Evidence map›Paper›PMID 17922962›Full record

ReviewThe British journal of nutrition2007

Dietary microparticles and their impact on tolerance and immune responsiveness of the gastrointestinal tract.

Jonathan J Powell, Vinay Thoree, Laetitia C Pele

Abstract readReview
In one paragraph

Review in The British journal of nutrition, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Review
  6. Review
  7. Diets for inflammatory bowel disease: What do we know so far?European journal of clinical nutrition · 2022
    Review
  8. Review
  9. Article
  10. Effects of microplastics and nanoplastics on marine environment and human health.Environmental science and pollution research international · 2020
    Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Engineered nanomaterials in food: implications for food safety and consumer health.International journal of environmental research and public health · 2014
    Review
  18. Targeted drug delivery to intestinal macrophages by bioactive nanovesicles released from grapefruit.Molecular therapy : the journal of the American Society of Gene Therapy · 2014
    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

3 authors.

Jonathan J PowellMRC Human Nutrition Research, Elsie Widdowson Laboratory, Fulbourn Road Cambridge, CB1 9NL, United Kingdom. jonathan.powell@mrc-hnr.cam.ac.uk
Vinay Thoree
Laetitia C Pele

Funding

Medical Research Council MC_U105960399Medical Research Council U.1059.00.011(60399)
6 · The paper itself

Abstract

Dietary microparticles are non-biological bacterial-sized particles of the gastrointestinal lumen that occur due to endogenous formation (calcium phosphate) or following oral exposure (exogenous microparticle). In the UK, about 40 mg (10(12)) of exogenous microparticles are ingested per person per day, through exposure to food additives, pharmaceutical/supplement excipients or toothpaste constituents. Once ingested, exogenous microparticles are unlikely to pass through the gastrointestinal tract without adsorbing to their surfaces some ions and molecules of the intestinal lumen. Both entropy and ionic attraction drive such interactions. Calcium ions are especially well adsorbed by dietary microparticles which then provide a positively charged surface for the attraction (adsorption) of other organic molecules such as lipopolysaccharides, peptidoglycans or protein antigen from the diet or commensal flora. The major (but not only) sites of microparticle entry into intestinal tissue are the M-cell rich lymphoid aggregates (termed Peyer's patches in the small bowel). Indeed, it is well established that this is an efficient transport route for non-biological microparticles although it is unclear why. We hypothesise that this pathway exists for "endogenous microparticles" of calcium phosphate, with immunological and physiological benefit, and that "exogenous dietary microparticles", such as titanium dioxide and the silicates, hijack this route. This overview focuses on what is known of these microparticles and outlines their potential role in immune tolerance of the gut (endogenous microparticles) or immune activation (exogenous microparticles) and inflammation of the gut.

Indexed as

DietMicrospheresCalcium PhosphatesCrohn DiseaseGastrointestinal TractHumansImmune Tolerancecalcium phosphateCalcium Phosphates

Identifiers

PMID17922962
PMCPMC2737314

What OpenQuestion holds

Textmetadata
LicenceTDM
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.