Evidence map›Paper›PMID 26739529›Full record

ArticleJournal of Zhejiang University. Science. B2016

Association between SMN2 methylation and disease severity in Chinese children with spinal muscular atrophy.

Yan-yan Cao, Yu-jin Qu, Sheng-xi He, Yan Li, Jin-Ll Bai, Yu-wei Jin, Hong Wang, Fang Song

Open access · bronzeAbstract read
In one paragraph

Article in Journal of Zhejiang University. Science. B, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

16 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. [Research progress on phenotypic modifier genes in spinal muscular atrophy].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2025
    Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Novel challenges in spinal muscular atrophy - How to screen and whom to treat?Annals of clinical and translational neurology · 2019
    Review
  15. Review
  16. Biology and clinical relevance of noncoding sno/scaRNAs.Trends in cardiovascular medicine · 2018
    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

8 authors at 1 institution in 1 country.

Yan-yan CaoDepartment of Medical Genetics, Capital Institute of Pediatrics, Beijing 100020, China.
Yu-jin QuDepartment of Medical Genetics, Capital Institute of Pediatrics, Beijing 100020, China.
Sheng-xi HeDepartment of Medical Genetics, Capital Institute of Pediatrics, Beijing 100020, China.
Yan LiDepartment of Medical Genetics, Capital Institute of Pediatrics, Beijing 100020, China.
Jin-Ll BaiDepartment of Medical Genetics, Capital Institute of Pediatrics, Beijing 100020, China.
Yu-wei JinDepartment of Medical Genetics, Capital Institute of Pediatrics, Beijing 100020, China.
Hong WangDepartment of Medical Genetics, Capital Institute of Pediatrics, Beijing 100020, China.
Fang SongDepartment of Medical Genetics, Capital Institute of Pediatrics, Beijing 100020, China.
Capital Institute of Pediatrics · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The homozygous loss of the survival motor neuron 1 (SMN1) gene is the primary cause of spinal muscular atrophy (SMA), a neuromuscular degenerative disease. A genetically similar gene, SMN2, which is not functionally equivalent in all SMA patients, modifies the clinical SMA phenotypes. We analyzed the methylation levels of 4 CpG islands (CGIs) in SMN2 in 35 Chinese children with SMA by MassARRAY. We found that three CpG units located in CGI 1 (nucleotides (nt) -871, -735) and CGI 4 (nt +999) are significantly hypomethylated in SMA type III compared with type I or II children after receiving Bonferroni correction. In addition to the differentially methylated CpG unit of nt -871, the methylation level of the nt -290/-288/-285 unit was negatively correlated with the expression of SMN2 full-length transcripts (SMN2-fl). In addition, the methylation level at nt +938 was inversely proportional to the ratio of SMN2-fl and lacking exon 7 transcripts (SMN2-Δ7, fl/Δ7), and was not associated with the SMN2 transcript levels. Thus, we can conclude that SMN2 methylation may regulate the SMA disease phenotype by modulating its transcription.

Indexed as

Child, PreschoolChinaCpG IslandsDNA MethylationFemaleGenetic Association StudiesGenetic MarkersGenetic Predisposition to DiseaseHumansInfantMalePolymorphism, Single NucleotidePrevalenceRisk AssessmentSeverity of Illness IndexSpinal Muscular Atrophies of ChildhoodGenetic MarkersSMN2 protein, humanSurvival of Motor Neuron 2 ProteinCpG islandMethylationSpinal muscular atrophySurvival motor neuron 2 (SMN2)

Identifiers

PMID26739529
PMCPMC4710843
OpenAlexW2229920758

What OpenQuestion holds

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Read underepoch 390

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.