Evidence map›Paper›PMID 23590301›Full record

Trial reportAmerican journal of respiratory cell and molecular biology2013

Peripheral blood mononuclear cell gene expression in chronic obstructive pulmonary disease.

Timothy M Bahr, Grant J Hughes, Michael Armstrong, Rick Reisdorph, Christopher D Coldren, Michael G Edwards, Christina Schnell, Ross Kedl, Daniel J LaFlamme, Nichole Reisdorph and 2 more

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in American journal of respiratory cell and molecular biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed, 2 pooled it
8.1field-weighted citation impact, top 2% 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

89 citing papers in PubMed, 2 syntheses or guidelines pooled it, 138 citations in OpenAlex.

  1. Pooled it
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  5. Predicting treatable traits for long-acting bronchodilators in patients with stable COPD.International journal of chronic obstructive pulmonary disease · 2017
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29 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

12 authors at 4 institutions in 2 countries.

Timothy M BahrDepartment of Biostatistics and Informatics, University of Colorado at Denver, Aurora, CO, USA.
Grant J Hughes
Michael Armstrong
Rick Reisdorph
Christopher D Coldren
Michael G Edwards
Christina Schnell
Ross Kedl
Daniel J LaFlamme
Nichole Reisdorph
Katerina J Kechris
Russell P Bowler
Institute for Medical Informatics and Biostatistics · CHNational Jewish Health · USUniversity of Colorado Denver · USVanderbilt University Medical Center · US

Funding

University of Colorado Cancer Center Support Grant - Lung Cancer Patient-Derived Xenografts with Autologous Human Immune SystemsP30CA046934 · NCI · UNIVERSITY OF COLORADO DENVER · PI James V Degregori · 1988 to 2026
$117.0M
CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR025780 · NCRR · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2008 to 2011
$61.3M
Genetic Epidemiology of COPDU01HL089897 · NHLBI · NATIONAL JEWISH HEALTH · PI CRAPO, JAMES D · 2007 to 2021
$56.9M
Colorado Clinical and Translational Sciences InstituteUL1TR001082 · NCATS · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2013 to 2017
$48.0M
Genetic Epidemiology of COPDU01HL089856 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SILVERMAN, EDWIN K · 2007 to 2021
$20.7M
Colorado Clinical and Translational Science Institute (UL1)UL1TR000154 · NCATS · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2012 to 2013
$20.4M
Metabolic profiles of COPD phenotypesP20HL113445 · NHLBI · NATIONAL JEWISH HEALTH · PI BOWLER, RUSSELL PAUL · 2012 to 2016
$4.7M
ION TRAP for NJCS10RR023703 · NCRR · NATIONAL JEWISH HEALTH · PI REISDORPH, NICHOLE A · 2008 to 2008
$435k
NCATS NIH HHS UL1 TR000154NCATS NIH HHS UL1 TR001082NCI NIH HHS P30 CA046934NCRR NIH HHS S10 RR023703NCRR NIH HHS UL1 RR025780NHLBI NIH HHS P20 HL113445NHLBI NIH HHS U01 HL089856NHLBI NIH HHS U01 HL089897
6 · The paper itself

Abstract

Although most cases of chronic obstructive pulmonary disease (COPD) occur in smokers, only a fraction of smokers develop the disease. We hypothesized distinct molecular signatures for COPD and emphysema in the peripheral blood mononuclear cells (PBMCs) of current and former smokers. To test this hypothesis, we identified and validated PBMC gene expression profiles in smokers with and without COPD. We generated expression data on 136 subjects from the COPDGene study, using Affymetrix U133 2.0 microarrays (Affymetrix, Santa Clara, CA). Multiple linear regression with adjustment for covariates (gender, age, body mass index, family history, smoking status, and pack-years) was used to identify candidate genes, and ingenuity pathway analysis was used to identify candidate pathways. Candidate genes were validated in 149 subjects according to multiplex quantitative real-time polymerase chain reaction, which included 75 subjects not previously profiled. Pathways that were differentially expressed in subjects with COPD and emphysema included those that play a role in the immune system, inflammatory responses, and sphingolipid (ceramide) metabolism. Twenty-six of the 46 candidate genes (e.g., FOXP1, TCF7, and ASAH1) were validated in the independent cohort. Plasma metabolomics was used to identify a novel glycoceramide (galabiosylceramide) as a biomarker of emphysema, supporting the genomic association between acid ceramidase (ASAH1) and emphysema. COPD is a systemic disease whose gene expression signatures in PBMCs could serve as novel diagnostic or therapeutic targets.

Indexed as

Gene Expression RegulationAgedAged, 80 and overBiomarkersFemaleGangliosidesHumansLeukocytes, MononuclearMaleMetabolomicsMiddle AgedPulmonary Disease, Chronic ObstructivePulmonary EmphysemaReal-Time Polymerase Chain ReactionBiomarkersgalabiosylceramideGangliosides

Identifiers

PMID23590301
PMCPMC3824029
OpenAlexW2116514576

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.