Evidence map›Paper›PMID 21471095›Full record

ArticleAmerican journal of respiratory and critical care medicine2011

Viral infection in acute exacerbation of idiopathic pulmonary fibrosis.

Sharon Chao Wootton, Dong Soon Kim, Yasuhiro Kondoh, Eunice Chen, Joyce S Lee, Jin Woo Song, Jin Won Huh, Hiroyuki Taniguchi, Charles Chiu, Homer Boushey and 5 more

Open access · greenAbstract read
In one paragraph

Article in American journal of respiratory and critical care medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 148 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
148citing papers in PubMed, 4 pooled it
13.5field-weighted citation impact, top 1% 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

148 citing papers in PubMed, 4 syntheses or guidelines pooled it, 283 citations in OpenAlex.

  1. Pooled it
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  8. Acute exacerbation in fibrotic interstitial lung disease: an international working group report.American journal of respiratory and critical care medicine · 2026
    Review
  9. Article
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  11. Article
  12. Article
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  14. Antifibrotic Effects ofInternational journal of molecular sciences · 2026
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88 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors at 5 institutions in 3 countries.

Sharon Chao WoottonUC San Francisco/UC Berkeley Joint Graduate Group in Bioengineering, University of California, Berkeley, California, USA.
Dong Soon Kim
Yasuhiro Kondoh
Eunice Chen
Joyce S Lee
Jin Woo Song
Jin Won Huh
Hiroyuki Taniguchi
Charles Chiu
Homer Boushey
Lisa H Lancaster
Paul J Wolters
Joseph DeRisi
Don Ganem
Harold R Collard
University of California, San Francisco · USUlsan College · KRHoward Hughes Medical Institute · USTosei General Hospital · JPVanderbilt University · US

Funding

Defining Acute Exacerbations of Idiopathic Pulmonary FibrosisK23HL086516 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI COLLARD, HAROLD R · 2007 to 2011
$756k
NHLBI NIH HHS HL 086516
6 · The paper itself

Abstract

rationaleIdiopathic pulmonary fibrosis is a progressive, uniformly fatal interstitial lung disease. An acute exacerbation of idiopathic pulmonary fibrosis is an episode of acute respiratory worsening without an identifiable etiology. Occult viral infection has been proposed as a possible cause of acute exacerbation.

objectivesTo use unbiased genomics-based discovery methods to define the role of viruses in acute exacerbation of idiopathic pulmonary fibrosis.

methodsBronchoalveolar lavage and serum from patients with acute exacerbation of idiopathic pulmonary fibrosis, stable disease, and acute lung injury were tested for viral nucleic acid using multiplex polymerase chain reaction, pan-viral microarray, and high-throughput cDNA sequencing. MEASUREMENTS AND MAIN

resultsFour of forty-three patients with acute exacerbation of idiopathic pulmonary fibrosis had evidence of common respiratory viral infection (parainfluenza [n = 1], rhinovirus [n = 2], coronavirus [n = 1]); no viruses were detected in the bronchoalveolar lavage from stable patients. Pan-viral microarrays revealed additional evidence of viral infection (herpes simplex virus [n = 1], Epstein-Barr virus [n = 2], and torque teno virus [TTV] [n = 12]) in patients with acute exacerbation. TTV infection was significantly more common in patients with acute exacerbation than stable controls (P = 0.0003), but present in a similar percentage of acute lung injury controls. Deep sequencing of a subset of acute exacerbation cases confirmed the presence of TTV but did not identify additional viruses.

conclusionsViral infection was not detected in most cases of acute exacerbation of idiopathic pulmonary fibrosis. TTV was present in a significant minority of cases, and cases of acute lung injury; the clinical significance of this finding remains to be determined.

Indexed as

Acute DiseaseAgedBronchoalveolar Lavage FluidDNA Virus InfectionsFemaleHumansIdiopathic Pulmonary FibrosisMaleMicroarray AnalysisOligonucleotide Array Sequence AnalysisPolymerase Chain ReactionRespiratory Tract InfectionsSequence Analysis, DNATorque teno virusVirus Diseases

Identifiers

PMID21471095
PMCPMC3136996
OpenAlexW2152246102

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.