Evidence map›Paper›PMID 22763467›Full record

ArticleJournal of neurology2013

A novel mutation I215V in the PRNP gene associated with Creutzfeldt-Jakob and Alzheimer's diseases in three patients with divergent clinical phenotypes.

Mercedes Muñoz-Nieto, Neus Ramonet, Juan Ignacio López-Gastón, Natividad Cuadrado-Corrales, Olga Calero, Marcos Díaz-Hurtado, José Ramón Ipiens, Santiago Ramón y Cajal, Jesús de Pedro-Cuesta, Miguel Calero

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In one paragraph

Article in Journal of neurology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

15 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Early-onset Alzheimer's disease patient with prionNeuropsychiatric disease and treatment · 2019
    Article
  5. Genetic PrP Prion Diseases.Cold Spring Harbor perspectives in biology · 2018
    Review
  6. Prion disease.Handbook of clinical neurology · 2018
    Review
  7. Characterization of mutations inNeuropsychiatric disease and treatment · 2018
    Review
  8. Hereditary Human Prion Diseases: an Update.Molecular neurobiology · 2017
    Review
  9. Genetic prion disease: Experience of a rapidly progressive dementia center in the United States and a review of the literature.American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics · 2017
    Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Neurological update: dementia.Journal of neurology · 2014
    Review
  15. 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

10 authors at 6 institutions in 1 country.

Mercedes Muñoz-NietoCentro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Spain.
Neus Ramonet
Juan Ignacio López-Gastón
Natividad Cuadrado-Corrales
Olga Calero
Marcos Díaz-Hurtado
José Ramón Ipiens
Santiago Ramón y Cajal
Jesús de Pedro-Cuesta
Miguel Calero
Biomedical Research Networking Center on Neurodegenerative Diseases · ESCentro Nacional de Microbiologia · ESGobierno de Aragón · ESHospital Clínico Universitario Lozano Blesa · ESHospital Universitario Miguel Servet · ESInstituto de Salud Carlos III · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Genetic human prion diseases are autosomal dominant disorders associated with different mutations in the PRNP gene that are manifested as distinct clinical phenotypes. Here, we report a new pathogenic missense mutation (c.[643A>G], p.[I215V]) in the PRNP gene associated with three pathologically confirmed cases: two of Creutzfeldt-Jakob disease (CJD) and one of Alzheimer's disease (AD) in two different families from the same geographical region in Spain. This mutation has not been found in any of more than 2,000 control cases studied. It represents a conservative amino acid change, and the same change is observed in the PRNP gene from other species. The two CJD cases were homozygous at codon 129 (M/M), but showed divergent clinical phenotypes with onset at ages 55 and 77 years and illness durations of 15 and 6 months, respectively. The postmortem neuropathological analysis of these cases showed homogeneous features compatible with CJD. Interestingly, the AD case (a brother of one of the CJD cases) was heterozygous at codon 129 (M/V). No familiar history was documented for any of the cases, suggesting a de novo mutation, or a partial, age-dependent penetration of the mutation, perhaps related to codon 129 status. This new mutation extends the list of known pathogenic mutations responsible for genetic CJD, reinforces the clinical heterogeneity of the disease, and advocates for the inclusion of PRNP gene examination in the diagnostic workup of patients with poorly classifiable dementia, even in the absence of family history.

Indexed as

14-3-3 ProteinsAgedAged, 80 and overAlzheimer DiseaseAutopsyCreutzfeldt-Jakob SyndromeGlial Fibrillary Acidic ProteinHumansIsoleucineMaleModels, MolecularMutationPhenotypePrion ProteinsPrionsSpain14-3-3 ProteinsGlial Fibrillary Acidic ProteinIsoleucinePrion ProteinsPrionsPRNP protein, humanValine

Identifiers

PMID22763467
OpenAlexW2036240900

What OpenQuestion holds

Textmetadata
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.