scholarly journals POR polymorphisms are associated with 21 hydroxylase deficiency

2021 ◽  
Author(s):  
F. Pecori Giraldi ◽  
S. Einaudi ◽  
A. Sesta ◽  
F. Verna ◽  
M. Messina ◽  
...  
Keyword(s):  
Clinical Features ◽  
Modifier Genes ◽  
Age At Diagnosis ◽  
Adrenal Hyperplasia ◽  
Phenotype Correlation ◽  
Hydroxylase Deficiency ◽  
Salt Wasting ◽  
Control Subjects ◽  
Younger Age ◽  
21 Hydroxylase Deficiency

Abstract Purpose Genotype–phenotype correlation in congenital 21 hydroxylase deficiency is strong but by no means absolute. Indeed, clinical and hormonal features may vary among patients carrying similar CYP21A2 mutations, suggesting that modifier genes may contribute to the phenotype. Aim of the present study was to evaluate whether polymorphisms in the p450  oxidoreductase (POR) gene may affect clinical features in patients with 21 hydroxylase deficiency Methods Sequencing of the POR gene was performed in 96 patients with 21 hydroxylase deficiency (49 classic, 47 non-classic) and 43 control subjects. Results Prevalence of POR polymorphisms in patients with 21 hydroxylase was comparable to controls and known databases. The rs2228104 polymorphism was more frequently associated with non-classic vs classic 21 hydroxylase deficiency (allelic risk 7.09; 95% C.I. 1.4–29.5, p < 0.05). Classic 21 hydroxylase-deficient carriers of the minor allele in the rs2286822/rs2286823 haplotype presented more frequently the salt-wasting form (allelic risk 1.375; 95% C.I. 1.138–1.137), more severe Prader stage at birth (allelic risk 3.85; 95% C.I. 3.78–3.92), higher ACTH levels, and younger age at diagnosis. Conclusions Polymorphisms in the POR gene are associated with clinical features of 21 hydroxylase deficiency both as regards predisposition to classic vs non-classic forms and severity of classic adrenal hyperplasia.

scholarly journals A Case of Salt-Wasting Congenital Adrenal Hyperplasia with Triple Homozygous Mutation: Review of Literature

2020 ◽  
Author(s):  
Maria Laura Iezzi ◽  
Gaia Varriale ◽  
Luca Zagaroli ◽  
Stefania Lasorella ◽  
Marco Greco ◽  
...  
Keyword(s):  
Congenital Adrenal Hyperplasia ◽  
Autosomal Recessive ◽  
Homozygous Mutation ◽  
Adrenal Hyperplasia ◽  
Phenotype Correlation ◽  
Hydroxylase Deficiency ◽  
Autosomal Recessive Disorders ◽  
Salt Wasting ◽  
21 Hydroxylase Deficiency ◽  
Recessive Disorders

AbstractCongenital adrenal hyperplasia (CAH) due to steroid 21-hydroxylase deficiency represents a group of autosomal recessive disorders characterized by impaired cortisol production due to altered upstream steroid conversions, subclassified as classic and nonclassic forms. The genotype–phenotype correlation is possible in the most frequent case but not in all. Despite in literature many mutations are known, there is the possibility of finding a new genetic pattern in patients with CAH.

scholarly journals The results of therapy of congenital adrenal hyperplasia in children in perm region

2021 ◽  
Vol 12 (3) ◽  
pp. 25-30
Author(s):  
Yulia M. Tomilina ◽  
Galina V. Chistousova ◽  
Ludmila V. Sofronova
Keyword(s):  
Congenital Adrenal Hyperplasia ◽  
Clinical Features ◽  
Treatment Efficacy ◽  
Medical Emergency ◽  
Adrenal Hyperplasia ◽  
Hydroxylase Deficiency ◽  
Complete Control ◽  
Salt Wasting ◽  
21 Hydroxylase Deficiency ◽  
Perm Region

Background. Congenital adrenal hyperplasia (CAH) is a group of autosomal recessive disorders. About 90% of all children with CAH have 21-hydroxylase deficiency which is required for the synthesis of glucocorticoids and mineralocorticodes. The salt-wasting form of CAH develops with a deficiency of both types of hormones. This form of CAH results in infant death if not treated, therefore early disease detection and start of treatment are very important. Aim of research is to study the clinical features of the course of the disease and evaluate the treatment efficacy of children with salt-wasting form of CAH in the Perm region. Materials and methods. We conducted an analysis of the clinical features of the salt-wasting form of CAH in 40 children of the Perm region. To evaluate the treatment efficacy following symptoms were analyzed: salty food craving, hyperpigmentation of skin, hirsutism, delayed or accelerated growth, etc. and parameters of water-electrolytic balance, the level of 17-hydroxyprogesterone, adrenocorticotropic hormone, renin. Results and discussion. Despite the modern possibilities of diagnosing and treating CAH, the complete control of the disease cant be achieved in all children. Almost all the children examined had either symptoms of replacement therapy failure or overdose symptoms. Hormonal imbalance disorders were performed by a few children without any symptoms of the disease. Conclusion. During our research we concluded that young children often have issues with an overdose of hormonal drugs and frequent occurrence of salt-wasting crises against the background of associated diseases, while for teenagers, problems associated with an insufficient dose of glucocorticoid drugs are relevant. Also, significant difficulties in the treatment of children with CAH are associated with the short action of hydrocortisone. One way to solve these problems is to organize a school for parents of children with CAH. Creating motivation, explaining the principles of treatment and importance of regular taking of drugs, as well as algorithm in medical emergency is an important step in achieving control for the disease.

scholarly journals Hiperplasia Congénita da Suprarrenal por Deficiência de 21-Hidroxílase: Correlação Genótipo-Fenótipo

2015 ◽  
Vol 28 (1) ◽  
pp. 56 ◽  
Author(s):  
Catarina Mendes ◽  
Inês Vaz Matos ◽  
Luís Ribeiro ◽  
Maria João Oliveira ◽  
Helena Cardoso ◽  
...  
Keyword(s):  
Molecular Analysis ◽  
Genetic Defects ◽  
Adrenal Hyperplasia ◽  
Phenotype Correlation ◽  
Hydroxylase Deficiency ◽  
Salt Wasting ◽  
Genotype Phenotype Correlation ◽  
Age Of Diagnosis ◽  
Simple Virilizing ◽  
21 Hydroxylase Deficiency

<strong>Introduction:</strong> Congenital adrenal hyperplasia due to 21-hydroxylase deficiency is one of the most frequent inborn conditions. It is caused by distinct mutations in the CYP21A2 gene and in the majority of cases the disease’s severity correlates with CYP21A2 allelic variation Our aim was to describe the mutational spectrum of CYP21A2 and evaluate genotype-phenotype correlation in a cohort of portuguese patients with 21-hydroxylase deficiency.<br /><strong>Material and Methods</strong>: Retrospective study of 22 patients with clinical diagnosis of 21-hydroxylase deficiency. Molecular analysis of CYP21A2 was performed and genotype-phenotype correlation was then established.<br /><strong>Results</strong>: Genotyping was performed in 22 unrelated patients: 5 with classic salt-wasting (average age of diagnosis 10,2 days; minimum 1, maximum 20 days), 7 with classic simple virilizing (average age of diagnosis 3,5 years; minimum 0 days, maximum 7 years) and 10 with nonclassical form (average age of diagnosis 5,7 years; minimum 4 years, maximum 8 years). The most frequent genetic defects in the classic forms were I2 splice (24%) and I172N (24%), followed by Q318X (16%) and gene deletions (16%) and in the nonclassical form, the V281L (80%). The overall concordance between genotype and phenotype was 81,8%. Genotype accurately predicted phenotype in 83,3%, 100% and 90% of patients with classic salt-wasting, classic simple virilizing and nonclassical mutations, respectively.<br /><strong>Discussion</strong>: The frequency of genetic defects in our patients was comparable to similar studies. In most cases there was a good correlation between genotype and phenotype.<br /><strong>Conclusions</strong>: Molecular analysis of CYP21A2 provides useful information in terms of prediction of disease severity, genetic and prenatal counseling.<br /><strong>Keywords</strong>: Adrenal Hyperplasia, Congenital; Genotype; Phenotype; Steroid 21-Hydroxylase.

scholarly journals Concurrence of Meningomyelocele and Salt-Wasting Congenital Adrenal Hyperplasia due to 21-Hydroxylase Deficiency

2015 ◽  
Vol 2015 ◽  
pp. 1-4
Author(s):  
Heves Kırmızıbekmez ◽  
Rahime Gül Yesiltepe Mutlu ◽  
Serdar Moralıoğlu ◽  
Ahmet Tellioğlu ◽  
Ayşenur Cerrah Celayir
Keyword(s):  
Congenital Adrenal Hyperplasia ◽  
Growth Retardation ◽  
Adrenal Hyperplasia ◽  
Hydroxylase Deficiency ◽  
Salt Wasting ◽  
Significant Regression ◽  
One Year ◽  
The One ◽  
21 Hydroxylase Deficiency

Congenital adrenal hyperplasia (CAH) is a group of inherited defects of cortisol biosynthesis. A case of classical CAH due to 21-hydroxylase deficiency (21-OHD) with early onset of salt waste and concurrence of meningomyelocele (MMC) was presented here. The management of salt-wasting crisis which is complicated by a postrenal dysfunction due to neurogenic bladder was described. Possible reasons of growth retardation in the one-year follow-up period were discussed. A significant regression of the phallus with proper medical treatment was also mentioned.

scholarly journals Molecular diagnosis of patients with congenital adrenal hyperplasia due to 21-hydroxylase deficiency

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Tania Mayvel Espinosa Reyes ◽  
Teresa Collazo Mesa ◽  
Paulina Arasely Lantigua Cruz ◽  
Adriana Agramonte Machado ◽  
Emma Domínguez Alonso ◽  
...  
Keyword(s):  
Congenital Adrenal Hyperplasia ◽  
Point Mutations ◽  
Adrenal Hyperplasia ◽  
Hydroxylase Deficiency ◽  
Cross Sectional ◽  
Salt Wasting ◽  
Frequent Mutations ◽  
Detection Of Mutations ◽  
21 Hydroxylase Deficiency ◽  
Intron 2

Abstract Background Congenital adrenal hyperplasia (CAH) is an autosomal recessive group of diseases. 21-Hydroxylase deficiency (21OHD) accounts for between 95 and 99% of all CAH cases. Objectives To characterize the genotype of patients clinically diagnosed with 21OHD and to identify the most frequent mutations in the Cuban population. Methods Cross-sectional descriptive study that included all patients diagnosed with 21OHD from January 2000 to December 2018. For the molecular analysis of the CYP21A2 gene, a protocol was used that used the polymerase chain reaction in 2 stages; in the first stage genomic DNA was amplified and 5 point mutations were detected in the second stage (Intron 2, Deletion of 8 bp, G318X, I172N and P30L). Results The 5 point mutations were identified in 31 of the 55 (56%) studied patients, 16/21 (76%) in the salt-wasting, 12/18 (67%) in the simple virilizing and 3/16 (19%) in the nonclassical form. The Intron 2 mutation was the most frequent, followed by G318X and 8 bp deletion. Compound heterozygotes were found in 10 patients, all corresponded to classic forms of the disease. Conclusions The causal CYP21A2 gene mutation was detected in 56% (72% in classic CAH), which makes the method encouraging. The most frequent mutations observed were Intron 2 and G318X. The detection of mutations offers confirmation of diagnosis, prediction of phenotype and genetic counseling.

11C-Metomidate PET/CT Detected Multiple Ectopic Adrenal Rest Tumors in a Woman With Congenital Adrenal Hyperplasia

2020 ◽  
Author(s):  
Pia Burman ◽  
Henrik Falhammar ◽  
Erik Waldenström ◽  
Anders Sundin ◽  
Ulrika Bitzén
Keyword(s):  
Congenital Adrenal Hyperplasia ◽  
Vena Cava ◽  
Serum Testosterone ◽  
Adrenal Hyperplasia ◽  
Hydroxylase Deficiency ◽  
Salt Wasting ◽  
18Fdg Pet ◽  
Pet Ct ◽  
Adrenal Rest ◽  
21 Hydroxylase Deficiency

Abstract Context Women with congenital adrenal hyperplasia (CAH) may present with androgen excess that is difficult to control with conventional suppressive doses of glucocorticoids. Clinical management is challenging, and the woman is at great risk of developing steroid-induced complications. Patients and Methods A 32-year-old woman with salt-wasting CAH due to 21-hydroxylase deficiency underwent right-sided adrenalectomy because of a large myelolipoma. Over the years, androgens became increasingly difficult to suppress on prednisolone 5 + 0 + 2.5 mg daily, and at age 39 years the left adrenal with an enlarging myelolipoma was removed. A month later serum testosterone levels had increased from 4.1 preoperatively to 18.3 nmol/L (reference 0.2-1.8 nmol/L), and adrenocorticotropin levels from 32 to 283 pmol/L (reference &lt; 14 pmol/L). No adrenal parenchyma was visualized on computed tomography (CT). In the further search for the source of the markedly elevated testosterone, positron emission tomography (PET) was performed with 2 different tracers, 18fluorodeoxyglucose (18FDG) reflecting glucose metabolism and 11C-metomidate, an inhibitor of 11-β-hydroxylase targeting adrenocortical tissue. Results 18FDG-PET/CT with cosyntropin stimulation showed ovarian/paraovarian hypermetabolism, suggestive of adrenal rest tumors. Further characterization with 11C-metomidate PET/CT showed uptakes localized to the ovaries/adnexa, behind the spleen, and between the right crus diaphragmaticus and inferior vena cava. Conclusion Adrenal rest tumors can give rise to high androgen levels in spite of suppressive supraphysiological glucocorticoid doses. This case illustrates, for the first time, the value of 11C-metomidate PET as a sensitive method in documenting adrenal rest tumors, currently considered rare in women with CAH.

Sign in / Sign up

Export Citation Format

Share Document