Results 11 to 20 of about 76,273 (258)
Definitions, 2020 Cortisol synthesis in the zona fasciculata of the adrenal cortex requires five enzymatic steps: the cholesterol side chain is cleaved to yield pregnenolone, which is dehydrogenated at the 3β position to progesterone, which is successively hydroxylated at
P. White
semanticscholar +3 more sources
High frequency of nonclassical steroid 21-hydroxylase deficiency.
Obstetrical & Gynecological Survey, 1985 Nonclassical steroid 21-hydroxylase deficiency is an autosomal recessive disorder that is defined by clinical and hormonal criteria that distinguishes it from the classical 21-hydroxylase deficiency. No estimates of the gene frequency of nonclassical 21-hydroxylase deficiency, also called attenuated, late-onset, acquired, and cryptic adrenal ...
P. Speiser +5 more
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Prenatal diagnosis and treatment of steroid 21-hydroxylase deficiency. [PDF]
Clin Pediatr Endocrinol, 2008 Steroid 21-hydroxylase deficiency (21-OHD) accounts for 90-95% of congenital adrenal hyperplasia (CAH) cases. It is classified into three distinct clinical phenotypes: the salt-wasting (SW), simple virilizing (SV) and nonclassical forms (NC). As girls with the SW and SV forms of 21-OHD are exposed to high systemic levels of adrenal androgens during ...
Tajima T, Fujieda K.
europepmc +4 more sources
Structure of human steroid 21-hydroxylase genes. [PDF]
Proceedings of the National Academy of Sciences, 1986 We have determined the structure of cDNA and two genomic genes encoding steroid 21-hydroxylase [21-OHase; steroid 21-monooxygenase; steroid, hydrogen-donor:oxygen oxidoreductase (21-hydroxylating); EC 1.14.99.10]. If this cytochrome P-450 enzyme is defective, cortisol cannot be synthesized, resulting in congenital adrenal hyperplasia. The cDNA encoding
P. White, M. New, B. Dupont
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Phenotypically Male Congenital Adrenal Hyperplasia Patient with Huge Space-occupying Adrenal Masses: a Case Report and Literature Review [PDF]
Zhongguo quanke yixue, 2023 Congenital adrenal hyperplasia (CAH) is an autosomal recessive genetic disease encompassing enzyme deficiencies in the process of adrenal steroidogenesis, which leads to adrenal cortex dysfunction.
RAO Yufeng, MENG Liheng, ZHOU Jia, LIANG Xinghuan, HUANG Zhenxing, QIN Yingfen
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Recent advances in biochemical and molecular analysis of congenital adrenal hyperplasia due to 21-hydroxylase deficiency [PDF]
Annals of Pediatric Endocrinology & Metabolism, 2016 The term congenital adrenal hyperplasia (CAH) covers a group of autosomal recessive disorders caused by defects in one of the steroidogenic enzymes involved in the synthesis of cortisol or aldosterone from cholesterol in the adrenal glands. Approximately
Jin-Ho Choi, Gu-Hwan Kim, Han-Wook Yoo
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Non-Classic Congenital Adrenal Hyperplasia in Childhood: A Review
Sexes, 2023 Congenital adrenal hyperplasia (CAH) is a heterogeneous group of autosomal recessive disorders due to defects in adrenal steroid biosynthesis. In about 90% of patients, CAH is caused by pathogenetic variants in CYP21A2 gene, impairing the function of 21 ...
Giulia Bertolucci +7 more
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Functional studies of p.R132C, p.R149C, p.M283V, p.E431K, and a novel c.652-2A>G mutations of the CYP21A2 gene [PDF]
, 2014 Congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency is the most frequent inborn error of metabolism and accounts for 90–95% of CAH cases.
Bruque, Carlos David +7 more
core +6 more sources
Haplotypes of the steroid 21-hydroxylase gene region encoding mild steroid 21-hydroxylase deficiency. [PDF]
Proceedings of the National Academy of Sciences, 1991 Haplotypes of the complement 4 (C4) and steroid 21-hydroxylase [21-OHase; steroid hydrogen-donor: oxygen oxidoreductase (21-hydroxylating), EC 1.14.99.10] repeated gene complex were studied in nine families with at least one member affected with a mild form of 21-OHase deficiency.
B, Haglund-Stengler +3 more
openaire +2 more sources
Classic and current concepts in adrenal steroidogenesis: a reappraisal
Archives of Endocrinology and Metabolism, 2022 Adrenal steroid biosynthesis and its related pathology are constant evolving disciplines. In this paper, we review classic and current concepts of adrenal steroidogenesis, plus control mechanisms of steroid pathways, distribution of unique enzymes and ...
Claudio E. Kater +2 more
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