Evidence map›Paper›PMID 30414534›Full record

ArticleRedox biology2019

Increased SOD2 in the diaphragm contributes to exercise-induced protection against ventilator-induced diaphragm dysfunction.

Aaron B Morton, Ashley J Smuder, Michael P Wiggs, Stephanie E Hall, Bumsoo Ahn, J Matthew Hinkley, Noriko Ichinoseki-Sekine, Andres Mor Huertas, Mustafa Ozdemir, Toshinori Yoshihara and 2 more

Open access · goldAbstract read
In one paragraph

Article in Redox biology, 2019. 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
4.0field-weighted citation impact, top 5% 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, 50 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Mitochondrial Biogenesis in Skeletal Muscle.Advances in experimental medicine and biology · 2025
    Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. The effects of COVID-19 on respiratory muscle performance: making the case for respiratory muscle testing and training.European respiratory review : an official journal of the European Respiratory Society · 2022
    Review
  16. Review
  17. Reducing sarcolipin expression improves muscle metabolism inAmerican journal of physiology. Cell physiology · 2022
    Article
  18. Article
  19. Mitochondrial Bioenergetics and Turnover during Chronic Muscle Disuse.International journal of molecular sciences · 2021
    Review
  20. Tempol improves redox status in mdx dystrophic diaphragm muscle.International journal of experimental pathology · 2020
    Article
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 7 institutions in 2 countries.

Aaron B MortonDepartment of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United States.
Ashley J SmuderDepartment of Exercise Science, University of South Carolina, Columbia, SC, United States.
Michael P WiggsDepartment of Health and Kinesiology, University of Texas at Tyler, Tyler, TX, United States.
Stephanie E HallDepartment of Kinesiology, Boise State University, Boise, ID, United States.
Bumsoo AhnOklahoma Medical Research Foundation, Oklahoma City, OK, United States.
J Matthew HinkleyTranslational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL, United States.
Noriko Ichinoseki-SekineSchool of Health and Sports Science, Juntendo University, Chiba, Japan.
Andres Mor HuertasDepartment of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United States.
Mustafa OzdemirDepartment of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United States.
Toshinori YoshiharaSchool of Health and Sports Science, Juntendo University, Chiba, Japan.
Nicholas R WawrzyniakDepartment of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United States.
Scott K PowersDepartment of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United States. Electronic address: spowers@hhp.ufl.edu.
University of Florida · USJuntendo University · JPBoise State University · USOklahoma Medical Research Foundation · USThe University of Texas Health Science Center at Tyler · USTranslational Research Institute for Metabolism and Diabetes · USUniversity of South Carolina · US

Funding

Training In Rehabilitation and Neuromuscular PlasticityT32HD043730 · NICHD · UNIVERSITY OF FLORIDA · PI DAVID D FULLER · 2003 to 2026
$5.3M
Mechanisms of exercise protection in ventilator-induced diaphragm dysfunctionR01AR064189 · NIAMS · UNIVERSITY OF FLORIDA · PI POWERS, SCOTT K. · 2013 to 2017
$2.2M
NIAMS NIH HHS R01 AR064189NICHD NIH HHS T32 HD043730
6 · The paper itself

Abstract

Mechanical ventilation (MV) is a life-saving intervention for many critically ill patients. Unfortunately, prolonged MV results in rapid diaphragmatic atrophy and contractile dysfunction, collectively termed ventilator-induced diaphragm dysfunction (VIDD). Recent evidence reveals that endurance exercise training, performed prior to MV, protects the diaphragm against VIDD. While the mechanism(s) responsible for this exercise-induced protection against VIDD remain unknown, increased diaphragm antioxidant expression may be required. To investigate the role that increased antioxidants play in this protection, we tested the hypothesis that elevated levels of the mitochondrial antioxidant enzyme superoxide dismutase 2 (SOD2) is required to achieve exercise-induced protection against VIDD. Cause and effect was investigated in two ways. First, we prevented the exercise-induced increase in diaphragmatic SOD2 via delivery of an antisense oligonucleotide targeted against SOD2 post-exercise. Second, using transgene overexpression of SOD2, we determined the effects of increased SOD2 in the diaphragm independent of exercise training. Results from these experiments revealed that prevention of the exercise-induced increases in diaphragmatic SOD2 results in a loss of exercise-mediated protection against MV-induced diaphragm atrophy and a partial loss of protection against MV-induced diaphragmatic contractile dysfunction. In contrast, transgenic overexpression of SOD2 in the diaphragm, independent of exercise, did not protect against MV-induced diaphragmatic atrophy and provided only partial protection against MV-induced diaphragmatic contractile dysfunction. Collectively, these results demonstrate that increased diaphragmatic levels of SOD2 are essential to achieve the full benefit of exercise-induced protection against VIDD.

Indexed as

Physical Conditioning, AnimalAnimalsAntioxidantsAtrophyDiaphragmEnzyme ActivationFemaleGene ExpressionGlutathione ReductaseMiceMitochondriaMuscle ContractionProteolysisRespiration, ArtificialSuperoxide DismutaseSuperoxide Dismutase 2AntioxidantsGlutathione ReductaseSuperoxide DismutaseSuperoxide Dismutase 2AntioxidantsDiaphragmExercise trainingMuscle atrophyROSSOD2

Identifiers

PMID30414534
PMCPMC6226598
OpenAlexW2897680901

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.