Evidence map›Paper›PMID 33235638›Full record

ArticleThe EPMA journal2020

Induced sputum metabolomic profiles and oxidative stress are associated with chronic obstructive pulmonary disease (COPD) severity: potential use for predictive, preventive, and personalized medicine.

Tao Zhu, Shanqun Li, Jiajia Wang, Chunfang Liu, Lei Gao, Yuzhen Zeng, Ruolin Mao, Bo Cui, Hong Ji, Zhihong Chen

Open access · hybridAbstract read
In one paragraph

Article in The EPMA journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.7field-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

31 citing papers in PubMed, 46 citations in OpenAlex.

  1. Lp-PLA2-derived LysoPC drives dendritic cell immunogenic activation and Th17 inflammation in severe asthma.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Article
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  7. Induced sputum: current progress and prospect.European journal of medical research · 2025
    Review
  8. Review
  9. Article
  10. Effects ofInternational journal of molecular sciences · 2025
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  17. Dietary Supplementation withAnimals : an open access journal from MDPI · 2024
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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

10 authors at 3 institutions in 2 countries.

Tao Zhu *Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China.ORCID https://orcid.org/0000-0001-9622-2721
Shanqun Li *Department of Respiratory and Critical Care Medicine, Zhongshan Hospital of Fudan University, Shanghai, 20032 China.ORCID https://orcid.org/0000-0002-8096-9780
Jiajia WangRheumatology Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China.ORCID https://orcid.org/0000-0002-6961-2190
Chunfang LiuDepartment of Respiratory and Critical Care Medicine, Zhongshan Hospital of Fudan University, Shanghai, 20032 China.
Lei GaoDepartment of Respiratory and Critical Care Medicine, Zhongshan Hospital of Fudan University, Shanghai, 20032 China.
Yuzhen ZengDepartment of Respiratory and Critical Care Medicine, Zhongshan Hospital of Fudan University, Shanghai, 20032 China.
Ruolin MaoDepartment of Respiratory and Critical Care Medicine, Zhongshan Hospital of Fudan University, Shanghai, 20032 China.ORCID https://orcid.org/0000-0003-1463-0321
Bo CuiDepartment of Respiratory and Critical Care Medicine, Zhongshan Hospital of Fudan University, Shanghai, 20032 China.
Hong JiCalifornia National Primate Research Center, and Department of Anatomy, Physiology & Cell Biology, School of Veterinary Medicine, University of California, Davis, CA 95616 USA.ORCID https://orcid.org/0000-0002-9558-0620
Zhihong ChenDepartment of Respiratory and Critical Care Medicine, Zhongshan Hospital of Fudan University, Shanghai, 20032 China.ORCID https://orcid.org/0000-0001-6048-5917
Fudan University · CNDalian Medical University · CNUniversity of California, Davis · US

Funding

National Institute on Aging (NIA) ColonyP51OD011107 · OD · UNIVERSITY OF CALIFORNIA AT DAVIS · PI Simon J. Atkinson · 2012 to 2026
$191.5M
Role of TET1 in airway epithelium and childhood asthmaR01AI141569 · NIAID · UNIVERSITY OF CALIFORNIA AT DAVIS · PI JI, HONG · 2019 to 2023
$3.0M
NIAID NIH HHS R01 AI141569NIH HHS P51 OD011107
6 · The paper itself

Abstract

Chronic obstructive pulmonary disease (COPD) is a highly heterogeneous disease, and metabolomics plays a hub role in predictive, preventive, and personalized medicine (PPPM) related to COPD. This study thus aimed to reveal the role of induced sputum metabolomics in predicting COPD severity. In this pilot study, a total of 20 COPD patients were included. The induced sputum metabolites were assayed using a liquid chromatography-mass spectrometry (LC-MS/MS) system. Five oxidative stress products (myeloperoxidase (MPO), superoxide dismutase (SOD), glutathione (GSH), neutrophil elastase (NE), and 8-iso-PGF2α) in induced sputum were measured by ELISA, and the metabolomic profiles were distinguished by principal component analysis (PCA) and orthogonal projections to latent structures discriminant analysis (OPLS-DA). The Kyoto Encyclopedia of Genes and Genomes (KEGG) was used for pathway enrichment analysis, and a significant difference in induced sputum metabolomics was observed between moderate and severe COPD. The KEGG analysis revealed that the glycerophospholipid metabolism pathway was downregulated in severe COPD. Due to the critical role of glycerophospholipid metabolism in oxidative stress, significant negative correlations were discovered between glycerophospholipid metabolites and three oxidative stress products (SOD, MPO, and 8-iso-PGF2α). The diagnostic values of SOD, MPO, and 8-iso-PGF2α in induced sputum were found to exhibit high sensitivities and specificities in the prediction of COPD severity. Collectively, this study provides the first identification of the association between induced sputum metabolomic profiles and COPD severity, indicating the potential value of metabolomics in PPPM for COPD management. The study also reveals the correlation between glycerophospholipid metabolites and oxidative stress products and their value for predicting COPD severity. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s13167-020-00227-w.

Indexed as

Chronic obstructive pulmonary disease (COPD)Glycerophospholipid metabolism pathwayInduced sputumLung functionMetabolomicsPredictive preventive personalized medicine (PPPM)

Identifiers

PMID33235638
PMCPMC7680486
OpenAlexW3096505330

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.