Evidence map›Paper›PMID 23264538›Full record

ReviewJournal of applied physiology (Bethesda, Md. : 1985)2013

COPD elicits remodeling of the diaphragm and vastus lateralis muscles in humans.

Sanford Levine, Muhammad H Bashir, Thomas L Clanton, Scott K Powers, Sunil Singhal

Open access · greenAbstract readReview
In one paragraph

Review in Journal of applied physiology (Bethesda, Md. : 1985), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 6% 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 61 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Ultrasound innovations in diaphragm assessment: an integrative review of expanding clinical applications.European respiratory review : an official journal of the European Respiratory Society · 2025
    Review
  4. Diaphragm Function in Health and Disease.Advances in experimental medicine and biology · 2025
    Review
  5. Ventilatory neural drive in chronically hypercapnic patients with COPD: effects of sleep and nocturnal noninvasive ventilation.European respiratory review : an official journal of the European Respiratory Society · 2022
    Review
  6. Review
  7. Review
  8. The phrenic neuromuscular system.Handbook of clinical neurology · 2022
    Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. [Diaphragm dysfunction : Facts for clinicians].Medizinische Klinik, Intensivmedizin und Notfallmedizin · 2018
    Review
  18. Article
  19. 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

5 authors at 2 institutions in 1 country.

Sanford LevineDepartment of Surgery, University of Pennsylvania, Philadelphia, Pennsylvania 19035, USA. sdlevine@mail.med.upenn.edu
Muhammad H Bashir
Thomas L Clanton
Scott K Powers
Sunil Singhal
University of Pennsylvania · USUniversity of Florida · US

Funding

Ventilator-induced diaphragm dysfunctionR01HL078834 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI LEVINE, SANFORD NO MIDDLE NAME · 2006 to 2010
$2.1M
NHLBI NIH HHS HL-078834
6 · The paper itself

Abstract

A profound remodeling of the diaphragm and vastus lateralis (VL) occurs in patients with moderate-to-severe chronic obstructive pulmonary disease (COPD). In this mini-review, we discuss the following costal diaphragm remodeling features noted in patients with moderate-to-severe COPD: 1) deletion of serial sarcomeres, 2) increased proportion of slow-twitch fibers, 3) fast-to-slow isoform shift in sarco(endo)plasmic reticulum Ca(2+)-ATPase, 4) increased capacity of oxidative metabolism, 5) oxidative stress, and 6) myofiber atrophy. We then present the sole feature of diaphragm remodeling noted in mild-to-moderate COPD under the heading "MyHC and contractile remodeling noted in mild-to-moderate COPD." The importance of VL remodeling in COPD patients as a prognostic indicator as well as a major determinant of the ability to carry out activities of daily living is well accepted. We present the remodeling of the VL noted in COPD patients under the following headings: 1) Decrease in proportion of slow-twitch fibers, 2) Decreased activity of oxidative pathways, 3) Oxidative and nitrosative stress, and 4) Myofiber atrophy. For each of the remodeling features noted in both the VL and costal diaphragm of COPD patients, we present mechanisms that are currently thought to mediate these changes as well as the pathophysiology of each remodeling feature. We hope that our mechanistic presentation stimulates research in this area that focuses on improving the ability of COPD patients to carry out increased activities of daily living.

Indexed as

DiaphragmHumansModels, BiologicalMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchOxidative StressPulmonary Disease, Chronic ObstructiveQuadriceps MuscleSarcomeresSarcoplasmic Reticulum Calcium-Transporting ATPasesSarcoplasmic Reticulum Calcium-Transporting ATPaseschronic obstructive pulmonary diseasediaphragmfast-twitch fiberfiber type transformationslow-twitch fibervastus lateralis

Identifiers

PMID23264538
PMCPMC3656432
OpenAlexW2081673734

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.