Evidence map›Paper›PMID 34622310›Full record

Trial reportClinical oral investigations2022

Clinical study showing a lower abundance of Neisseria in the oral microbiome aligns with low birth weight pregnancy outcomes.

Changchang Ye, Meng You, Ping Huang, Zhongyi Xia, Allan Radaic, Jing Tang, Wanhong Wu, Yafei Wu, Yvonne Kapila

Open access · hybridAbstract readClinical Trial
In one paragraph

Trial report in Clinical oral investigations, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.4field-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

16 citing papers in PubMed, 24 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Interactions with alloparents are associated with the diversity of infant skin and fecal bacterial communities in Chicago, United States.American journal of human biology : the official journal of the Human Biology Council · 2025
    Article
  11. Review
  12. Article
  13. Oral microbiome and preterm birth.Frontiers in medicine · 2023
    Article
  14. Article
  15. Article
  16. Salivary metagenomic profiling ofJournal of oral biology and craniofacial research
    Article
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

9 authors at 2 institutions in 2 countries.

Changchang YeState Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Renmin South Road 3rd section 14#, 610041, Chengdu, China.
Meng YouState Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Renmin South Road 3rd section 14#, 610041, Chengdu, China.
Ping HuangState Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Renmin South Road 3rd section 14#, 610041, Chengdu, China.
Zhongyi XiaState Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Renmin South Road 3rd section 14#, 610041, Chengdu, China.
Allan RadaicDepartment of Orofacial Sciences, Division of Periodontology, School of Dentistry, University of California San Francisco, Box 0422, UCSF, San Francisco, CA, 94143-0422, USA.
Jing TangState Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Renmin South Road 3rd section 14#, 610041, Chengdu, China.
Wanhong WuState Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Renmin South Road 3rd section 14#, 610041, Chengdu, China.
Yafei WuState Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Renmin South Road 3rd section 14#, 610041, Chengdu, China. yfw1110@163.com.
Yvonne KapilaDepartment of Orofacial Sciences, Division of Periodontology, School of Dentistry, University of California San Francisco, Box 0422, UCSF, San Francisco, CA, 94143-0422, USA. Yvonne.Kapila@ucsf.edu.ORCID http://orcid.org/0000-0003-1330-0654
Sichuan University · CNUniversity of California, San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe objective of this study was to examine the association between the oral microbiome and pregnancy outcomes, specifically healthy or preterm low birth weight (PLBW) in individuals with and without periodontal disease (PD). MATERIAL AND

methodsIn this prospective clinical trial, we recruited 186 pregnant women, 17 of whom exhibited PD and delivered PLBW infants (PD-PLBW group). Of the remaining women, 155 presented PD and delivered healthy infants; 18 of these subjects with similar periodontal condition and age matched to the PD-PLBW group, and they became the PD-HD group. From the total group, 11 women exhibited healthy gingiva and had a healthy delivery (HD) and healthy infants (H-HD group), and 3 exhibited healthy gingiva and delivered PLBW infants (H-PLBW group). Periodontal parameters were recorded, and subgingival plaque and serum were collected during 26-28 gestational weeks. For the plaque samples, microbial abundance and diversity were accessed by 16S rRNA sequencing.

resultsWomen with PD showed an enrichment in the genus Porphyromonas, Treponema, and Filifactor, whereas women with healthy gingiva showed an enrichment in Streptococcus, Actinomyces, and Corynebacterium, independently of the birth status. Although no significant difference was found in the beta diversity between the 4 groups, women that had PLBW infants presented a significantly lower abundance of the genus Neisseria, independently of PD status.

conclusionLower levels of Neisseria align with preterm low birth weight in pregnant women, whereas a higher abundance of Treponema, Porphyromonas, Fretibacterium, and Filifactor and a lower abundance of Streptococcus may contribute to periodontal disease during pregnancy. CLINICAL RELEVANCE: The oral commensal Neisseria have potential in the prediction of PLBW.

Indexed as

MicrobiotaPremature BirthFemaleHumansInfantInfant, Low Birth WeightInfant, NewbornNeisseriaPregnancyPregnancy OutcomeRNA, Ribosomal, 16SRNA, Ribosomal, 16SAdverse pregnancy outcomesNeisseriaOral microbiotaPeriodontal diseaseSmall for gestational age

Identifiers

PMID34622310
PMCPMC8898250
OpenAlexW3202843998

What OpenQuestion holds

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LicenceCC BY
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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.