Evidence mapPaperPMID 42100658Full record

ArticleFrontiers in cellular and infection microbiology2026

A primary study: high-throughput sequencing analysis of amniotic fluid microbiota in 50 high-risk pregnant women during the second trimester.

Junhua Wu, Yanbo Lu, Zhouyong Zheng, Jishan Zheng, Qiang Fu

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Article in Frontiers in cellular and infection microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Junhua Wu *Department of Pediatrics, The affiliated Women and Children's Hospital of Ningbo University, Ningbo, Zhejiang, China.
Yanbo Lu *Department of Pediatrics, The affiliated Women and Children's Hospital of Ningbo University, Ningbo, Zhejiang, China.
Zhouyong ZhengDepartment of Pediatrics, The affiliated Women and Children's Hospital of Ningbo University, Ningbo, Zhejiang, China.
Jishan ZhengDepartment of Pediatrics, The affiliated Women and Children's Hospital of Ningbo University, Ningbo, Zhejiang, China.
Qiang FuDepartment of Pediatrics, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, Hubei, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Whether bacteria exist in the pregnancy uterus without pathological infection has long been a controversial topic. Through this study, we aim to determine whether characteristic amniotic fluid microbiota exists in the uterus of high-risk pregnant women during the second trimester. Methods: This study recruited high-risk pregnant women in the second trimester from September 1, 2024, to August 30, 2025, and recorded their age and gestational age. Amniotic fluid samples were obtained through amniocentesis under strictly sterile conditions, and 16S rRNA high-throughput sequencing was performed on the samples. The inclusion criteria mainly consisted of: advanced maternal age, non-invasive prenatal test results indicating chromosomal abnormalities, abnormal fetal ultrasound findings, history of adverse pregnancy outcomes, and high-risk Down syndrome screening results. Results: This study included a total of 50 high-risk pregnant women who underwent amniocentesis. The results showed that bacteria were present in all amniotic fluid samples, primarily composed of Conclusion: There was bacterial DNA in amniotic fluid of high-risk pregnant women in the second trimester, with

Indexed as

Amniotic FluidBacteriaMicrobiotaPregnancy, High-RiskPregnancy Trimester, SecondAdultAmniocentesisDNA, BacterialFemaleGestational AgeHigh-Throughput Nucleotide SequencingHumansPregnancyRNA, Ribosomal, 16SDNA, BacterialRNA, Ribosomal, 16Samniocentesisamniotic fluidhigh-risk pregnantmicrobiomenext generation sequencingsecond trimester

Identifiers

PMID42100658
PMCPMC13143940

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