Evidence map›Paper›PMID 32197601›Full record

ArticleBMC pulmonary medicine2020

Pneumocystis jirovecii colonization and its association with pulmonary diseases: a multicenter study based on a modified loop-mediated isothermal amplification assay.

Ting Xue, Zhuang Ma, Fan Liu, Weiqin Du, Li He, Jinyan Wang, Chunli An

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in BMC pulmonary medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

16 citing papers in PubMed, 25 citations in OpenAlex.

  1. Pneumocystis jirovecii pneumonia and prophylaxis in patients with solid tumours: a narrative review.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
    Review
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  5. Immune Responses toJournal of inflammation research · 2026
    Review
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  8. Observational
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  10. Review
  11. Study on the Prevalence ofBiomedicines · 2023
    Article
  12. Post-COVID-19Access microbiology · 2023
    Article
  13. Article
  14. Genetic Polymorphisms ofPolish journal of microbiology · 2022
    Article
  15. Article
  16. Review
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

7 authors at 3 institutions in 1 country.

Ting XueDepartment of Microbiology and Parasitology, College of Basic Medical Science, China Medical University, 77 Puhe Road, Shenyang, People's Republic of China.
Zhuang MaDepartment of Respiratory Medicine, General Hospital of Shenyang Military Command, Shenyang, People's Republic of China.
Fan LiuDepartment of Respiratory Internal Medicine, the First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China.
Weiqin DuDepartment of Medical Laboratory, the Eleventh Affiliated Hospital of Shanxi Medical University, Lvliang, People's Republic of China.
Li HeDepartment of Microbiology and Parasitology, College of Basic Medical Science, China Medical University, 77 Puhe Road, Shenyang, People's Republic of China.
Jinyan WangDepartment of Immunology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China.
Chunli AnDepartment of Microbiology and Parasitology, College of Basic Medical Science, China Medical University, 77 Puhe Road, Shenyang, People's Republic of China. cmucl@126.com.
China Medical University · CNGeneral Hospital of Shenyang Military Region · CNShanxi Medical University · CN

Funding

Natural Science Foundation of China 81370189
6 · The paper itself

Abstract

backgroundPneumocystis jirovecii (P. jirovecii) is an opportunistic fungal pathogen and the role of its colonization in pulmonary diseases has become a popular focus in recent years. The aim of this study was to develop a modified loop-mediated isothermal amplification (LAMP) assay for detection of Pneumocystis jirovecii (P. jirovecii) DNA amongst non-HIV patients with various pulmonary diseases and use it to examine the prevalence and assess the association of P. jirovecii colonization with clinical characteristics of these diseases.

methodsWe modified the previously reported LAMP assay for P. jirovecii by adding real-time detection. This method was used to detect P. jirovecii colonization in pulmonary samples collected from 403 non-HIV patients with various pulmonary diseases enrolled from 5 hospitals in China. We determined the prevalence of P. jirovecii colonization in 7 types of pulmonary diseases and assessed the association of P. jirovecii colonization with clinical characteristics of these diseases.

resultsThe modified LAMP assay showed no cross-reactivity with other common pulmonary microbes and was 1000 times more sensitive than that of conventional PCR. Using the modified LAMP assay, we detected P. jirovecii colonization in 281 (69.7%) of the 403 patients enrolled. P. jirovecii colonization was more common in interstitial lung diseases than in chronic obstructive pulmonary disease (COPD) (84.6% vs 64.5%, P < 0.05). Patients with acute exacerbation of COPD had a higher prevalence of P. jirovecii colonization compared to patients with stabilized COPD (67.4% vs 43.3%, P < 0.05). P. jirovecii colonization was associated with decreased pulmonary function, increased levels of 1,3-β-D-glucan and C-reactive protein, and decreased levels of CD4+ T-cell counts (P < 0.05 for each). Approximately 70% of P. jirovecii colonized patients had confections with other fungi or bacteria.

conclusionsWe developed a modified LAMP assay for detecting P. jirovecii. Our multi-center study of 403 patients supports that P. jirovecii colonization is a risk factor for the development of pulmonary diseases and highlights the need to further study the pathogenesis and transmission of P. jirovecii colonization in pulmonary diseases.

Indexed as

AgedChinaDNA, FungalFemaleHumansLung Diseases, InterstitialMaleMiddle AgedMolecular Diagnostic TechniquesNucleic Acid Amplification TechniquesPneumocystis cariniiPneumonia, PneumocystisPrevalencePulmonary Disease, Chronic ObstructiveRetrospective StudiesRisk FactorsDNA, FungalColonizationLoop-mediated isothermal amplificationP. jiroveciiRespiratory diseases

Identifiers

PMID32197601
PMCPMC7085144
OpenAlexW3011640357

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.