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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Ann+Pediatr+Endocrinol+Metab
2013 ; 18
(3
): 128-34
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Genotype-phenotype correlation in 27 pediatric patients in congenital adrenal
hyperplasia due to 21-hydroxylase deficiency in a single center
#MMPMID24904866
Yoo Y
; Chang MS
; Lee J
; Cho SY
; Park SW
; Jin DK
; Park HD
Ann Pediatr Endocrinol Metab
2013[Sep]; 18
(3
): 128-34
PMID24904866
show ga
PURPOSE: The purpose of the study was to evaluate endocrine patterns of patients
with congenital adrenal hyperplasia and each gene mutation and to analyze the
correlation between each phenotype and genotype. METHODS: This was a
retrospective study of the patients with congenital adrenal hyperplasia in the
pediatric outpatient clinic at the Samsung Medical Center from November 1994 to
December 2012. We analyzed the medical records of 27 patients (male, 19; female,
8) with congenital adrenal hyperplasia who had been diagnosed by genetic testing
to have 21-hydroxylase deficiency. RESULTS: In genetic analysis of 54 alleles
from 27 patients, 13 types of mutations were identified. The distribution of
21-hydroxylase deficiency gene mutations revealed that intron 2 splice site
(c.293-13A/C>G) mutations and large deletions were the most common, at 31.5% and
22.2% respectively, followed by p.I173N, p.R356W, and p.I172N mutations at 11.1%,
9.3%, and 9.3%, respectively. Other mutations were observed at 1.9-3.7%. No novel
mutations were detected. CONCLUSION: The analysis of 54 alleles revealed 13 types
of mutation. The salt wasting form showed a good correlation between genotype and
phenotype, but the simple virilizing and nonclassic forms showed inconsistencies
between genotype and phenotype. The distribution of CYP21A2 mutations was
evaluated for 21-hydroxylase deficiency patients from a single center. This study
provides limited data on mutation spectrum and genotype-phenotype correlation of
21-hydroxylase deficiency in Korea.