by Inhibiting Pulmonary Surfactant.

Chikara Otsubo, Sivakama Bharathi, Radha Uppala, Olga R Ilkayeva, Dongning Wang, Kevin McHugh, Ye Zou, Jieru Wang, John F Alcorn, Yi Y Zuo and 2 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
2.8field-weighted citation impact, top 11% 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

46 citing papers in PubMed, 63 citations in OpenAlex.

  1. Advances in metabolic reprogramming of pulmonary fibrosis.Chinese medical journal pulmonary and critical care medicine · 2026
    Review
  2. Metabolomic profiling reveals distinct and shared biology in COPD and IPF.Metabolomics : Official journal of the Metabolomic Society · 2026
    Article
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  7. Review
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  16. A review of fatty acid oxidation disorder mouse models.Molecular genetics and metabolism · 2024
    Review
  17. Article
  18. Review
  19. 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

12 authors at 3 institutions in 1 country.

Chikara OtsuboFrom the Department of Pediatrics, University of Pittsburgh School of Medicine, University of Pittsburgh, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania 15224.
Sivakama BharathiFrom the Department of Pediatrics, University of Pittsburgh School of Medicine, University of Pittsburgh, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania 15224.
Radha UppalaFrom the Department of Pediatrics, University of Pittsburgh School of Medicine, University of Pittsburgh, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania 15224.
Olga R IlkayevaSarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, North Carolina 27701, and.
Dongning WangSarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, North Carolina 27701, and.
Kevin McHughFrom the Department of Pediatrics, University of Pittsburgh School of Medicine, University of Pittsburgh, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania 15224.
Ye ZouDepartment of Mechanical Engineering, University of Hawaii at Manoa, Honolulu, Hawaii 96822.
Jieru WangFrom the Department of Pediatrics, University of Pittsburgh School of Medicine, University of Pittsburgh, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania 15224.
John F AlcornFrom the Department of Pediatrics, University of Pittsburgh School of Medicine, University of Pittsburgh, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania 15224.
Yi Y ZuoDepartment of Mechanical Engineering, University of Hawaii at Manoa, Honolulu, Hawaii 96822.
Matthew D HirscheySarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, North Carolina 27701, and.
Eric S GoetzmanFrom the Department of Pediatrics, University of Pittsburgh School of Medicine, University of Pittsburgh, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania 15224, Eric.goetzman@chp.edu.
University of Pittsburgh · USDuke University · USUniversity of Hawaiʻi at Mānoa · US

Funding

RESEARCH DESIGN AND BIOSTATISTICS COREU54MD007584 · NIMHD · UNIVERSITY OF HAWAII AT MANOA · PI HEDGES, JERRIS ROBERT, MOKUAU, NOREEN · 2012 to 2018
$21.1M
Center for Clinical and Translational Sciences (CCTS)UL1TR000371 · NCATS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI MCPHERSON, DAVID D · 2012 to 2016
$13.4M
Regulation of alveolar epithelial homeostasis in acute lung injuryR01HL113655 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI WANG, JIERU · 2012 to 2016
$1.9M
NCATS NIH HHS UL1 TR000371NHLBI NIH HHS R01 HL113655NIMHD NIH HHS U54 MD007584
6 · The paper itself

Abstract

The role of mitochondrial energy metabolism in maintaining lung function is not understood. We previously observed reduced lung function in mice lacking the fatty acid oxidation enzyme long-chain acyl-CoA dehydrogenase (LCAD). Here, we demonstrate that long-chain acylcarnitines, a class of lipids secreted by mitochondria when metabolism is inhibited, accumulate at the air-fluid interface in LCAD(-/-) lungs. Acylcarnitine accumulation is exacerbated by stress such as influenza infection or by dietary supplementation with l-carnitine. Long-chain acylcarnitines co-localize with pulmonary surfactant, a unique film of phospholipids and proteins that reduces surface tension and prevents alveolar collapse during breathing. In vitro, the long-chain species palmitoylcarnitine directly inhibits the surface adsorption of pulmonary surfactant as well as its ability to reduce surface tension. Treatment of LCAD(-/-) mice with mildronate, a drug that inhibits carnitine synthesis, eliminates acylcarnitines and improves lung function. Finally, acylcarnitines are detectable in normal human lavage fluid. Thus, long-chain acylcarnitines may represent a risk factor for lung injury in humans with dysfunctional fatty acid oxidation.

Indexed as

Acyl-CoA Dehydrogenase, Long-ChainAnimalsCarnitineHumansLungLung InjuryMiceMice, KnockoutPhospholipidsPulmonary SurfactantsacylcarnitineAcyl-CoA Dehydrogenase, Long-ChainCarnitinePhospholipidsPulmonary Surfactantsacylcarnitineacyl-CoA dehydrogenasefatty acid oxidationgene knockoutlungmildronatemitochondriapulmonary surfactant

Identifiers

PMID26240137
PMCPMC4583047
OpenAlexW1107501371

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.