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Genetic etiologies associated with infantile hydrocephalus in a Chinese infantile cohort 
 
Genetic etiologies associated with infantile hydrocephalus in a Chinese infantile cohort
  Hong-Fang Mei, Xin-Ran Dong, Hui-Yao Chen, Yu-Lan Lu, Bing-Bing Wu, Hui-Jun Wang, Guo-Qiang Cheng, Lai-Shuan Wang, Yun Cao, Lin Yang, Wen-Hao Zhou
 [Abstract] [Full Text] [PDF]   Pageviews: 1977 Times
 
Background: Infantile hydrocephalus (IHC) is commonly related to other central nervous system diseases, which may have adverse effects on prognosis. The causes of IHC are heterogeneous, and the genetic etiologies are not fully understood. This study aimed to analyze the genetic etiologies of an IHC cohort.
Methods: The data for 110 IHC patients who had received exome sequencing at the Clinical Genetic Center of the Children¡¯s Hospital of Fudan University between 2016 and 2019 were reviewed and analyzed retrospectively. An exome-wide association analysis (EWAS) was performed within this cohort using IHC as the study phenotype.
Results: Of the 110 IHC patients, a pathogenic or likely pathogenic variant was identified in 16 (15%) patients, spanning 13 genes. The genes were mainly associated with metabolic disorders, brain abnormalities, and genetic syndromes. IHC patients who had unclear clinical etiology were more likely to possess a genetic etiology. Based on previous studies and on our EWAS results, ZEB1, SBF2, and GNAI2 were over-represented among IHC patients and might affect the signaling pathways involved in IHC formation
Conclusions: Our study showed heterogeneous genetic etiologies in an IHC cohort. It is essential to perform genetic testing on IHC patients who have unclear clinical etiology, and genes associated with metabolic disorders, brain abnormalities, and genetic syndromes should be noted. In addition, when aiming to discover IHC susceptibility genes, genes that might influence the signaling pathways involved in IHC formation should be prioritized.
 
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World Journal of Pediatric Surgery

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