Xuan Xu1, Ping Gong2, Jie Wen3. 1. Children's Medical Center, People's Hospital, Changsha, Hunan Province, China, 410005. 2. Children's Medical Center, People's Hospital, Changsha, Hunan Province, China, 410005. gongp246@163.com. 3. Pediatric orthopedics, People's Hospital, Changsha, Hunan Province, China, 410005.
Abstract
PURPOSE: Kartagener syndrome (KS), also known as visceral inversion-nasosinusitis-bronchiectasis syndrome, or familial bronchiectasis, is an autosomal recessive inherited disease. In this study, through two cases of KS, we aimed to assess the clinical and genetic characteristics of KS caused by DNAH5 mutations. METHODS: The two cases of KS from the same family underwent extensive clinical assessments, with next-generation DNA sequencing and bioinformatics analysis to identify pathogenic genes. In addition, Sanger sequencing was used to verify the pedigrees. RESULTS: The present study employed a directional capture strategy for hereditary disease screening, which correctly identified the virulence sites in the pedigree, and facilitated the differential diagnosis among multiple genes. Two novel mutations were detected in DNAH5: c.7778C>T (missense mutation) and c.13729G>A (nonsense mutation). They were not found in dbSNP, 1000 Genomes, and ExAC. CONCLUSIONS: These findings demonstrated that new DNAH5 mutations could be used for molecular diagnosis of KS, providing families with genetic counseling and prenatal diagnosis.
PURPOSE:Kartagener syndrome (KS), also known as visceral inversion-nasosinusitis-bronchiectasis syndrome, or familial bronchiectasis, is an autosomal recessive inherited disease. In this study, through two cases of KS, we aimed to assess the clinical and genetic characteristics of KS caused by DNAH5 mutations. METHODS: The two cases of KS from the same family underwent extensive clinical assessments, with next-generation DNA sequencing and bioinformatics analysis to identify pathogenic genes. In addition, Sanger sequencing was used to verify the pedigrees. RESULTS: The present study employed a directional capture strategy for hereditary disease screening, which correctly identified the virulence sites in the pedigree, and facilitated the differential diagnosis among multiple genes. Two novel mutations were detected in DNAH5: c.7778C>T (missense mutation) and c.13729G>A (nonsense mutation). They were not found in dbSNP, 1000 Genomes, and ExAC. CONCLUSIONS: These findings demonstrated that new DNAH5 mutations could be used for molecular diagnosis of KS, providing families with genetic counseling and prenatal diagnosis.
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