Evidence map›Paper›PMID 38743087›Full record

ArticleLung2024

Associations of the Serum KL-6 with Severity and Prognosis in Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease.

Yu Wang, Jun Fei, Juan Xu, Zhen-Yu Cheng, Yi-Cheng Ma, Ju-Hong Wu, Jin Yang, Hui Zhao, Lin Fu

Abstract read
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In one paragraph

Article in Lung, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–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

14 citing papers in PubMed.

  1. Article
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  4. MUC1 in the upper-lower airway inflammatory continuum: an endotype-centered perspective.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025
    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

9 authors.

Yu Wang *Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China.
Jun Fei *Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China.
Juan XuDepartment of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China.
Zhen-Yu ChengDepartment of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China.
Yi-Cheng MaDepartment of Thoracic Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China.
Ju-Hong WuDepartment of Thoracic Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China.
Jin YangDepartment of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China. yangqj1015@foxmail.com.
Hui ZhaoDepartment of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China. zhaohuichenxi@126.com.
Lin FuDepartment of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China. fulindev@126.com.

Funding

the Anhui Provincial Natural Science Foundation 2108085MH251the National Natural Science Foundation Incubation Program of the Second Affiliated Hospital of Anhui Medical University 2020GQFY05the National Natural Science Foundation of China 82270071the Scientific Research of Health Commission in Anhui Province AHWJ2021b091the University Natural Science Research Project of Anhui Province 2023AH030117
6 · The paper itself

Abstract

backgroundAs a biomarker of alveolar-capillary basement membrane injury, Krebs von den Lungen-6 (KL-6) is involved in the occurrence and development of pulmonary diseases. However, the role of the KL-6 in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD) has yet to be elucidated. This prospective study was designed to clarify the associations of the serum KL-6 with the severity and prognosis in patients with AECOPD.

methodsThis study enrolled 199 eligible AECOPD patients. Demographic data and clinical characteristics were recorded. Follow-up was tracked to evaluate acute exacerbation and death. The serum KL-6 concentration was measured via an enzyme-linked immunosorbent assay.

resultsSerum KL-6 level at admission was higher in AECOPD patients than in control subjects. The serum KL-6 concentration gradually elevated with increasing severity of AECOPD. Pearson and Spearman analyses revealed that the serum KL-6 concentration was positively correlated with the severity score, monocyte count and concentrations of C-reactive protein, interleukin-6, uric acid, and lactate dehydrogenase in AECOPD patients during hospitalization. A statistical analysis of long-term follow-up data showed that elevated KL-6 level at admission was associated with longer hospital stays, an increased risk of future frequent acute exacerbations, and increased severity of exacerbation in COPD patients.

conclusionSerum KL-6 level at admission is positively correlated with increased disease severity, prolonged hospital stay and increased risk of future acute exacerbations in COPD patients. There are positive dose-response associations of elevated serum KL-6 with severity and poor prognosis in COPD patients. The serum KL-6 concentration could be a novel diagnostic and prognostic biomarker in AECOPD patients.

Indexed as

BiomarkersC-Reactive ProteinDisease ProgressionInterleukin-6Mucin-1Pulmonary Disease, Chronic ObstructiveSeverity of Illness IndexAgedAged, 80 and overCase-Control StudiesFemaleHumansLeukocyte CountL-Lactate DehydrogenaseMaleMiddle AgedBiomarkersC-Reactive ProteinInterleukin-6L-Lactate DehydrogenaseMUC1 protein, humanMucin-1Uric AcidAcute exacerbation of chronic obstructive pulmonary disease (AECOPD)KL-6PrognosisSeverity

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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.