Evidence map›Paper›PMID 30765892›Full record

ArticleInternational journal of obesity (2005)2020

Does birth mode modify associations of maternal pre-pregnancy BMI and gestational weight gain with the infant gut microbiome?

Sirtaj B Singh, Juliette Madan, Modupe Coker, Anne Hoen, Emily R Baker, Margaret R Karagas, Noel T Mueller

Abstract read
In one paragraph

Article in International journal of obesity (2005), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 3 pooled it
2.5field-weighted citation impact, top 10% 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

36 citing papers in PubMed, 3 syntheses or guidelines pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Maternal gut microbiota in the postpartum Period: A Systematic review.European journal of obstetrics, gynecology, and reproductive biology · 2023
    Pooled it
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  11. Microbiology spectrum · 2024
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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

7 authors at 2 institutions in 1 country.

Sirtaj B SinghDepartment of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
Juliette MadanDepartment of Epidemiology, Dartmouth Geisel School of Medicine, Hanover, NH, USA.
Modupe CokerDepartment of Epidemiology, Dartmouth Geisel School of Medicine, Hanover, NH, USA.
Anne HoenDepartment of Epidemiology, Dartmouth Geisel School of Medicine, Hanover, NH, USA.
Emily R BakerObstetrics and Gynecology, Dartmouth Geisel School of Medicine, Hanover, NH, USA.
Margaret R KaragasDepartment of Epidemiology, Dartmouth Geisel School of Medicine, Hanover, NH, USA.
Noel T MuellerDepartment of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA. noeltmueller@jhu.edu.
Dartmouth College · USJohns Hopkins University · US

Funding

A prospective study of critical environmental exposures in formative early life that impact lifelong health in rural US children: the New Hampshire Birth Cohort StudyUH3OD023275 · OD · DARTMOUTH COLLEGE · PI MARGARET Rita KARAGAS, Juliette Madan · 2018 to 2026
$44.3M
Relation Between In-utero Vitamin D and Immune Function in Early Childhood P20GM104416 · NIGMS · DARTMOUTH COLLEGE · PI KARAGAS, MARGARET RITA · 2013 to 2022
$23.7M
Research BaseP30DK072488 · NIDDK · UNIVERSITY OF MARYLAND BALTIMORE · PI MITCHELL, BRAXTON D, TAYLOR, SIMEON I. · 2005 to 2019
$17.3M
Project 3: Placental Biomarkers of Exposure and Outcome (Marsit)P01ES022832 · NIEHS · DARTMOUTH COLLEGE · PI KARAGAS, MARGARET RITA · 2013 to 2018
$4.7M
Multi-omic Functional Integration Using NetworksR01LM012723 · NLM · DARTMOUTH COLLEGE · PI HOEN, ANNE GATEWOOD · 2017 to 2020
$1.4M
The Effects of Diet on the Gut Microbiome and Short Chain Fatty AcidsK01HL141589 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI MUELLER, NOEL T · 2018 to 2022
$845k
Bioinformatics strategies for early life microbiomicsK01LM011985 · NLM · DARTMOUTH COLLEGE · PI HOEN, ANNE GATEWOOD · 2014 to 2016
$345k
NHLBI NIH HHS K01 HL141589NIDDK NIH HHS P30 DK072488NIEHS NIH HHS P01 ES022832NIGMS NIH HHS P20 GM104416NIH HHS UH3 OD023275NLM NIH HHS K01 LM011985NLM NIH HHS R01 LM012723
6 · The paper itself

Abstract

backgroundMother-to-newborn transmission of obesity-associated microbiota may be modified by birth mode (vaginal vs. Cesarean delivery). Prospective data to test this hypothesis are still sparse.

objectiveTo examine prospective associations of maternal pre-pregnancy BMI and gestational weight gain with the infant gut microbiome by birth-mode strata. SUBJECTS/

methodsIn 335 mother-infant pairs in the New Hampshire Birth Cohort, we ascertained data from questionnaires and medical records, and generated microbiome data from 6-week-old infants' stool using Illumina 16s rRNA gene sequencing (V4-V5 region). Analyses were stratified by birth mode and conducted before and after adjusting for potential confounders, which included maternal age, education, parity, and Mediterranean diet score.

resultsAmong 335 mothers, 56% had normal pre-pregnancy BMI ( < 25, referent), 27% were overweight (BMI 25-30), and 18% obese (BMI > 30). Among the 312 mothers with weight gain data, 10% had inadequate weight gain, 30% adequate (referent), and 60% excess. Birth mode modified associations of pre-pregnancy BMI with several genera, including the most abundant genus, Bacteroides (P for interaction = 0.05). In the vaginal-delivery group, maternal overweight or obesity was associated with higher infant gut microbiome diversity and higher relative abundance of 15 operational taxonomic units (OTUs), including overrepresentation of Bacteroides fragilis, Escherichia coli, Veillonella dispar, and OTUs in the genera Staphylococcus and Enterococcus. In the Cesarean-delivered group, there were no significant associations of pre-pregnancy BMI with infant microbiome (alpha) diversity or OTUs. Gestational weight gain was not associated with differential relative abundance of infant gut microbial OTUs or with measures of microbial diversity in infants delivered vaginally or by Cesarean section.

conclusionsAmong vaginally-delivered infants, maternal overweight and obesity was associated with altered infant gut microbiome composition and higher diversity. These associations were not observed in Cesarean-delivered infants, whose microbiome development differs from vaginally-delivered infants. Our study provides additional evidence of birth-mode dependent associations of maternal body weight status with the infant gut microbiota. The role of these associations in mediating the intergenerational cycle of obesity warrants further examination.

Indexed as

AdultBacteriaBody Mass IndexBody WeightDelivery, ObstetricFecesFemaleGastrointestinal MicrobiomeGestational Weight GainHumansInfantMalePregnancyProspective Studies

Identifiers

PMID30765892
PMCPMC6694002
OpenAlexW2912055180

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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.