Evidence map›Paper›PMID 23548045›Full record

ArticleJournal of neurodevelopmental disorders2013

A quantitative homogeneous assay for fragile X mental retardation 1 protein.

Gabi Schutzius, Dorothee Bleckmann, Sandra Kapps-Fouthier, Francesco di Giorgio, Bernd Gerhartz, Andreas Weiss

Open access · goldAbstract read
In one paragraph

Article in Journal of neurodevelopmental disorders, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.9field-weighted citation impact, top 13% 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

16 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Size and methylation mosaicism in males with Fragile X syndrome.Expert review of molecular diagnostics · 2017
    Article
  8. Review
  9. Reduced vagal tone in women with theJournal of neurodevelopmental disorders · 2017
    Article
  10. Review
  11. Article
  12. Review
  13. Modeling fragile X syndrome in the Fmr1 knockout mouse.Intractable & rare diseases research · 2014
    Review
  14. Fragile X spectrum disorders.Intractable & rare diseases research · 2014
    Review
  15. Article
  16. 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 2 institutions in 1 country.

Gabi SchutziusNeuroscience Discovery, Novartis Pharma AG, Novartis Institutes for Biomedical Research, Postfach, Basel, CH-4002, Switzerland. Andreasweiss@Email.com.
Dorothee Bleckmann
Sandra Kapps-Fouthier
Francesco di Giorgio
Bernd Gerhartz
Andreas Weiss
Novartis Institutes for BioMedical ResearchNovartis (Switzerland) · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHypermethylation of the fragile X mental retardation 1 gene FMR1 results in decreased expression of FMR1 protein FMRP, which is the underlying cause of Fragile X syndrome - an incurable neurological disorder characterized by mental retardation, anxiety, epileptic episodes and autism. Disease-modifying therapies for Fragile X syndrome are thus aimed at treatments that increase the FMRP expression levels in the brain. We describe the development and characterization of two assays for simple and quantitative detection of FMRP protein.

methodAntibodies coupled to fluorophores that can be employed for time-resolved Förster's resonance energy transfer were used for the development of homogeneous, one-step immunodetection. Purified recombinant human FMRP and patient cells were used as control samples for assay development.

resultsThe assays require small sample amounts, display high stability and reproducibility and can be used to quantify endogenous FMRP in human fibroblasts and peripheral blood mononuclear cells. Application of the assays to FXS patient cells showed that the methods can be used both for the characterization of clinical FXS patient samples as well as primary readouts in drug-discovery screens aimed at increasing endogenous FMRP levels in human cells.

conclusionThis study provides novel quantitative detection methods for FMRP in FXS patient cells. Importantly, due to the simplicity of the assay protocol, the method is suited to be used in screening applications to identify compounds or genetic interventions that result in increased FMRP levels in human cells.

Identifiers

PMID23548045
PMCPMC3635944
OpenAlexW2166164581

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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.