Evidence map›Paper›PMID 20833778›Full record

ArticleAmerican journal of physiology. Lung cellular and molecular physiology2010

Preexposure to hyperoxia causes increased lung injury and epithelial apoptosis in mice ventilated with high tidal volumes.

Patrudu S Makena, Charlean L Luellen, Louisa Balazs, Manik C Ghosh, Kaushik Parthasarathi, Christopher M Waters, Scott E Sinclair

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Lung cellular and molecular physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

30 citing papers in PubMed, 42 citations in OpenAlex.

  1. Bench evidence, bedside uncertainty: hyperoxia, mechanical ventilation and lung injury.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  2. Article
  3. Review
  4. Activation of TREK-1 (American journal of physiology. Lung cellular and molecular physiology · 2023
    Article
  5. Review
  6. Review
  7. Article
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  10. Article
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  14. Hyperoxia treatment of TREK-1/TREK-2/TRAAK-deficient mice is associated with a reduction in surfactant proteins.American journal of physiology. Lung cellular and molecular physiology · 2017
    Article
  15. The role of stretch-activated ion channels in acute respiratory distress syndrome: finally a new target?American journal of physiology. Lung cellular and molecular physiology · 2016
    Review
  16. Review
  17. 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 2 institutions in 2 countries.

Patrudu S MakenaDepartment of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee 38163, USA.
Charlean L Luellen
Louisa Balazs
Manik C Ghosh
Kaushik Parthasarathi
Christopher M Waters
Scott E Sinclair
Immunovaccine (Canada) · CAUniversity of Tennessee Health Science Center · US

Funding

INFLAMMATORY MECHANISMS IN LUNG VASCULAR SEGMENTSR01HL075503 · NHLBI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI PARTHASARATHI, KAUSHIK · 2003 to 2012
$3.3M
Mechanotransduction in Acute Lung InjuryR01HL094366 · NHLBI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI WATERS, CHRISTOPHER M · 2009 to 2012
$2.1M
Stretch and Hyperoxia in Ventilator-induced Lung InjuryR01HL081297 · NHLBI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI SINCLAIR, SCOTT E · 2006 to 2010
$1.8M
NHLBI NIH HHS HL-081297NHLBI NIH HHS HL-094366NHLBI NIH HHS HL-75503NHLBI NIH HHS R01 HL075503NHLBI NIH HHS R01 HL094366
6 · The paper itself

Abstract

Both high tidal volume mechanical ventilation (HV) and hyperoxia (HO) have been implicated in ventilator-induced lung injury. However, patients with acute lung injury are often exposed to HO before the application of mechanical ventilation. The potential priming of the lungs for subsequent injury by exposure to HO has not been extensively studied. We provide evidence that HO (90%) for 12 h followed by HV (25 μl/g) combined with HO for 2 or 4 h (HO-12h+HVHO-2h or -4h) induced severe lung injury in mice. Analysis of lung homogenates showed that lung injury was associated with cleavage of executioner caspases, caspases-3 and -7, and their downstream substrate poly(ADP-ribose) polymerase-1 (PARP-1). No significant lung injury or caspase cleavage was seen with either HO for 16 h or HV for up to 4 h. Ventilation for 4 h with HO (HVHO) did not cause significant lung injury without preexposure to HO. Twelve-hour HO followed by lower tidal volume (6 μl/g) mechanical ventilation failed to produce significant injury or caspase cleavage. We also evaluated the initiator caspases, caspases-8 and -9, to determine whether the death receptor or mitochondrial-mediated pathways were involved. Caspase-9 cleavage was observed in HO-12h+HVHO-2h and -4h as well as HO for 16 h. Caspase-8 activation was observed only in HO-12h+HVHO-4h, indicating the involvement of both pathways. Immunohistochemistry and in vitro stretch studies showed caspase cleavage in alveolar epithelial cells. In conclusion, preexposure to HO followed by HV produced severe lung injury associated with alveolar epithelial cell apoptosis.

Indexed as

Tidal VolumeAnimalsApoptosisCaspasesCell LineEnzyme ActivationEpithelial CellsHumansHyperoxiaMaleMiceMice, Inbred C57BLPoly Adenosine Diphosphate RibosePulmonary AlveoliRespiration, ArtificialStress, MechanicalCaspasesPoly Adenosine Diphosphate Ribose

Identifiers

PMID20833778
PMCPMC2980385
OpenAlexW1973695858

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.