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Zhuang J, Luo Q, Xie M, Chen Y, Jiang Y, Zeng S, Wang Y, Xie Y, Chen C. Etiological identification of recurrent male fatality due to a novel NSDHL gene mutation using trio whole-exome sequencing: A rare case report and literature review. Mol Genet Genomic Med 2023; 11:e2121. [PMID: 36504312 PMCID: PMC10009909 DOI: 10.1002/mgg3.2121] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 11/17/2022] [Accepted: 11/29/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Congenital hemidysplasia with ichthyosiform nevus and limb defects (CHILD) syndrome is a rare X-linked dominant, lethal male disorder caused by mutations to the NSDHL (NAD(P)H steroid dehydrogenase-like protein) gene. It primarily exhibits strictly unilateral congenital hemidysplasia with ichthyosiform erythroderma and ipsilateral limb defects in female individuals. METHODS A Chinese couple suffering from recurrent spontaneous abortion in male fetuses was enrolled in this study. Chromosomal microarray analysis and whole-exome sequencing were performed for genetic etiological diagnosis. RESULTS A 33-year-old pregnant woman with recurrent spontaneous abortion was experiencing her third pregnancy with a male embryo. In this pregnancy, a miscarriage occurred at a gestational age of 10+6 weeks with no copy number variants. However, a novel mutation c.790-6C>T in the NSDHL gene was observed in the fetus through whole-exome sequencing (WES). Parental verification indicated that the NSDHL gene variant was inherited from the mother. Additionally, the variant in the NSDHL gene was absent in her subsequent pregnancy with a female fetus. CONCLUSION In this study, we detected c.790-6C>T, a novel variant in the NSDHL gene that results in recurrent miscarriage in males. Our study may broaden the scope of research on the NSDHL gene in CHILD syndrome and strengthens the application value of WES for the genetic etiological identification of recurrent miscarriage.
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Affiliation(s)
- Jianlong Zhuang
- Center for Prenatal Diagnosis, Quanzhou Women's and Children's Hospital, Quanzhou, Fujian Province, China
| | - Qi Luo
- Department of Public Health for Women and Children, Quanzhou Women's and Children's Hospital, Quanzhou, Fujian, China
| | - Meihua Xie
- Prenatal Diagnosis Center, Yueyang Central Hospital, Yueyang, China
| | - Yu'e Chen
- Ultrasonography, Quanzhou Women's and Children's Hospital, Quanzhou, China
| | - Yuying Jiang
- Center for Prenatal Diagnosis, Quanzhou Women's and Children's Hospital, Quanzhou, Fujian Province, China
| | - Shuhong Zeng
- Center for Prenatal Diagnosis, Quanzhou Women's and Children's Hospital, Quanzhou, Fujian Province, China
| | - Yuanbai Wang
- Center for Prenatal Diagnosis, Quanzhou Women's and Children's Hospital, Quanzhou, Fujian Province, China
| | - Yingjun Xie
- Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, PR China.,Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, PR China
| | - Chunnuan Chen
- Department of Neurology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, PR China
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Tan EC, Chia SY, Rafi'ee K, Lee SX, Kwek ABE, Tan SH, Ng VWL, Wei H, Koo S, Koh AL, Koh MJA. A novel NSDHL variant in CHILD syndrome with gastrointestinal manifestations and localized skin involvement. Mol Genet Genomic Med 2021; 10:e1848. [PMID: 34957706 PMCID: PMC8801147 DOI: 10.1002/mgg3.1848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 12/14/2021] [Indexed: 11/11/2022] Open
Abstract
Background CHILD syndrome is an X‐linked dominant disorder associated with pathogenic mutations in the NSDHL gene. The condition is predominantly found in females as it is lethal in males. Most cases present at birth with extensive unilateral ichthyosiform erythroderma involving the trunk and limbs. Milder and less extensive presentations have been reported, leading to misdiagnosis especially during early childhood. Methods and Results We report an adult female of Malay ancestry who presented with minimal skin and limb involvement. She was only diagnosed in adulthood when she presented with gastrointestinal symptoms and worsening of skin manifestations. The clinical diagnosis was suspected after a combination of clinical, pathological and immunohistochemistry correlation, and molecularly confirmed with the discovery of a frameshift variant in NSDHL. The novel variant was inherited from her mother who had some linear hypopigmented patches over the medial aspects of both her arms and right forearm. Conclusion We uncovered a novel frameshift variant associated with presentations that cast a new light on the clinical features of CHILD syndrome.
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Affiliation(s)
- Ene-Choo Tan
- Research Laboratory, KK Women's & Children's Hospital, Singapore, Singapore.,Paediatrics Academic Clinical Programme, SingHealth Duke-NUS Graduate Medical School, Singapore, Singapore
| | - Shi Yun Chia
- Paediatrics Academic Clinical Programme, SingHealth Duke-NUS Graduate Medical School, Singapore, Singapore.,Dermatology Service, KK Women's and Children's Hospital, Singapore, Singapore
| | - Khadijah Rafi'ee
- Research Laboratory, KK Women's & Children's Hospital, Singapore, Singapore
| | - Shan Xian Lee
- Department of Dermatology, Changi General Hospital, Singapore, Singapore
| | - Andrew Boon Eu Kwek
- Department of Gastroenterology and Hepatology, Changi General Hospital, Singapore, Singapore
| | - Sze Hwa Tan
- Department of Laboratory Medicine, Changi General Hospital, Singapore, Singapore
| | - Victor Weng Leong Ng
- Department of Laboratory Medicine, Changi General Hospital, Singapore, Singapore
| | - Heming Wei
- Research Laboratory, KK Women's & Children's Hospital, Singapore, Singapore
| | - Stephanie Koo
- Research Laboratory, KK Women's & Children's Hospital, Singapore, Singapore
| | - Ai Ling Koh
- Paediatrics Academic Clinical Programme, SingHealth Duke-NUS Graduate Medical School, Singapore, Singapore.,Genetics Service, KK Women's and Children's Hospital, Singapore, Singapore
| | - Mark Jean-Aan Koh
- Paediatrics Academic Clinical Programme, SingHealth Duke-NUS Graduate Medical School, Singapore, Singapore.,Dermatology Service, KK Women's and Children's Hospital, Singapore, Singapore
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