Evidence map›Paper›PMID 23940258›Full record

ArticleThe Journal of experimental medicine2013

Human L-ferritin deficiency is characterized by idiopathic generalized seizures and atypical restless leg syndrome.

Anna Cozzi, Paolo Santambrogio, Daniela Privitera, Vania Broccoli, Luisa Ida Rotundo, Barbara Garavaglia, Rudolf Benz, Sandro Altamura, Jeroen S Goede, Martina U Muckenthaler and 1 more

Open access · bronzeAbstract readCase Reports
In one paragraph

Article in The Journal of experimental medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

24 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Article
  3. Iron imbalance in neurodegeneration.Molecular psychiatry · 2024
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Pathogenic mechanism and modeling of neuroferritinopathy.Cellular and molecular life sciences : CMLS · 2021
    Review
  11. Review
  12. Iron Metabolism in Ferroptosis.Frontiers in cell and developmental biology · 2020
    Review
  13. Article
  14. Article
  15. Targeting iron metabolism in drug discovery and delivery.Nature reviews. Drug discovery · 2017
    Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. 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

11 authors at 6 institutions in 3 countries.

Anna CozziSan Raffaele Scientific Institute, Division of Neuroscience and 2 University Vita-Salute San Raffaele, Milan, Italy.
Paolo Santambrogio
Daniela Privitera
Vania Broccoli
Luisa Ida Rotundo
Barbara Garavaglia
Rudolf Benz
Sandro Altamura
Jeroen S Goede
Martina U Muckenthaler
Sonia Levi
Vita-Salute San Raffaele University · ITHeidelberg University · DEFondazione IRCCS Istituto Neurologico Carlo Besta · ITKantonsspital Münsterlingen · CHSan Raffaele University of Rome · ITUniversity Hospital of Zurich · CH

Funding

Telethon GGP10099
6 · The paper itself

Abstract

The ubiquitously expressed iron storage protein ferritin plays a central role in maintaining cellular iron homeostasis. Cytosolic ferritins are composed of heavy (H) and light (L) subunits that co-assemble into a hollow spherical shell with an internal cavity where iron is stored. The ferroxidase activity of the ferritin H chain is critical to store iron in its Fe3+ oxidation state, while the L chain shows iron nucleation properties. We describe a unique case of a 23-yr-old female patient affected by a homozygous loss of function mutation in the L-ferritin gene, idiopathic generalized seizures, and atypical restless leg syndrome (RLS). We show that L chain ferritin is undetectable in primary fibroblasts from the patient, and thus ferritin consists only of H chains. Increased iron incorporation into the FtH homopolymer leads to reduced cellular iron availability, diminished levels of cytosolic catalase, SOD1 protein levels, enhanced ROS production and higher levels of oxidized proteins. Importantly, key phenotypic features observed in fibroblasts are also mirrored in reprogrammed neurons from the patient's fibroblasts. Our results demonstrate for the first time the pathophysiological consequences of L-ferritin deficiency in a human and help to define the concept for a new disease entity hallmarked by idiopathic generalized seizure and atypical RLS.

Indexed as

Amino Acid SequenceApoferritinsBase SequenceChildCodon, TerminatorFemaleFibroblastsHalf-LifeHomozygoteHumansIronIron DeficienciesMembrane Potential, MitochondrialMolecular Sequence DataNeuronsOxidative StressApoferritinsCodon, TerminatorFTL protein, humanIronReactive Oxygen SpeciesReceptors, Transferrin

Identifiers

PMID23940258
PMCPMC3754865
OpenAlexW2134438683

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.