Evidence map›Paper›PMID 25377849›Full record

ArticleBritish journal of clinical pharmacology2015

Characterization of the inflammatory response to inhaled lipopolysaccharide in mild to moderate chronic obstructive pulmonary disease.

Vandana Gupta, Antonia Banyard, Aoibheann Mullan, Srividya Sriskantharajah, Thomas Southworth, Dave Singh

Open access · bronzeAbstract read
In one paragraph

Article in British journal of clinical pharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.8field-weighted citation impact, top 30% 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

14 citing papers in PubMed, 26 citations in OpenAlex.

  1. Dexamethasone inhibits endotoxin-induced coagulopathy in human lungs.Journal of thrombosis and haemostasis : JTH · 2016
    Trial
  2. Trial
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  4. Trial
  5. Article
  6. Article
  7. Article
  8. Review
  9. The aqueous root extract ofFrontiers in pharmacology · 2023
    Article
  10. Article
  11. Clinical Experience of Personalized Phage Therapy Against Carbapenem-ResistantFrontiers in cellular and infection microbiology · 2021
    Article
  12. Review
  13. Article
  14. Animal models of emphysema.Chinese medical journal · 2019
    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

6 authors at 3 institutions in 1 country.

Vandana GuptaMedicines Evaluation Unit, University Hospital of South Manchester Foundation Trust, University of Manchester, Southmoor Rd, Manchester, UK.
Antonia Banyard
Aoibheann Mullan
Srividya Sriskantharajah
Thomas Southworth
Dave Singh
Medicines Evaluation Unit · GBUniversity of Manchester · GBAge UK · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsLipopolysaccharide (LPS) inhalation causes increased airway and systemic inflammation. We investigated LPS inhalation in patients with chronic obstructive pulmonary disease (COPD) as a model of bacterial exacerbations. We studied safety, changes in sputum and systemic biomarkers. We have also investigated interleukin (IL)-17 concentrations in this model.

methodsTwelve COPD patients inhaled 5 μg LPS. Safety was monitored over 24 h. Sputum was induced at baseline, 6 and 24 h for cells and IL-8, IL-17, neutrophil elastase, monocyte chemoattractant protein-1 (MCP-1) and macrophage inflammatory protein-1β (MIP-1β) in supernatants. Serum was collected at baseline, 4, 8 and 24 h for IL-6, C-reactive protein (CRP) and Clara cell protein (CC-16) concentrations. Peripheral blood mononuclear cells (PBMCs) were isolated at baseline and 4 h for systemic IL-17 analysis.

resultsLPS 5 μg was well tolerated. The greatest FEV1 change was 11.7% (mean) at 1 h (95% CI 5.1-18.2%). There was a large range in maximal fall (2.5-37.7%). Total sputum cell count and neutrophil count significantly increased 6 and 24 h post-LPS. There was no change in sputum supernatant mediators. IL-6, CRP and CC-16 increased post-inhalation, with different temporal patterns. CD4+ and CD8+ cell associated IL-17 significantly increased at 4 h.

conclusionsInhaled LPS in COPD patients safely causes increased airway and systemic inflammation. This may be a model for studying COPD exacerbations.

Indexed as

Inhalation ExposureAdrenal Cortex HormonesBiomarkersCell CountDisease ProgressionFemaleFlow CytometryHumansLipopolysaccharidesLymphocytesMaleMiddle AgedPulmonary Disease, Chronic ObstructiveSeverity of Illness IndexSputumAdrenal Cortex HormonesBiomarkersLipopolysaccharidesCOPDCOPD exacerbationsIL-17lipopolysaccharidesputum neutrophils

Identifiers

PMID25377849
PMCPMC4415713
OpenAlexW1815264987

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.