Evidence map›Paper›PMID 28506850›Full record

Trial reportThe Journal of allergy and clinical immunology2018

Neutrophil extracellular traps are associated with disease severity and microbiota diversity in patients with chronic obstructive pulmonary disease.

Alison J Dicker, Megan L Crichton, Eleanor G Pumphrey, Andrew J Cassidy, Guillermo Suarez-Cuartin, Oriol Sibila, Elizabeth Furrie, Christopher J Fong, Wasyla Ibrahim, Gill Brady and 6 more

Registry-linked trialOpen access · hybridAbstract readClinical Trial
In one paragraph

Trial report in The Journal of allergy and clinical immunology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04474392 (Sputum Studies of Anti-Citrullinated Protein Antibodies), which is not on this map. Cited by 164 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
164citing papers in PubMed, 2 pooled it
11.0field-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.

NCT04474392 completednot on this mapstarted 2020, after this paper: background citation

Sputum Studies of Anti-Citrullinated Protein Antibodies (ACPA) and Rheumatoid Arthritis (RA) Origins

TypeobservationalSponsorUniversity of Colorado, DenverRan2020 to 2026Enrolled340ConditionsRheumatoid ArthritisArmsN/A (Observational Study)
3 · Its place in the literature

Who cites it

164 citing papers in PubMed, 2 syntheses or guidelines pooled it, 279 citations in OpenAlex.

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104 more citing papers are in PubMed but not listed here.

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

16 authors at 3 institutions in 3 countries.

Alison J DickerScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom.
Megan L CrichtonScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom.
Eleanor G PumphreyScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom.
Andrew J CassidyScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom.
Guillermo Suarez-CuartinRespiratory Department, Hospital de la Santa Creu i Sant Pau, Institut d'Invesitgacio Biomedica (IIB) Sant Pau, Barcelona, Spain.
Oriol SibilaRespiratory Department, Hospital de la Santa Creu i Sant Pau, Institut d'Invesitgacio Biomedica (IIB) Sant Pau, Barcelona, Spain.
Elizabeth FurrieScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom.
Christopher J FongScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom.
Wasyla IbrahimScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom.
Gill BradyScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom.
Gisli G EinarssonCentre for Infection and Immunity, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, United Kingdom.
J Stuart ElbornCentre for Infection and Immunity, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, United Kingdom; National Heart and Lung Institute, Imperial College London, London, United Kingdom.
Stuart SchembriScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom.
Sara E MarshallDivision of Molecular & Clinical Medicine, School of Medicine, University of Dundee, and the Wellcome Trust, London, United Kingdom.
Colin N A PalmerScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom.
James D ChalmersScottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom. Electronic address: jchalmers@dundee.ac.uk.
University of Dundee · GBHospital de Sant Pau · ESQueen's University Belfast · GB

Funding

Chief Scientist Office ETM/262Wellcome Trust
6 · The paper itself

Abstract

backgroundNeutrophil extracellular traps (NETs) have been observed in the airway in patients with chronic obstructive pulmonary disease (COPD), but their clinical and pathophysiologic implications have not been defined.

objectiveWe sought to determine whether NETs are associated with disease severity in patients with COPD and how they are associated with microbiota composition and airway neutrophil function.

methodsNET protein complexes (DNA-elastase and histone-elastase complexes), cell-free DNA, and neutrophil biomarkers were quantified in soluble sputum and serum from patients with COPD during periods of disease stability and during exacerbations and compared with clinical measures of disease severity and the sputum microbiome. Peripheral blood and airway neutrophil function were evaluated by means of flow cytometry ex vivo and experimentally after stimulation of NET formation.

resultsSputum NET complexes were associated with the severity of COPD evaluated by using the composite Global Initiative for Obstructive Lung Disease scale (P < .0001). This relationship was due to modest correlations between NET complexes and FEV

conclusionNET formation is increased in patients with severe COPD and associated with more frequent exacerbations and a loss of microbiota diversity.

Indexed as

Extracellular TrapsPulmonary Disease, Chronic ObstructiveSeverity of Illness IndexAgedAged, 80 and overHumansMicrobiotaMiddle AgedSputumchronic obstructive pulmonary diseaseexacerbationsHaemophilus speciesNeutrophilsphagocytosis

Identifiers

PMID28506850
PMCPMC5751731
OpenAlexW2612126073

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

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.