Evidence map›Paper›PMID 26020772›Full record

Trial reportPloS one2015

Level of Fatty Acid Binding Protein 5 (FABP5) Is Increased in Sputum of Allergic Asthmatics and Links to Airway Remodeling and Inflammation.

Hille Suojalehto, Pia Kinaret, Maritta Kilpeläinen, Elina Toskala, Niina Ahonen, Henrik Wolff, Harri Alenius, Anne Puustinen

Abstract readClinical TrialMulticenter Study
In one paragraph

Trial report in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–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

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

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Exploring the Potential of OverexpressedInternational journal of molecular sciences · 2019
    Article
  12. Review
  13. Article
  14. Observational
  15. Article
  16. FABP4 regulates eosinophil recruitment and activation in allergic airway inflammation.American journal of physiology. Lung cellular and molecular physiology · 2018
    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

8 authors.

Hille SuojalehtoOccupational Medicine Team, Finnish Institute of Occupational Health, Helsinki, Finland.
Pia KinaretUnit of Systems Toxicology, Finnish Institute of Occupational Health, Helsinki, Finland.
Maritta KilpeläinenDepartment of Pulmonary Diseases and Allergology, University of Turku, Turku, Finland.
Elina ToskalaDepartment of Otolaryngology- Head and Neck Surgery, Temple University, Philadelphia, United States of America.
Niina AhonenUnit of Systems Toxicology, Finnish Institute of Occupational Health, Helsinki, Finland.
Henrik WolffUnit of Systems Toxicology, Finnish Institute of Occupational Health, Helsinki, Finland.
Harri AleniusUnit of Systems Toxicology, Finnish Institute of Occupational Health, Helsinki, Finland.
Anne PuustinenUnit of Systems Toxicology, Finnish Institute of Occupational Health, Helsinki, Finland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe inflammatory processes in the upper and lower airways in allergic rhinitis and asthma are similar. Induced sputum and nasal lavage fluid provide a non-invasive way to examine proteins involved in airway inflammation in these conditions.

objectivesWe conducted proteomic analyses of sputum and nasal lavage fluid samples to reveal differences in protein abundances and compositions between the asthma and rhinitis patients and to investigate potential underlying mechanisms.

methodsInduced sputum and nasal lavage fluid samples were collected from 172 subjects with 1) allergic rhinitis, 2) asthma combined with allergic rhinitis, 3) nonallergic rhinitis and 4) healthy controls. Proteome changes in 21 sputum samples were analysed with two-dimensional difference gel electrophoresis (2D-DIGE), and the found differentially regulated proteins identified with mass spectrometry. Immunological validation of identified proteins in the sputum and nasal lavage fluid samples was performed with Western blot and ELISA.

resultsAltogether 31 different proteins were identified in the sputum proteome analysis, most of these were found also in the nasal lavage fluid. Fatty acid binding protein 5 (FABP5) was up-regulated in the sputum of asthmatics. Immunological validation in the whole study population confirmed the higher abundance levels of FABP5 in asthmatic subjects in both the sputum and nasal lavage fluid samples. In addition, the vascular endothelial growth factor (VEGF) level was increased in the nasal lavage fluid of asthmatics and there were positive correlations between FABP5 and VEGF levels (r=0.660, p<0.001) and concentrations of FABP5 and cysteinyl leukotriene (CysLT) (r=0.535, p<0.001) in the nasal lavage fluid.

conclusionsFABP5 may contribute to the airway remodeling and inflammation in asthma by fine-tuning the levels of CysLTs, which induce VEGF production.

Indexed as

Airway RemodelingAdultAsthmaFatty Acid-Binding ProteinsFemaleFollow-Up StudiesHumansInflammationMaleProteomicsSputumVascular Endothelial Growth Factor AFABP5 protein, humanFatty Acid-Binding ProteinsVascular Endothelial Growth Factor AVEGFA protein, human

Identifiers

PMID26020772
PMCPMC4447257

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.