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Cerebellar vermis hypoplasia in CHARGE syndrome: clinical and molecular characterization of 18 unrelated Korean patients

Authors
 Young Bae Sohn  ;  Jung Min Ko  ;  Choong Ho Shin  ;  Sei Won Yang  ;  Jong-Hee Chae  ;  Kyung-A Lee 
Citation
 Journal of Human Genetics, Vol.61(3) : 235-239, 2016 
Journal Title
 Journal of Human Genetics 
ISSN
 1434-5161 
Issue Date
2016
MeSH
Adolescent ; CHARGE Syndrome/genetics* ; CHARGE Syndrome/pathology ; Cerebellar Vermis/pathology* ; Child ; Child, Preschool ; Female ; Genetic Predisposition to Disease ; Humans ; Infant ; Infant, Newborn ; Male ; Republic of Korea ; Young Adult
Abstract
CHARGE syndrome (OMIM 214800) is a rare autosomal-dominant congenital malformation syndrome that results from haploinsufficiency of the chromodomain helicase DNA-binding protein 7 (CHD7). We performed a phenotypic characterization and genetic analysis of CHD7 in 18 Korean patients with CHARGE syndrome. Eighteen unrelated Korean patients (10 females and 8 males; age range 0.0-19.6 years) with CHARGE syndrome were enrolled. Clinical data were collected by retrospective review of medical records. A serial analysis via sequencing and multiple ligation-dependent probe amplification of CHD7 was performed to determine the molecular genetic spectrum of the patients. The prevalence of cardinal symptoms was as follows: coloboma (13/18, 72.2%), heart defects (13/18, 72.2%), choanal atresia/stenosis (4/18, 22.2%), retarded growth (10/18, 55.6%), genital anomalies (15/18, 83.3%) and ear abnormalities (18/18, 100%). Five patients had cerebellar vermis hypoplasia (5/17, 29.4%) with no clinical symptoms or signs of cerebellar dysfunction. Furthermore, we identified genetic alterations in all 18 patients, including 10 novel mutations. Considering its frequency among patients with CHD7 mutations, cerebellar vermis hypoplasia may be a clinical diagnostic clue of CHARGE syndrome, although it is not included in the diagnostic criteria. And, the identification of CHD7 mutations may help the confirmative diagnosis.
Full Text
http://www.nature.com/jhg/journal/v61/n3/full/jhg2015135a.html
DOI
10.1038/jhg.2015.135
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Laboratory Medicine (진단검사의학교실) > 1. Journal Papers
Yonsei Authors
이경아(Lee, Kyung A) ORCID logo https://orcid.org/0000-0001-5320-6705
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/146521
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