Evidence map›Paper›PMID 29329238›Full record

ReviewAntioxidants (Basel, Switzerland)2018

Long-Chain Metabolites of Vitamin E: Metabolic Activation as a General Concept for Lipid-Soluble Vitamins?

Martin Schubert, Stefan Kluge, Lisa Schmölz, Maria Wallert, Francesco Galli, Marc Birringer, Stefan Lorkowski

Registry-linked trialOpen access · goldAbstract readReview
In one paragraph

Review in Antioxidants (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05343611 (Combining Vitamin E-functionalized CHOcolate With Physical Exercise to Reduce the risK Of Protein Energy Malnutrition in Pre-dementia AGEd People), which is not on this map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
6.4field-weighted citation impact, top 3% 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.

NCT05343611 naunknown statusnot on this mapstarted 2022, after this paper: background citation

Combining Vitamin E-functionalized CHOcolate With Physical Exercise to Reduce the risK Of Protein Energy Malnutrition in Pre-dementia AGEd People

TypeinterventionalSponsorMassimo Venturelli, PhDRan2022 to 2024Enrolled102ConditionsDementia, Dementia, Mild, Dementia Moderate, Dementia SenileArmsCombination of High Protein Diet and Physical Exercise protocol, HPP Choko, HPP/VE Choko
3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 76 citations in OpenAlex.

  1. Article
  2. Review
  3. Multi-Omics Reveal the Potential Associations ofJournal of inflammation research · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Scientific opinion on the tolerable upper intake level for vitamin E.EFSA journal. European Food Safety Authority · 2024
    Article
  9. Review
  10. Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  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

7 authors at 4 institutions in 3 countries.

Martin SchubertDepartment of Biochemistry and Physiology of Nutrition, Friedrich-Schiller-University Jena, 07743 Jena, Germany. m.schubert@uni-jena.de.
Stefan KlugeDepartment of Biochemistry and Physiology of Nutrition, Friedrich-Schiller-University Jena, 07743 Jena, Germany. s.kluge@uni-jena.de.
Lisa SchmölzDepartment of Biochemistry and Physiology of Nutrition, Friedrich-Schiller-University Jena, 07743 Jena, Germany. lisa.schmoelz@uni-jena.de.
Maria WallertDepartment of Biochemistry and Physiology of Nutrition, Friedrich-Schiller-University Jena, 07743 Jena, Germany. maria.wallert@uni-jena.de.
Francesco GalliDepartment of Pharmaceutical Sciences, Laboratory of Nutrition and Clinical Biochemistry, University of Perugia, 06123 Perugia, Italy. francesco.galli@unipg.it.ORCID 0000-0003-3626-051X
Marc BirringerDepartment of Nutrition, Food and Consumer Sciences, University of Applied Sciences Fulda, 36037 Fulda, Germany. marc.birringer@oe.hs-fulda.de.ORCID 0000-0003-0343-4704
Stefan LorkowskiDepartment of Biochemistry and Physiology of Nutrition, Friedrich-Schiller-University Jena, 07743 Jena, Germany. stefan.lorkowski@uni-jena.de.ORCID 0000-0002-9649-840X
Friedrich Schiller University Jena · DEBaker Heart and Diabetes Institute · AUFulda University of Applied Sciences · DEUniversity of Perugia · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vitamins E, A, D and K comprise the class of lipid-soluble vitamins. For vitamins A and D, a metabolic conversion of precursors to active metabolites has already been described. During the metabolism of vitamin E, the long-chain metabolites (LCMs) 13'-hydroxychromanol (13'-OH) and 13'-carboxychromanol (13'-COOH) are formed by oxidative modification of the side-chain. The occurrence of these metabolites in human serum indicates a physiological relevance. Indeed, effects of the LCMs on lipid metabolism, apoptosis, proliferation and inflammatory actions as well as tocopherol and xenobiotic metabolism have been shown. Interestingly, there are several parallels between the actions of the LCMs of vitamin E and the active metabolites of vitamin A and D. The recent findings that the LCMs exert effects different from that of their precursors support their putative role as regulatory metabolites. Hence, it could be proposed that the mode of action of the LCMs might be mediated by a mechanism similar to vitamin A and D metabolites. If the physiological relevance and this concept of action of the LCMs can be confirmed, a general concept of activation of lipid-soluble vitamins via their metabolites might be deduced.

Indexed as

13′-carboxychromanol (13′-COOH)13′-hydroxychromanol (13′-OH)biological activitylong-chain metabolites of vitamin Evitamin Evitamin E metabolism

Identifiers

PMID29329238
PMCPMC5789320
OpenAlexW2782954296

What OpenQuestion holds

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Registered trials

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.