Evidence map›Paper›PMID 24175286›Full record

Trial reportBioMed research international2013

Frataxin mRNA isoforms in FRDA patients and normal subjects: effect of tocotrienol supplementation.

Provvidenza Maria Abruzzo, Marina Marini, Alessandra Bolotta, Gemma Malisardi, Stefano Manfredini, Alessandro Ghezzo, Antonella Pini, Gianluca Tasco, Rita Casadio

Open access · hybridAbstract readClinical Trial
In one paragraph

Trial report in BioMed research international, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.4field-weighted citation impact, top 43% 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

14 citing papers in PubMed, 17 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Perspectives on current models of Friedreich's ataxia.Frontiers in cell and developmental biology · 2022
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. NaAutism research : official journal of the International Society for Autism Research · 2018
    Article
  12. Article
  13. Oxidative stress in inherited mitochondrial diseases.Free radical biology & medicine · 2015
    Review
  14. Frataxin levels in peripheral tissue in Friedreich ataxia.Annals of clinical and translational neurology · 2015
    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

9 authors at 3 institutions in 1 country.

Provvidenza Maria AbruzzoDepartment of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy.
Marina Marini
Alessandra Bolotta
Gemma Malisardi
Stefano Manfredini
Alessandro Ghezzo
Antonella Pini
Gianluca Tasco
Rita Casadio
University of Bologna · ITUniversity of Ferrara · ITIstituti di Ricovero e Cura a Carattere Scientifico · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Friedreich's ataxia (FRDA) is caused by deficient expression of the mitochondrial protein frataxin involved in the formation of iron-sulphur complexes and by consequent oxidative stress. We analysed low-dose tocotrienol supplementation effects on the expression of the three splice variant isoforms (FXN-1, FXN-2, and FXN-3) in mononuclear blood cells of FRDA patients and healthy subjects. In FRDA patients, tocotrienol leads to a specific and significant increase of FXN-3 expression while not affecting FXN-1 and FXN-2 expression. Since no structural and functional details were available for FNX-2 and FXN-3, 3D models were built. FXN-1, the canonical isoform, was then docked on the human iron-sulphur complex, and functional interactions were computed; when FXN-1 was replaced by FXN-2 or FNX-3, we found that the interactions were maintained, thus suggesting a possible biological role for both isoforms in human cells. Finally, in order to evaluate whether tocotrienol enhancement of FXN-3 was mediated by an increase in peroxisome proliferator-activated receptor-γ (PPARG), PPARG expression was evaluated. At a low dose of tocotrienol, the increase of FXN-3 expression appeared to be independent of PPARG expression. Our data show that it is possible to modulate the mRNA expression of the minor frataxin isoforms and that they may have a functional role.

Indexed as

Amino Acid SequenceCarbon-Sulfur LyasesCase-Control StudiesDietary SupplementsDNA, ComplementaryFrataxinFriedreich AtaxiaGene Expression RegulationHumansIron-Binding ProteinsMolecular Docking SimulationMolecular Sequence DataPPAR gammaProtein BindingReverse Transcriptase Polymerase Chain ReactionRNA IsoformsCarbon-Sulfur LyasesDNA, ComplementaryFrataxinIron-Binding ProteinsNFS1 protein, humanPPAR gammaRNA IsoformsTocotrienols

Identifiers

PMID24175286
PMCPMC3794619
OpenAlexW1983206648

What OpenQuestion holds

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LicenceCC BY
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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.