Evidence map›Paper›PMID 37591927›Full record

SynthesisPediatric research2024

Investigating prenatal and perinatal factors on meconium microbiota: a systematic review and cohort study.

Jenni Turunen, Mysore V Tejesvi, Niko Paalanne, Tytti Pokka, Sajeen Bahadur Amatya, Surbhi Mishra, Anna Kaisanlahti, Justus Reunanen, Terhi Tapiainen

Abstract readSystematic Review
In one paragraph

Synthesis in Pediatric research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

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

24 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Pediatric and adult point of view on the gut-kidney axis in CKD.Pediatric nephrology (Berlin, Germany) · 2026
    Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. 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.

Jenni TurunenResearch Unit of Clinical Medicine, University of Oulu, Oulu, Finland. jenni.turunen@oulu.fi.
Mysore V TejesviBiocenter Oulu, University of Oulu, Oulu, Finland.
Niko PaalanneResearch Unit of Clinical Medicine, University of Oulu, Oulu, Finland.
Tytti PokkaResearch Unit of Clinical Medicine, University of Oulu, Oulu, Finland.
Sajeen Bahadur AmatyaBiocenter Oulu, University of Oulu, Oulu, Finland.
Surbhi MishraBiocenter Oulu, University of Oulu, Oulu, Finland.
Anna KaisanlahtiBiocenter Oulu, University of Oulu, Oulu, Finland.
Justus ReunanenBiocenter Oulu, University of Oulu, Oulu, Finland.
Terhi TapiainenResearch Unit of Clinical Medicine, University of Oulu, Oulu, Finland.

Funding

Academy of Finland for a Clinical ResearchPäivikki and Sakari Sohlberg FoundationPediatric Research FoundationSnellman FoundationUniversity of Oulu
6 · The paper itself

Abstract

backgroundThe first-pass meconium has been suggested as a proxy for the fetal gut microbiota because it is formed in utero. This systematic review and cohort study investigated how pre- and perinatal factors influence the composition of the meconium microbiota.

methodsWe performed the systematic review using Covidence by searching PubMed, Scopus, and Web of Science databases with the search terms "meconium microbiome" and "meconium microbiota". In the cohort study, we performed 16 S rRNA gene sequencing on 393 meconium samples and analyzed the sequencing data using QIIME2.

resultsOur systematic review identified 69 studies exploring prenatal factors, immediate perinatal factors, and microbial composition in relation to subsequent health of infants but gave only limited comparative evidence regarding factors related to the composition of the meconium microbiota. The cohort study pointed to a low-biomass microbiota consisting of the phyla Firmicutes, Proteobacteria and Actinobacteriota and the genera Staphylococcus, Escherichia-Shigella and Lactobacillus, and indicated that immediate perinatal factors affected the composition of the meconium microbiota more than did prenatal factors.

conclusionsThis finding supports the idea that the meconium microbiota mostly starts developing during delivery. IMPACT: It is unclear when the first-pass meconium microbiota develops, and what are the sources of the colonization. In this systematic review, we found 69 studies exploring prenatal factors, immediate perinatal factors, and microbial composition relative to subsequent health of infants, but there was no consensus on the factors affecting the meconium microbiota development. In this cohort study, immediate perinatal factors markedly affected the meconium microbiota development while prenatal factors had little effect on it. As the meconium microbiota composition was influenced by immediate perinatal factors, the present study supports the idea that the initial gut microbiota develops mainly during delivery.

Indexed as

Gastrointestinal MicrobiomeMicrobiotaBacteriaCohort StudiesFemaleHumansInfantInfant, NewbornMeconiumPregnancyRNA, Ribosomal, 16SRNA, Ribosomal, 16S

Identifiers

PMID37591927
PMCPMC10798900

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.