Evidence map›Paper›PMID 30157804›Full record

ArticleBMC infectious diseases2018

High expression of HMGB1 in children with refractory Mycoplasma pneumoniae pneumonia.

Ying Ding, Chu Chu, Yuqin Li, Gen Li, Xiaoli Lei, Weifang Zhou, Zhengrong Chen

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 6% 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

43 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

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  16. Total Flavonoids fromMolecules (Basel, Switzerland) · 2023
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  18. Extracellular Vesicles Released from Macrophages Infected withInternational journal of molecular sciences · 2023
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  19. Infectious and Inflammatory Pathways to Cough.Annual review of physiology · 2023
    Review
  20. Article
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 1 institution in 1 country.

Ying DingDepartment of Infectious Disease, Children's Hospital of Soochow University, Suzhou, 215003, China.
Chu ChuDepartment of Infectious Disease, Children's Hospital of Soochow University, Suzhou, 215003, China.
Yuqin LiDepartment of Infectious Disease, Children's Hospital of Soochow University, Suzhou, 215003, China.
Gen LiDepartment of Infectious Disease, Children's Hospital of Soochow University, Suzhou, 215003, China.
Xiaoli LeiDepartment of Infectious Disease, Children's Hospital of Soochow University, Suzhou, 215003, China.
Weifang ZhouDepartment of Infectious Disease, Children's Hospital of Soochow University, Suzhou, 215003, China. zwf_1969@163.com.ORCID http://orcid.org/0000-0001-6088-4977
Zhengrong ChenDepartment of Respiratory Disease, Children's Hospital of Soochow University, Suzhou, 215003, China. chen_zheng_rong@163.com.
Soochow University · CN

Funding

Jiangsu Provincial Medical Youth Talent QNRC2016766National Natural Science Foundation of China 81771676Science and Technology Projects of Suzhou sanitary bureau SS201535
6 · The paper itself

Abstract

backgroundIncreasing numbers of refractory or severe, even fatal, cases of Mycoplasma pneumoniae infections have been reported in recent years. Excessive inflammatory responses play a vital role in the pathogenesis of refractory M. pneumoniae pneumonia (RMPP). HMGB1 is an actively secreted cytokine produced by macrophages and other inflammatory cells that participates in various infectious diseases. The present study aimed to explore the role and clinical significance of HMGB1 in children with RMPP and the potential mechanism of HMGB1 expression.

methodsFour hundred and fifty-two children diagnosed with M. pneumoniae pneumonia, including 108 children with RMPP, were enrolled from January 2013 to December 2015 at the Children's Hospital of Soochow University. HMGB1, TNF-α, and IL-6 in peripheral blood from RMPP and non-RMPP (NRMPP) cases were detected by real-time PCR and ELISA. Lipid-associated membrane proteins (LAMPs) were extracted from live M. pneumoniae and prepared at different concentrations for stimulation of THP-1 cells. After coculture with LAMPs, HMGB1, TNF-α, IL-6, RAGE, TLR2, and TLR4 in THP-1 cells were detected by real-time PCR.

resultsOccurrences of cough, fever, and abnormal lung signs were more frequent in RMPP cases compared with NRMPP cases (all p < 0.05). Children with RMPP had longer hospital stays than children with NRMPP (p < 0.05). Different distributions of lymphocytes were noted between RMPP and NRMPP cases. HMGB1, TNF-α, and IL-6 levels were significantly higher in RMPP cases compared with NRMPP cases (all p < 0.05). HMGB1 had good diagnostic ability to differentiate RMPP with AUC of 0.876, sensitivity of 0.833, and specificity of 0.824 compared with TNF-α and IL-6. HMGB1 expression in THP-1 cells was increased by stimulation with 10 μg/ml LAMPs. TLR2 expression was increased after stimulation with 6 μg/ml LAMPs. HMGB1 level was positively associated with TNF-α, IL-6, and TLR2 levels.

conclusionsHMGB1 is a good diagnostic biomarker for differentiating RMPP and NRMPP. LAMPs from M. pneumoniae may induce HMGB1 expression in immune cells through the TLR2 pathway. Further in vitro and in vivo studies are needed for the development of a new treatment strategy to inhibit the HMGB1 pathway, thereby preventing the inflammation in RMPP.

Indexed as

AdolescentBiomarkersCells, CulturedChildChild, PreschoolCommunity-Acquired InfectionsDrug Resistance, BacterialFemaleHMGB1 ProteinHumansInfantLymphocytesMaleMycoplasma pneumoniaePneumonia, MycoplasmaTreatment FailureBiomarkersHMGB1 ProteinHMGB1Lipid-associated membrane proteins (LAMPs)M. Pneumoniae pneumoniaRMPP

Identifiers

PMID30157804
PMCPMC6116361
OpenAlexW2889418418

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.