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Do Maternal Microbes Shape Newborn Oral Microbes?

Shengrong Wu1,2, Fei Yu1, Liya Ma1

  • 1Department of Prosthodontics, School of Stomatology, Lanzhou University, No. 199 Donggang Xi Lu, Lanzhou, 730000 Gansu Province China.

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|January 28, 2021
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The maternal microbiome may influence the neonatal oral microbiome. This study explored connections between maternal oral bacteria, amniotic fluid, placenta, and infant oral microbes.

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CorrelationHigh-throughput sequencing (HTS)Initial microbiomeMaternal microbiome

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Area of Science:

  • Microbiology
  • Neonatal Health
  • Maternal-Fetal Medicine

Background:

  • The early oral microbiome is crucial for infant oral health and immune development.
  • The link between maternal and neonatal oral microbial communities is not well understood.

Purpose of the Study:

  • To investigate the correlation between maternal and neonatal oral microbiomes.
  • To explore potential transmission routes of oral microbes from mother to neonate.

Main Methods:

  • Collected samples from maternal oral cavity, amniotic fluid, placenta, and neonatal oral cavity from 25 mother-neonate pairs.
  • Utilized high-throughput 16S rRNA sequencing on the Illumina MiSeq platform.
  • Analyzed microbial community structure and correlations using Principal Coordinate Analysis (PCoA).

Main Results:

  • Identified up to 635 shared Operational Taxonomic Units (OTUs) across maternal, amniotic fluid, placental, and neonatal samples.
  • Observed similarities in microbial community structures between the four sample groups.
  • Dominant shared bacterial genera included *Streptococcus*, *Fusobacterium*, and *Prevotella*.

Conclusions:

  • Suggests a potential correlation between maternal and neonatal oral microbiomes.
  • Indicates possible microbial transmission via amniotic fluid and placenta.