Evidence map›Paper›PMID 22985072›Full record

ArticleBMC neurology2012

Novel PRRT2 mutation in an African-American family with paroxysmal kinesigenic dyskinesia.

Peter Hedera, Jianfeng Xiao, Andreas Puschmann, Dragana Momčilović, Steve W Wu, Mark S LeDoux

Open access · goldAbstract read
In one paragraph

Article in BMC neurology, 2012. 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
3.1field-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

14 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Novel mutation of theBiomedical reports · 2020
    Article
  4. Article
  5. Paroxysmal Kinesigenic Dyskinesia: First Molecularly Confirmed Case from Africa.Tremor and other hyperkinetic movements (New York, N.Y.) · 2019
    Article
  6. Genetic and epigenetic mechanisms of epilepsy: a review.Neuropsychiatric disease and treatment · 2017
    Review
  7. Article
  8. Review
  9. Article
  10. Recent advances in the genetics of dystonia.Current neurology and neuroscience reports · 2014
    Review
  11. Review
  12. Primary and secondary dystonic syndromes: an update.Current opinion in neurology · 2013
    Review
  13. The genetics of dystonia: new twists in an old tale.Brain : a journal of neurology · 2013
    Review
  14. Clinical analysis of nine cases of paroxysmal exercise-induced dystonia.Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban · 2012
    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

6 authors at 5 institutions in 3 countries.

Peter HederaDepartment of Neurology, Vanderbilt University, Nashville, TN, USA.
Jianfeng Xiao
Andreas Puschmann
Dragana Momčilović
Steve W Wu
Mark S LeDoux
University of Tennessee Health Science Center · USSkåne University Hospital · SEUniversity of Belgrade · RSUniversity of Cincinnati · USVanderbilt University · US

Funding

Dystonia CoalitionU54NS065701 · NINDS · EMORY UNIVERSITY · PI JINNAH, HYDER A · 2009 to 2014
$7.0M
Dystonia CoalitionU54TR001456 · NCATS · EMORY UNIVERSITY · PI JINNAH, HYDER A · 2015 to 2016
$2.5M
The Role of THAP1 in DystoniaR01NS069936 · NINDS · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI LEDOUX, MARK S · 2010 to 2013
$1.3M
Mutant Gene Identification in the Dystonic RatR01NS048458 · NINDS · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI LEDOUX, MARK S · 2005 to 2008
$800k
Biological models of molecular pathogenesis if hereditary spastic paraplegiaK02NS057666 · NINDS · VANDERBILT UNIVERSITY · PI HEDERA, PETER · 2009 to 2011
$534k
NCATS NIH HHS U54 TR001456NINDS NIH HHS K02NS057666NINDS NIH HHS R01NS048458NINDS NIH HHS R01NS069936NINDS NIH HHS U54 NS065701NINDS NIH HHS U54NS065701
6 · The paper itself

Abstract

backgroundRecently, heterozygous mutations in PRRT2 (Chr 16p11.2) have been identified in Han Chinese, Japanese and Caucasians with paroxysmal kinesigenic dyskinesia. In previous work, a paroxysmal kinesigenic dyskinesia locus was mapped to Chr 16p11.2 - q11.2 in a multiplex African-American family.

methodsSanger sequencing was used to analyze all four PRRT2 exons for sequence variants in 13 probands (9 Caucasian, 1 Caucasian-Thai, 1 Vietnamese and 2 African-American) with some form of paroxysmal dyskinesia.

resultsOne patient of mixed Caucasian-Thai background and one African-American family harbored the previously described hotspot mutation in PRRT2 (c.649dupC, p.R217Pfs*8). Another African-American family was found to have a novel mutation (c.776dupG, p.E260*). Both of these variants are likely to cause loss-of-function via nonsense-mediated decay of mutant PRRT2 transcripts. All affected individuals had classic paroxysmal kinesigenic dyskinesia phenotypes.

conclusionsHeterozygous PRRT2 gene mutations also cause paroxysmal kinesigenic dyskinesia in African-Americans. The c.649dupC hotspot mutation in PRRT2 is common across racial groups.

Indexed as

AdultBlack or African AmericanChoreaDystoniaFemaleGenetic Predisposition to DiseaseHumansMaleMembrane ProteinsMiddle AgedMutationNerve Tissue ProteinsPolymorphism, Single NucleotideYoung AdultMembrane ProteinsNerve Tissue ProteinsPRRT2 protein, human

Identifiers

PMID22985072
PMCPMC3460747
OpenAlexW2171095276

What OpenQuestion holds

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LicenceCC BY
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.