Evidence map›Paper›PMID 9199562›Full record

ArticleAmerican journal of human genetics1997

Identification of proximal spinal muscular atrophy carriers and patients by analysis of SMNT and SMNC gene copy number.

P E McAndrew, D W Parsons, L R Simard, C Rochette, P N Ray, J R Mendell, T W Prior, A H Burghes

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In one paragraph

Article in American journal of human genetics, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 229 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
229citing papers in PubMed, 1 pooled it
18.5field-weighted citation impact, top 1% 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

229 citing papers in PubMed, 1 synthesis or guideline pooled it, 533 citations in OpenAlex.

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169 more citing papers are in PubMed but not listed here.

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

8 authors at 3 institutions in 2 countries.

P E McAndrewDepartment of Pathology, Ohio State University, Columbus 43210, USA.
D W Parsons
L R Simard
C Rochette
P N Ray
J R Mendell
T W Prior
A H Burghes
The Ohio State University · USCentre Hospitalier Universitaire Sainte-Justine · CAHospital for Sick Children · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The survival motor neuron (SMN) transcript is encoded by two genes, SMNT and SMNC. The autosomal recessive proximal spinal muscular atrophy that maps to 5q12 is caused by mutations in the SMNT gene. The SMNT gene can be distinguished from the SMNC gene by base-pair changes in exons 7 and 8. SMNT exon 7 is not detected in approximately 95% of SMA cases due to either deletion or sequence-conversion events. Small mutations in SMNT now have been identified in some of the remaining nondeletion patients. However, there is no reliable quantitative assay for SMNT, to distinguish SMA compound heterozygotes from non-5q SMA-like cases (phenocopies) and to accurately determine carrier status. We have developed a quantitative PCR assay for the determination of SMNT and SMNC gene-copy number. This report demonstrates how risk estimates for the diagnosis and detection of SMA carriers can be modified by the accurate determination of SMNT copy number.

Indexed as

Chromosomes, Human, Pair 5Gene DosageGenetic Carrier ScreeningAmino Acid SequenceBase SequenceChromosome MappingCloning, MolecularCyclic AMP Response Element-Binding ProteinCystic Fibrosis Transmembrane Conductance RegulatorDNADNA PrimersExonsFemaleHumansMaleMotor NeuronsCFTR protein, humanCyclic AMP Response Element-Binding ProteinCystic Fibrosis Transmembrane Conductance RegulatorDNADNA PrimersNerve Tissue ProteinsNucleic Acid HeteroduplexesRNA-Binding ProteinsSMN1 protein, humanSMN2 protein, humanSMN Complex ProteinsSurvival of Motor Neuron 1 ProteinSurvival of Motor Neuron 2 Protein

Identifiers

PMID9199562
PMCPMC1716150
OpenAlexW1986164507

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.