Evidence map›Paper›PMID 28839101›Full record

ArticleAmerican journal of physiology. Lung cellular and molecular physiology2017

Hyperoxia treatment of TREK-1/TREK-2/TRAAK-deficient mice is associated with a reduction in surfactant proteins.

Andreas Schwingshackl, Benjamin Lopez, Bin Teng, Charlean Luellen, Florian Lesage, John Belperio, Riccardo Olcese, Christopher M Waters

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Lung cellular and molecular physiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Review
  5. Article
  6. Mechanisms of impaired alveolar fluid clearance.Anatomical record (Hoboken, N.J. : 2007) · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Activation of TREK-1 (American journal of physiology. Lung cellular and molecular physiology · 2023
    Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Review
  19. KScientific reports · 2020
    Article
  20. Review
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

8 authors at 3 institutions in 2 countries.

Andreas SchwingshacklDepartment of Pediatrics, University of California, Los Angeles, California; aschwingshackl@gmail.com.
Benjamin LopezDepartment of Pediatrics, University of California, Los Angeles, California.
Bin TengDepartment of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee; and.
Charlean LuellenDepartment of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee; and.
Florian LesageUniversité Côte d'Azur, Institut de Pharmacologie Moléculaire et Cellulaire, Centre National de la Recherche Scientifique, Laboratory of Excellence "Ion Channel Science and Therapeutics," Valbonne, France.
John BelperioDepartment of Pulmonary and Critical Care, University of California, Los Angeles, California.
Riccardo OlceseDepartment of Anesthesiology and Perioperative Medicine, University of California, Los Angeles, California.
Christopher M WatersDepartment of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee; and.
University of California, Los Angeles · USUniversity of Tennessee Health Science Center · USInstitut de Pharmacologie Moléculaire et Cellulaire · FR

Funding

CXCR4 signaling in lung epithelial repairR01HL123540 · NHLBI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI WATERS, CHRISTOPHER M · 2014 to 2017
$1.5M
The Role of 2-Pore Domain Potassium Channels in Acute Lung Injury.K08HL118118 · NHLBI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI SCHWINGSHACKL, ANDREAS · 2014 to 2018
$792k
NHLBI NIH HHS K08 HL118118NHLBI NIH HHS R01 HL123540
6 · The paper itself

Abstract

We previously proposed a role for the two-pore domain potassium (K2P) channel TREK-1 in hyperoxia (HO)-induced lung injury. To determine whether redundancy among the three TREK isoforms (TREK-1, TREK-2, and TRAAK) could protect from HO-induced injury, we now examined the effect of deletion of all three TREK isoforms in a clinically relevant scenario of prolonged HO exposure and mechanical ventilation (MV). We exposed WT and TREK-1/TREK-2/TRAAK-deficient [triple knockout (KO)] mice to either room air, 72-h HO, MV [high and low tidal volume (TV)], or a combination of HO + MV and measured quasistatic lung compliance, bronchoalveolar lavage (BAL) protein concentration, histologic lung injury scores (LIS), cellular apoptosis, and cytokine levels. We determined surfactant gene and protein expression and attempted to prevent HO-induced lung injury by prophylactically administering an exogenous surfactant (Curosurf). HO treatment increased lung injury in triple KO but not WT mice, including an elevated LIS, BAL protein concentration, and markers of apoptosis, decreased lung compliance, and a more proinflammatory cytokine phenotype. MV alone had no effect on lung injury markers. Exposure to HO + MV (low TV) further decreased lung compliance in triple KO but not WT mice, and HO + MV (high TV) was lethal for triple KO mice. In triple KO mice, the HO-induced lung injury was associated with decreased surfactant protein (SP) A and SPC but not SPB and SPD expression. However, these changes could not be explained by alterations in the transcription factors nuclear factor-1 (NF-1), NKX2.1/thyroid transcription factor-1 (TTF-1) or c-jun, or lamellar body levels. Prophylactic Curosurf administration did not improve lung injury scores or compliance in triple KO mice.

Indexed as

AnimalsGene Expression RegulationHyperoxiaLipopolysaccharidesLung InjuryMiceMice, KnockoutPotassium ChannelsPotassium Channels, Tandem Pore DomainPulmonary Surfactant-Associated ProteinsTranscription FactorsKcnk10 protein, mouseKcnk4 protein, mouseLipopolysaccharidespotassium channel protein TREK-1Potassium ChannelsPotassium Channels, Tandem Pore DomainPulmonary Surfactant-Associated ProteinsTranscription Factorsacute lung injuryacute respiratory distress syndromeALIARDSlunglung injurymechanical stretchsurfactant hyperoxiaTRAAKTREKventilator-associated injury

Identifiers

PMID28839101
PMCPMC5814704
OpenAlexW2749544759

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.