Evidence map›Paper›PMID 23077026›Full record

ArticleNeurology2012

PRRT2 mutations in familial infantile seizures, paroxysmal dyskinesia, and hemiplegic migraine.

Carla Marini, Valerio Conti, Davide Mei, Domenica Battaglia, Donatella Lettori, Emma Losito, Grazia Bruccini, Gaetano Tortorella, Renzo Guerrini

Registry-linked trialAbstract read
In one paragraph

Article in Neurology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04023656 (Prognosis of Paroxysmal Kinesigenic Choreoathetosis in Korea), which is not on this map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
9.4field-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.

NCT04023656 recruitingnot on this mapstarted 2016, after this paper: background citation

Prognosis of Paroxysmal Kinesigenic Choreoathetosis in Korea: a Prospective, Observational Study

Typeobservational_patient_registrySponsorSeoul National University HospitalRan2016 to 2026Enrolled100ConditionsParoxysmal Kinesigenic Choreoathetosis
3 · Its place in the literature

Who cites it

50 citing papers in PubMed, 114 citations in OpenAlex.

  1. Migraine in children and adolescents.Developmental medicine and child neurology · 2026
    Review
  2. Clinical spectrum and treatment responses in.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
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  12. Genetics of migraine: where are we now?The journal of headache and pain · 2023
    Review
  13. Article
  14. Article
  15. Article
  16. Frontiers in neurology · 2022
    Article
  17. Article
  18. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Carla MariniPediatric Neurology and Neurogenetics Unit and Laboratories, A. Meyer Children's Hospital-University of Florence, Florence, Italy.
Valerio Conti
Davide Mei
Domenica Battaglia
Donatella Lettori
Emma Losito
Grazia Bruccini
Gaetano Tortorella
Renzo Guerrini
Meyer Children's Hospital · IT

Funding

Telethon GGP05177
6 · The paper itself

Abstract

objectiveTo perform a clinical and genetic study of a family with benign familial infantile seizures (BFIS) and, upon finding a PRRT2 gene mutation, to study a cohort of probands with a similar phenotype. We extended the study to all available family members to find out whether PRRT2 mutations cosegregated with additional symptoms.

methodsWe carried out a clinical and genealogic study of a 3-generation family and of 32 additional probands with BFIS (11 families), infantile convulsions and paroxysmal choreoathetosis (ICCA) (9 families), BFIS/generalized epilepsy with febrile seizures plus (5 families), and sporadic benign neonatal or infantile seizures (7 probands/families). We performed a genetic study consisting of linkage analysis and PRRT2 screening of the 33 probands/families.

resultsWe obtained a positive linkage in the 16p11.3-q23.1 chromosomal region in the large BFIS family. Mutation analysis of PRRT2 gene revealed a c.649dupC (p.Arg217Profs*8) in all affected individuals. PRRT2 analysis of the 32 additional probands showed mutations in 10, 8 familial and 2 sporadic, probands. Overall we found PRRT2 mutations in 11 probands with a mutation rate of 11 out of 33 (33%). BFIS co-occurred with migraine and febrile seizures in 2 families, with childhood absence epilepsy in one family and with hemiplegic migraine in one family.

conclusionOur results confirm the predominant role of PRRT2 mutations in BFIS and expand the spectrum of PRRT2-associated phenotypes to include febrile seizures, childhood absence seizures, migraine, and hemiplegic migraine.

Indexed as

DystoniaEpilepsy, AbsenceEpilepsy, Benign NeonatalFemaleGenetic LinkageHumansInfantMaleMembrane ProteinsMigraine with AuraMutationNerve Tissue ProteinsPedigreeSeizures, FebrileSpasms, InfantileMembrane ProteinsNerve Tissue ProteinsPRRT2 protein, human

Identifiers

PMID23077026
PMCPMC3511926
OpenAlexW2048020534

What OpenQuestion holds

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Read underepoch 390

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.