Evidence map›Paper›PMID 35643501›Full record

ArticleRespiratory research2022

Immunophenotype in acute exacerbation of chronic obstructive pulmonary disease: a cross-sectional study.

Xiao-Feng Xiong, Min Zhu, Hong-Xia Wu, Li-Li Fan, De-Yun Cheng

Open access · goldAbstract read
In one paragraph

Article in Respiratory research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

17 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
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  3. Regulatory T cells in hypoxic environments.Frontiers in immunology · 2026
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  7. Exploring the Mechanisms of Lijin Fang on Treg/Th17 Cell Imbalance in COPD Based on Network Pharmacology.International journal of chronic obstructive pulmonary disease · 2025
    Article
  8. Article
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  12. Article
  13. Review
  14. Article
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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

5 authors at 1 institution in 1 country.

Xiao-Feng XiongDepartment of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, NO. 37 Guoxue Alley, Chengdu, Sichuan, 610041, People's Republic of China.
Min ZhuDepartment of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, NO. 37 Guoxue Alley, Chengdu, Sichuan, 610041, People's Republic of China.
Hong-Xia WuDepartment of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, NO. 37 Guoxue Alley, Chengdu, Sichuan, 610041, People's Republic of China.
Li-Li FanDepartment of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, NO. 37 Guoxue Alley, Chengdu, Sichuan, 610041, People's Republic of China.
De-Yun ChengDepartment of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, NO. 37 Guoxue Alley, Chengdu, Sichuan, 610041, People's Republic of China. chengdeyunscu@163.com.ORCID http://orcid.org/0000-0003-3805-8542
Sichuan University · CN

Funding

science and technology support project of Sichuan province 2015SZ0234-3
6 · The paper itself

Abstract

backgroundChronic obstructive pulmonary disease (COPD) is a heterogeneous disease, and the immune inflammatory response is thought to play an important role in pathogenesis. However, the immunophenotype of patients with COPD is unknown. Herein, we evaluated the immunophenotype of patients with acute exacerbation of COPD (AECOPD).

methodsA cross-sectional study was conducted in West China Hospital from September 2018 to October 2019. The proportion of CD4 + T lymphocyte subtypes (Th1, Th2, Th17 and Treg) and levels of serum cytokines in the peripheral blood of patients with AECOPD, stable COPD (SCOPD), healthy smokers (HSs)and healthy controls (HCs) were evaluated.

resultsA total of 15 HCs, 19 HSs, 42 patients with SCOPD, and 55 patients with AECOPD were included. Compared to patients with SCOPD, Th1 cells, Th17 cells, Treg cell ratio, Th1/Th2 cell ratio, and the levels of C-reactive protein, interleukin (IL)-6, and IL-10 were significantly increased in patients with AECOPD (P < 0.001), while the proportion of Th2 cells was significantly reduced (P < 0.01). The proportion of Th17 cells was positively correlated with COPD Assessment Test score (r = 0.266, P = 0.009), modified Medical Research Council dyspnea score (r = 0.858, P < 0.0001), and Th1 cell ratio (r = 0.403, P < 0.0001) and negatively correlated with forced vital capacity (r = - 0.367, P = 0.009) and proportion of Th2 cells (r = - 0.655, P < 0.0001).

conclusionsThe immunophenotype of patients with AECOPD shows abnormal activation of Th1, Th17, and Treg cells. There is a correlation between the proportion of Th17 cells and the severity of COPD; therefore, this may represent a novel index for the evaluation of COPD severity.

trial registrationChina Clinical Trials Registry, ChiCTR1800018452, registered 19 September 2018, https://www.chictr.org.cn/index.aspx .

Indexed as

Pulmonary Disease, Chronic ObstructiveCross-Sectional StudiesHumansInterleukin-6Th17 CellsTh1 CellsTh2 CellsInterleukin-6Acute exacerbationCD4 + T cellsChronic obstructive pulmonary diseaseImmunity

Identifiers

PMID35643501
PMCPMC9145461
OpenAlexW4281857216

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.