Evidence map›Paper›PMID 34136830›Full record

ArticleCurrent research in physiology2021

The infant gut microbiota at 12 months of age is associated with human milk exposure but not with maternal pre-pregnancy body mass index or infant BMI-for-age z-scores.

Eliot N Haddad, Kameron Y Sugino, Jean M Kerver, Nigel Paneth, Sarah S Comstock

Open access · goldAbstract read
In one paragraph

Article in Current research in physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 23% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Observational
  5. Review
  6. Article
  7. Article
  8. Composition of Human Breast Milk Microbiota and Its Role in Children's Health.Pediatric gastroenterology, hepatology & nutrition · 2022
    Article
  9. Article
  10. Article
  11. 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

5 authors at 1 institution in 1 country.

Eliot N HaddadDepartment of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, 48824, USA.
Kameron Y SuginoDepartment of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, 48824, USA.
Jean M KerverDepartment of Epidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing, MI, USA.
Nigel PanethDepartment of Epidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing, MI, USA.
Sarah S ComstockDepartment of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, 48824, USA.
Michigan State University · US

Funding

Understanding Breastfeeding Practices Among ECHO Cohort Participants Before and During/After the COVID-19 PandemicUH3OD023285 · OD · MICHIGAN STATE UNIVERSITY · PI Charles James Barone, MICHAEL R. ELLIOTT · 2018 to 2026
$24.5M
Prenatal Exposures and Child Health Outcomes: A Statewide StudyUG3OD023285 · OD · MICHIGAN STATE UNIVERSITY · PI BARONE, CHARLES JAMES, ELLIOTT, MICHAEL R. · 2016 to 2024
$12.9M
NIH HHS UG3 OD023285NIH HHS UH3 OD023285
6 · The paper itself

Abstract

backgroundAs obesity rates continue to rise, it is increasingly important to understand factors that can influence body weight and growth, especially from an early age. The infant gut microbiota has broad effects on a variety of bodily processes, but its relation to infant growth is not yet fully characterized. Since the infant gut microbiota is closely related to breastfeeding practices and maternal health, understanding the relationship between these factors and infant growth may provide insight into the origins of childhood obesity.

objectivesIdentify the relationship between human milk exposure, maternal pre-pregnancy body mass index (BMI), the infant gut microbiota, and 12-month-old BMI-for-age z-scores (12M BAZ) to identify key factors that shape infant growth.

methodsTwo Michigan cohorts (ARCHGUT and BABYGUT) comprised of a total of 33 mother-infant dyads provided infant fecal samples at 12M. After DNA extraction, amplification, and sequencing of the V4 16S rRNA region using Illumina MiSeq v2 Chemistry, gut bacterial diversity metrics were analyzed in relation to human milk exposure, maternal pre-pregnancy BMI, and infant growth parameters.

resultsRecent human milk exposure was inversely related to maternal pre-pregnancy BMI and most strongly associated with infant gut bacterial community membership and individual gut microbiota richness differences. Maternal pre-pregnancy BMI was not associated with the infant gut microbiota after adjusting for human milk exposure. However, maternal pre-pregnancy BMI was the only factor significantly associated with 12M BAZ.

conclusionsHuman milk exposure is one of the central influences on the infant gut microbiota at 12M of age. However, the lack of association between the infant gut microbiota and 12M-old infant BAZ suggests that genetic, physiological, dietary, and other environmental factors may play a more direct role than the gut microbiota in determining infant BAZ at 12M.

Indexed as

Alpha diversityBeta diversityBreastfeedingGut microbiotaHuman milkInfant developmentInfant growthInfant healthMaternal healthPregnancy

Identifiers

PMID34136830
PMCPMC8205433
OpenAlexW3149983585

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.