Evidence map›Paper›PMID 38915068›Full record

ArticleJournal of translational medicine2024

Siderophore-harboring gut bacteria and fecal siderophore genes for predicting the responsiveness of fecal microbiota transplantation for active ulcerative colitis.

Jingshuang Yan, Guanzhou Zhou, Rongrong Ren, Xiaohan Zhang, Nana Zhang, Zikai Wang, Lihua Peng, Yunsheng Yang

Abstract read
In one paragraph

Article in Journal of translational medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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

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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

2 citing papers in PubMed.

  1. Article
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4 · The record

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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

8 authors.

Jingshuang YanSchool of Medicine, Nankai University, Tianjin, 300071, China.
Guanzhou ZhouSchool of Medicine, Nankai University, Tianjin, 300071, China.
Rongrong RenMicrobiota Laboratory and Microbiota Division, Department of Gastroenterology and Hepatology, the First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China.
Xiaohan ZhangSchool of Medicine, Nankai University, Tianjin, 300071, China.
Nana ZhangMicrobiota Laboratory and Microbiota Division, Department of Gastroenterology and Hepatology, the First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China.
Zikai WangMicrobiota Laboratory and Microbiota Division, Department of Gastroenterology and Hepatology, the First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China.
Lihua PengMicrobiota Laboratory and Microbiota Division, Department of Gastroenterology and Hepatology, the First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China.
Yunsheng YangSchool of Medicine, Nankai University, Tianjin, 300071, China. sunny301ddc@126.com.ORCID 0000-0003-0361-7674

Funding

National High-tech Research and Development Program 2015AA020701National Natural Science Foundation of China 82200609
6 · The paper itself

Abstract

backgroundPredictive markers for fecal microbiota transplantation (FMT) outcomes in patients with active ulcerative colitis (UC) are poorly defined. We aimed to investigate changes in gut microbiota pre- and post-FMT and to assess the potential value in determining the total copy number of fecal bacterial siderophore genes in predicting FMT responsiveness.

methodsPatients with active UC (Mayo score ≥ 3) who had undergone two FMT procedures were enrolled. Fecal samples were collected before and 8 weeks after each FMT session. Patients were classified into clinical response and non-response groups, based on their Mayo scores. The fecal microbiota profile was accessed using metagenomic sequencing, and the total siderophore genes copy number via quantitative real-time polymerase chain reaction. Additionally, we examined the association between the total siderophore genes copy number and FMT efficacy.

resultsSeventy patients with UC had undergone FMT. The clinical response and remission rates were 50% and 10% after the first FMT procedure, increasing to 72.41% and 27.59% after the second FMT. The cumulative clinical response and clinical remission rates were 72.86% and 25.71%. Compared with baseline, the response group showed a significant increase in Faecalibacterium, and decrease in Enterobacteriaceae, consisted with the changes of the total bacterial siderophore genes copy number after the second FMT (1889.14 vs. 98.73 copies/ng, P < 0.01). Virulence factor analysis showed an enriched iron uptake system, especially bacterial siderophores, in the pre-FMT response group, with a greater contribution from Escherichia coli. The total baseline copy number was significantly higher in the response group than non-response group (1889.14 vs. 94.86 copies/ng, P < 0.01). A total baseline copy number cutoff value of 755.88 copies/ng showed 94.7% specificity and 72.5% sensitivity in predicting FMT responsiveness.

conclusionsA significant increase in Faecalibacterium, and decrease in Enterobacteriaceae and the total fecal siderophore genes copy number were observed in responders after FMT. The siderophore genes and its encoding bacteria may be of predictive value for the clinical responsiveness of FMT to active ulcerative colitis.

Indexed as

Colitis, UlcerativeFecal Microbiota TransplantationFecesGastrointestinal MicrobiomeSiderophoresAdultBacteriaFemaleGene DosageGenes, BacterialHumansMaleMiddle AgedROC CurveTreatment OutcomeSiderophoresClinical responseFecal microbiota transplantationSiderophore genesUlcerative colitis

Identifiers

PMID38915068
PMCPMC11194913

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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.