Evidence map›Paper›PMID 36396443›Full record

Trial reportArchives of disease in childhood. Fetal and neonatal edition2023

Mechanisms affecting the gut of preterm infants in enteral feeding trials: a nested cohort within a randomised controlled trial of lactoferrin.

Greg Young, Janet E Berrington, Stephen Cummings, Jon Dorling, Andrew K Ewer, Alessandra Frau, Lauren Lett, Chris Probert, Ed Juszczak, John Kirby and 7 more

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Archives of disease in childhood. Fetal and neonatal edition, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

13 citing papers in PubMed, 17 citations in OpenAlex.

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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

17 authors at 9 institutions in 1 country.

Greg Young *Applied Sciences, Northumbria University Faculty of Health and Life Sciences, Newcastle upon Tyne, England, UK.ORCID http://orcid.org/0000-0001-5342-1421
Janet E Berrington *Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK j.e.berrington@newcastle.ac.uk.
Stephen CummingsSchool of Health and Life Sciences, Teesside University, Middlesbrough, North Yorkshire, UK.
Jon DorlingDepartment of Neonatal Medicine, University Hospital Southampton NHS Foundation Trust, Southampton, UK.
Andrew K EwerInstitute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK.ORCID http://orcid.org/0000-0002-3825-4781
Alessandra FrauGastroenterology Research Unit, Institute of Translational Medicine, University of Liverpool, Liverpool, UK.
Lauren LettGastroenterology Research Unit, Institute of Translational Medicine, University of Liverpool, Liverpool, UK.
Chris ProbertGastroenterology Research Unit, Institute of Translational Medicine, University of Liverpool, Liverpool, UK.
Ed JuszczakSchool of Medicine, University of Nottingham School of Medicine, Nottingham, Notts, UK.ORCID http://orcid.org/0000-0001-5500-2247
John KirbyTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
Lauren C BeckTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
Victoria L RenwickTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
Christopher LambTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
Clare V LanyonApplied Sciences, Northumbria University Faculty of Health and Life Sciences, Newcastle upon Tyne, England, UK.
William McGuireCentre for Reviews and Dissemination, University of York, York, North Yorkshire, UK.
Christopher StewartTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
Nicholas EmbletonNewcastle Neonatal Service, Ward 35 Neonatal Unit, Royal Victoria Infirmary, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK.
Newcastle University · GBUniversity of Liverpool · GBNorthumbria University · GBRoyal Victoria Infirmary · GBTeesside University · GBUniversity Hospital Southampton NHS Foundation Trust · GBUniversity of Birmingham · GBUniversity of Nottingham · GBUniversity of York · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo determine the impact of supplemental bovine lactoferrin on the gut microbiome and metabolome of preterm infants.

designCohort study nested within a randomised controlled trial (RCT). Infants across different trial arms were matched on several clinical variables. Bacteria and metabolite compositions of longitudinal stool and urine samples were analysed to investigate the impact of lactoferrin supplementation.

settingThirteen UK hospitals participating in a RCT of lactoferrin. PATIENTS: 479 infants born <32 weeks' gestation between June 2016 and September 2017.

results10 990 stool and 22 341 urine samples were collected. Analyses of gut microbiome (1304 stools, 201 infants), metabolites (171 stools, 83 infants; 225 urines, 90 infants) and volatile organic compounds (314 stools, 117 infants) were performed. Gut microbiome Shannon diversity at 34 weeks corrected age was not significantly different between infants in the lactoferrin (mean=1.24) or placebo (mean=1.06) groups (p=0.11). Lactoferrin receipt explained less than 1% variance in microbiome compositions between groups. Metabolomic analysis identified six discriminative features between trial groups. Hospital site (16%) and postnatal age (6%) explained the greatest variation in microbiome composition.

conclusionsThis multiomic study identified minimal impacts of lactoferrin but much larger impacts of hospital site and postnatal age. This may be due to the specific lactoferrin product used, but more likely supports the findings of the RCT in which this study was nested, which showed no impact of lactoferrin on reducing rates of sepsis. Multisite mechanistic studies nested within RCTs are feasible and help inform trial interpretation and future trial design.

Indexed as

LactoferrinSepsisEnteral NutritionGestational AgeHumansInfantInfant, NewbornInfant, PrematureLactoferrinIntensive Care Units, NeonatalMicrobiologyMolecular BiologyNeonatologySepsis

Identifiers

PMID36396443
PMCPMC10176413
OpenAlexW4309366580

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.