Classical and late-onset forms of congenital adrenal hyperplasia caused by 21-OH deficiency reveal different alterations in the C4/21-OH gene region

B. O. Boehm, C. Rosak, T. L J Boehm, P. Kuehnl, P. C. White, K. Schöffling

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Congenital adrenal hyperplasia (CAH) is due to defective adrenal cortisol biosynthesis. In most cases, deficiency of a P 450-C21 specific steroid hydroxylase impairing cortisol synthesis has been found. The disease is HLA-linked, and on clinical grounds it can be divided into two major forms, the classical and the non-classical type. Here, evidence is presented that the classical and the non-classical forms of CAH caused by 21-OH deficiency are due to different genetic alterations in the C4/21-OH gene region. In most cases of classical CAH associated with the HLA-Bw47 antigen, a specific and selective loss of the 21-OH B gene was observed with some interesting exceptions. Alterations in the 21-OH gene region in the non-classical forms of CAH, patients either HLA-B14; DR1 homo- or heterozygous, are different. Our data indicate the possibility of gene conversion events in this genomic region in non-classical CAH.

Original languageEnglish (US)
Pages (from-to)437-448
Number of pages12
JournalMolecular Biology and Medicine
Volume3
Issue number5
StatePublished - 1986

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Congenital Adrenal Hyperplasia
Genes
HLA-B14 Antigen
Hydrocortisone
HLA-DR1 Antigen
Steroid Hydroxylases
Gene Conversion
Congenital adrenal hyperplasia due to 21 hydroxylase deficiency

ASJC Scopus subject areas

  • Genetics(clinical)
  • Molecular Biology

Cite this

Classical and late-onset forms of congenital adrenal hyperplasia caused by 21-OH deficiency reveal different alterations in the C4/21-OH gene region. / Boehm, B. O.; Rosak, C.; Boehm, T. L J; Kuehnl, P.; White, P. C.; Schöffling, K.

In: Molecular Biology and Medicine, Vol. 3, No. 5, 1986, p. 437-448.

Research output: Contribution to journalArticle

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AU - Rosak, C.

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AU - Kuehnl, P.

AU - White, P. C.

AU - Schöffling, K.

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AB - Congenital adrenal hyperplasia (CAH) is due to defective adrenal cortisol biosynthesis. In most cases, deficiency of a P 450-C21 specific steroid hydroxylase impairing cortisol synthesis has been found. The disease is HLA-linked, and on clinical grounds it can be divided into two major forms, the classical and the non-classical type. Here, evidence is presented that the classical and the non-classical forms of CAH caused by 21-OH deficiency are due to different genetic alterations in the C4/21-OH gene region. In most cases of classical CAH associated with the HLA-Bw47 antigen, a specific and selective loss of the 21-OH B gene was observed with some interesting exceptions. Alterations in the 21-OH gene region in the non-classical forms of CAH, patients either HLA-B14; DR1 homo- or heterozygous, are different. Our data indicate the possibility of gene conversion events in this genomic region in non-classical CAH.

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