Evidence map›Paper›PMID 35871250›Full record

ArticleThe ISME journal2022

Ecological memory of prior nutrient exposure in the human gut microbiome.

Jeffrey Letourneau, Zachary C Holmes, Eric P Dallow, Heather K Durand, Sharon Jiang, Verónica M Carrion, Savita K Gupta, Adam C Mincey, Michael J Muehlbauer, James R Bain and 1 more

Abstract read
In one paragraph

Article in The ISME journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

20 citing papers in PubMed.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. A heritable iron memory enables decision-making inProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. Diversity of plant DNA in stool is linked to dietary quality, age, and household income.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  19. Article
  20. Review
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

11 authors.

Jeffrey LetourneauDepartment of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA.
Zachary C HolmesDepartment of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA.
Eric P DallowDepartment of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA.
Heather K DurandDepartment of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA.
Sharon JiangDepartment of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA.
Verónica M CarrionDuke Office of Clinical Research, Duke University School of Medicine, Durham, NC, USA.
Savita K GuptaDepartment of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA.
Adam C MinceyDuke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA.
Michael J MuehlbauerDuke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA.
James R BainDuke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA.
Lawrence A DavidDepartment of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA. lawrence.david@duke.edu.ORCID 0000-0002-3570-4767

Funding

UNIV OF NORTH CAROLINA CLINICAL NUTRITION RESEARCH UNITP30DK056350 · NIDDK · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Ian Michael Carroll · 1999 to 2026
$31.6M
PILOT AND FEASIBILITY STUDIESP30DK034987 · NIDDK · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Temitope O. Keku · 1985 to 2026
$30.5M
Pilot & Feasibility ProgramP30DK124723 · NIDDK · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI P Darrell Neufer · 2020 to 2026
$11.0M
Personalizing prebiotic therapies that target human gut microbiotaR01DK116187 · NIDDK · DUKE UNIVERSITY · PI Lawrence Anthony David · 2018 to 2026
$3.7M
Using DNA sequencing to assess dietary species richnessR01DK128611 · NIDDK · DUKE UNIVERSITY · PI Lawrence Anthony David · 2022 to 2026
$2.9M
Predicting Newborn and Childhood Adiposity: An Integrated Omics ApproachR01DK117491 · NIDDK · NORTHWESTERN UNIVERSITY AT CHICAGO · PI LOWE, WILLIAM L, SCHOLTENS, DENISE M · 2018 to 2022
$2.8M
Biomarkers of Dietary Intake and Exposure Data Coordinating CenterU24DK129557 · NIDDK · DUKE UNIVERSITY · PI CHAKRABORTY, HRISHIKESH · 2021 to 2025
$2.6M
NIDDK NIH HHS P30 DK034987NIDDK NIH HHS P30 DK056350NIDDK NIH HHS P30 DK124723NIDDK NIH HHS R01 DK116187NIDDK NIH HHS R01 DK117491NIDDK NIH HHS R01 DK128611NIDDK NIH HHS U24 DK129557
6 · The paper itself

Abstract

Many ecosystems have been shown to retain a memory of past conditions, which in turn affects how they respond to future stimuli. In microbial ecosystems, community disturbance has been associated with lasting impacts on microbiome structure. However, whether microbial communities alter their response to repeated stimulus remains incompletely understood. Using the human gut microbiome as a model, we show that bacterial communities retain an "ecological memory" of past carbohydrate exposures. Memory of the prebiotic inulin was encoded within a day of supplementation among a cohort of human study participants. Using in vitro gut microbial models, we demonstrated that the strength of ecological memory scales with nutrient dose and persists for days. We found evidence that memory is seeded by transcriptional changes among primary degraders of inulin within hours of nutrient exposure, and that subsequent changes in the activity and abundance of these taxa are sufficient to enhance overall community nutrient metabolism. We also observed that ecological memory of one carbohydrate species impacts microbiome response to other carbohydrates, and that an individual's habitual exposure to dietary fiber was associated with their gut microbiome's efficiency at digesting inulin. Together, these findings suggest that the human gut microbiome's metabolic potential reflects dietary exposures over preceding days and changes within hours of exposure to a novel nutrient. The dynamics of this ecological memory also highlight the potential for intra-individual microbiome variation to affect the design and interpretation of interventions involving the gut microbiome.

Indexed as

Gastrointestinal MicrobiomeMicrobiotaDietary FiberHumansInulinNutrientsDietary FiberInulinNutrients

Identifiers

PMID35871250
PMCPMC9563064

What Socratic holds

Textmetadata
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 Socratic graph.