Evidence map›Paper›PMID 24949742›Full record

ArticlePloS one2014

A novel p. Gly630Ser mutation of COL2A1 in a Chinese family with presentations of Legg-Calvé-Perthes disease or avascular necrosis of the femoral head.

Na Li, Jian Yu, Xiang Cao, Qiu-Yue Wu, Wei-Wei Li, Tian-Fu Li, Cui Zhang, Ying-Xia Cui, Xiao-Jun Li, Zhi-Min Yin and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.8field-weighted citation impact, top 16% 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, 42 citations in OpenAlex.

  1. Association ofGenes · 2025
    Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Molecular Biomarkers in Perthes Disease: A Review.Diagnostics (Basel, Switzerland) · 2023
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. International journal of general medicine · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Comprehensive genetic exploration of skeletal dysplasia using targeted exome sequencing.Genetics in medicine : official journal of the American College of Medical Genetics · 2016
    Article
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 2 institutions in 1 country.

Na LiInstitute of Laboratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing, PR China.
Jian YuDepartment of Orthopaedics, Jinling Hospital, Nanjing University School of Medicine, Nanjing, P.R. China.
Xiang CaoInstitute of Laboratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing, PR China.
Qiu-Yue WuInstitute of Laboratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing, PR China.
Wei-Wei LiInstitute of Laboratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing, PR China.
Tian-Fu LiInstitute of Laboratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing, PR China.
Cui ZhangInstitute of Laboratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing, PR China.
Ying-Xia CuiInstitute of Laboratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing, PR China.
Xiao-Jun LiInstitute of Laboratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing, PR China.
Zhi-Min YinInstitute of Laboratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing, PR China.
Xin-Yi XiaInstitute of Laboratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing, PR China.
Nanjing University · CNNanjing General Hospital of Nanjing Military Command · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveMutations in the type II collagen gene are associated with certain human disorders, collectively termed type II collagenopathies. They include Legg-Calvé-Perthes disease (LCPD) and avascular necrosis of the femoral head (ANFH). These two diseases are skeletal dysplasias, inherited in an autosomal dominant fashion, characterized by groin pain, dislocation of the hip and diminished joint mobility. Coxa vara and elevation of the greater trochanter of the femur comprise the typical phenotype of LCPD, but do not occur in ANFH. Lack of synthesis of type II collagen and structural defects are responsible for the major clinical outcomes, because collagen is the essential matrix protein of all connective tissues. Type II collagen, encoded by the COL2A1 gene, contains N- and C- terminal regions that are cleaved after secretion into the extracellular matrix, and the core area is composed of a triple helical (Gly-X-Y) domain. If the Gly in this specific region is replaced by other amino acids, the structure of type II collagen will be destroyed.

methodForty-five members of a four-generation family were recruited and investigated. Diagnosis was made by independent orthopedic surgeons and radiologists. A mutation of the COL2A1 gene was detected.

resultIn our research, we identify a heterozygous mutation (c.1888 G>A, p. Gly630Ser) in exon 29 of COL2A1 in the Gly-X-Y domain, in a Chinese family affected by LCPD and ANFH. Our findings provide significant clues to the phenotype-genotype relationships in these syndromes and may be helpful in clinical diagnosis. Furthermore, these results should assist further studies of the mechanisms underlying collagen diseases.

conclusionOur data add new variants to the repertoire of COL2A1 mutation resulting in related collagenopathies.

Indexed as

MutationPedigreeAmino Acid SequenceAnimalsAsian PeopleChildChild, PreschoolCollagen Type IIFemaleFemur Head NecrosisHumansLegg-Calve-Perthes DiseaseMaleMiceMolecular Sequence DataPhenotypeCOL2A1 protein, humanCollagen Type II

Identifiers

PMID24949742
PMCPMC4065060
OpenAlexW2012318057

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.