PTPN11 유전자검사로 진단된 가족성 Noonan 증후군 1례
Familial Noonan Syndrome Confirmed by PTPN11 Gene Test
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초록
Noonan syndrome is characterized by short stature, mental retardation, typical facial morphology, webbed neck and congenital heart disease. Noonan syndrome can be inherited in an autosomal dominant manner but all Korean patients with Noonan syndrome have been reported as sporadic cases thus far. In approximately 50-60% of cases, the disease is caused by mutation in the PTPN11 (protein tyrosine phosphatase, nonreceptor type 11) gene on chromosome 12, encoding SHP-2 (Src homology protein-tyrosine phosphatase-2). We have experienced a boy and his father with typical clinical features of Noonan syndrome in whom Asn58Asp mutation of the PTPN11 gene were identified. To the best of our knowledge, this is the first report of genetically confirmed familial Noonan syndrome in Korea.
Abstract
Noonan syndrome is characterized by short stature, mental retardation, typical facial morphology, webbed neck and congenital heart disease. Noonan syndrome can be inherited in an autosomal dominant manner but all Korean patients with Noonan syndrome have been reported as sporadic cases thus far. In approximately 50-60% of cases, the disease is caused by mutation in the PTPN11 (protein tyrosine phosphatase, nonreceptor type 11) gene on chromosome 12, encoding SHP-2 (Src homology protein-tyrosine phosphatase-2). We have experienced a boy and his father with typical clinical features of Noonan syndrome in whom Asn58Asp mutation of the PTPN11 gene were identified. To the best of our knowledge, this is the first report of genetically confirmed familial Noonan syndrome in Korea.
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