Evidence map›Paper›PMID 23334463›Full record

ArticleNeurogenetics2013

Mutations in SLC20A2 are a major cause of familial idiopathic basal ganglia calcification.

Sandy Chan Hsu, Renee L Sears, Roberta R Lemos, Beatriz Quintáns, Alden Huang, Elizabeth Spiteri, Lisette Nevarez, Catherine Mamah, Mayana Zatz, Kerrie D Pierce and 42 more

Open access · greenAbstract read
In one paragraph

Article in Neurogenetics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed, 1 pooled it
14.8field-weighted citation impact, top 1% 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

67 citing papers in PubMed, 1 synthesis or guideline pooled it, 147 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. A Novel Frameshift Mutation inBiomedicines · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. JAM2 variants can be more common in primary familial brain calcification (PFBC) cases than those appear; may be due to a founder mutation.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Article
  8. Review
  9. Article
  10. Pharmacology of Mammalian NaHandbook of experimental pharmacology · 2024
    Article
  11. Article
  12. The Genetics of Primary Familial Brain Calcification: A Literature Review.International journal of molecular sciences · 2023
    Review
  13. Brain Calcifications: Genetic, Molecular, and Clinical Aspects.International journal of molecular sciences · 2023
    Review
  14. Article
  15. Article
  16. Familial Idiopathic Basal Ganglia Calcification: A Father-Son Dyad Demonstrate Heterogeneity of Presentation and Disease Progression.Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 2022
    Article
  17. SLC20A2 mutation manifesting as very late-onset orofacial dyskinesia.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
    Article
  18. PDGF receptor mutations in human diseases.Cellular and molecular life sciences : CMLS · 2021
    Review
  19. Genetic updates on paroxysmal dyskinesias.Journal of neural transmission (Vienna, Austria : 1996) · 2021
    Review
  20. Article

7 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

52 authors at 20 institutions in 11 countries.

Sandy Chan HsuProgram in Neurogenetics, Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
Renee L Sears
Roberta R Lemos
Beatriz Quintáns
Alden Huang
Elizabeth Spiteri
Lisette Nevarez
Catherine Mamah
Mayana Zatz
Kerrie D Pierce
Janice M Fullerton
John C Adair
Jon E Berner
Matthew Bower
Henry Brodaty
Olga Carmona
Valerija Dobricić
Brent L Fogel
Daniel García-Estevez
Jill Goldman
John L Goudreau
Suellen Hopfer
Milena Janković
Serge Jaumà
Joanna C Jen
Suppachok Kirdlarp
Joerg Klepper
Vladimir Kostić
Anthony E Lang
Agnès Linglart
Melissa K Maisenbacher
Bala V Manyam
Pietro Mazzoni
Zofia Miedzybrodzka
Witoon Mitarnun
Philip B Mitchell
Jennifer Mueller
Ivana Novaković
Martin Paucar
Henry Paulson
Sheila A Simpson
Per Svenningsson
Paul Tuite
Jerrold Vitek
Suppachok Wetchaphanphesat
Charles Williams
Michele Yang
Peter R Schofield
João R M de Oliveira
María-Jesús Sobrido
Daniel H Geschwind
Giovanni Coppola
University of California, Los Angeles · USCentar za Promociju Nauke · RSBuriram Rajabhat University · THNeuroscience Research Australia · AUUniversity of Florida · USUniversity of Minnesota Medical Center · USColumbia University Irving Medical Center · USFundación Pública Galega de Medicina Xenómica · ESKarolinska Institutet · SEUniversity of Aberdeen · GBAssistance Publique – Hôpitaux de Paris · FRBellvitge University Hospital · ESBlack Dog Institute · AUCentre for Biomedical Network Research on Rare Diseases · ESCharles R. Drew University of Medicine and Science · USClínica Girona · ESKlinikum Aschaffenburg · DEMichigan State University · USPenn State Milton S. Hershey Medical Center · USSeattle Photonics Associates (United States) · US

Funding

Satellite Diagnostic and Treatment Clinic CoreP50AG008702 · NIA · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI VONSATTEL, JEAN PAUL GERARD · 1989 to 2019
$46.3M
THE GENETICS OF IDIOPATHIC BASAL GANGLIA CALCIFICATIONR01NS040752 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI GESCHWIND, DANIEL H · 2001 to 2004
$1.3M
The Role of Fox-1 in Neurodevelopment and Autistic Spectrum DisorderK08MH086297 · NIMH · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FOGEL, BRENT LINDEN · 2009 to 2013
$719k
NIA NIH HHS P50 AG008702NIA NIH HHS PSO AG008702-22NIMH NIH HHS K08 MH086297NIMH NIH HHS K08 MH86297NINDS NIH HHS R01 NS040752
6 · The paper itself

Abstract

Familial idiopathic basal ganglia calcification (IBGC) or Fahr's disease is a rare neurodegenerative disorder characterized by calcium deposits in the basal ganglia and other brain regions, which is associated with neuropsychiatric and motor symptoms. Familial IBGC is genetically heterogeneous and typically transmitted in an autosomal dominant fashion. We performed a mutational analysis of SLC20A2, the first gene found to cause IBGC, to assess its genetic contribution to familial IBGC. We recruited 218 subjects from 29 IBGC-affected families of varied ancestry and collected medical history, neurological exam, and head CT scans to characterize each patient's disease status. We screened our patient cohort for mutations in SLC20A2. Twelve novel (nonsense, deletions, missense, and splice site) potentially pathogenic variants, one synonymous variant, and one previously reported mutation were identified in 13 families. Variants predicted to be deleterious cosegregated with disease in five families. Three families showed nonsegregation with clinical disease of such variants, but retrospective review of clinical and neuroimaging data strongly suggested previous misclassification. Overall, mutations in SLC20A2 account for as many as 41% of our familial IBGC cases. Our screen in a large series expands the catalog of SLC20A2 mutations identified to date and demonstrates that mutations in SLC20A2 are a major cause of familial IBGC. Non-perfect segregation patterns of predicted deleterious variants highlight the challenges of phenotypic assessment in this condition with highly variable clinical presentation.

Indexed as

MutationAdultAgedAmino Acid SequenceBasal Ganglia DiseasesCalcinosisCohort StudiesDNA Mutational AnalysisFamilyFemaleHumansLinkage DisequilibriumMaleMiddle AgedModels, BiologicalMolecular Sequence DataSLC20A2 protein, humanSodium-Phosphate Cotransporter Proteins, Type III

Identifiers

PMID23334463
PMCPMC4023541
OpenAlexW2170322951

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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.