Evidence map›Paper›PMID 40871723›Full record

ArticleNutrients2025

Dietary Iron Intake Impacts the Microbial Composition of the Murine Intestinal and Lung Microbiome.

Ama-Tawiah Essilfie, Alison Smith, Rebecca Watts, Pramila Maniam, Iain L Lamont, David M Frazer, Gregory J Anderson, David W Reid

Abstract read
In one paragraph

Article in Nutrients, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Review
  2. 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

8 authors.

Ama-Tawiah EssilfieQIMR Berghofer Medical Research Institute, Brisbane, QLD 4006, Australia.ORCID 0000-0003-0443-9005
Alison SmithQIMR Berghofer Medical Research Institute, Brisbane, QLD 4006, Australia.
Rebecca WattsQIMR Berghofer Medical Research Institute, Brisbane, QLD 4006, Australia.
Pramila ManiamQIMR Berghofer Medical Research Institute, Brisbane, QLD 4006, Australia.ORCID 0000-0003-0970-9924
Iain L LamontThe Department of Biochemistry, University of Otago, Dunedin 9012, New Zealand.ORCID 0000-0002-7601-6354
David M FrazerQIMR Berghofer Medical Research Institute, Brisbane, QLD 4006, Australia.ORCID 0000-0003-4098-1379
Gregory J AndersonQIMR Berghofer Medical Research Institute, Brisbane, QLD 4006, Australia.
David W ReidQIMR Berghofer Medical Research Institute, Brisbane, QLD 4006, Australia.ORCID 0000-0001-9517-8212

Funding

National Health and Medical Research Council APP1084130
6 · The paper itself

Abstract

backgroundIron is an essential nutrient for many bacterial pathogens and normal cellular function and homeostasis of their hosts. Studies suggest that iron deficiency or overload may contribute to the pathogenesis of several chronic conditions and modify host-microbial interactions. In this study, we assessed the impact of varying dietary iron intakes on the microbiota of the intestinal tract and lungs of wild-type mice.

methodsMale C57BL/6J mice were fed either a standard pellet chow (high iron diet), a ferrous ammonium sulfate (FeAS)-supplemented diet or an iron-deficient diet for four weeks. Tissue from the lung, duodenum and colon was collected, and 16S rRNA gene fragments were pyrosequenced.

resultsTotal serum iron levels were negatively associated with richness of the lung microbiome ( DISCUSSION: This study demonstrates that dietary iron intake significantly impacts the intestinal microbiota and has a small, yet significant, effect on the lung microbiome in C57BL/6J mice. Whilst dietary iron content per se did not significantly modulate the composition of the lung microbiota, serum iron levels had subtle impacts on the community composition of the lung microbiota.

Indexed as

Gastrointestinal MicrobiomeIron, DietaryLungMicrobiotaAnimalsBacteriaColonDietary SupplementsFerrous CompoundsIronMaleMiceMice, Inbred C57BLRNA, Ribosomal, 16SFerrous CompoundsIronIron, DietaryRNA, Ribosomal, 16Scolondietary ironduodenumlungmicrobiomemouse

Identifiers

PMID40871723
PMCPMC12389207

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.