Evidence map›Paper›PMID 27117828›Full record

Trial reportRespiratory research2016

Advanced glycation endproducts and their receptor in different body compartments in COPD.

Susan J M Hoonhorst, Adèle T Lo Tam Loi, Simon D Pouwels, Alen Faiz, Eef D Telenga, Maarten van den Berge, Leo Koenderman, Jan-Willem J Lammers, H Marike Boezen, Antoon J M van Oosterhout and 4 more

Open access · goldAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Respiratory research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 5% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 101 citations in OpenAlex.

  1. Receptor for advanced glycation end-products and environmental exposure related obstructive airways disease: a systematic review.European respiratory review : an official journal of the European Respiratory Society · 2019
    Pooled it
  2. Trial
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  6. The Anti-AGEing and RAGEing Potential of Isothiocyanates.Molecules (Basel, Switzerland) · 2024
    Review
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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

14 authors at 3 institutions in 1 country.

Susan J M HoonhorstDepartment of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713, GZ, Groningen, The Netherlands.
Adèle T Lo Tam LoiDepartment of Respiratory Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
Simon D PouwelsDepartment of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713, GZ, Groningen, The Netherlands.
Alen FaizUniversity of Groningen, University Medical Center Groningen, GRIAC research institute, Groningen, The Netherlands.
Eef D TelengaDepartment of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713, GZ, Groningen, The Netherlands.
Maarten van den BergeDepartment of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713, GZ, Groningen, The Netherlands.
Leo KoendermanDepartment of Respiratory Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
Jan-Willem J LammersDepartment of Respiratory Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
H Marike BoezenUniversity of Groningen, University Medical Center Groningen, GRIAC research institute, Groningen, The Netherlands.
Antoon J M van OosterhoutUniversity of Groningen, University Medical Center Groningen, GRIAC research institute, Groningen, The Netherlands.
Monique E LodewijkUniversity of Groningen, University Medical Center Groningen, GRIAC research institute, Groningen, The Netherlands.
Wim TimensUniversity of Groningen, University Medical Center Groningen, GRIAC research institute, Groningen, The Netherlands.
Dirkje S PostmaDepartment of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713, GZ, Groningen, The Netherlands.
Nick H T Ten HackenDepartment of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713, GZ, Groningen, The Netherlands. n.h.t.ten.hacken@umcg.nl.
University Medical Center Groningen · NLUniversity of Groningen · NLUniversity Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic obstructive pulmonary disease (COPD) is a chronic lung disease characterized by chronic airway inflammation and emphysema, and is caused by exposure to noxious particles or gases, e.g. cigarette smoke. Smoking and oxidative stress lead to accelerated formation and accumulation of advanced glycation end products (AGEs), causing local tissue damage either directly or by binding the receptor for AGEs (RAGE). This study assessed the association of AGEs or RAGE in plasma, sputum, bronchial biopsies and skin with COPD and lung function, and their variance between these body compartments.

methodsHealthy smoking and never-smoking controls (n = 191) and COPD patients (n = 97, GOLD stage I-IV) were included. Autofluorescence (SAF) was measured in the skin, AGEs (pentosidine, CML and CEL) and sRAGE in blood and sputum by ELISA, and in bronchial biopsies by immunohistochemistry. eQTL analysis was performed in bronchial biopsies.

resultsCOPD patients showed higher SAF values and lower plasma sRAGE levels compared to controls and these values associated with decreased lung function (p <0.001; adjusting for relevant covariates). Lower plasma sRAGE levels significantly and independently predicted higher SAF values (p < 0.001). One SNP (rs2071278) was identified within a region of 50 kB flanking the AGER gene, which was associated with the gene and protein expression levels of AGER and another SNP (rs2071278) which was associated with the accumulation of AGEs in the skin.

conclusionIn COPD, AGEs accumulate differentially in body compartments, i.e. they accumulate in the skin, but not in plasma, sputum and bronchial biopsies. The association between lower sRAGE and higher SAF levels supports the hypothesis that the protective mechanism of sRAGE as a decoy-receptor is impaired in COPD.

Indexed as

AdolescentAdultAgedBiomarkersBronchiFemaleGlycation End Products, AdvancedHumansMaleMiddle AgedNetherlandsOrgan SpecificityPulmonary Disease, Chronic ObstructiveReceptor for Advanced Glycation End ProductsSkinSmokingBiomarkersGlycation End Products, AdvancedReceptor for Advanced Glycation End ProductsAdvanged glycation end-productsCOPDRAGEsRAGE

Identifiers

PMID27117828
PMCPMC4847335
OpenAlexW2343199950

What OpenQuestion holds

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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.