Evidence map›Paper›PMID 34222033›Full record

ArticleFrontiers in cellular and infection microbiology2021

Preterm Birth Is Correlated With Increased Oral Originated Microbiome in the Gut.

Chunhua Yin, Jingrui Chen, Xuena Wu, Yeling Liu, Quan He, Ying Cao, Yi-E Huang, Sisun Liu

Open access · goldAbstract read
In one paragraph

Article in Frontiers in cellular and infection microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 11% 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, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Pooled it
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  8. Frontiers in microbiology · 2025
    Article
  9. Dynamic changes in the pregnancy microbiome and their role in preterm birth.Frontiers in cellular and infection microbiology · 2025
    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

8 authors at 4 institutions in 1 country.

Chunhua YinDepartment of Obstetrics and Gynecology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
Jingrui ChenDepartment of Obstetrics and Gynecology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
Xuena WuDepartment of Obstetrics and Gynecology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
Yeling LiuAnatomy and Pathology Department, Jiangxi Health Vocational College, Nanchang, China.
Quan HeDepartment of Obstetrics and Gynecology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
Ying CaoNursing Department, The First Affiliated Hospital of Nanchang University, Nanchang, China.
Yi-E HuangShenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen, China.
Sisun LiuDepartment of Obstetrics and Gynecology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
First Affiliated Hospital of Nanchang University · CNJiangxi Maternal and Child Health Hospital · CNJinan University · CNNanchang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Preterm birth is one of the leading causes of perinatal morbidity and mortality. Gut microbiome dysbiosis is closely related to adverse pregnancy outcomes. However, the role of the gut microbiome in the pathogenesis of preterm birth remains poorly studied. Method: We collected fecal samples from 41 women (cases presenting with threatened preterm labor =19, 11 of which delivered preterm; gestational age-matched no-labor controls, all of which delivered at term = 22) were recruited for the study. We performed 16S rRNA amplicon sequencing to compare the composition of the gut microbiome in threatened preterm labor cases and controls and among women who delivered preterm and at term. By annotating taxonomic biomarkers with the Human Oral Microbiome Database, we observed an increased abundance of potential oral-to-gut bacteria in preterm patients. Results: Patients with preterm birth showed a distinct gut microbiome dysbiosis compared with those who delivered at term. Opportunistic pathogens, particularly Conclusions: This study suggests that patients who deliver preterm demonstrate altered gut microbiome that may contain higher common oral bacteria.

Indexed as

Gastrointestinal MicrobiomeMicrobiotaPremature BirthDysbiosisFemaleHumansInfant, NewbornPregnancyRNA, Ribosomal, 16SRNA, Ribosomal, 16Sbacteria translocationgut microbiomematernal gut microbiomepreterm birthpreterm birth subtypes

Identifiers

PMID34222033
PMCPMC8248533
OpenAlexW3174033840

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.