Cited by 27Sexual Differentiation and DisordersAdrenal Hormones and DisordersMetabolism and Genetic Disorders

21-Hydroxylase deficiency families with HLA identical affected and unaffected sibs

Open access
Sinnott, P J, Dyer, P A, Price, D A, Harris, R, Strachan, T·1989·Journal of Medical Genetics

Abstract

During our investigations of polymorphisms at, and in the immediate chromosomal vicinity of, the 21-hydroxylase locus in families with 21-hydroxylase deficiency, three families were found to show marked discordance in clinical features of HLA identical subjects. In one family, there is discordance between a boy with the simple virilising form of 21-hydroxylase deficiency and his two younger sisters, who are both HLA identical to their brother, but who have additional salt wasting features. In the other two families, one subject is severely affected and has very high 17-hydroxyprogesterone levels, but has an HLA identical sib who is asymptomatic and shows only slightly raised 17-hydroxyprogesterone levels. In all cases, HLA identity, as indicated by protein polymorphism studies (HLA-A, B, DR, C4A, C4B, and Bf typing), has been verified at the gene organisation level using 21-hydroxylase and complement C4 DNA probes. An HLA-Bw47 bearing haplotype in one of the latter families has not been transmitted to the affected child and appears to carry a normal 21-OHB allele and two genes which specify C4A allotypes.

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 · 10.1136/jmg.26.1.10

Cites

35 of 35 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?

  • HLA-identical individuals in a single family may have different clinical forms of CAH despite HLA identity, possibly representing extraadrenal 21-hydroxylation, de novo mutations, or multiple genetic crossover events.

    “HLA-identical individuals in a single family may have different clinical forms of CAH despite HLA identity (389 -392), possibly representing extraadrenal 21-hydroxylation, de novo mutations, or multiple genetic crossover events.”

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

Research works printed but not linked: 1

  1. [14]14. Schneider PM, Carroll MS, Alper CA, et al. Polymorphism of the human complement C4 and steroid 21-hydroxylase genes. J Clin Invest 1986;78:650-7.

Cited by

Sorted by citations

Authors
Sinnott, P. J., Dyer, P. A., Price, D. A., Harris, R., & Strachan, T.
Affiliations
St Mary's Hospital (GB)
Venue
Journal of Medical Genetics
Publisher
BMJ
Published
1989-01
Volume
26
Issue
1
Pages
10-17
ISSN
  • 0022-2593 (ISSN-L)
  • 1468-6244
OpenAlex
W2157655978
Cited by
27
References
35
FWCI
1.55
Type
journal article
Language
en
Open access
Locations
  • Journal of Medical Genetics (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Metabolism and Genetic Disorders
Keywords
21-hydroxylase deficiency, congenital adrenal hyperplasia, complement C4, salt wasting, 17-hydroxyprogesterone, gene transmission
MeSH terms
Adrenal Hyperplasia, Congenital, Child, Chromosome Mapping, Complement C4, Female, Haplotypes, HLA Antigens, Humans, Pedigree, Steroid Hydroxylases, HLA-B Antigens

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