Evidence map›Paper›PMID 35751044›Full record

ArticleBMC infectious diseases2022

Longitudinal alterations of the gut mycobiota and microbiota on COVID-19 severity.

Yuichi Maeda, Daisuke Motooka, Takahiro Kawasaki, Hiroya Oki, Yoshimi Noda, Yuichi Adachi, Takayuki Niitsu, Shota Okamoto, Kentaro Tanaka, Kiyoharu Fukushima and 10 more

Abstract read
In one paragraph

Article in BMC infectious diseases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

26 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  13. Modulatory role ofiScience · 2024
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  17. Microorganisms · 2024
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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

20 authors.

Yuichi Maeda *Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, Osaka University, Suita, Japan.
Daisuke Motooka *WPI Immunology Frontier Research Center, Osaka University, Suita, Japan.
Takahiro KawasakiDepartment of Respiratory Medicine, Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Japan.
Hiroya OkiDepartment of Infection Metagenomics, Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, Japan.
Yoshimi NodaDepartment of Respiratory Medicine, Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Japan.
Yuichi AdachiDepartment of Respiratory Medicine, Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Japan.
Takayuki NiitsuDepartment of Respiratory Medicine, Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Japan.
Shota OkamotoLaboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, Osaka University, Suita, Japan.
Kentaro TanakaWPI Immunology Frontier Research Center, Osaka University, Suita, Japan.
Kiyoharu FukushimaWPI Immunology Frontier Research Center, Osaka University, Suita, Japan.
Saori AmiyaDepartment of Respiratory Medicine, Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Japan.
Reina HaraDepartment of Respiratory Medicine, Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Japan.
Eri Oguro-IgashiraDepartment of Respiratory Medicine, Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Japan.
Takanori MatsukiNational Hospital Organization Osaka Toneyama Medical Center, Osaka, Japan.
Haruhiko HirataDepartment of Respiratory Medicine, Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Japan.
Yoshito TakedaDepartment of Respiratory Medicine, Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Japan.
Hiroshi KidaNational Hospital Organization Osaka Toneyama Medical Center, Osaka, Japan.
Atsushi KumanogohWPI Immunology Frontier Research Center, Osaka University, Suita, Japan.
Shota NakamuraWPI Immunology Frontier Research Center, Osaka University, Suita, Japan. nshota@gen-info.osaka-u.ac.jp.
Kiyoshi TakedaLaboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, Osaka University, Suita, Japan. ktakeda@ongene.med.osaka-u.ac.jp.

Funding

AMED-CREST grants 18gm1010005Japan Agency for Medical Research and Development 20fk0108265
6 · The paper itself

Abstract

backgroundThe impact of SARS-CoV-2 infection on the gut fungal (mycobiota) and bacterial (microbiota) communities has been elucidated individually. This study analyzed both gut mycobiota and microbiota and their correlation in the COVID-19 patients with severe and mild conditions and follow-up to monitor their alterations after recovery.

methodsWe analyzed the gut mycobiota and microbiota by bacterial 16S and fungal ITS1 metagenomic sequencing of 40 severe patients, 38 mild patients, and 30 healthy individuals and reanalyzed those of 10 patients with severe COVID-19 approximately 6 months after discharge.

resultsThe mycobiota of the severe and mild groups showed lower diversity than the healthy group, and in some, characteristic patterns dominated by a single fungal species, Candida albicans, were detected. Lower microbial diversity in the severe group was observed, but no differences in its diversity or community structure were detected between the mild and healthy groups. The microbiota of the severe group was characterized by an increase in Enterococcus and Lactobacillus, and a decrease in Faecalibacterium and Bacteroides. The abundance of Candida was positively correlated with that of Enterococcus in patients with COVID-19. After the recovery of severe patients, alteration of the microbiota remained, but the mycobiota recovered its diversity comparable to that of mild and healthy groups.

conclusionIn mild cases, the microbiota is stable during SARS-CoV-2 infection, but in severe cases, alterations persist for 6 months after recovery.

Indexed as

COVID-19Gastrointestinal MicrobiomeMicrobiotaEnterococcusFecesHumansSARS-CoV-2CandidaCOVID-19EnterococcusGutMicrobiotaMycobiota

Identifiers

PMID35751044
PMCPMC9233337

What OpenQuestion holds

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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.