Evidence map›Paper›PMID 15372251›Full record

ArticleJournal of neurology2004

Carrier incidence for spinal muscular atrophy in southern Chinese.

Vivian Chan, Ben Yip, Irene Yam, Patrick Au, Che-Kit Lin, Virginia Wong, Tai-Kwong Chan

Abstract read
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In one paragraph

Article in Journal of neurology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 23% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
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  10. Observational
  11. Carrier frequency of spinal muscular atrophy in Thailand.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2019
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  12. Review
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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

7 authors at 1 institution in 1 country.

Vivian ChanUniversity Department of Medicine, Queen Mary Hospital, Pokfulam Road, Hong Kong. vnychana@hkucc.hku.hk
Ben Yip
Irene Yam
Patrick Au
Che-Kit Lin
Virginia Wong
Tai-Kwong Chan
Queen Mary Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A real time quantitative PCR (QPCR) method using TaqMan technology was used to assess the copy number of the two survival motor neuron genes (SMN1 and SMN2) on chromosome 5q13. This allows the accurate determination of carriers for spinal muscular atrophy (SMA), with one copy of SMN1. Analysis of 569 normal southern Chinese individuals revealed a carrier incidence of 1.6%, similar to that found in the western society. Study of 42 obligatory carriers showed a (2 + 0) genotype in two (4.8 %). In 27 SMA patients with homozygous deletion of the SMN1 gene, the number of SMN2 gene correlated with disease phenotype, with 68% of type II and III patients carrying three or more SMN2 genes, whilst the incidence of three or more SMN2 genes in the normal population was 1.57%.

Indexed as

Genetic Carrier ScreeningAsian PeopleChinaCyclic AMP Response Element-Binding ProteinHumansIncidenceMuscular Atrophy, SpinalNerve Tissue ProteinsRNA-Binding ProteinsSMN Complex ProteinsSurvival of Motor Neuron 1 ProteinSurvival of Motor Neuron 2 ProteinCyclic AMP Response Element-Binding ProteinNerve Tissue ProteinsRNA-Binding ProteinsSMN1 protein, humanSMN2 protein, humanSMN Complex ProteinsSurvival of Motor Neuron 1 ProteinSurvival of Motor Neuron 2 Protein

Identifiers

PMID15372251
OpenAlexW2023837230

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.