Evidence map›Paper›PMID 22679010›Full record

ArticleAmerican journal of respiratory and critical care medicine2012

Dilatation of the constricted human airway by tidal expansion of lung parenchyma.

Tera L Lavoie, Ramaswamy Krishnan, Harrison R Siegel, Essence D Maston, Jeffrey J Fredberg, Julian Solway, Maria L Dowell

Abstract read
In one paragraph

Article in American journal of respiratory and critical care medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
–field-weighted citation impact
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

51 citing papers in PubMed.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. A VirulentFrontiers in veterinary science · 2021
    Article
  11. Airway mechanical compression: its role in asthma pathogenesis and progression.European respiratory review : an official journal of the European Respiratory Society · 2020
    Review
  12. Review
  13. Article
  14. Airway smooth muscle adapting in dynamic conditions is refractory to the bronchodilator effect of a deep inspiration.American journal of physiology. Lung cellular and molecular physiology · 2020
    Article
  15. Tissue traction microscopy to quantify muscle contraction within precision-cut lung slices.American journal of physiology. Lung cellular and molecular physiology · 2020
    Article
  16. Article
  17. Cyclic compression increases F508 Del CFTR expression in ciliated human airway epithelium.American journal of physiology. Lung cellular and molecular physiology · 2019
    Article
  18. Article
  19. The Aftermath of Bronchoconstriction.Journal of engineering and science in medical diagnostics and therapy · 2019
    Review
  20. The Strain on Airway Smooth Muscle During a Deep Inspiration to Total Lung Capacity.Journal of engineering and science in medical diagnostics and therapy · 2019
    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

7 authors.

Tera L LavoieDepartment of Medicine, University of Chicago, Chicago, Illinois 60637, USA.
Ramaswamy Krishnan
Harrison R Siegel
Essence D Maston
Jeffrey J Fredberg
Julian Solway
Maria L Dowell

Funding

TRANSLATIONAL RESEARCH UNIVERSITY OF CHICAGO: CLINICAL TRIALSUL1RR024999 · NCRR · UNIVERSITY OF CHICAGO · PI SOLWAY, JULIAN · 2007 to 2011
$25.3M
HLA-G - LILRB - SHP2 Axis in Airway Smooth MuscleR01HL097805 · NHLBI · UNIVERSITY OF CHICAGO · PI SOLWAY, JULIAN · 2009 to 2012
$2.1M
The resident cell in the asthmatic airway: A victim of its physical microenvironR01HL102373 · NHLBI · HARVARD SCHOOL OF PUBLIC HEALTH · PI FREDBERG, JEFFREY J, TSCHUMPERLIN, DANIEL J. · 2011 to 2014
$1.9M
Therapeutic Potentiation of Bronchial DilatationP50HL107171 · NHLBI · UNIVERSITY OF CHICAGO · PI FREDBERG, JEFFREY J, GARDEL, MARGARET LISE · 2011 to 2012
$911k
NCRR NIH HHS UL1 RR024999NHLBI NIH HHS P50 HL107171NHLBI NIH HHS R01 HL097805NHLBI NIH HHS R01 HL102373
6 · The paper itself

Abstract

rationaleIn the normal lung, breathing and deep inspirations potently antagonize bronchoconstriction, but in the asthmatic lung this salutary effect is substantially attenuated or even reversed. To explain these findings, the prevailing hypothesis focuses on contracting airway smooth muscle and posits a nonlinear dynamic interaction between actomyosin binding and the tethering forces imposed by tidally expanding lung parenchyma.

objectiveThis hypothesis has never been tested directly in bronchial smooth muscle embedded within intraparenchymal airways. Our objective here is to fill that gap.

methodsWe designed a novel system to image contracting intraparenchymal human airways situated within near-normal lung architecture and subjected to dynamic parenchymal expansion that simulates breathing. MEASUREMENTS AND MAIN

resultsReversal of bronchoconstriction depended on the degree to which breathing actually stretched the airway, which in turn depended negatively on severity of constriction and positively on the depth of breathing. Such behavior implies positive feedbacks that engender airway instability. OVERALL

conclusionsThese findings help to explain heterogeneity of airflow obstruction as well as why, in people with asthma, deep inspirations are less effective in reversing bronchoconstriction.

Indexed as

BronchoconstrictionRespirationAcetylcholineAdultAgedAsthmaCadaverDilatationFemaleHumansLungMaleMiddle AgedModels, BiologicalTidal VolumeVasodilator AgentsAcetylcholineVasodilator Agents

Identifiers

PMID22679010
PMCPMC3423451

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.