Evidence map›Paper›PMID 35618276›Full record

ArticleThe European respiratory journal2022

Indoor microbiome, microbial and plant metabolites, chemical compounds, and asthma symptoms in junior high school students: a multicentre association study in Malaysia.

Yu Sun, Mei Zhang, Zheyuan Ou, Yi Meng, Yang Chen, Ruqin Lin, Jamal Hisham Hashim, Zailina Hashim, Gunilla Wieslander, Qingsong Chen and 2 more

Open access · bronzeAbstract readMulticenter Study
In one paragraph

Article in The European respiratory journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
4.7field-weighted citation impact, top 4% 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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Pooled it
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  5. [Analysis and Projection of the Burden of Chronic Respiratory Diseases Attributable to Smoking in China, 1990-2021].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2026
    Article
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  10. Indoor bioaerosols and asthma: Overview, implications, and mitigation strategies.The Journal of allergy and clinical immunology · 2025
    Review
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  15. Review
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  18. The indoors microbiome and human health.Nature reviews. Microbiology · 2024
    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

12 authors at 5 institutions in 4 countries.

Yu SunGuangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, Guangzhou, PR China.ORCID 0000-0003-4799-0745
Mei ZhangGuangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, Guangzhou, PR China.
Zheyuan OuGuangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, Guangzhou, PR China.
Yi MengGuangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, Guangzhou, PR China.
Yang ChenGuangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, Guangzhou, PR China.
Ruqin LinGuangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, Guangzhou, PR China.
Jamal Hisham HashimDept of Environmental Health and Occupational Safety, Faculty of Health Sciences, Universiti Selangor, Shah Alam, Selangor, Malaysia.
Zailina HashimDept of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang, Selangor, Malaysia.ORCID 0000-0003-0708-7447
Gunilla WieslanderOccupational and Environmental Medicine, Dept of Medical Science, University Hospital, Uppsala University, Uppsala, Sweden.
Qingsong ChenGuangdong Provincial Engineering Research Center of Public Health Detection and Assessment, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, PR China.
Dan NorbäckOccupational and Environmental Medicine, Dept of Medical Science, University Hospital, Uppsala University, Uppsala, Sweden.ORCID 0000-0002-5174-6668
Xi FuGuangdong Provincial Engineering Research Center of Public Health Detection and Assessment, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, PR China fuxi@gdpu.edu.cn.
South China Agricultural University · CNGuangdong Pharmaceutical University · CNUppsala University Hospital · SEUniversiti Putra Malaysia · MYUniversity of Selangor · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIndoor microbial exposure is associated with asthma, but the health effects of indoor metabolites and chemicals have not been comprehensively assessed.

methodsWe collected classroom dust from 24 junior high schools in three geographically distanced areas in Malaysia (Johor Bahru, Terengganu and Penang), and conducted culture-independent high-throughput microbiome and untargeted metabolomics/chemical profiling.

results1290 students were surveyed for asthma symptoms (wheeze). In each centre, we found significant variation in the prevalence of wheeze among schools, which could be explained by personal characteristics and air pollutants. Large-scale microbial variations were observed between the three centres; the potential protective bacteria were mainly from phyla Actinobacteria in Johor Bahru, Cyanobacteria in Terengganu and Proteobacteria in Penang. In total, 2633 metabolites and chemicals were characterised. Many metabolites were enriched in low-wheeze schools, including plant secondary metabolites flavonoids/isoflavonoids (isoliquiritigenin, formononetin, astragalin), indole and derivatives (indole, serotonin, 1

conclusionsThis is the first association study between high-throughput indoor chemical profiling and asthma symptoms. The consistent results from the three centres indicate that indoor metabolites/chemicals could be a better indicator than the indoor microbiome for environmental and health assessments, providing new insights for asthma prediction, prevention and control.

Indexed as

Air Pollution, IndoorAsthmaMicrobiotaBacteriaDustHumansIndolesMalaysiaRespiratory SoundsStudentsDustIndoles

Identifiers

PMID35618276
PMCPMC9647074
OpenAlexW4281555793

What OpenQuestion holds

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LicenceCC BY-NC
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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.