Evidence map›Paper›PMID 21760721›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2011

Haemophilus influenzae and smoking-related obstructive airways disease.

Diana C Otczyk, Robert L Clancy, Allan W Cripps

Open access · goldAbstract read
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 29% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. The Role of Atopy in COPD and Asthma.Frontiers in medicine · 2021
    Review
  5. An Oral Whole-Cell Killed NontypeableInternational journal of chronic obstructive pulmonary disease · 2019
    Review
  6. Non-typeableMultidisciplinary respiratory medicine · 2018
    Article
  7. Article
  8. 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

3 authors at 1 institution in 1 country.

Diana C OtczykSchool of Medicine, Griffith Health Institute, Griffith Health, Griffith University, Gold Coast, Queensland, Australia.
Robert L Clancy
Allan W Cripps
Griffith University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIntralumenal bacteria play a critical role in the pathogenesis of acute infective episodes and airway inflammation. Antigens from colonizing bacteria such as nontypeable Haemophilus influenzae (NTHi) may contribute to chronic lung disease through an immediate hypersensitivity response. The objective of this study was to determine the presence of specific NTHi-IgE antibodies in subjects with chronic bronchitis (CB) and COPD who had smoked.

methodsSerum, sputum, and saliva samples were collected from subjects with CB and moderate-severe COPD and healthy aged-matched controls. Total IgE and specific NTHi IgE were measured by enzyme linked immmunosorbent assay. Throat swabs were examined for the presence of NTHi.

resultsTHE RESULTS DEMONSTRATE THAT: i) specific NTHi IgE antibodies occur at a low level in healthy subjects; ii) those with both CB and moderate-severe COPD have elevated specific NTHi IgE antibody compared with healthy controls, with higher levels in those with most severe disease; iii) IgE levels are greater in those with moderate-severe COPD than in those with CB. They demonstrate specific NTHi IgE antibody is regularly found at higher than normal levels in COPD.

conclusionThe detection of IgE antibody to colonizing bacteria in all subjects with CB or moderate-severe COPD identifies a possible mechanism of bronchospasm in these subjects amenable to specific intervention therapy.

Indexed as

AdultAgedAntibodies, BacterialBronchitis, ChronicCase-Control StudiesChi-Square DistributionEnzyme-Linked Immunosorbent AssayFemaleHaemophilus InfectionsHaemophilus influenzaeHumansImmunoglobulin EMaleMiddle AgedNew South WalesPulmonary Disease, Chronic ObstructiveAntibodies, BacterialImmunoglobulin Echronic bronchitischronic obstructive pulmonary diseaseIgEnontypeable Haemophilus influenzasmoking

Identifiers

PMID21760721
PMCPMC3133506
OpenAlexW2082619082

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.