Evidence map›Paper›PMID 28862677›Full record

ArticleNutrients2017

Simulation of Food Folate Digestion and Bioavailability of an Oxidation Product of 5-Methyltetrahydrofolate.

Christiane Ringling, Michael Rychlik

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2017. 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
3.1field-weighted citation impact, top 8% 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, 38 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Review
  5. Scientific opinion on the tolerable upper intake level for folate.EFSA journal. European Food Safety Authority · 2023
    Article
  6. Article
  7. Article
  8. Review
  9. Promising Tropical Fruits High in Folates.Foods (Basel, Switzerland) · 2019
    Article
  10. Article
  11. Article
  12. Article
  13. 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

2 authors at 1 institution in 1 country.

Christiane RinglingDivision BIOANALYTIK Weihenstephan, Research Center for Nutrition and Food Sciences (Z. I. E. L.), Technical University of Munich, Alte Akademie 10, D-85350 Freising, Germany. C.Ringling@web.de.
Michael RychlikDivision BIOANALYTIK Weihenstephan, Research Center for Nutrition and Food Sciences (Z. I. E. L.), Technical University of Munich, Alte Akademie 10, D-85350 Freising, Germany. michael.rychlik@tum.de.
Technical University of Munich · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Generating bioavailability data from in vivo studies is time-consuming and expensive. In vitro simulation can help to investigate factors influencing bioavailability or facilitate quantifying the impact of such factors. For folates, an efficient deconjugation of polyglutamates to the corresponding monoglutamates is crucial for bioavailability and highly dependent on the food matrix. Therefore, the bioaccessibility of folates of different foodstuffs was examined using a simulated digestion model with respect to folate stability and the efficiency of deconjugation. For realistic simulated deconjugation, porcine brush border membrane was used during the phase of the simulated digestion in the small intestine. For a better understanding of folate behaviour during digestion, single folate monoglutamates were also investigated with this in vitro digestion model. The results for bioaccessibility were compared with data from a human bioavailability study. They support the idea that both stability and deconjugation have an influence on bioaccessibility and thus on bioavailability. Tetrahydrofolate is probably lost completely or at least to a high extent and the stability of 5-methyltetrahydrofolate depends on the food matrix. Additionally, 5-methyltetrahydrofolate can be oxidised to a pyrazino-s-triazine (MeFox), whose absorption in the human intestinal tract was shown tentatively.

Indexed as

AnimalsBiological AvailabilityCheeseDigestionFolic AcidHumansMicrovilliModels, BiologicalOxidation-ReductionSwineTetrahydrofolates5-methyltetrahydrofolateFolic AcidTetrahydrofolatesbioaccessibilityfood folatein vitro simulationLC-MS/MSMeFoxoxidation product of 5-CH3-H4folatestable isotope dilution assay

Identifiers

PMID28862677
PMCPMC5622729
OpenAlexW2753344183

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.