Evidence map›Paper›PMID 36409419›Full record

ArticleIrish journal of medical science2023

Diagnostic value of molecular approach in screening for fragile X premutation cases.

Miral M Refeat, Mostafa M El Saied, Ehab R Abdel Raouf

Open access · hybridAbstract read
In one paragraph

Article in Irish journal of medical science, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.2field-weighted citation impact, top 37% 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

1 citing paper in PubMed, 1 citations in OpenAlex.

  1. Review
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

3 authors at 1 institution in 1 country.

Miral M RefeatMedical Molecular Genetics Department, Human Genetics and Genome Research Institution, National Research Centre, Cairo, Egypt. mira_refeat@yahoo.com.
Mostafa M El SaiedDepartment of Research On Children With Special Needs, Centre of Excellence of Medical Research, National Research Center, Cairo, Egypt.
Ehab R Abdel RaoufDepartment of Research On Children With Special Needs, Centre of Excellence of Medical Research, National Research Center, Cairo, Egypt.
National Research Centre · EG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFragile X syndrome (FXS) is the most common form of inherited intellectual disability, caused by CGG-repeats expansion (> 200 repeats). Premutation alleles (PM) (55-200 CGG repeats) are associated with tremor ataxia syndrome (FXTAS), fragile X-associated primary ovarian insufficiency (FXPOI), and autistic problems.

aimTo screen the frequency of premutation carriers using molecular diagnostic assays, in a cohort of Egyptian males with suspected clinical features of (FXS) checking for the presence of premutation alleles.

methodsThe current study comprised 192 Egyptian male children, 92 participants presented with intellectual disability, delayed language development, autistic-like features, behavioral difficulties, anxiety, seizures, and depression compared to 100 healthy males. All cases were subjected to clinical and neuroimaging assessments, when indicated as well as molecular analysis using methylation-specific PCR (MS-PCR) and quantitative real-time PCR (qRT-PCR).

resultsThirty-four premutation carriers out of 92 Egyptian males (37%) of CGG repeats (55 to 200) were illustrated with elevated FMR1 mRNA expression level (p-value < 0.001). Additionally, 2 intermediate (IM) cases (0.03%) (45-55 CGG repeats) showed poor increase in expression level (p-value = 0.02838) plus 6 full mutation (FM) patients (0.07%) with (> 200 CGG repeats) (p-value < 0.001) resulted in FMR1 gene silence.

conclusionMolecular diagnostic assay including (MS-PCR) and (qRT-PCR) proved to be a sensitive and rapid screening tool for the detection of premutation cases. Furthermore, the presence of positive correlation between FMR1 mRNA expression levels with CGG repeats in premutation cases could serve as a potential diagnostic marker. Application of these diagnostic tools on larger number clinically suspected cases is recommended.

Indexed as

Fragile X SyndromeIntellectual DisabilityChildFragile X Messenger Ribonucleoprotein 1HumansMaleMutationReal-Time Polymerase Chain ReactionRNA, MessengerFMR1 protein, humanFragile X Messenger Ribonucleoprotein 1RNA, MessengerFragile X syndromeFull mutationIntermediate allelesMethylation-specific PCRmRNA (FMR1)Premutation alleles

Identifiers

PMID36409419
PMCPMC10522757
OpenAlexW4309509115

What OpenQuestion holds

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LicenceCC BY
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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.