Cited by 52Connective tissue disorders researchProteoglycans and glycosaminoglycans researchGenomics and Rare Diseases

Redefining the progeroid form of ehlers–danlos syndrome: Report of the fourth patient with B4GALT7 deficiency and review of the literature

Open access
Guo, Michael H., Stoler, Joan, Lui, Julian, Nilsson, Ola, Bianchi, Diana W., Hirschhorn, Joel N., Dauber, Andrew·2013·American Journal of Medical Genetics Part A

Abstract

Proteoglycans are a component of the extracellular matrix and are critical for cellular and tissue function. Mutations in proteoglycan components and enzymes involved in proteoglycan synthesis have been implicated in several growth disorders, with common features including short stature and skeletal dysplasia. For example, mutations in B4GALT7, a gene whose protein product catalyzes proteoglycan synthesis, have been associated with the rare progeroid variant of Ehlers–Danlos syndrome. Here, we conducted exome sequencing in a patient with a previously undiagnosed growth disorder and identified compound heterozygous mutations in B4GALT7. This patient is just the fourth individual with genetically confirmed progeroid variant of Ehlers–Danlos syndrome. The mutations include a previously characterized c.808C>T p.Arg270Cys substitution, and a novel c.122T>C p.Leu41Pro substitution. We demonstrate that the novel mutation caused decreased levels of the enzyme, supporting the pathogenicity of the mutation. Our report identifies a novel mutation in B4GALT7 causing the progeroid variant of Ehlers–Danlos syndrome and contributes an extensive phenotypic characterization of a patient with the syndrome. We also reviewed the previous literature in addition to the present patient, and conclude that the key features associated with B4GALT7 deficiency are short stature, developmental anomalies of the forearm bones and elbow, and bowing of the extremities, in addition to the classic features of Ehlers–Danlos syndrome. This report helps define the phenotype of the progeroid variant of Ehlers–Danlos syndrome and furthers our understanding of the effect of proteoglycan defects in growth disorders. © 2013 Wiley Periodicals, Inc.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/ajmg.a.36128

Cites

26 of 26 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The ages at publication of spEDS-B4GALT7 patients ranged from 2 years to 33 years.

    “The ages at publication ranged from 2 years to 33 years [Kresse et al., 1987, Faiyaz-Ul-Haque et al., 2004, Guo et al., 2013, Arunrut et al., 2016, Salter et al., 2016].”

    From The Ehlers–Danlos syndromes, rare types (2017) · cites this paper as Guo et al., 2013

    The Results (Clinical Report; page unavailable) describe this paper’s patient at age 10, which falls within the claimed range. The Discussion (Comparison with Previous Reports; page unavailable) identifies other B4GALT7-deficient patients, but our copy does not establish that their ages at publication—or the ages across the cited reports—ranged from 2 to 33 years. (LLM, conf=0.81)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Guo, M. H., Stoler, J., Lui, J., Nilsson, O., Bianchi, D. W., Hirschhorn, J. N., & Dauber, A.
Affiliations
  • Harvard University (US)
  • Boston Children's Hospital (US)
  • National Institutes of Health (US)
  • Tufts Medical Center (US)
  • Broad Institute (US)
Corresponding author
Dauber, Andrew
Venue
American Journal of Medical Genetics Part A
Publisher
Wiley
Published
2013-08-16
Volume
161
Issue
10
Pages
2519-2527
ISSN
  • 1552-4825 (ISSN-L)
  • 1552-4833
OpenAlex
W2069824197
Cited by
52
References
26
Citations by year
2026: 1 · 2024: 4 · 2023: 1 · 2022: 3 · 2021: 4 · 2020: 6 · 2019: 9 · 2018: 2 · 2017: 5 · 2016: 6 · 2015: 5 · 2014: 5
FWCI
3.53
Type
journal article
Language
en
Open access
Locations
  • American Journal of Medical Genetics Part A (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Harvard University
  • Harvard Catalyst
  • National Institutes of Health
  • National Center for Research Resources (UL1RR025758)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (K23HD073351, ZIAHD000640)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Connective tissue disorders research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Proteoglycans and glycosaminoglycans research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
Keywords
proteoglycan synthesis, compound heterozygosity, short stature, skeletal dysplasia, growth disorders, exome sequencing, variant pathogenicity
MeSH terms
Animals, Ehlers-Danlos Syndrome, Galactosyltransferases, Humans, Infant, Male, Mutation, Phenotype, Gene Expression, Exome

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review