Evidence map›Paper›PMID 37867425›Full record

ArticleEpilepsia open2024

Customized targeted massively parallel sequencing enables the identification of novel pathogenic variants in Tunisian patients with developmental and epileptic encephalopathy.

Mariem Ben Said, Olfa Jallouli, Abir Ben Aissa, Amal Souissi, Fatma Kamoun, Faiza Fakhfakh, Saber Masmoudi, Ikhlas Ben Ayed, Chahnez Charfi Triki

Open access · goldAbstract read
In one paragraph

Article in Epilepsia open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.9field-weighted citation impact, top 19% 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

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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

4 citing papers in PubMed, 3 citations in OpenAlex.

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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

9 authors at 1 institution in 1 country.

Mariem Ben SaidLaboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia.ORCID https://orcid.org/0000-0003-4098-4537
Olfa JallouliDepartment of Child Neurology, Hedi Chaker Hospital, LR19ES15, University of Sfax, Sfax, Tunisia.
Abir Ben AissaDepartment of Child Neurology, Hedi Chaker Hospital, LR19ES15, University of Sfax, Sfax, Tunisia.
Amal SouissiLaboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia.
Fatma KamounDepartment of Child Neurology, Hedi Chaker Hospital, LR19ES15, University of Sfax, Sfax, Tunisia.
Faiza FakhfakhMolecular Genetics and Functional Laboratory, Faculty of Science of Sfax, University of Sfax, Sfax, Tunisia.
Saber MasmoudiLaboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia.
Ikhlas Ben AyedLaboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia.
Chahnez Charfi TrikiDepartment of Child Neurology, Hedi Chaker Hospital, LR19ES15, University of Sfax, Sfax, Tunisia.ORCID https://orcid.org/0000-0003-2918-3819
University of Sfax · TN

Funding

H2020 Environment Grant Agreement No 856592
6 · The paper itself

Abstract

objectiveTo develop a high-throughput sequencing panel for the diagnosis of developmental and epileptic encephalopathy in Tunisia and to clarify the frequency of disease-causing genes in this region.

methodsWe developed a custom panel for next-generation sequencing of the coding sequences of 116 genes in individuals with developmental and epileptic encephalopathy from the Tunisian population. Segregation analyses and in silico studies have been conducted to assess the identified variants' pathogenicity.

resultsWe report 12 pathogenic variants in SCN1A, CHD2, CDKL5, SZT2, KCNT1, GNAO1, PCDH19, MECP2, GRIN2A, and SYNGAP1 in patients with developmental and epileptic encephalopathy. Five of these variants are novel: "c.149delA, p.(Asn50MetfsTer26)" in CDKL5; "c.3616C > T, p.(Arg1206Ter)" in SZT2; "c.111_113del, p.(Leu39del)" in GNAO1; "c.1435G>C, p.(Asp479His)" in PCDH19; and "c.2143delC, p.(Arg716GlyfsTer10)" in SYNGAP1. Additionally, for four of our patients, the genetic result facilitated the choice of the appropriate treatment. SIGNIFICANCE: This is the first report of a custom gene panel to identify genetic variants implicated in developmental and epileptic encephalopathy in the Tunisian population as well as the North African region (Tunisia, Egypt, Libya, Algeria, Morocco) with a diagnostic rate of 30%. This high-throughput sequencing panel has considerably improved the rate of positive diagnosis of developmental and epileptic encephalopathy in the Tunisian population, which was less than 15% using Sanger sequencing. The benefit of genetic testing in these patients was approved by both physicians and parents.

Indexed as

High-Throughput Nucleotide SequencingAdolescentAdultChildChild, PreschoolEpilepsyFemaleHumansInfantMaleMutationSpasms, InfantileTunisiadevelopmental and epileptic encephalopathydiagnosispanelsequencingvariant

Identifiers

PMID37867425
PMCPMC11450609
OpenAlexW4387866263

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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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 Socratic graph.