Evidence map›Paper›PMID 25888055›Full record

ArticleBMC musculoskeletal disorders2015

Molecular characterization and copy number of SMN1, SMN2 and NAIP in Chinese patients with spinal muscular atrophy and unrelated healthy controls.

Ping Fang, Liang Li, Jian Zeng, Wan-Jun Zhou, Wei-Qing Wu, Ze-Yan Zhong, Ti-Zhen Yan, Jian-Sheng Xie, Jing Huang, Li Lin and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
1.0field-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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Recent research on the treatment of spinal muscular atrophy.Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2022
    Review
  10. Article
  11. Genomic Variability in the Survival Motor Neuron Genes (International journal of molecular sciences · 2021
    Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Observational
  17. 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
    Article
  18. [Association of copy number of SMN1 and SMN2 with clinical phenotypes in children with spinal muscular atrophy].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2019
    Article
  19. Article
  20. 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

12 authors at 5 institutions in 1 country.

Ping FangDepartment of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Avenue North1838, Guangzhou, Guangdong, People's Republic of China. 1065370927@qq.com.
Liang LiDepartment of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Avenue North1838, Guangzhou, Guangdong, People's Republic of China. liliang@smu.edu.cn.
Jian ZengDepartment of Clinical Laboratory, The Fuzhou General Hospital, Nanjing Military Command, Fuzhou, Fujian, People's Republic of China. zengjian1980222@163.com.
Wan-Jun ZhouDepartment of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Avenue North1838, Guangzhou, Guangdong, People's Republic of China. zhouwanjun72@163.com.
Wei-Qing WuPrenatal Diagnosis Center, Shenzhen Maternity and Child Healthcare Hospital, Shenzhen, Guangdong, People's Republic of China. rainwwq@163.com.
Ze-Yan ZhongDepartment of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Avenue North1838, Guangzhou, Guangdong, People's Republic of China. yan_16@126.com.
Ti-Zhen YanLiuzhou Key Laboratory of birth defects prevention and control, Liuzhou Municipal Maternity and Child Healthcare Hospital, Liuzhou, Guangxi, People's Republic of China. yantizhen@sohu.com.
Jian-Sheng XiePrenatal Diagnosis Center, Shenzhen Maternity and Child Healthcare Hospital, Shenzhen, Guangdong, People's Republic of China. jianshengxie2000@aliyun.com.
Jing HuangThe Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, People's Republic of China. 337024342@qq.com.
Li LinDepartment of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Avenue North1838, Guangzhou, Guangdong, People's Republic of China. echo63310394@hotmail.com.
Ying ZhaoPrenatal Diagnostic Center, Dongguan Maternal and Children Health Hospital, Dongguan, Guangdong, People's Republic of China. jiowing@126.com.
Xiang-Min XuDepartment of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Avenue North1838, Guangzhou, Guangdong, People's Republic of China. gzxuxm@pub.guangzhou.gd.cn.
Southern Medical University · CNShenzhen Maternity and Child Healthcare Hospital · CNDongguan People’s Hospital · CNFuzhou General Hospital of Nanjing Military Command · CNLiuzhou Maternal and Child Health Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSpinal muscular atrophy (SMA) is caused by SMN1 dysfunction, and the copy number of SMN2 and NAIP can modify the phenotype of SMA. The aim of this study was to analyze the copy numbers and gene structures of SMA-related genes in Chinese SMA patients and unrelated healthy controls.

methodsForty-two Chinese SMA patients and two hundred and twelve unrelated healthy Chinese individuals were enrolled in our study. The copy numbers and gene structures of SMA-related genes were measured by MLPA assay.

resultsWe identified a homozygous deletion of SMN1 in exons 7 and 8 in 37 of 42 patients (88.1%); the other 5 SMA patients (11.9%) had a single copy of SMN1 exon 8. The proportions of the 212 unrelated healthy controls with different copy numbers for the normal SMN1 gene were 1 copy in 4 individuals (1.9%), 2 copies in 203 (95.7%) and 3 copies in 5 (2.4%). Three hybrid SMN genes and five genes that lack partial sequences were found in SMA patients and healthy controls. Distributions of copy numbers for normal SMN2 and NAIP were significantly different (P < 0.001) in people with and without SMA.

conclusionThe copy numbers and gene structures of SMA-related genes were different in Chinese SMA patients and healthy controls.

Indexed as

DNA Copy Number VariationsAdultAsian PeopleCase-Control StudiesExonsFemaleHumansMaleMuscular Atrophy, SpinalNeuronal Apoptosis-Inhibitory ProteinNucleic Acid Amplification TechniquesSurvival of Motor Neuron 1 ProteinSurvival of Motor Neuron 2 ProteinNAIP protein, humanNeuronal Apoptosis-Inhibitory ProteinSMN1 protein, humanSMN2 protein, humanSurvival of Motor Neuron 1 ProteinSurvival of Motor Neuron 2 Protein

Identifiers

PMID25888055
PMCPMC4328246
OpenAlexW2082192213

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.