Evidence map›Paper›PMID 29616322›Full record

ArticleEuropean journal of nutrition2019

Inter-individual variability in the production of flavan-3-ol colonic metabolites: preliminary elucidation of urinary metabotypes.

Pedro Mena, Iziar A Ludwig, Virginia B Tomatis, Animesh Acharjee, Luca Calani, Alice Rosi, Furio Brighenti, Sumantra Ray, Julian L Griffin, Les J Bluck and 1 more

Abstract read
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In one paragraph

Article in European journal of nutrition, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 2 pooled it
–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

35 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  11. Effect of SinetrolNutrition & metabolism · 2024
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  12. Journal of agricultural and food chemistry · 2024
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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

11 authors.

Pedro MenaHuman Nutrition Unit, Department of Food and Drugs, University of Parma, Medical School Building C, Via Volturno, 39, 43125, Parma, Italy. pedromiguel.menaparreno@unipr.it.ORCID http://orcid.org/0000-0003-2150-2977
Iziar A LudwigHuman Nutrition Unit, Department of Food and Drugs, University of Parma, Medical School Building C, Via Volturno, 39, 43125, Parma, Italy.ORCID http://orcid.org/0000-0001-5506-3293
Virginia B TomatisUK Medical Research Council Elsie Widdowson Laboratory (formerly MRC Human Nutrition Research), Cambridge, UK.
Animesh AcharjeeUK Medical Research Council Elsie Widdowson Laboratory (formerly MRC Human Nutrition Research), Cambridge, UK.ORCID http://orcid.org/0000-0003-2735-7010
Luca CalaniHuman Nutrition Unit, Department of Food and Drugs, University of Parma, Medical School Building C, Via Volturno, 39, 43125, Parma, Italy.ORCID http://orcid.org/0000-0002-3516-8976
Alice RosiHuman Nutrition Unit, Department of Food and Drugs, University of Parma, Medical School Building C, Via Volturno, 39, 43125, Parma, Italy.ORCID http://orcid.org/0000-0001-8533-797X
Furio BrighentiHuman Nutrition Unit, Department of Food and Drugs, University of Parma, Medical School Building C, Via Volturno, 39, 43125, Parma, Italy.ORCID http://orcid.org/0000-0001-8441-4611
Sumantra RayUK Medical Research Council Elsie Widdowson Laboratory (formerly MRC Human Nutrition Research), Cambridge, UK.ORCID http://orcid.org/0000-0002-1411-0003
Julian L GriffinUK Medical Research Council Elsie Widdowson Laboratory (formerly MRC Human Nutrition Research), Cambridge, UK.ORCID http://orcid.org/0000-0003-1336-7744
Les J BluckUK Medical Research Council Elsie Widdowson Laboratory (formerly MRC Human Nutrition Research), Cambridge, UK.ORCID http://orcid.org/0000-0001-6776-4281
Daniele Del RioHuman Nutrition Unit, Department of Food and Drugs, University of Parma, Medical School Building C, Via Volturno, 39, 43125, Parma, Italy. daniele.delrio@unipr.it.ORCID http://orcid.org/0000-0001-5394-1259

Funding

STUDIES ON THE DEVELOPMENT OF HUMAN B CELL LYMPHOMASK08CA001005 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI BERTOLI, LUIGI F · 1985 to 1987
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Medical Research Council MC_PC_13030Medical Research Council MC_U105960384Medical Research Council MC_UP_A090_1006Medical Research Council MR/P011705/1Medical Research Council MR/P01836X/1
6 · The paper itself

Abstract

purposeThere is much information on the bioavailability of (poly)phenolic compounds following acute intake of various foods. However, there are only limited data on the effects of repeated and combined exposure to specific (poly)phenol food sources and the inter-individual variability in their bioavailability. This study evaluated the combined urinary excretion of (poly)phenols from green tea and coffee following daily consumption by healthy subjects in free-living conditions. The inter-individual variability in the production of phenolic metabolites was also investigated.

methodsEleven participants consumed both tablets of green tea and green coffee bean extracts daily for 8 weeks and 24-h urine was collected on five different occasions. The urinary profile of phenolic metabolites and a set of multivariate statistical tests were used to investigate the putative existence of characteristic metabotypes in the production of flavan-3-ol microbial metabolites.

results(Poly)phenolic compounds in the green tea and green coffee bean extracts were absorbed and excreted after simultaneous consumption, with green tea resulting in more inter-individual variability in urinary excretion of phenolic metabolites. Three metabotypes in the production of flavan-3-ol microbial metabolites were tentatively defined, characterized by the excretion of different amounts of trihydroxyphenyl-γ-valerolactones, dihydroxyphenyl-γ-valerolactones, and hydroxyphenylpropionic acids.

conclusionsThe selective production of microbiota-derived metabolites from flavan-3-ols and the putative existence of characteristic metabotypes in their production represent an important development in the study of the bioavailability of plant bioactives. These observations will contribute to better understand the health effects and individual differences associated with consumption of flavan-3-ols, arguably the main class of flavonoids in the human diet.

Indexed as

AdolescentAdultBiological AvailabilityCoffeeColonFemaleFlavonoidsHumansMaleMiddle AgedPolyphenolsTeaYoung AdultCoffeeflavan-3-olFlavonoidsPolyphenolsTeaCoffee caffeoylquinic acidsColonic microbiotaGreen tea catechinsMetabotypesPolyphenolsUrinary phenotype

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Read underepoch 390

Registered trials

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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.