Results 31 to 40 of about 35,670 (271)

Co-existence of Congenital Adrenal Hyperplasia and Familial Hypokalemic Periodic Paralysis due to CYP21A2 and SCN4A Pathogenic Variants

open access: yesJCRPE, 2021
Steroid 21-hydroxylase deficiency is the most common cause of congenital adrenal hyperplasia (CAH), usually due to biallelic variants in CYP21A2. Classical 21-hydroxylase deficiency is characterised by virilisation of the external genitalia in females ...
Tuğba Kontbay, İhsan Turan
doaj   +1 more source

Exploring the Potential of Sulfur Moieties in Compounds Inhibiting Steroidogenesis

open access: yesBiomolecules, 2023
This study reports on the synthesis and evaluation of novel compounds replacing the nitrogen-containing heterocyclic ring on the chemical backbone structure of cytochrome P450 17α-hydroxylase/12,20-lyase (CYP17A1) inhibitors with a phenyl bearing a ...
Tomasz M. Wróbel   +16 more
doaj   +1 more source

Functional studies of p.R132C, p.R149C, p.M283V, p.E431K, and a novel c.652-2A>G mutations of the CYP21A2 gene [PDF]

open access: yes, 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   +3 more sources

MUTATIONAL SPECTRUM OF THE STEROID 21-HYDROXYLASE GENE [PDF]

open access: yesPediatric Research, 1993
Lesions in the gene encoding steroid 21-hydroxylase (CYP21) result in defective adrenal steroid synthesis; the severe forms are known as congenital adrenal hyperplasia. To facilitate.complete characterization of mutations in this region of landemly repeated genes, we have developed selective PCR amplification and direct sequencing of full-length ...
A Wedell, H Luthman, E M Ritzén
openaire   +1 more source

Monitoring treatment in pediatric patients with 21-hydroxylase deficiency

open access: yesFrontiers in Endocrinology, 2023
21-hydroxylase deficiency (21-OHD) is the most common form of congenital adrenal hyperplasia. In most developed countries, newborn screening enables diagnosis of 21-OHD in asymptomatic patients during the neonatal period.
Tomoyo Itonaga   +2 more
doaj   +1 more source

Twist-bend nematics and heliconical cholesterics: a physico-chemical analysis of phase transitions and related specific properties [PDF]

open access: yes, 2021
Certain nematic liquid crystals, e.g., those formed by banana-shaped molecules, can exhibit a low-temperature twist-bend nematic (Ntb) phase. Upon addition of chiral dopants, a chiral version of the twist-bend phase (N*tb) can be observed below the conventional chiral nematic (N*) phase, while under electric field the N* phase is transformed into a ...
arxiv   +1 more source

Pubertal presentation in seven patients with congenital adrenal hyperplasia due to P450 Oxidoreductase deficiency [PDF]

open access: yes, 2010
Context: P450 oxidoreductase (POR) is a crucial electron donor to all microsomal P450 cytochrome (CYP) enzymes including 17α-hydroxylase (CYP17A1), 21-hydroxylase (CYP21A2) and P450 aromatase.
Adachi   +59 more
core   +2 more sources

Short-Term Fasting Attenuates Overall Steroid Hormone Biosynthesis in Healthy Young Women. [PDF]

open access: yes, 2022
Context Fasting is stressful for the human body. It is managed by metabolic adaptations maintaining energy homeostasis and involves steroid hormone biosynthesis, but the exact interplay between energy and steroid metabolism remains elusive. Women with
Fluck, Christa E   +6 more
core   +1 more source

The "backdoor pathway" of androgen synthesis in human male sexual development. [PDF]

open access: yes, 2019
Mammalian sex determination (male versus female) is largely controlled by genes, whereas sex differentiation (development of reproductive structures) is largely controlled by hormones. Work in the 20th century indicated that female external anatomy was a
Auchus, Richard J, Miller, Walter L
core   +2 more sources

Impaired hepatic drug and steroid metabolism in congenital adrenal hyperplasia due to P450 oxidoreductase deficiency [PDF]

open access: yes, 2010
Objective: Patients with congenital adrenal hyperplasia due to P450 oxidoreductase (POR) deficiency(ORD) present with disordered sex development and glucocorticoid deficiency.
Arlt   +25 more
core   +2 more sources

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