Analysis of Steroid 21-Hydroxylase Gene in Five Unrelated Japanese Patients with 21-Hydroxylase Deficiency
نویسندگان
چکیده
منابع مشابه
Heterogeneity in the gene locus for steroid 21-hydroxylase deficiency.
DNA was analysed from 33 patients with congenital adrenal hyperplasia due to steroid 21-hydroxylase deficiency. In each case Southern blots were prepared from a number of restriction enzyme digests and hybridised with probes for both the 21-hydroxylase and the adjacent fourth component of complement (C4). Evidence for deletion of the active 21-hydroxylase gene (CYP21B) was found in 13 cases and...
متن کاملPrenatal Diagnosis and Treatment of Steroid 21-Hydroxylase Deficiency
Steroid 21-hydroxylase deficiency congenital adrenal hyperplasia is the most common cause of genital ambiguity in females at birth. Inhibited formation of cortisol causes increase in the release of ACTH in turn leading to overproduction of adrenal androgens. This predisposes the affected female fetus to prenatal development of genital ambiguity. A large number of patients also have aldosterone ...
متن کامل[Congenital adrenal hyperplasia due to steroid 21-hydroxylase deficiency].
Congenital adrenal hyperplasia is a general term applied to a group of several inherited enzymatic defects of cortisol biosynthesis. The most frequent cause of this disease is by far 21-hydroxylase deficiency which is considered one of the commonest metabolic disorders. The degree to which the activity of this enzyme is diminished correlates with the severity of congenital adrenal hyperplasia a...
متن کاملAnalysis of the chimeric CYP21P/CYP21 gene in steroid 21-hydroxylase deficiency.
BACKGROUND A single nonfunctional chimeric gene with its 5' and 3' ends corresponding to CYP21P and CYP21, respectively, is caused by unequal gene crossover in the CYP21 genes during meiosis. The presence of the chimeric CYP21P/CYP21 molecule can not be detected by conventional PCR methods and therefore may be lost in PCR amplification. This leads to a false result and diagnostic discordance. ...
متن کاملHLA Haplotype Associated with 21-Hydroxylase Deficiency
We have segregated DRI+ individuals into two categories according to whether or not their class II+ cells stimulated T lymphocyte clones specific for or restricted to DR1. In a majority of cases (87%), failure to stimulate was a property of cells having the B14;DR1 haplotype and/or nonclassical 21-hydroxylase deficiency. Absence of clonal proliferation could not be explained by release of an in...
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ژورنال
عنوان ژورنال: Endocrinologia Japonica
سال: 1987
ISSN: 0013-7219,2185-6370
DOI: 10.1507/endocrj1954.34.373