Evidence map›Paper›PMID 26317002›Full record

ArticleJournal of neurodegenerative diseases2013

Clinical and Genetic Study of Algerian Patients with Spinal Muscular Atrophy.

Y Sifi, K Sifi, A Boulefkhad, N Abadi, Z Bouderda, R Cheriet, M Magen, J P Bonnefont, A Munnich, C Benlatreche and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of neurodegenerative diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–field-weighted citation impact, top 95% 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

2 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.

  1. The impact of threeFrontiers in neurology · 2024
    Pooled it
  2. 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

11 authors at 5 institutions in 2 countries.

Y SifiService of Neurology CHU of Constantine, Algeria ; Laboratory of Biology and Molecular Genetics CHU and University of Constantine, Algeria.
K SifiLaboratory of Biology and Molecular Genetics CHU and University of Constantine, Algeria ; Laboratory of Biochemistry CHU of Constantine, Algeria.
A BoulefkhadService of Neurology CHU of Constantine, Algeria ; Laboratory of Biology and Molecular Genetics CHU and University of Constantine, Algeria.
N AbadiLaboratory of Biology and Molecular Genetics CHU and University of Constantine, Algeria ; Laboratory of Biochemistry CHU of Constantine, Algeria.
Z BouderdaService of Pediatrics CHU de Constantine, Algeria.
R CherietService of Pediatrics CHU de Constantine, Algeria.
M MagenGenetic Department of the Necker Hospital and Paris Descartes University, Paris, France.
J P BonnefontGenetic Department of the Necker Hospital and Paris Descartes University, Paris, France.
A MunnichGenetic Department of the Necker Hospital and Paris Descartes University, Paris, France.
C BenlatrecheLaboratory of Biology and Molecular Genetics CHU and University of Constantine, Algeria ; Laboratory of Biochemistry CHU of Constantine, Algeria.
A HamriService of Neurology CHU of Constantine, Algeria ; Laboratory of Biochemistry CHU of Constantine, Algeria.
Centre Hospitalo-Universitaire Dr Benbadis Constantine · DZUniversity of Constantine 3Université Paris Cité · FRConstantine 1 University · DZDélégation Paris 5 · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Spinal muscular atrophy (SMA) is the second most common lethal autosomal recessive disorder. It is divided into the acute Werdnig-Hoffmann disease (type I), the intermediate form (type II), the Kugelberg-Welander disease (type III), and the adult form (type IV). The gene involved in all four forms of SMA, the so-called survival motor neuron (SMN) gene, is duplicated, with a telomeric (tel SMN or SMN1) and a centromeric copy (cent SMN or SMN2). SMN1 is homozygously deleted in over 95% of SMA patients. Another candidate gene in SMA is the neuronal apoptosis inhibitory protein (NAIP) gene; it shows homozygous deletions in 45-67% of type I and 20-42% of type II/type III patients. Here we studied the SMN and NAIP genes in 92 Algerian SMA patients (20 type I, 16 type II, 53 type III, and 3 type IV) from 57 unrelated families, using a semiquantitative PCR approach. Homozygous deletions of SMN1 exons 7 and/or 8 were found in 75% of the families. Deletions of exon 4 and/or 5 of the NAIP gene were found in around 25%. Conversely, the quantitative analysis of SMN2 copies showed a significant correlation between SMN2 copy number and the type of SMA.

Identifiers

PMID26317002
PMCPMC4437343
OpenAlexW1966860455

What OpenQuestion holds

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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.