Evidence map›Paper›PMID 34285336›Full record

ArticleExperimental & molecular medicine2021

S100A9 in adult asthmatic patients: a biomarker for neutrophilic asthma.

Quang Luu Quoc, Youngwoo Choi, Tra Cao Thi Bich, Eun-Mi Yang, Yoo Seob Shin, Hae-Sim Park

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Experimental & molecular medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
7.6field-weighted citation impact, top 2% 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

34 citing papers in PubMed, 66 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Simulated burn pit smoke condensates cause sustained impact on human airway epithelial cells.Toxicological sciences : an official journal of the Society of Toxicology · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. New targets for type 2-low asthma.The Korean journal of internal medicine · 2024
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Quang Luu QuocDepartment of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea.ORCID http://orcid.org/0000-0003-2183-8171
Youngwoo ChoiDepartment of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea.
Tra Cao Thi BichDepartment of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea.
Eun-Mi YangDepartment of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea.
Yoo Seob ShinDepartment of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea.
Hae-Sim ParkDepartment of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea. hspark@ajou.ac.kr.ORCID http://orcid.org/0000-0003-2614-0303
Ajou University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The biomarkers and therapeutic targets of neutrophilic asthma (NA) are poorly understood. Although S100 calcium-binding protein A9 (S100A9) has been shown to correlate with neutrophil activation, its role in asthma pathogenesis has not been clarified. This study investigated the mechanism by which S100A9 is involved in neutrophil activation, neutrophil extracellular trap (NET)-induced airway inflammation, and macrophage polarization in NA. The S100A9 levels (by ELISA) in sera/culture supernatant of peripheral blood neutrophils (PBNs) and M0 macrophages from asthmatic patients were measured and compared to those of healthy controls (HCs). The function of S100A9 was evaluated using airway epithelial cells (AECs) and PBNs/M0 macrophages from asthmatic patients, as well as a mouse asthma model. The serum levels of S100A9 were higher in NA patients than in non-NA patients, and there was a positive correlation between serum S100A9 levels and sputum neutrophil counts (r = 0.340, P = 0.005). Asthmatic patients with higher S100A9 levels had lower PC

Indexed as

A549 CellsAdultAnimalsAsthmaBiomarkersBronchoalveolar Lavage FluidCalgranulin BDisease Models, AnimalExtracellular TrapsFemaleHumansLipopolysaccharidesLungMacrophagesMiceMice, Inbred BALB CBiomarkersCalgranulin BLipopolysaccharidesS100A9 protein, humanS100A9 protein, mouse

Identifiers

PMID34285336
PMCPMC8333352
OpenAlexW3184473427

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.