Genetic and preimplantation diagnosis of cystic kidney disease with ventriculomegaly.,Journal of Human Genetics

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Genetic and preimplantation diagnosis of cystic kidney disease with ventriculomegaly.
Journal of Human Genetics ( IF 3.5 ) Pub Date : 2020-02-13 , DOI: 10.1038/s10038-020-0731-0
Lei Zhang ₁ , Zhiping Zhang ₁ , Xingyu Bi ₁ , Yong Mao ₂ , Yanbing Cheng ₂ , Pengfei Zhu ₁ , Suming Xu ₁ , Yaoqin Wang ₁ , Xiaoyu Zhan ₁ , Junmei Fan ₁ , Yuan Yuan ₁ , Huixia Bi ₁ , Xueqing Wu ₁

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Ventriculomegaly with cystic kidney disease (VMCKD) is a rare and severe disorder characterized by cerebral ventriculomegaly, greatly elevated maternal serum alpha-fetoprotein (MSAFP) or amniotic fluid alpha-fetoprotein (AFAFP) levels and kidney disease similar to Finnish congenital nephrosis. Recessive mutations in the CRB2 (NM_173689) gene have been shown to cause the syndrome. Here, we described a nonconsanguineous Chinese family with two fetuses affected with VMCKD. A novel compound heterozygous mutation was identified in the CRB2 gene with co-segregation. One mutation [c.1960G>C (p.A654P)] was inherited from the father, while another mutation [c.3078_c.3093delGGCGCGGCCCCGGCCC (p.L1026Lfs*110)] was inherited from the mother. Preimplantation genetic testing for monogenic disease (PGT-M) was performed for the carrier couple with full informed consent and successfully blocked the inheritance of the disease. Our study has important implications on molecular diagnosis and genetic counseling for VMCKD and extends the mutation spectrum in CRB2 gene.

更新日期：2020-02-13

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