Evidence map›Paper›PMID 30208950›Full record

ArticleMicrobiome2018

Dichotomous development of the gut microbiome in preterm infants.

Thao T B Ho, Maureen W Groer, Bradley Kane, Alyson L Yee, Benjamin A Torres, Jack A Gilbert, Akhil Maheshwari

Open access · goldAbstract read
In one paragraph

Article in Microbiome, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 3 pooled it
3.4field-weighted citation impact, top 6% 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

48 citing papers in PubMed, 3 syntheses or guidelines pooled it, 68 citations in OpenAlex.

  1. Pooled it
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  12. Maternal stress during the third trimester of pregnancy and the neonatal microbiome.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2023
    Article
  13. Review
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  15. The role of Klebsiella populations in preterm infants.Biochemical Society transactions · 2023
    Review
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  17. Clinical and histopathological correlates of intestinal repair in preterm infants following surgical necrotizing enterocolitis.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2022
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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 3 institutions in 1 country.

Thao T B HoDepartment of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
Maureen W GroerDepartment of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
Bradley KaneCollege of Nursing, University of South Florida, Tampa, FL, USA.
Alyson L YeeInterdisciplinary Scientist Training Program, University of Chicago, Chicago, IL, USA.
Benjamin A TorresDepartment of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
Jack A GilbertMicrobiome Center, University of Chicago, Chicago, IL, USA.
Akhil MaheshwariDepartment of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, USA. akhil@jhmi.edu.
University of South Florida · USArgonne National Laboratory · USUniversity of Chicago · US

Funding

MEDICAL SCIENTIST TRAININGT32GM007281 · NIGMS · UNIVERSITY OF CHICAGO · PI CLARK, MARCUS RAMSAY · 1985 to 2022
$32.1M
The Preterm Infant Microbiome: Biological, Behavioral and Health Outcomes at 2 and 4 years of AgeR01NR015446 · NINR · UNIVERSITY OF SOUTH FLORIDA · PI GROER, MAUREEN EDITH · 2015 to 2019
$2.6M
Effect of Platelet Transfusions on Neonatal Intestinal InjuryR01HL133022 · NHLBI · UNIVERSITY OF SOUTH FLORIDA · PI KRISHNAN, MOHAN KUMAR · 2017 to 2020
$1.6M
Red Cell Transfusion-associated Necrotizing Enterocolitis in Premature InfantsR01HL124078 · NHLBI · UNIVERSITY OF SOUTH FLORIDA · PI KRISHNAN, MOHAN KUMAR · 2015 to 2018
$1.5M
NHLBI NIH HHS R01 HL124078NHLBI NIH HHS R01 HL133022NIGMS NIH HHS T32 GM007281NINR NIH HHS R01 NR015446
6 · The paper itself

Abstract

backgroundPreterm infants are at risk of developing intestinal dysbiosis with an increased proportion of Gammaproteobacteria. In this study, we sought the clinical determinants of the relative abundance of feces-associated Gammaproteobacteria in very low birth weight (VLBW) infants. Fecal microbiome was characterized at ≤ 2 weeks and during the 3rd and 4th weeks after birth, by 16S rRNA amplicon sequencing. Maternal and infant clinical characteristics were extracted from electronic medical records. Data were analyzed by linear mixed modeling and linear regression.

resultsClinical data and fecal microbiome profiles of 45 VLBW infants (gestational age 27.9 ± 2.2 weeks; birth weight 1126 ± 208 g) were studied. Three stool samples were analyzed for each infant at mean postnatal ages of 9.9 ± 3, 20.7 ± 4.1, and 29.4 ± 4.9 days. The average relative abundance of Gammaproteobacteria was 42.5% (0-90%) at ≤ 2 weeks, 69.7% (29.9-86.9%) in the 3rd, and 75.5% (54.5-86%) in the 4th week (p < 0.001). Hierarchical and K-means clustering identified two distinct subgroups: cluster 1 started with comparatively low abundance that increased with time, whereas cluster 2 began with a greater abundance at ≤ 2 weeks (p < 0.001) that decreased over time. Both groups resembled each other by the 3rd week. Single variants of Klebsiella and Staphylococcus described variance in community structure between clusters and were shared between all infants, suggesting a common, hospital-derived source. Fecal Gammaproteobacteria was positively associated with vaginal delivery and antenatal steroids.

conclusionsWe detected a dichotomy in gut microbiome assembly in preterm infants: some preterm infants started with low relative gammaproteobacterial abundance in stool that increased as a function of postnatal age, whereas others began with and maintained high abundance. Vaginal birth and antenatal steroids were identified as predictors of Gammaproteobacteria abundance in the early (≤ 2 weeks) and later (3rd and 4th weeks) stool samples, respectively. These findings are important in understanding the development of the gut microbiome in premature infants.

Indexed as

Gastrointestinal MicrobiomeInfant, PrematureInfant, Very Low Birth WeightFecesFemaleGammaproteobacteriaGastrointestinal TractGestational AgeHumansInfant, NewbornMaleAbbreviationsDysbiosisGammaproteobacteriaNECNecrotizing enterocolitisOTUOperational taxonomic unitVery low birth weight infantVLBWVery low birth weight

Identifiers

PMID30208950
PMCPMC6136210
OpenAlexW2891904104

What OpenQuestion holds

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LicenceCC BY
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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.