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Yang Y, Gao Y, Liu XS, Huang ZM, Zhang Y, Zhang YH, Liu ZY, Chen YX, Pei ZJ. FASTKD1 as a diagnostic and prognostic biomarker for STAD: Insights into m6A modification and immune infiltration. Exp Ther Med 2024; 28:305. [PMID: 38873045 PMCID: PMC11170332 DOI: 10.3892/etm.2024.12594] [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: 12/15/2023] [Accepted: 04/19/2024] [Indexed: 06/15/2024] Open
Abstract
Fas-activated serine/threonine kinase domain 1 (FASTKD1), a known modulator of mitochondrial-mediated cell death and survival processes, has garnered attention for its potential role in various biological contexts. However, its involvement in gastric cancer remains unclear. Thus, the present study aimed to investigate the relationship between FASTKD1 expression and key factors, including clinicopathological characteristics, immune infiltration and m6A modification in stomach adenocarcinoma (STAD). The expression of FASTKD1 was analyzed in STAD and normal adjacent tissues to assess its association with clinicopathological characteristics and survival prognosis. Data from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases were used in this study. Additionally, the findings were validated through immunohistochemical staining. Co-expression analysis of FASTKD1 was performed using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (GO/KEGG) enrichment analysis, Gene Set Enrichment Analysis (GSEA) and LinkedOmics database analysis. An in-depth analysis was conducted using databases, such as Tumor Immune Estimation Resource (TIMER), Gene Expression Profiling Interactive Analysis (GEPIA), GEO and TCGA to explore the potential correlation between FASTKD1 expression and immune infiltration and m6A modification in STAD. The results revealed that FASTKD1 was significantly upregulated across different tumor types, including STAD. Notably, FASTKD1 was able to distinguish between tumor and normal tissue samples with accuracy. Furthermore, the expression levels of FASTKD1 were significantly associated with clinical stage and survival. Through GO/KEGG enrichment analysis and GSEA, it was revealed that the genes co-expressed with FASTKD1 were active in a variety of biological processes. Within the TIMER, GEPIA and TCGA databases, a notable inverse correlation was observed between FASTKD1 expression and the abundance of immune cell subsets. Notably, significant correlations were established between FASTKD1 and m6A modification genes, YTHDF1 and LRPPRC, in both TCGA and GEO datasets. In conclusion, FASTKD1 may serve a significant role in m6A modification and immune infiltration processes, making it a potentially valuable diagnostic and prognostic biomarker in STAD.
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Affiliation(s)
- Yi Yang
- Department of Nuclear Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Yan Gao
- Department of Nuclear Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Shiyan, Hubei 442000, P.R. China
- Hubei Provincial Clinical Research Center for Umbilical Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
- Hubei Provincial Clinical Research Center for Precision Diagnosis and Treatment of Liver Cancer, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Xu-Sheng Liu
- Department of Nuclear Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Zhong-Min Huang
- Department of Medical Ultrasound, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Yu Zhang
- Department of Nuclear Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Yao-Hua Zhang
- Department of Nuclear Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Zi-Yue Liu
- Department of Nuclear Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Yu-Xuan Chen
- Department of Nuclear Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Zhi-Jun Pei
- Department of Nuclear Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Shiyan, Hubei 442000, P.R. China
- Hubei Provincial Clinical Research Center for Umbilical Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
- Hubei Provincial Clinical Research Center for Precision Diagnosis and Treatment of Liver Cancer, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
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2
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Miao W, Chen Y, Kou W, Lai H, Sazal A, Wang J, Li Y, Hu J, Wu Y, Zhao T. The HANTS-fitted RSEI constructed in the vegetation growing season reveals the spatiotemporal patterns of ecological quality. Sci Rep 2024; 14:14686. [PMID: 38918459 PMCID: PMC11199629 DOI: 10.1038/s41598-024-65659-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 06/21/2024] [Indexed: 06/27/2024] Open
Abstract
Yuxi, located in China's central plateau of Yunnan, is grappling with ecological and environmental challenges as it continues to develop its economy. While ecological quality assessment serves as the foundation for ecological protection, it is pivotal to have reliable and long-term methods for assessing the ecological status to support informed decision-making in ecological protection. Reliable and long-term methods for assessing ecological status in order to facilitate informed decision-making in ecological protection are applied. This study utilized Landsat data to reconstruct four indices (greenness, wetness, dryness, and heat) during the vegetation growth in Yuxi from 2000 to 2020 that employs Harmonic Analysis of Time Series (HANTS) method. Subsequently, the annual Remote Sensing Ecological Index (RSEI) was computed by using the reconstructed indices to evaluate ecological quality in Yuxi. Additionally, spatiotemporal patterns and determinants of Yuxi's ecological quality are unveiled through Sen's slope estimator and Mann-Kendall test (Sen + MK) trend analysis, spatial auto-correlation analysis, and geographical detectors applied to year-by-year RSEI data. The findings in the paper indicate that the accuracy of the RSEI is significantly influenced by the vegetation season, suggesting that constructing the RSEI model with data from the vegetation growth season is crucial. Moreover, the HANTS optimization method effectively enhances the ecological indices used in the RSEI model, leading to smoother and more continuous filling of missing data. The difference between the reconstructed RSEI and the original RSEI falls within the range of - 0.15 to 0.15. Yuxi has an average RSEI of 0.54 to emphasis a moderate level of comprehensive ecological quality. Compared with river valley plains, the ecological quality of mountainous areas is higher, and the ecological quality of Yuxi presents a distinct center-edge pattern. From 2000 to 2020, Yuxi's ecological quality exhibited fluctuations, with a slight overall improvement. Land use patterns, particularly in forestry land and impervious surfaces, are identified as the main drivers of these changes. The research offers valuable insights for scientific decision-making related to sustainable development and ecological protection.
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Affiliation(s)
- Wenna Miao
- College of Forestry, Southwest Forestry University, Kunming, 650224, Yunnan, China
- College of Big Data and Intelligent Engineering, Southwest Forestry University, Kunming, 650224, Yunnan, China
| | - Yue Chen
- College of Forestry, Southwest Forestry University, Kunming, 650224, Yunnan, China
| | - Weili Kou
- College of Big Data and Intelligent Engineering, Southwest Forestry University, Kunming, 650224, Yunnan, China.
| | - Hongyan Lai
- College of Forestry, Southwest Forestry University, Kunming, 650224, Yunnan, China
| | - Ahmed Sazal
- College of Big Data and Intelligent Engineering, Southwest Forestry University, Kunming, 650224, Yunnan, China
| | - Jie Wang
- Kunming General Survey of Natural Resources Center, China Geological Survey, Kunming, 650111, China
| | - Youliang Li
- Yunnan Institute of Water Resources and Hydropower Research, Kunming, 650500, Yunnan, China
| | - Jiangjie Hu
- Lijiang Institute of Agricultural Sciences, Lijiang, 674100, Yunnan, China
| | - Yong Wu
- Aerospace Science and Industry (Beijing) Space Information Application Co., Ltd, Kunming, 650111, China
| | - Tianfu Zhao
- Aerospace Science and Industry (Beijing) Space Information Application Co., Ltd, Kunming, 650111, China
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3
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Wang Y, Xu Y, Zhou C, Cheng Y, Qiao N, Shang Q, Xia L, Song J, Gao C, Qiao Y, Zhang X, Li M, Ma C, Fan Y, Peng X, Wu S, Lv N, Li B, Sun Y, Zhang B, Li T, Li H, Zhang J, Su Y, Li Q, Yuan J, Liu L, Moreno-De-Luca A, MacLennan AH, Gecz J, Zhu D, Wang X, Zhu C, Xing Q. Exome sequencing reveals genetic heterogeneity and clinically actionable findings in children with cerebral palsy. Nat Med 2024; 30:1395-1405. [PMID: 38693247 DOI: 10.1038/s41591-024-02912-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 03/06/2024] [Indexed: 05/03/2024]
Abstract
Cerebral palsy (CP) is the most common motor disability in children. To ascertain the role of major genetic variants in the etiology of CP, we conducted exome sequencing on a large-scale cohort with clinical manifestations of CP. The study cohort comprised 505 girls and 1,073 boys. Utilizing the current gold standard in genetic diagnostics, 387 of these 1,578 children (24.5%) received genetic diagnoses. We identified 412 pathogenic and likely pathogenic (P/LP) variants across 219 genes associated with neurodevelopmental disorders, and 59 P/LP copy number variants. The genetic diagnostic rate of children with CP labeled at birth with perinatal asphyxia was higher than the rate in children without asphyxia (P = 0.0033). Also, 33 children with CP manifestations (8.5%, 33 of 387) had findings that were clinically actionable. These results highlight the need for early genetic testing in children with CP, especially those with risk factors like perinatal asphyxia, to enable evidence-based medical decision-making.
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Affiliation(s)
- Yangong Wang
- Children's Hospital of Fudan University and Institutes of Biomedical Sciences of Fudan University, Shanghai, China
| | - Yiran Xu
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Chongchen Zhou
- Rehabilitation Department, Henan Key Laboratory of Child Genetics and Metabolism, Children's Hospital of Zhengzhou University, Zhengzhou, China
| | - Ye Cheng
- Children's Hospital of Fudan University and Institutes of Biomedical Sciences of Fudan University, Shanghai, China
- Shanghai Center for Women and Children's Health, Shanghai, China
| | - Niu Qiao
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine (Shanghai), and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Qing Shang
- Rehabilitation Department, Henan Key Laboratory of Child Genetics and Metabolism, Children's Hospital of Zhengzhou University, Zhengzhou, China
| | - Lei Xia
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Juan Song
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Chao Gao
- Rehabilitation Department, Henan Key Laboratory of Child Genetics and Metabolism, Children's Hospital of Zhengzhou University, Zhengzhou, China
| | - Yimeng Qiao
- Children's Hospital of Fudan University and Institutes of Biomedical Sciences of Fudan University, Shanghai, China
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Xiaoli Zhang
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Ming Li
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Caiyun Ma
- Rehabilitation Department, Henan Key Laboratory of Child Genetics and Metabolism, Children's Hospital of Zhengzhou University, Zhengzhou, China
| | - Yangyi Fan
- Children's Hospital of Fudan University and Institutes of Biomedical Sciences of Fudan University, Shanghai, China
| | - Xirui Peng
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Silin Wu
- Department of Neurosurgery, The Affiliated Zhongshan Hospital of Fudan University, Shanghai, China
| | - Nan Lv
- Rehabilitation Department, Henan Key Laboratory of Child Genetics and Metabolism, Children's Hospital of Zhengzhou University, Zhengzhou, China
| | - Bingbing Li
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Yanyan Sun
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Bohao Zhang
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Tongchuan Li
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Hongwei Li
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Jin Zhang
- Children's Hospital of Fudan University and Institutes of Biomedical Sciences of Fudan University, Shanghai, China
- Shanghai Center for Women and Children's Health, Shanghai, China
| | - Yu Su
- Children's Hospital of Fudan University and Institutes of Biomedical Sciences of Fudan University, Shanghai, China
| | - Qiaoli Li
- Children's Hospital of Fudan University and Institutes of Biomedical Sciences of Fudan University, Shanghai, China
| | - Junying Yuan
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Lei Liu
- Children's Hospital of Fudan University and Institutes of Biomedical Sciences of Fudan University, Shanghai, China
| | - Andres Moreno-De-Luca
- Department of Radiology, Neuroradiology Section, Kingston Health Sciences Centre, Queen's University Faculty of Health Sciences, Kingston, Ontario, Canada
| | - Alastair H MacLennan
- Robinson Research Institute and Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Jozef Gecz
- Robinson Research Institute and Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Dengna Zhu
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China
| | - Xiaoyang Wang
- Centre for Perinatal Medicine and Health, Institute of Clinical Science, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Changlian Zhu
- Department of Pediatrics, Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, The Third Affiliated Hospital and Institute of Neuroscience of Zhengzhou University, Zhengzhou, China.
| | - Qinghe Xing
- Children's Hospital of Fudan University and Institutes of Biomedical Sciences of Fudan University, Shanghai, China.
- Shanghai Center for Women and Children's Health, Shanghai, China.
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4
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Rodriguez-Perez HM, Reyes-Flores OB, Quiñonez-Pacheco Y, Centeno-Navarrete YA, Gonzalez-Vazquez C, Campos-Garcia FJ. Dyslipidemia and hypercalciuria in a patient with pantothenate kinase 2 deficiency: A novel variant and case report. SAGE Open Med Case Rep 2024; 12:2050313X241249088. [PMID: 38680600 PMCID: PMC11047253 DOI: 10.1177/2050313x241249088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 04/04/2024] [Indexed: 05/01/2024] Open
Abstract
Pantothenate kinase-associated neurodegeneration (PKAN, OMIM: 234200) results from biallelic pathogenic variants in PANK2 which encodes pantothenate kinase 2, a crucial mitochondrial enzyme involved in coenzyme A biosynthesis. Pantothenate kinase-associated neurodegeneration patients typically exhibit the distinctive "eye of the tiger" sign on brain magnetic resonance imaging in the globus pallidus, along with psychiatric symptoms, extrapyramidal movements such as parkinsonism and dystonia, eventual speech and gait impairments, and the presence of dysphagia. An 11-year-old girl, with fifth-degree consanguinity, demonstrated typical psychomotor development and growth until the age of 5, when she began experiencing psychiatric symptoms. At the age of 9, she developed hand tremors, progressing to generalized muscular dystonia. By age 10, she exhibited gait and speech impairment. Physical examination revealed extensive generalized dystonia, hand tremors, speech impairment, dysphagia, inability to walk, and heightened osteotendinous reflexes. Metabolic analysis identified dyslipidemia with partial response to statin treatment and normocalcemic hypercalciuria. Exome sequencing revealed a novel likely pathogenic variant in PANK2 (NM_001386393.1:c.526C > G) in a homozygotic state. Pantothenate kinase-associated neurodegeneration typically manifests with generalized dystonia and psychiatric symptoms. Here, we present a Pantothenate kinase-associated neurodegeneration patient with dyslipidemia and hypercalciuria as potentially previously undescribed metabolic phenotype.
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Affiliation(s)
- Henry-Marcelo Rodriguez-Perez
- Pediatrics Residency Program, Faculty of Medicine, Autonomous University of Yucatan, Yucatan, Mexico
- Department of Pediatrics, Yucatan Health Services, General Hospital “Dr. Agustin O’Horan”, Yucatan, Mexico
| | - Olga-Berenice Reyes-Flores
- Department of Pediatrics, Yucatan Health Services, General Hospital “Dr. Agustin O’Horan”, Yucatan, Mexico
| | - Yazmin Quiñonez-Pacheco
- Department of Pediatrics, Yucatan Health Services, General Hospital “Dr. Agustin O’Horan”, Yucatan, Mexico
| | | | - Cruz Gonzalez-Vazquez
- Department of Pediatrics, Yucatan Health Services, General Hospital “Dr. Agustin O’Horan”, Yucatan, Mexico
| | - Felix-Julian Campos-Garcia
- Department of Genetics, Yucatan Health Services, General Hospital “Dr. Agustin O’Horan”, Yucatan, Mexico
- Doctoral Program in Medical Sciences, National Autonomous University of Mexico, Mexico City, Mexico
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5
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Ma H, Zhu L, Yang X, Ao M, Zhang S, Guo M, Dai X, Ma X, Zhang X. Genetic and phenotypic analysis of 225 Chinese children with developmental delay and/or intellectual disability using whole-exome sequencing. BMC Genomics 2024; 25:391. [PMID: 38649797 PMCID: PMC11034079 DOI: 10.1186/s12864-024-10279-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 04/02/2024] [Indexed: 04/25/2024] Open
Abstract
Developmental delay (DD), or intellectual disability (ID) is a very large group of early onset disorders that affects 1-2% of children worldwide, which have diverse genetic causes that should be identified. Genetic studies can elucidate the pathogenesis underlying DD/ID. In this study, whole-exome sequencing (WES) was performed on 225 Chinese DD/ID children (208 cases were sequenced as proband-parent trio) who were classified into seven phenotype subgroups. The phenotype and genomic data of patients with DD/ID were further retrospectively analyzed. There were 96/225 (42.67%; 95% confidence interval [CI] 36.15-49.18%) patients were found to have causative single nucleotide variants (SNVs) and small insertions/deletions (Indels) associated with DD/ID based on WES data. The diagnostic yields among the seven subgroups ranged from 31.25 to 71.43%. Three specific clinical features, hearing loss, visual loss, and facial dysmorphism, can significantly increase the diagnostic yield of WES in patients with DD/ID (P = 0.005, P = 0.005, and P = 0.039, respectively). Of note, hearing loss (odds ratio [OR] = 1.86%; 95% CI = 1.00-3.46, P = 0.046) or abnormal brainstem auditory evoked potential (BAEP) (OR = 1.91, 95% CI = 1.02-3.50, P = 0.042) was independently associated with causative genetic variants in DD/ID children. Our findings enrich the variation spectrums of SNVs/Indels associated with DD/ID, highlight the value genetic testing for DD/ID children, stress the importance of BAEP screen in DD/ID children, and help to facilitate early diagnose, clinical management and reproductive decisions, improve therapeutic response to medical treatment.
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Affiliation(s)
- Heqian Ma
- The School of Public Health, Guilin Medical University, 1 Zhiyuan Road, Lingui District, 541199, Guilin, PR China
| | - Lina Zhu
- Faculty of Pediatrics, The Chinese PLA General Hospital, 100700, Beijing, China
- National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, 100700, Beijing, China
- Beijing Key Laboratory of Pediatric Organ Failure, 100700, Beijing, China
| | - Xiao Yang
- Faculty of Pediatrics, The Chinese PLA General Hospital, 100700, Beijing, China
- National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, 100700, Beijing, China
- Beijing Key Laboratory of Pediatric Organ Failure, 100700, Beijing, China
| | - Meng Ao
- The School of Public Health, Guilin Medical University, 1 Zhiyuan Road, Lingui District, 541199, Guilin, PR China
| | - Shunxiang Zhang
- The School of Public Health, Guilin Medical University, 1 Zhiyuan Road, Lingui District, 541199, Guilin, PR China
| | - Meizhen Guo
- The School of Public Health, Guilin Medical University, 1 Zhiyuan Road, Lingui District, 541199, Guilin, PR China
| | - Xuelin Dai
- The School of Public Health, Guilin Medical University, 1 Zhiyuan Road, Lingui District, 541199, Guilin, PR China
| | - Xiuwei Ma
- Faculty of Pediatrics, The Chinese PLA General Hospital, 100700, Beijing, China.
- National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, 100700, Beijing, China.
- Beijing Key Laboratory of Pediatric Organ Failure, 100700, Beijing, China.
| | - Xiaoying Zhang
- The School of Public Health, Guilin Medical University, 1 Zhiyuan Road, Lingui District, 541199, Guilin, PR China.
- The Guangxi Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, 1 Zhiyuan Road, Lingui District, 541199, Guilin, PR China.
- Guangxi Health Commission Key Laboratory of Entire Lifecycle Health and Care, 1 Zhiyuan Road, Lingui District, 541199, Guilin, PR China.
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6
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Friedman JM, Bombard Y, Carleton B, Issa AM, Knoppers B, Plon SE, Rahimzadeh V, Relling MV, Williams MS, van Karnebeek C, Vears D, Cornel MC. Should secondary pharmacogenomic variants be actively screened and reported when diagnostic genome-wide sequencing is performed in a child? Genet Med 2024; 26:101033. [PMID: 38007624 DOI: 10.1016/j.gim.2023.101033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 11/14/2023] [Accepted: 11/19/2023] [Indexed: 11/27/2023] Open
Abstract
This white paper was prepared by the Global Alliance for Genomics and Health Regulatory and Ethics Work Stream's Pediatric Task Team to review and provide perspective with respect to ethical, legal, and social issues regarding the return of secondary pharmacogenomic variants in children who have a serious disease or developmental disorder and are undergoing exome or genome sequencing to identify a genetic cause of their condition. We discuss actively searching for and reporting pharmacogenetic/genomic variants in pediatric patients, different methods of returning secondary pharmacogenomic findings to the patient/parents and/or treating clinicians, maintaining these data in the patient's health record over time, decision supports to assist using pharmacogenetic results in future treatment decisions, and sharing information in public databases to improve the clinical interpretation of pharmacogenetic variants identified in other children. We conclude by presenting a series of points to consider for clinicians and policymakers regarding whether, and under what circumstances, routine screening and return of pharmacogenomic variants unrelated to the indications for testing is appropriate in children who are undergoing genome-wide sequencing to assist in the diagnosis of a suspected genetic disease.
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Affiliation(s)
- Jan M Friedman
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada.
| | - Yvonne Bombard
- Genomics Health Services Research Program, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - Bruce Carleton
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada; Division of Translational Therapeutics, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada; Pharmaceutical Outcomes Programme, British Columbia Children's Hospital, Vancouver, British Columbia, Canada
| | - Amalia M Issa
- Personalized Precision Medicine & Targeted Therapeutics, Springfield, MA; Health Policy, University of the Sciences, Philadelphia, PA; Pharmaceutical Sciences, University of the Sciences, Philadelphia, PA; Family Medicine, McGill University, Montreal, Quebec, Canada
| | - Bartha Knoppers
- Centre of Genomics and Policy, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
| | - Sharon E Plon
- Department of Pediatrics, Texas Children's Cancer and Hematology Center, Baylor College of Medicine, Houston, TX; Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX; Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX
| | - Vasiliki Rahimzadeh
- Center for Medical Ethics and Health Policy, Baylor College of Medicine, Houston, TX
| | - Mary V Relling
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN
| | | | - Clara van Karnebeek
- Emma Center for Personalized Medicine, Amsterdam UMC, Amsterdam, The Netherlands; Departments of Pediatrics and Human Genetics, Emma Children's Hospital, Amsterdam University Medical Centers, Amsterdam, The Netherlands; United for Metabolic Diseases, The Netherlands; Radboud Center for Mitochondrial and Metabolic Medicine, Department of Pediatrics, Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Danya Vears
- University of Melbourne, Carlton, Melbourne, Australia; Biomedical Ethics Research Group, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Martina C Cornel
- Department of Human Genetics and Amsterdam Public Health Research Institute, Amsterdam University Medical Centres, Amsterdam, The Netherlands
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7
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Dong X, Lu Y, Guo L, Li C, Ni Q, Wu B, Wang H, Yang L, Wu S, Sun Q, Zheng H, Zhou W, Wang S. PICOTEES: a privacy-preserving online service of phenotype exploration for genetic-diagnostic variants from Chinese children cohorts. J Genet Genomics 2024; 51:243-251. [PMID: 37714454 DOI: 10.1016/j.jgg.2023.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 08/31/2023] [Accepted: 09/03/2023] [Indexed: 09/17/2023]
Abstract
The growth in biomedical data resources has raised potential privacy concerns and risks of genetic information leakage. For instance, exome sequencing aids clinical decisions by comparing data through web services, but it requires significant trust between users and providers. To alleviate privacy concerns, the most commonly used strategy is to anonymize sensitive data. Unfortunately, studies have shown that anonymization is insufficient to protect against reidentification attacks. Recently, privacy-preserving technologies have been applied to preserve application utility while protecting the privacy of biomedical data. We present the PICOTEES framework, a privacy-preserving online service of phenotype exploration for genetic-diagnostic variants (https://birthdefectlab.cn:3000/). PICOTEES enables privacy-preserving queries of the phenotype spectrum for a single variant by utilizing trusted execution environment technology, which can protect the privacy of the user's query information, backend models, and data, as well as the final results. We demonstrate the utility and performance of PICOTEES by exploring a bioinformatics dataset. The dataset is from a cohort containing 20,909 genetic testing patients with 3,152,508 variants from the Children's Hospital of Fudan University in China, dominated by the Chinese Han population (>99.9%). Our query results yield a large number of unreported diagnostic variants and previously reported pathogenicity.
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Affiliation(s)
- Xinran Dong
- Center for Molecular Medicine, Children's Hospital of Fudan University, Shanghai 201102, China; Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Yulan Lu
- Center for Molecular Medicine, Children's Hospital of Fudan University, Shanghai 201102, China; Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Lanting Guo
- Department of Bioinformatics, Hangzhou Nuowei Information Technology Co., Ltd, Hangzhou, Zhejiang 310000, China
| | - Chuan Li
- Center for Molecular Medicine, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Qi Ni
- Center for Molecular Medicine, Children's Hospital of Fudan University, Shanghai 201102, China; Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Bingbing Wu
- Center for Molecular Medicine, Children's Hospital of Fudan University, Shanghai 201102, China; Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Huijun Wang
- Center for Molecular Medicine, Children's Hospital of Fudan University, Shanghai 201102, China; Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Lin Yang
- Center for Molecular Medicine, Children's Hospital of Fudan University, Shanghai 201102, China; Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Songyang Wu
- The Third Research Institute of the Ministry of Public Security, Shanghai 200031, China
| | - Qi Sun
- Department of Bioinformatics, Hangzhou Nuowei Information Technology Co., Ltd, Hangzhou, Zhejiang 310000, China
| | - Hao Zheng
- Department of Bioinformatics, Hangzhou Nuowei Information Technology Co., Ltd, Hangzhou, Zhejiang 310000, China
| | - Wenhao Zhou
- Center for Molecular Medicine, Children's Hospital of Fudan University, Shanghai 201102, China; Xiamen Campus of Children's Hospital of Fudan University, Xiamen, Fujian 361006, China.
| | - Shuang Wang
- Department of Bioinformatics, Hangzhou Nuowei Information Technology Co., Ltd, Hangzhou, Zhejiang 310000, China; Institutes for Systems Genetics, West China Hospital, Chengdu, Sichuan 610041, China; Shanghai Putuo People's Hospital, Tongji University, Shanghai 200060, China.
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8
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Louw N, Carstens N, Lombard Z. Incorporating CNV analysis improves the yield of exome sequencing for rare monogenic disorders-an important consideration for resource-constrained settings. Front Genet 2023; 14:1277784. [PMID: 38155715 PMCID: PMC10753787 DOI: 10.3389/fgene.2023.1277784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 11/22/2023] [Indexed: 12/30/2023] Open
Abstract
Exome sequencing (ES) is a recommended first-tier diagnostic test for many rare monogenic diseases. It allows for the detection of both single-nucleotide variants (SNVs) and copy number variants (CNVs) in coding exonic regions of the genome in a single test, and this dual analysis is a valuable approach, especially in limited resource settings. Single-nucleotide variants are well studied; however, the incorporation of copy number variant analysis tools into variant calling pipelines has not been implemented yet as a routine diagnostic test, and chromosomal microarray is still more widely used to detect copy number variants. Research shows that combined single and copy number variant analysis can lead to a diagnostic yield of up to 58%, increasing the yield with as much as 18% from the single-nucleotide variant only pipeline. Importantly, this is achieved with the consideration of computational costs only, without incurring any additional sequencing costs. This mini review provides an overview of copy number variant analysis from exome data and what the current recommendations are for this type of analysis. We also present an overview on rare monogenic disease research standard practices in resource-limited settings. We present evidence that integrating copy number variant detection tools into a standard exome sequencing analysis pipeline improves diagnostic yield and should be considered a significantly beneficial addition, with relatively low-cost implications. Routine implementation in underrepresented populations and limited resource settings will promote generation and sharing of CNV datasets and provide momentum to build core centers for this niche within genomic medicine.
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Affiliation(s)
- Nadja Louw
- Division of Human Genetics, National Health Laboratory Service and School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Nadia Carstens
- Division of Human Genetics, National Health Laboratory Service and School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Genomics Platform, South African Medical Research Council, Cape Town, South Africa
| | - Zané Lombard
- Division of Human Genetics, National Health Laboratory Service and School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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9
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Xiao H, Chen H, Chen X, Lu Y, Wu B, Wang H, Cao Y, Hu L, Dong X, Zhou W, Yang L. Comprehensive assessment of the genetic characteristics of small for gestational age newborns in NICU: from diagnosis of genetic disorders to prediction of prognosis. Genome Med 2023; 15:112. [PMID: 38093364 PMCID: PMC10717355 DOI: 10.1186/s13073-023-01268-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND In China, ~1,072,100 small for gestational age (SGA) births occur annually. These SGA newborns are a high-risk population of developmental delay. Our study aimed to evaluate the genetic profile of SGA newborns in the newborn intensive care unit (NICU) and establish a prognosis prediction model by combining clinical and genetic factors. METHODS A cohort of 723 SGA and 1317 appropriate for gestational age (AGA) newborns were recruited between June 2018 and June 2020. Clinical exome sequencing was performed for each newborn. The gene-based rare-variant collapsing analyses and the gene burden test were applied to identify the risk genes for SGA and SGA with poor prognosis. The Gradient Boosting Machine framework was used to generate two models to predict the prognosis of SGA. The performance of two models were validated with an independent cohort of 115 SGA newborns without genetic diagnosis from July 2020 to April 2022. All newborns in this study were recruited through the China Neonatal Genomes Project (CNGP) and were hospitalized in NICU, Children's Hospital of Fudan University, Shanghai, China. RESULTS Among the 723 SGA newborns, 88(12.2%) received genetic diagnosis, including 42(47.7%) with monogenic diseases and 46(52.3%) with chromosomal abnormalities. SGA with genetic diagnosis showed higher rates in severe SGA(54.5% vs. 41.9%, P=0.0025) than SGA without genetic diagnosis. SGA with chromosomal abnormalities showed higher incidences of physical and neurodevelopmental delay compared to those with monogenic diseases (45.7% vs. 19.0%, P=0.012). We filtered out 3 genes (ITGB4, TXNRD2, RRM2B) as potential causative genes for SGA and 1 gene (ADIPOQ) as potential causative gene for SGA with poor prognosis. The model integrating clinical and genetic factors demonstrated a higher area under the receiver operating characteristic curve (AUC) over the model based solely on clinical factors in both the SGA-model generation dataset (AUC=0.9[95% confidence interval 0.84-0.96] vs. AUC=0.74 [0.64-0.84]; P=0.00196) and the independent SGA-validation dataset (AUC=0.76 [0.6-0.93] vs. AUC=0.53[0.29-0.76]; P=0.0117). CONCLUSION SGA newborns in NICU presented with roughly equal proportions of monogenic and chromosomal abnormalities. Chromosomal disorders were associated with poorer prognosis. The rare-variant collapsing analyses studies have the ability to identify potential causative factors associated with growth and development. The SGA prognosis prediction model integrating genetic and clinical factors outperformed that relying solely on clinical factors. The application of genetic sequencing in hospitalized SGA newborns may improve early genetic diagnosis and prognosis prediction.
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Affiliation(s)
- Hui Xiao
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China
| | - Huiyao Chen
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China
| | - Xiang Chen
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China
| | - Yulan Lu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China
| | - Bingbing Wu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China
| | - Huijun Wang
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China
| | - Yun Cao
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China
| | - Liyuan Hu
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China
| | - Xinran Dong
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China.
| | - Wenhao Zhou
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China.
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China.
- Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China.
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510005, China.
| | - Lin Yang
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China.
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10
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Xiao F, Wu B, Dong C, Cheng G, Cao Y, Wang L, Dong X, Lu Y, Yang L, Chen L, Li L, Pan X, Wei Q, Zhuang D, Chen D, Yin Z, Ni Q, Liu R, Xu S, Li G, Zhang P, Qian Y, Li X, Peng X, Wang Y, Wang H, Zhou W. Genetic spectrums and clinical profiles of critically ill neonates with congenital auricular deformity in the China Neonatal Genomes Project. Hum Genet 2023; 142:1737-1745. [PMID: 37938362 DOI: 10.1007/s00439-023-02612-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/22/2023] [Indexed: 11/09/2023]
Abstract
Congenital auricular deformity (CAD) is a complex phenotype that may occur as a single malformation or part of a congenital syndrome. The genetic architecture and utility of next-generation sequencing (NGS) in a sizable cross-sectional study of critically ill neonates with CAD have not yet been systematically investigated. This cross-sectional study investigated the genetic spectrum in critically ill neonates with CADs. Critically ill neonates with CADs (n = 251) were enrolled between August 8, 2016 and October 1, 2022. All neonates underwent NGS. The outcomes were molecular diagnostic yield, spectrum of genetic events, and clinical findings. Genetic findings were obtained in 107 neonates (42.6%), of which 67.3% (72/107) had pathogenic/likely pathogenic/variants of uncertain significance (P/LP/VUS) gene variations and 32.7% (35/107) had P/LP/VUS copy number variations (CNVs). The diagnostic rates of clinical exome sequencing were similar to those of exome sequencing. The logistic regression model revealed that CAD neonates with craniofacial abnormalities (OR = 4.15, 95% CI 2.29-7.53) or cardiovascular malformation (OR = 2.09, 95% CI 1.14-3.84) are more likely to be attributed to genetic causes. Follow-up analysis revealed that, compared to those in the undiagnosed group, the number of neonates whose care was withdrawn or who died was higher in the genetically diagnosed group (P < 0.05). This study identified a high incidence of genetic causes in critically ill neonates with CADs, with a combination of single-nucleotide variations and CNVs among the genetic causes of CAD. These findings highlight potential of NGS in the genetic testing of critically ill neonates with CADs.
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Affiliation(s)
- Feifan Xiao
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China
| | - Bingbing Wu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China
| | - Chenbin Dong
- Department of Plastic Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China
| | - Guoqiang Cheng
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Key Laboratory of Neonatal Diseases, Ministry of Health, Shanghai, 201102, China
| | - Yun Cao
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Key Laboratory of Neonatal Diseases, Ministry of Health, Shanghai, 201102, China
| | - Laishuan Wang
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Key Laboratory of Neonatal Diseases, Ministry of Health, Shanghai, 201102, China
| | - Xinran Dong
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China
| | - Yulan Lu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China
| | - Lin Yang
- Department of Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China
| | - Liping Chen
- Department of Neonatology, Jiangxi Provincial Children's Hospital, Nanchang, 330029, Jiangxi, China
| | - Long Li
- Department of Neonatology, People's Hospital of Xinjiang Uygur Autonomous Region, Ürümqi, 830001, Xinjiang, China
| | - Xinnian Pan
- Department of Neonatology, Maternal and Child, Health Care Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, Guangxi, China
| | - Qiufen Wei
- Department of Neonatology, Maternal and Child, Health Care Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, Guangxi, China
| | - Deyi Zhuang
- Department of Pediatrics, Xiamen Children's Hospital, Xiamen, 361006, Fujian, China
| | - Dongmei Chen
- Department of Neonatal Intensive Care Unit, Quanzhou Maternity and Children's Hospital, Quanzhou, 362000, Fujian, China
| | - Zhaoqing Yin
- Department of Neonatology, The People's Hospital of Dehong, Dehong, 678400, Yunnan, China
| | - Qi Ni
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China
| | - Rencao Liu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China
| | - Suzhen Xu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China
| | - Gang Li
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China
| | - Ping Zhang
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China
| | - Yanyan Qian
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China
| | - Xu Li
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China
| | - Xiaomin Peng
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China
| | - Yao Wang
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China
| | - Huijun Wang
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China.
| | - Wenhao Zhou
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wanyuan Road, Shanghai, 201102, China.
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Key Laboratory of Neonatal Diseases, Ministry of Health, Shanghai, 201102, China.
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11
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Valaparambil KA, Fasaludeen A, Priya L, Menon RN, Menon R, Sundaram S. Clinical Utility of Proband Only Clinical Exome Sequencing in Neurodevelopmental Disorders. Indian J Pediatr 2023:10.1007/s12098-023-04916-y. [PMID: 37943464 DOI: 10.1007/s12098-023-04916-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 10/23/2023] [Indexed: 11/10/2023]
Abstract
Chromosomal microarray is recommended as the first line of investigation in neurodevelopmental disorders (NDDs). However, advances in next-generation sequencing have unraveled more than 900 genes associated with NDDs, thus improving the genetic diagnosis. Therefore, this study was conducted to explore the utility of clinical exome sequencing (CES) in NDDs from a tertiary care centre in India. A retrospective observational analysis of 78 children with NDDs for whom CES was performed between 2017 and 2021 was conducted. The American College of Medical Genetics and Genomics (ACMG) criteria were used to classify the variants. The mean age was 5.8 ± 3.6 y, and 42 (53%) were male. Pathogenic, likely pathogenic, and variants of uncertain significance (VUS) were observed in 22 (28.2%), 10 (12.8%), and 26 (33.3%) patients, respectively, which included five copy number variants. The diagnostic yield for pathogenic and likely pathogenic variants in NDDs by CES was 41%, which was reasonably high.
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Affiliation(s)
- Karthika Ajit Valaparambil
- Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, 695011, Kerala, India
| | - Alfiya Fasaludeen
- Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, 695011, Kerala, India
| | - Lakshmi Priya
- Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, 695011, Kerala, India
| | - Ramshekhar N Menon
- Pediatric Neurology and Neurodevelopmental Disorders, Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, 695011, Kerala, India
| | - Ramesh Menon
- Department of Bioinformatics, MedGenome Labs, Bangalore, India
| | - Soumya Sundaram
- Pediatric Neurology and Neurodevelopmental Disorders, Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, 695011, Kerala, India.
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12
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Huang Z, Shen Q, Wu B, Wang H, Dong X, Lu Y, Cheng G, Wang L, Lu W, Chen L, Kang W, Li L, Pan X, Wei Q, Zhuang D, Chen D, Yin Z, Yang L, Ni Q, Liu R, Li G, Zhang P, Qian Y, Peng X, Wang Y, Cao Y, Xu H, Hu L, Yang L, Zhou W. Genetic Spectrum of Congenital Anomalies of the Kidney and Urinary Tract in Chinese Newborn Genome Project. Kidney Int Rep 2023; 8:2376-2384. [PMID: 38025242 PMCID: PMC10658258 DOI: 10.1016/j.ekir.2023.08.005] [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: 07/21/2023] [Accepted: 08/07/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Congenital anomalies of the kidney and urinary tract (CAKUT) corresponds to a spectrum of defects. Several large-cohort studies have used high-throughput sequencing to investigate the genetic risk of CAKUT during antenatal, childhood, and adulthood period. However, our knowledge of newborns with CAKUT is limited. Methods This multicenter retrospective cohort study explored the genetic spectrum of CAKUT in a Chinese neonatal cohort. Clinical data and whole exome sequencing (WES) data of 330 newborns clinically diagnosed with CAKUT were collected. WES data were analyzed for putative deleterious single nucleotide variants (SNVs) and potential disease-associated copy number variants (CNVs). Results In this study, pathogenic variants were identified in 61 newborns (18.5%, 61/330), including 35 patients (57.4%) with SNVs, 25 patients (41%) with CNVs, and 1 patient with both an SNV and a CNV. Genetic diagnosis rates were significantly higher in patients with extrarenal manifestations (P<0.001), especially in those with cardiovascular malformations (P<0.05). SNVs in genes related to syndromic disorders (CAKUT with extrarenal manifestations) were common, affecting 20 patients (57.1%, 20/35). KMT2D was the most common gene (5 patients) and 17q12 deletion was the most common CNV (4 patients). Patient 110 was detected with both a CNV (17q12 deletion) and an SNV (a homozygous variant of SLC25A13). Among the newborns with positive genetic results, 22 (36.1%, 22/61) patients may benefit from a molecular diagnosis and change in clinical management (including early multidisciplinary treatment, disease-specific follow-up, and familial genetic counseling). Conclusion This study shows the heterogeneous genetic etiologies in a Chinese CAKUT neonatal cohort by using WES. Patients with CAKUT who have extrarenal manifestations are more likely to harbor genetic diagnoses. Kabuki syndrome and 17q12 deletion syndrome were the most common genetic findings. Approximately 36.1% of the patients may benefit from molecular diagnoses and a change in clinical management.
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Affiliation(s)
- Zhelan Huang
- Center for Molecular Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Qian Shen
- Department of Nephrology, Children’s Hospital of Fudan University, Shanghai, China
| | - Bingbing Wu
- Center for Molecular Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Huijun Wang
- Center for Molecular Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Xinran Dong
- Center for Molecular Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Yulan Lu
- Center for Molecular Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Guoqiang Cheng
- Division of Neonatology, Children’s Hospital of Fudan University, Shanghai, China
| | - Laishuan Wang
- Division of Neonatology, Children’s Hospital of Fudan University, Shanghai, China
- Key Laboratory of Birth Defects, Children’s Hospital of Fudan University, Shanghai, China
| | - Wei Lu
- Department of Endocrinology and Inherited Metabolic Diseases, Children’s Hospital of Fudan University, Shanghai, China
| | - Liping Chen
- Jiangxi Provincial Children’s Hospital, Nanchang, China
| | - Wenqing Kang
- Children’s Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Long Li
- Department of Neonatology, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Xinnian Pan
- Maternal and Child Health Care Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Qiufen Wei
- Maternal and Child Health Care Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | | | - Dongmei Chen
- Quanzhou Women and Children’s Hospital, Quanzhou, China
| | | | - Ling Yang
- Hainan Women and Children’s Medical Center, Haikou, China
| | - Qi Ni
- Center for Molecular Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Renchao Liu
- Center for Molecular Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Gang Li
- Center for Molecular Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Ping Zhang
- Center for Molecular Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Yanyan Qian
- Center for Molecular Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Xiaomin Peng
- Center for Molecular Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Yao Wang
- Center for Molecular Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Yun Cao
- Division of Neonatology, Children’s Hospital of Fudan University, Shanghai, China
- Key Laboratory of Birth Defects, Children’s Hospital of Fudan University, Shanghai, China
| | - Hong Xu
- Department of Nephrology, Children’s Hospital of Fudan University, Shanghai, China
| | - Liyuan Hu
- Division of Neonatology, Children’s Hospital of Fudan University, Shanghai, China
- Key Laboratory of Birth Defects, Children’s Hospital of Fudan University, Shanghai, China
| | - Lin Yang
- Department of Endocrinology and Inherited Metabolic Diseases, Children’s Hospital of Fudan University, Shanghai, China
| | - Wenhao Zhou
- Center for Molecular Medicine, Children’s Hospital of Fudan University, Shanghai, China
- Division of Neonatology, Children’s Hospital of Fudan University, Shanghai, China
- Key Laboratory of Birth Defects, Children’s Hospital of Fudan University, Shanghai, China
- Xiamen Children’s Hospital, Xiamen, China
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13
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Gui J, Wang L, Han Z, Ding R, Yang X, Yang J, Luo H, Huang D, Liu J, Jiang L. Association between the Healthy Eating Index-2015 and Developmental Disabilities in Children: A Cross-Sectional Analysis. Brain Sci 2023; 13:1353. [PMID: 37759954 PMCID: PMC10526872 DOI: 10.3390/brainsci13091353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/31/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023] Open
Abstract
Few studies have examined the association between dietary quality and the risk of developmental disabilities (DDs). This study aimed to investigate the association between dietary quality and the risk of DDs in US children aged 5 to 15. We employed data from the National Health and Nutrition Examination Survey (NHANES) 2003-2018. Multivariable logistic regression was used to evaluate the association between HEI-2015 score, HEI component score, and the likelihood of DDs. Restricted cubic splines (RCS) were utilized to investigate nonlinear links between HEI-2015 score and the likelihood of DDs. Interaction analysis was utilized to explore differences between subgroups. HEI-2015 score was negatively linked with the risk of DDs after adjusting covariates [odds ratio (OR) = 0.99; 95% confidence interval (CI) = (0.98, 1.00)]. HEI-2015 score was separated by quartile into Q1, Q2, Q3, and Q4. Q1 represents the lowest HEI scores, while Q4 represents the highest HEI scores. Children in the fourth quartile of the HEI-2015 exhibited a decreased prevalence of DDs compared to those in the first quartile [(OR = 0.69; 95% CI = (0.53, 0.89)]. The association between HEI-2015 score and the risk of DDs was modified by race/ethnicity. The higher HEI-2015 score was associated with a lower risk of DDs, suggesting that better dietary quality may reduce the risk of DDs in children.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Li Jiang
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Department of Neurology, Children’s Hospital of Chongqing Medical University, Chongqing 400014, China (J.Y.); (H.L.)
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14
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Chung CCY, Hue SPY, Ng NYT, Doong PHL, Chu ATW, Chung BHY. Meta-analysis of the diagnostic and clinical utility of exome and genome sequencing in pediatric and adult patients with rare diseases across diverse populations. Genet Med 2023; 25:100896. [PMID: 37191093 DOI: 10.1016/j.gim.2023.100896] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 05/07/2023] [Accepted: 05/10/2023] [Indexed: 05/17/2023] Open
Abstract
PURPOSE This meta-analysis aims to compare the diagnostic and clinical utility of exome sequencing (ES) vs genome sequencing (GS) in pediatric and adult patients with rare diseases across diverse populations. METHODS A meta-analysis was conducted to identify studies from 2011 to 2021. RESULTS One hundred sixty-one studies across 31 countries/regions were eligible, featuring 50,417 probands of diverse populations. Diagnostic rates of ES (0.38, 95% CI 0.36-0.40) and GS (0.34, 95% CI 0.30-0.38) were similar (P = .1). Within-cohort comparison illustrated 1.2-times odds of diagnosis by GS over ES (95% CI 0.79-1.83, P = .38). GS studies discovered a higher range of novel genes than ES studies; yet, the rate of variant of unknown significance did not differ (P = .78). Among high-quality studies, clinical utility of GS (0.77, 95% CI 0.64-0.90) was higher than that of ES (0.44, 95% CI 0.30-0.58) (P < .01). CONCLUSION This meta-analysis provides an important update to demonstrate the similar diagnostic rates between ES and GS and the higher clinical utility of GS over ES. With the newly published recommendations for clinical interpretation of variants found in noncoding regions of the genome and the trend of decreasing variant of unknown significance and GS cost, it is expected that GS will be more widely used in clinical settings.
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Affiliation(s)
| | - Shirley P Y Hue
- Hong Kong Genome Institute, Hong Kong Special Administrative Region
| | - Nicole Y T Ng
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Phoenix H L Doong
- Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Annie T W Chu
- Hong Kong Genome Institute, Hong Kong Special Administrative Region.
| | - Brian H Y Chung
- Hong Kong Genome Institute, Hong Kong Special Administrative Region; Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region.
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15
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Puri D, Barry BJ, Engle EC. TUBB3 and KIF21A in neurodevelopment and disease. Front Neurosci 2023; 17:1226181. [PMID: 37600020 PMCID: PMC10436312 DOI: 10.3389/fnins.2023.1226181] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 07/17/2023] [Indexed: 08/22/2023] Open
Abstract
Neuronal migration and axon growth and guidance require precise control of microtubule dynamics and microtubule-based cargo transport. TUBB3 encodes the neuronal-specific β-tubulin isotype III, TUBB3, a component of neuronal microtubules expressed throughout the life of central and peripheral neurons. Human pathogenic TUBB3 missense variants result in altered TUBB3 function and cause errors either in the growth and guidance of cranial and, to a lesser extent, central axons, or in cortical neuronal migration and organization, and rarely in both. Moreover, human pathogenic missense variants in KIF21A, which encodes an anterograde kinesin motor protein that interacts directly with microtubules, alter KIF21A function and cause errors in cranial axon growth and guidance that can phenocopy TUBB3 variants. Here, we review reported TUBB3 and KIF21A variants, resulting phenotypes, and corresponding functional studies of both wildtype and mutant proteins. We summarize the evidence that, in vitro and in mouse models, loss-of-function and missense variants can alter microtubule dynamics and microtubule-kinesin interactions. Lastly, we highlight additional studies that might contribute to our understanding of the relationship between specific tubulin isotypes and specific kinesin motor proteins in health and disease.
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Affiliation(s)
- Dharmendra Puri
- Department of Neurology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
- F. M. Kirby Neurobiology Center, Boston Children’s Hospital, Boston, MA, United States
- Howard Hughes Medical Institute, Chevy Chase, MD, United States
| | - Brenda J. Barry
- Department of Neurology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
- F. M. Kirby Neurobiology Center, Boston Children’s Hospital, Boston, MA, United States
- Howard Hughes Medical Institute, Chevy Chase, MD, United States
| | - Elizabeth C. Engle
- Department of Neurology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
- F. M. Kirby Neurobiology Center, Boston Children’s Hospital, Boston, MA, United States
- Howard Hughes Medical Institute, Chevy Chase, MD, United States
- Department of Ophthalmology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
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16
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Rosli AA, Azlan A, Rajasegaran Y, Mot YY, Heidenreich O, Yusoff NM, Moses EJ. Cytogenetics analysis as the central point of genetic testing in acute myeloid leukemia (AML): a laboratory perspective for clinical applications. Clin Exp Med 2023; 23:1137-1159. [PMID: 36229751 DOI: 10.1007/s10238-022-00913-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 10/02/2022] [Indexed: 11/27/2022]
Abstract
Chromosomal abnormalities in acute myeloid leukemia (AML) have significantly contributed to scientific understanding of its molecular pathogenesis, which has aided in the development of therapeutic strategies and enhanced management of AML patients. The diagnosis, prognosis and treatment of AML have also rapidly transformed in recent years, improving initial response to treatment, remission rates, risk stratification and overall survival. Hundreds of rare chromosomal abnormalities in AML have been discovered thus far using chromosomal analysis and next-generation sequencing. As a result, the World Health Organization (WHO) has categorized AML into subgroups based on genetic, genomic and molecular characteristics, to complement the existing French-American classification which is solely based on morphology. In this review, we aim to highlight the most clinically relevant chromosomal aberrations in AML together with the technologies employed to detect these aberrations in laboratory settings.
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Affiliation(s)
- Aliaa Arina Rosli
- Department of Biomedical Science, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Pulau Pinang, Malaysia
| | - Adam Azlan
- Department of Biomedical Science, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Pulau Pinang, Malaysia
| | - Yaashini Rajasegaran
- Department of Biomedical Science, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Pulau Pinang, Malaysia
| | - Yee Yik Mot
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Pulau Pinang, Malaysia
| | - Olaf Heidenreich
- Prinses Máxima Centrum Voor Kinderoncologie, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands
| | - Narazah Mohd Yusoff
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Pulau Pinang, Malaysia
| | - Emmanuel Jairaj Moses
- Department of Biomedical Science, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Pulau Pinang, Malaysia.
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17
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Huang Z, Lu W, Zhang P, Lu Y, Chen L, Kang W, Yang L, Li G, Zhu J, Wu B, Zhou W, Wang H. Early onset critically ill infants with Schaaf-Yang syndrome: a retrospective study from the China neonatal genomes project and literature review. ANNALS OF TRANSLATIONAL MEDICINE 2023; 11:312. [PMID: 37404980 PMCID: PMC10316094 DOI: 10.21037/atm-22-4396] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 02/19/2023] [Indexed: 07/06/2023]
Abstract
Background Schaaf-Yang syndrome (SYS) is a recently identified rare neurodevelopmental disorder characterized by neonatal hypotonia, feeding difficulty, joint contractures, autism spectrum disorder and development delay/intellectual disability. It is mainly caused by truncating variants in maternally imprinted gene MAGEL2 within the Prader-Willi syndrome critical region 15q11-q13. Clinical diagnosis of SYS is difficult for clinicians due to its rarity and highly variable phenotypes, while unique inheritance patterns also complicate genetic diagnosis. To date, no published papers have analyzed the clinical consequences and molecular changes in Chinese patients. Methods In this study, we retrospectively investigated the mutation spectrums and phenotypic features of 12 SYS infants. The data were from a cohort of critically ill infants from the China neonatal genomes project (CNGP), sponsored by Children's Hospital of Fudan University. We also reviewed relevant literature. Results Six previously reported mutations and six novel pathogenic variations of MAGEL2 were identified in 12 unrelated infants. Neonatal respiratory problems were the major complaint for hospitalization, which occurred in 91.7% (11/12) cases. All babies displayed feeding difficulties and a poor suck postnatally, and neonatal dystonia was present in 11 of the cases; joint contractures and multiple congenital defects were also observed. Interestingly, we found that 42.5% (57/134) of the reported SYS patients, including ours carried variants in the c.1996 site, particularly the c.1996dupC variant. The mortality rate was 17.2% (23/134), with the median age of death between 24 gestational weeks in fetuses and 1-month-old in infants. Respiratory failure was the leading cause of death in live-born patients (58.8%, 10/17), especially during the neonatal period. Conclusions Our findings expanded the genotype and phenotype spectrum of neonatal SYS patients. The results demonstrated that respiratory dysfunction was a typical characteristic among Chinese SYS neonates that should attract physicians' attention. The early identification of such disorders allows early intervention and can further provide genetic counseling as well as reproductive options for the affected families.
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Affiliation(s)
- Zhongwen Huang
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Wei Lu
- Department of Endocrinology and Inherited Metabolic Diseases1, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Ping Zhang
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Yulan Lu
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Liping Chen
- Department of Neonatology, Jiangxi Provincial Children’s Hospital, Nanchang, China
| | - Wenqing Kang
- Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Lin Yang
- Department of Endocrinology and Inherited Metabolic Diseases1, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Gang Li
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Jitao Zhu
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Bingbing Wu
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Wenhao Zhou
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
- Division of Neonatology, Children’s Hospital of Fudan University, National Children’s Medical Center, Key Laboratory of Neonatal Diseases, Ministry of Health, Shanghai, China
| | - Huijun Wang
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
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18
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Guo Y, Jiang J, Xu Z. Chinese genetic variation database of inborn errors of metabolism: a systematic review of published variants in 13 genes. Orphanet J Rare Dis 2023; 18:148. [PMID: 37308883 DOI: 10.1186/s13023-023-02726-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 05/14/2023] [Indexed: 06/14/2023] Open
Abstract
BACKGROUND Population-specific variation database of inborn errors of metabolism (IEMs) is essential for precise genetic diagnosis and disease prevention. Here we presented a systematic review of clinically relevant variants of 13 IEMs genes reported among Chinese patients. METHODS A systematic search of the following electronic databases for 13 IEMs genes was conducted: PubMed-NCBI, China national knowledge infrastructure and Wanfang databases. Patient data was extracted from articles eligible for inclusion and recorded in Excel electronic form using a case-by-case approach. RESULTS A total of 218 articles, 93 published in English and 125 in Chinese, were retrieved. After variant annotation and deduplication, 575 unique patients (241 from articles published in Chinese) were included in the population-specific variation database. Patients identified by newborn screening and symptomatic presentation were 231 (40.17%) and 344 (59.83%), respectively. Biallelic variants were observed in 525/575 (91.3%). Among the 581 unique variants identified, 83 (14.28%) were described ≥ 3 times and 97 (16.69%) were not recorded in Clinvar or HGMD. Four variants were reclassified as benign and dozens of confusing variants deserved further research. CONCLUSION This review provides a unique resource of the well-characterized diseases and causative variants that have accumulated in Chinese population and is a preliminary attempt to build the Chinese genetic variation database of IEMs.
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Affiliation(s)
- Yongchao Guo
- Shenzhen Uni-medica Technology Co., Ltd, Liuxian Culture Park, Nanshan District, 5180553, Shenzhen, China
| | - Jianhui Jiang
- Maternal and Child Health Hospital of Guangdong Province, No.13 Guangyuan West Road, Yuexiu District, 510010, Guangzhou, Guangdong Province, China
| | - Zhongyao Xu
- Shenzhen Uni-medica Technology Co., Ltd, Liuxian Culture Park, Nanshan District, 5180553, Shenzhen, China.
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Yaldiz B, Kucuk E, Hampstead J, Hofste T, Pfundt R, Corominas Galbany J, Rinne T, Yntema HG, Hoischen A, Nelen M, Gilissen C. Twist exome capture allows for lower average sequence coverage in clinical exome sequencing. Hum Genomics 2023; 17:39. [PMID: 37138343 PMCID: PMC10155375 DOI: 10.1186/s40246-023-00485-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/20/2023] [Indexed: 05/05/2023] Open
Abstract
BACKGROUND Exome and genome sequencing are the predominant techniques in the diagnosis and research of genetic disorders. Sufficient, uniform and reproducible/consistent sequence coverage is a main determinant for the sensitivity to detect single-nucleotide (SNVs) and copy number variants (CNVs). Here we compared the ability to obtain comprehensive exome coverage for recent exome capture kits and genome sequencing techniques. RESULTS We compared three different widely used enrichment kits (Agilent SureSelect Human All Exon V5, Agilent SureSelect Human All Exon V7 and Twist Bioscience) as well as short-read and long-read WGS. We show that the Twist exome capture significantly improves complete coverage and coverage uniformity across coding regions compared to other exome capture kits. Twist performance is comparable to that of both short- and long-read whole genome sequencing. Additionally, we show that even at a reduced average coverage of 70× there is only minimal loss in sensitivity for SNV and CNV detection. CONCLUSION We conclude that exome sequencing with Twist represents a significant improvement and could be performed at lower sequence coverage compared to other exome capture techniques.
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Affiliation(s)
- Burcu Yaldiz
- Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Geert Grooteplein 10, 6525 GA, Nijmegen, The Netherlands
| | - Erdi Kucuk
- Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Geert Grooteplein 10, 6525 GA, Nijmegen, The Netherlands
| | - Juliet Hampstead
- Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Geert Grooteplein 10, 6525 GA, Nijmegen, The Netherlands
| | - Tom Hofste
- Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Geert Grooteplein 10, 6525 GA, Nijmegen, The Netherlands
| | - Rolph Pfundt
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Geert Grooteplein 10, 6525 GA, Nijmegen, The Netherlands
| | - Jordi Corominas Galbany
- Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Geert Grooteplein 10, 6525 GA, Nijmegen, The Netherlands
| | - Tuula Rinne
- Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Geert Grooteplein 10, 6525 GA, Nijmegen, The Netherlands
| | - Helger G Yntema
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Geert Grooteplein 10, 6525 GA, Nijmegen, The Netherlands
| | - Alexander Hoischen
- Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Geert Grooteplein 10, 6525 GA, Nijmegen, The Netherlands
| | - Marcel Nelen
- Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Geert Grooteplein 10, 6525 GA, Nijmegen, The Netherlands
| | - Christian Gilissen
- Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Geert Grooteplein 10, 6525 GA, Nijmegen, The Netherlands.
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20
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Denommé-Pichon AS, Matalonga L, de Boer E, Jackson A, Benetti E, Banka S, Bruel AL, Ciolfi A, Clayton-Smith J, Dallapiccola B, Duffourd Y, Ellwanger K, Fallerini C, Gilissen C, Graessner H, Haack TB, Havlovicova M, Hoischen A, Jean-Marçais N, Kleefstra T, López-Martín E, Macek M, Mencarelli MA, Moutton S, Pfundt R, Pizzi S, Posada M, Radio FC, Renieri A, Rooryck C, Ryba L, Safraou H, Schwarz M, Tartaglia M, Thauvin-Robinet C, Thevenon J, Tran Mau-Them F, Trimouille A, Votypka P, de Vries BBA, Willemsen MH, Zurek B, Verloes A, Philippe C, Vitobello A, Vissers LELM, Faivre L. A Solve-RD ClinVar-based reanalysis of 1522 index cases from ERN-ITHACA reveals common pitfalls and misinterpretations in exome sequencing. Genet Med 2023; 25:100018. [PMID: 36681873 DOI: 10.1016/j.gim.2023.100018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 01/12/2023] [Accepted: 01/12/2023] [Indexed: 01/22/2023] Open
Abstract
PURPOSE Within the Solve-RD project (https://solve-rd.eu/), the European Reference Network for Intellectual disability, TeleHealth, Autism and Congenital Anomalies aimed to investigate whether a reanalysis of exomes from unsolved cases based on ClinVar annotations could establish additional diagnoses. We present the results of the "ClinVar low-hanging fruit" reanalysis, reasons for the failure of previous analyses, and lessons learned. METHODS Data from the first 3576 exomes (1522 probands and 2054 relatives) collected from European Reference Network for Intellectual disability, TeleHealth, Autism and Congenital Anomalies was reanalyzed by the Solve-RD consortium by evaluating for the presence of single-nucleotide variant, and small insertions and deletions already reported as (likely) pathogenic in ClinVar. Variants were filtered according to frequency, genotype, and mode of inheritance and reinterpreted. RESULTS We identified causal variants in 59 cases (3.9%), 50 of them also raised by other approaches and 9 leading to new diagnoses, highlighting interpretation challenges: variants in genes not known to be involved in human disease at the time of the first analysis, misleading genotypes, or variants undetected by local pipelines (variants in off-target regions, low quality filters, low allelic balance, or high frequency). CONCLUSION The "ClinVar low-hanging fruit" analysis represents an effective, fast, and easy approach to recover causal variants from exome sequencing data, herewith contributing to the reduction of the diagnostic deadlock.
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Affiliation(s)
- Anne-Sophie Denommé-Pichon
- Functional Unit for Diagnostic Innovation in Rare Diseases, FHU-TRANSLAD, Dijon Bourgogne University Hospital, Dijon, France; INSERM UMR1231 GAD "Génétique des Anomalies du Développement," FHU-TRANSLAD, University of Burgundy, Dijon, France.
| | - Leslie Matalonga
- CNAG-CRG, Centre for Genomic Regulation," The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Elke de Boer
- Department of Human Genetics, Radboudumc, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboudumc, Nijmegen, The Netherlands
| | - Adam Jackson
- Manchester Centre for Genomic Medicine, University of Manchester, Manchester, United Kingdom
| | - Elisa Benetti
- MedBiotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Siddharth Banka
- Manchester Centre for Genomic Medicine, University of Manchester, Manchester, United Kingdom
| | - Ange-Line Bruel
- Functional Unit for Diagnostic Innovation in Rare Diseases, FHU-TRANSLAD, Dijon Bourgogne University Hospital, Dijon, France; INSERM UMR1231 GAD "Génétique des Anomalies du Développement," FHU-TRANSLAD, University of Burgundy, Dijon, France
| | - Andrea Ciolfi
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome, Italy
| | - Jill Clayton-Smith
- Manchester Centre for Genomic Medicine, University of Manchester, Manchester, United Kingdom
| | - Bruno Dallapiccola
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome, Italy
| | - Yannis Duffourd
- Functional Unit for Diagnostic Innovation in Rare Diseases, FHU-TRANSLAD, Dijon Bourgogne University Hospital, Dijon, France; INSERM UMR1231 GAD "Génétique des Anomalies du Développement," FHU-TRANSLAD, University of Burgundy, Dijon, France
| | - Kornelia Ellwanger
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany; Centre for Rare Diseases, University Hospital Tübingen, Tübingen, Germany
| | - Chiara Fallerini
- MedBiotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Siena, Italy; Medical Genetics, University of Siena, Siena, Italy
| | - Christian Gilissen
- Department of Human Genetics, Radboudumc, Nijmegen, The Netherlands; Radboud Institute for Molecular Life Sciences, Radbound University, Nijmegen, The Netherlands
| | - Holm Graessner
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany; Centre for Rare Diseases, University Hospital Tübingen, Tübingen, Germany
| | - Tobias B Haack
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany; Centre for Rare Diseases, University Hospital Tübingen, Tübingen, Germany
| | - Marketa Havlovicova
- Department of Biology and Medical Genetics, Second Faculty of Medicine of Charles University and Motol University Hospital, Prague, Czech Republic
| | - Alexander Hoischen
- Department of Human Genetics, Radboudumc, Nijmegen, The Netherlands; Radboud Institute for Molecular Life Sciences, Radbound University, Nijmegen, The Netherlands; Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboudumc, Nijmegen, The Netherlands
| | - Nolwenn Jean-Marçais
- INSERM UMR1231 GAD "Génétique des Anomalies du Développement," FHU-TRANSLAD, University of Burgundy, Dijon, France; Department of Genetics and Reference Center for Development Disorders and Intellectual Disabilities, FHU-TRANSLAD and GIMI Institute, Dijon Bourgogne University Hospital, Dijon, France
| | - Tjitske Kleefstra
- Department of Human Genetics, Radboudumc, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboudumc, Nijmegen, The Netherlands; Center of Excellence for Neuropsychiatry, Vincent van Gogh Institute for Psychiatry, Venray, The Netherlands
| | - Estrella López-Martín
- Institute of Rare Diseases Research, Spanish Undiagnosed Rare Diseases Cases Program (SpainUDP) & Undiagnosed Diseases Network International, Instituto de Salud Carlos III, Madrid, Spain
| | - Milan Macek
- Department of Biology and Medical Genetics, Second Faculty of Medicine of Charles University and Motol University Hospital, Prague, Czech Republic
| | | | - Sébastien Moutton
- INSERM UMR1231 GAD "Génétique des Anomalies du Développement," FHU-TRANSLAD, University of Burgundy, Dijon, France
| | - Rolph Pfundt
- Department of Human Genetics, Radboudumc, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboudumc, Nijmegen, The Netherlands
| | - Simone Pizzi
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome, Italy
| | - Manuel Posada
- Institute of Rare Diseases Research, Spanish Undiagnosed Rare Diseases Cases Program (SpainUDP) & Undiagnosed Diseases Network International, Instituto de Salud Carlos III, Madrid, Spain
| | | | - Alessandra Renieri
- MedBiotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, Siena, Italy; Medical Genetics, University of Siena, Siena, Italy; Medical Genetics, Azienda Ospedaliero-Universitaria Senese, Siena, Italy
| | - Caroline Rooryck
- MRGM INSERM U1211, University of Bordeaux, Medical Genetics Department, Bordeaux University Hospital, Bordeaux, France
| | - Lukas Ryba
- Department of Biology and Medical Genetics, Second Faculty of Medicine of Charles University and Motol University Hospital, Prague, Czech Republic
| | - Hana Safraou
- Functional Unit for Diagnostic Innovation in Rare Diseases, FHU-TRANSLAD, Dijon Bourgogne University Hospital, Dijon, France; INSERM UMR1231 GAD "Génétique des Anomalies du Développement," FHU-TRANSLAD, University of Burgundy, Dijon, France
| | - Martin Schwarz
- Department of Biology and Medical Genetics, Second Faculty of Medicine of Charles University and Motol University Hospital, Prague, Czech Republic
| | - Marco Tartaglia
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome, Italy
| | - Christel Thauvin-Robinet
- Functional Unit for Diagnostic Innovation in Rare Diseases, FHU-TRANSLAD, Dijon Bourgogne University Hospital, Dijon, France; INSERM UMR1231 GAD "Génétique des Anomalies du Développement," FHU-TRANSLAD, University of Burgundy, Dijon, France; Department of Genetics and Reference Center for Development Disorders and Intellectual Disabilities, FHU-TRANSLAD and GIMI Institute, Dijon Bourgogne University Hospital, Dijon, France
| | - Julien Thevenon
- INSERM UMR1231 GAD "Génétique des Anomalies du Développement," FHU-TRANSLAD, University of Burgundy, Dijon, France
| | - Frédéric Tran Mau-Them
- Functional Unit for Diagnostic Innovation in Rare Diseases, FHU-TRANSLAD, Dijon Bourgogne University Hospital, Dijon, France; INSERM UMR1231 GAD "Génétique des Anomalies du Développement," FHU-TRANSLAD, University of Burgundy, Dijon, France
| | - Aurélien Trimouille
- Molecular Genetics Laboratory, Medical Genetics Department, Bordeaux University Hospital - Hôpital Pellegrin, Bordeaux, France
| | - Pavel Votypka
- Department of Biology and Medical Genetics, Second Faculty of Medicine of Charles University and Motol University Hospital, Prague, Czech Republic
| | - Bert B A de Vries
- Department of Human Genetics, Radboudumc, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboudumc, Nijmegen, The Netherlands
| | - Marjolein H Willemsen
- Department of Human Genetics, Radboudumc, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboudumc, Nijmegen, The Netherlands
| | - Birte Zurek
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany; Centre for Rare Diseases, University Hospital Tübingen, Tübingen, Germany
| | - Alain Verloes
- Department of Genetics, Assistance Publique-Hôpitaux de Paris - Université de Paris, Paris, France; INSERM UMR 1141 "NeuroDiderot," Hôpital Robert Debré, Paris, France
| | - Christophe Philippe
- Functional Unit for Diagnostic Innovation in Rare Diseases, FHU-TRANSLAD, Dijon Bourgogne University Hospital, Dijon, France; INSERM UMR1231 GAD "Génétique des Anomalies du Développement," FHU-TRANSLAD, University of Burgundy, Dijon, France
| | - Antonio Vitobello
- Functional Unit for Diagnostic Innovation in Rare Diseases, FHU-TRANSLAD, Dijon Bourgogne University Hospital, Dijon, France; INSERM UMR1231 GAD "Génétique des Anomalies du Développement," FHU-TRANSLAD, University of Burgundy, Dijon, France
| | - Lisenka E L M Vissers
- Department of Human Genetics, Radboudumc, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboudumc, Nijmegen, The Netherlands
| | - Laurence Faivre
- INSERM UMR1231 GAD "Génétique des Anomalies du Développement," FHU-TRANSLAD, University of Burgundy, Dijon, France; Department of Genetics and Reference Center for Development Disorders and Intellectual Disabilities, FHU-TRANSLAD and GIMI Institute, Dijon Bourgogne University Hospital, Dijon, France.
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21
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Wang H, Xiao F, Qian Y, Wu B, Dong X, Lu Y, Cheng G, Wang L, Yan K, Yang L, Chen L, Kang W, Li L, Pan X, Wei Q, Zhuang D, Chen D, Yin Z, Yang L, Ni Q, Liu R, Li G, Zhang P, Li X, Peng X, Wang Y, Chen H, Ma X, Liu F, Cao Y, Huang G, Zhou W. Genetic architecture in neonatal intensive care unit patients with congenital heart defects: a retrospective study from the China Neonatal Genomes Project. J Med Genet 2023; 60:247-253. [PMID: 35595280 DOI: 10.1136/jmedgenet-2021-108354] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 05/02/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Congenital heart defects (CHDs) are the most common type of birth defects. The genetic aetiology of CHD is complex and incompletely understood. The overall distribution of genetic causes in patients with CHD from neonatal intensive care units (NICUs) needs to be studied. METHODS CHD cases were extracted from the China Neonatal Genomes Project (2016-2021). Next-generation sequencing results and medical records were retrospectively evaluated to note the frequency of genetic diagnosis and the respective patient outcomes. RESULTS In total, 1795 patients were included. The human phenotype ontology term of atrial septal defect, patent ductus arteriosus and ventricular septal defect account for a large portion of the CHD subtype. Co-occurring extracardiac anomalies were observed in 35.1% of patients. 269 of the cases received genetic diagnoses that could explain the phenotype of CHDs, including 172 copy number variations and 97 pathogenic variants. The detection rate of trio-whole-exome sequencing was higher than clinical exome sequencing (21.8% vs 14.5%, p<0.05). Further follow-up analysis showed the genetic diagnostic rate was higher in the deceased group than in the surviving group (29.0% vs 11.9%, p<0.05). CONCLUSION This is the largest cohort study to explore the genetic spectrum of patients with CHD in the NICU in China. Our findings may benefit future work on improving genetic screening and counselling for NICU patients with CHD.
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Affiliation(s)
- Huijun Wang
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Feifan Xiao
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Yanyan Qian
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Bingbing Wu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Xinran Dong
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Yulan Lu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Guoqiang Cheng
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Laishuan Wang
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Kai Yan
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Lin Yang
- Department of Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Liping Chen
- Department of Neonatology, Jiangxi Provincial Children's Hospital, Nanchang, Jiangxi, China
| | - Wenqing Kang
- Department of Neonatology, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
| | - Long Li
- Department of Neonatology, The People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China
| | - Xinnian Pan
- Department of Neonatology, Maternal and Child Health Care Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
| | - Qiufen Wei
- Department of Neonatology, Maternal and Child Health Care Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
| | - Deyi Zhuang
- Department of Pediatrics, Xiamen Children's Hospital, Xiamen, Fujian, China
| | - Dongmei Chen
- Department of Neonatal Intensive Care Unit, Quanzhou Women's and Children's Hospital, Quanzhou, Fujian, China
| | - Zhaoqing Yin
- Department of Neonatology, The People's Hospital of Dehong, Dehong, Yunnan, China
| | - Ling Yang
- Department of Neonatology, Hainan Women and Children's Medical Center, Haikou, Hainan, China
| | - Qi Ni
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Renchao Liu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Gang Li
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Ping Zhang
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Xu Li
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Xiaomin Peng
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Yao Wang
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Huiyao Chen
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Xiaojing Ma
- Cardiovascular Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Fang Liu
- Cardiovascular Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Yun Cao
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Guoying Huang
- Cardiovascular Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China .,Shanghai Key Laboratory of Birth Defects, Shanghai, China
| | - Wenhao Zhou
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China .,Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Shanghai Key Laboratory of Birth Defects, Shanghai, China
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22
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Carter MT, Srour M, Au PYB, Buhas D, Dyack S, Eaton A, Inbar-Feigenberg M, Howley H, Kawamura A, Lewis SME, McCready E, Nelson TN, Vallance H. Genetic and metabolic investigations for neurodevelopmental disorders: position statement of the Canadian College of Medical Geneticists (CCMG). J Med Genet 2023; 60:523-532. [PMID: 36822643 DOI: 10.1136/jmg-2022-108962] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/27/2023] [Indexed: 02/25/2023]
Abstract
PURPOSE AND SCOPE The aim of this position statement is to provide recommendations for clinicians regarding the use of genetic and metabolic investigations for patients with neurodevelopmental disorders (NDDs), specifically, patients with global developmental delay (GDD), intellectual disability (ID) and/or autism spectrum disorder (ASD). This document also provides guidance for primary care and non-genetics specialists caring for these patients while awaiting consultation with a clinical geneticist or metabolic specialist. METHODS OF STATEMENT DEVELOPMENT A multidisciplinary group reviewed existing literature and guidelines on the use of genetic and metabolic investigations for the diagnosis of NDDs and synthesised the evidence to make recommendations relevant to the Canadian context. The statement was circulated for comment to the Canadian College of Medical Geneticists (CCMG) membership-at-large and to the Canadian Pediatric Society (Mental Health and Developmental Disabilities Committee); following incorporation of feedback, it was approved by the CCMG Board of Directors on 1 September 2022. RESULTS AND CONCLUSIONS Chromosomal microarray is recommended as a first-tier test for patients with GDD, ID or ASD. Fragile X testing should also be done as a first-tier test when there are suggestive clinical features or family history. Metabolic investigations should be done if there are clinical features suggestive of an inherited metabolic disease, while the patient awaits consultation with a metabolic physician. Exome sequencing or a comprehensive gene panel is recommended as a second-tier test for patients with GDD or ID. Genetic testing is not recommended for patients with NDDs in the absence of GDD, ID or ASD, unless accompanied by clinical features suggestive of a syndromic aetiology or inherited metabolic disease.
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Affiliation(s)
| | - Myriam Srour
- Division of Neurology, McGill University Health Centre, Montreal, Québec, Canada
- Department of Pediatrics, McGill University, Montréal, QC, Canada
| | - Ping-Yee Billie Au
- Department of Medical Genetics, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Daniela Buhas
- Division of Medical Genetics, Department of Specialized Medicine, McGill University Health Centre, McGill University, Montreal, Québec, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Sarah Dyack
- Division of Medical Genetics, IWK Health Centre, Halifax, Nova Scotia, Canada
- Department of Pediatrics, Dalhousie University, Halifax, NS, Canada
| | - Alison Eaton
- Department of Medical Genetics, Stollery Children's Hospital, Edmonton, Alberta, Canada
- Department of Medical Genetics, University of Alberta, Edmonton, AB, Canada
| | - Michal Inbar-Feigenberg
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Heather Howley
- Office of Research Services, CHEO Research Institute, Ottawa, Ontario, Canada
| | - Anne Kawamura
- Division of Developmental Pediatrics, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Ontario, Canada
- Department of Paediatrics, University of Toronto, Toronto, ON, Canada
- Mental Health and Developmental Disability Committee, Canadian Pediatric Society, Ottawa, ON, Canada
- Canadian Paediatric Society, Toronto, Ontario, Canada
| | - Suzanne M E Lewis
- Department of Medical Genetics, BC Children's and Women's Hospital, Vancouver, British Columbia, Canada
| | - Elizabeth McCready
- Department of Pathology and Molecular Medicine, McMaster University, McMaster University, Hamilton, ON, Canada, Hamilton, Ontario, Canada
- Hamilton Regional Laboratory Medicine Program, Hamilton Health Sciences Centre, Hamilton, ON, Canada
| | - Tanya N Nelson
- Department of Pathology and Laboratory Medicine, BC Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hilary Vallance
- Department of Pathology and Laboratory Medicine, BC Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
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23
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Lumaka A, Fasquelle C, Debray FG, Alkan S, Jacquinet A, Harvengt J, Boemer F, Mulder A, Vaessen S, Viellevoye R, Palmeira L, Charloteaux B, Brysse A, Bulk S, Rigo V, Bours V. Rapid Whole Genome Sequencing Diagnoses and Guides Treatment in Critically Ill Children in Belgium in Less than 40 Hours. Int J Mol Sci 2023; 24:4003. [PMID: 36835410 PMCID: PMC9967120 DOI: 10.3390/ijms24044003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/05/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
Rapid Whole Genome Sequencing (rWGS) represents a valuable exploration in critically ill pediatric patients. Early diagnosis allows care to be adjusted. We evaluated the feasibility, turnaround time (TAT), yield, and utility of rWGS in Belgium. Twenty-one unrelated critically ill patients were recruited from the neonatal intensive care units, the pediatric intensive care unit, and the neuropediatric unit, and offered rWGS as a first tier test. Libraries were prepared in the laboratory of human genetics of the University of Liège using Illumina DNA PCR-free protocol. Sequencing was performed on a NovaSeq 6000 in trio for 19 and in duo for two probands. The TAT was calculated from the sample reception to the validation of results. Clinical utility data were provided by treating physicians. A definite diagnosis was reached in twelve (57.5%) patients in 39.80 h on average (range: 37.05-43.7). An unsuspected diagnosis was identified in seven patients. rWGS guided care adjustments in diagnosed patients, including a gene therapy, an off-label drug trial and two condition-specific treatments. We successfully implemented the fastest rWGS platform in Europe and obtained one of the highest rWGS yields. This study establishes the path for a nationwide semi-centered rWGS network in Belgium.
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Affiliation(s)
- Aimé Lumaka
- Human Genetic Laboratory, GIGA Institute, University of Liège, 4000 Liège, Belgium
- Center for Human Genetics, Centre Hospitalier Universitaire, 4032 Liège, Belgium
| | - Corinne Fasquelle
- Center for Human Genetics, Centre Hospitalier Universitaire, 4032 Liège, Belgium
| | | | - Serpil Alkan
- Center for Human Genetics, Centre Hospitalier Universitaire, 4032 Liège, Belgium
- Neuropediatric Division, CHU de Liège—CHR de la Citadelle, University of Liège, 4000 Liège, Belgium
| | - Adeline Jacquinet
- Center for Human Genetics, Centre Hospitalier Universitaire, 4032 Liège, Belgium
| | - Julie Harvengt
- Center for Human Genetics, Centre Hospitalier Universitaire, 4032 Liège, Belgium
| | - François Boemer
- Center for Human Genetics, Centre Hospitalier Universitaire, 4032 Liège, Belgium
| | - André Mulder
- Department of Pediatrics, Division of Pediatric Critical Care Medicine, CHC Mont-Légia, 4000 Liège, Belgium
| | - Sandrine Vaessen
- Neuropediatric Division, CHU de Liège—CHR de la Citadelle, University of Liège, 4000 Liège, Belgium
| | - Renaud Viellevoye
- Neonatology Division, CHU de Liège—CHR de la Citadelle, University of Liège, 4000 Liège, Belgium
| | - Leonor Palmeira
- Center for Human Genetics, Centre Hospitalier Universitaire, 4032 Liège, Belgium
| | - Benoit Charloteaux
- Center for Human Genetics, Centre Hospitalier Universitaire, 4032 Liège, Belgium
| | - Anne Brysse
- Center for Human Genetics, Centre Hospitalier Universitaire, 4032 Liège, Belgium
| | - Saskia Bulk
- Center for Human Genetics, Centre Hospitalier Universitaire, 4032 Liège, Belgium
| | - Vincent Rigo
- Neonatology Division, CHU de Liège—CHR de la Citadelle, University of Liège, 4000 Liège, Belgium
| | - Vincent Bours
- Human Genetic Laboratory, GIGA Institute, University of Liège, 4000 Liège, Belgium
- Center for Human Genetics, Centre Hospitalier Universitaire, 4032 Liège, Belgium
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24
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Lin XM, Li DZ. Prenatal genetic evaluation of fetuses with structural anomaly: is it time to shift from microarray to exome sequencing as a first-tier test? ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2023; 61:119-120. [PMID: 36594735 DOI: 10.1002/uog.26120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 08/24/2022] [Indexed: 05/27/2023]
Affiliation(s)
- X-M Lin
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - D-Z Li
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
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25
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Yaron Y, Krajden Haratz K. Reply. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2023; 61:120-121. [PMID: 36594736 DOI: 10.1002/uog.26122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/12/2022] [Indexed: 05/27/2023]
Affiliation(s)
- Y Yaron
- Prenatal Genetic Diagnosis Unit, Genetics Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - K Krajden Haratz
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Division of Obstetric Ultrasound, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
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26
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The exploration of genetic aetiology and diagnostic strategy for 321 Chinese individuals with intellectual disability. Clin Chim Acta 2023; 538:94-103. [PMID: 36368352 DOI: 10.1016/j.cca.2022.10.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/08/2022] [Accepted: 10/28/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND Intellectual disability is a heterogeneous neurodevelopmental disorder with complex genetic architectures. Different sequential methodologies are usually applied to identify the genetic aetiologies of ID patients. METHODS We collected 321 consecutive ID patients. All patients underwent karyotyping, while 293 and 164 cases further received copy number variation sequencing (CNV-seq) and whole-exome sequencing (WES). The updated WES technology can detect CNVs simultaneously. The diagnostic data from 137 patients who received WES and CNV-seq were used to define the approach that could be recommended as the first-tier test. RESULTS WES obtains the highest diagnostic yield of 50% (82/164), compared with karyotyping (7.79%, 25/321) and CNV-seq (19.80%, 58/293). Among the variants detected by WES, 66.67% (44/66) de novo and 57.58% (38/66) novel pathogenic/likely pathogenic (P/LP) variants were identified in patients with ID. Besides, 24 out of 25P/LP CNVs discovered by CNV-seq can also be accurately identified using WES in 137 patients who received WES and CNV-seq. Thus, genetic abnormalities found through karyotyping, CNV-seq, and WES can be completely detected by combined karyotyping and WES. CONCLUSIONS This study illustrates the genetic aberrations of a Chinese ID cohort and expands the mutation spectrum of ID-related genes. Compared with the conventional diagnostic strategy, a combination of karyotype analysis and WES could be recommended as the first-tier diagnostic strategy for ID patients.
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27
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Overcoming the Pitfalls of Next-Generation Sequencing-Based Molecular Diagnosis of Shwachman-Diamond Syndrome. J Mol Diagn 2022; 24:1240-1253. [PMID: 36162759 DOI: 10.1016/j.jmoldx.2022.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 07/30/2022] [Accepted: 09/09/2022] [Indexed: 01/13/2023] Open
Abstract
Shwachman-Diamond syndrome (SDS) is the second most common cause of exocrine pancreatic insufficiency, and 90% of patients carry mutations in the SBDS gene, the most common being the c.183_184delinsCT and c.258+2T>C variants. However, precise detection of these most contributory variants by conventional short-read next-generation sequencing data analysis is limited because of the SBDS/SBDSP1 highly homologous sequences. In this study, an efficient approach was established to infer the haplotype of SBDS based on the expectation-maximization algorithm. The workflow was retrospectively applied to detect the two most common SBDS variants in a Chinese SDS high-risk cohort, and a systematic comparison of variant detection results was performed between the workflow and conventional next-generation sequencing analysis based on Sanger sequencing validation. Among the Chinese SDS high-risk cohort (n = 47) and their available parents (n = 64), the established workflow improved the diagnostic rate for these two variants by 27.7% (95% CI, 15.6%-42.6%) compared with conventional analysis. For overall variant detection, the established workflow achieved 100% (95% CI, 92.5%-100%) concordance with Sanger sequencing, whereas conventional analysis showed only 65.8% accuracy; these results included 25.2% with missed variant calls, 7.2% with diagnosed but inaccurate variant calls, and 1.8% with false-positive calls. With its favorable result in both SDS patient diagnosis and carrier detection performance, the provided workflow showed its potential in clinical application for SDS molecular diagnosis.
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28
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Lin XM, Li DZ. Prenatal diagnosis of non-immune hydrops fetalis: whole-exome sequencing or whole-genome sequencing? ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2022; 60:585-586. [PMID: 36183347 DOI: 10.1002/uog.26063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/19/2022] [Indexed: 05/27/2023]
Affiliation(s)
- X-M Lin
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - D-Z Li
- Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
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29
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Chromosomal abnormalities related to fever of unknown origin in a Chinese pediatric cohort and literature review. Orphanet J Rare Dis 2022; 17:292. [PMID: 35897075 PMCID: PMC9327306 DOI: 10.1186/s13023-022-02444-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 07/14/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Fever of unknown origin (FUO) has been difficult to diagnose in pediatric clinical practice. With the gradual change in the disease spectrum, genetic factors have received increasing attention. Limited studies have shown an association between FUO and chromosomal abnormalities. In this study, we investigated the clinical and genetic characteristics of patients with FUO presenting with chromosomal abnormalities in a Chinese pediatric cohort. RESULTS Chromosomal abnormalities were detected in 5.5% (8/145) of the patients with FUO. Six patients with inflammatory fever presented with pharyngitis/amygdalitis (4/6), oral aphthous ulcer (2/6), digestive symptoms (3/6), developmental delay (4/6) and elevated C-reactive protein levels (6/6) during fever. These patients were often considered to have systemic inflammatory diseases, such as Behcet's disease or systemic juvenile idiopathic arthritis. Trisomy 8, 7q11.23 dup, 3p26.3-p26.1 del/17q12 dup, 22q11.21 del, and 6q23.3-q24.1 del were identified in patients with inflammatory fever. The TNFAIP3 gene was included in the 6q23.3-q24.1 deletion fragment. Two patients with central fever were characterized by facial anomalies, developmental delay, seizures and no response to antipyretic drugs and were identified as carrying the de novo 18q22.3-q23 del. By performing a literature review, an additional 19 patients who had FUO and chromosomal abnormalities were identified. Trisomy 8, 6q23.2-q24.3 del and 18q22.3-q23 del were reported to present as fever, similar to the findings of our study. CONCLUSIONS We emphasized the important role of detecting chromosomal abnormalities in patients with FUO, especially in patients with systemic inflammatory manifestations or developmental delay. Identifying chromosomal abnormalities may change the diagnosis and management of patients with FUO.
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30
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Xiao T, Wang J, Wang H, Mei H, Dong X, Lu Y, Cheng G, Wang L, Hu L, Lu W, Ni Q, Li G, Zhang P, Qian Y, Li X, Peng X, Wang Y, Shen C, Chen G, Dou YL, Cao Y, Chen L, Kang W, Li L, Pan X, Wei Q, Zhuang D, Chen DM, Yin Z, Wang J, Yang L, Wu B, Zhou W. Aetiology and outcomes of prolonged neonatal jaundice in tertiary centres: data from the China Neonatal Genome Project. Arch Dis Child Fetal Neonatal Ed 2022; 108:fetalneonatal-2021-323413. [PMID: 35851034 DOI: 10.1136/archdischild-2021-323413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 06/22/2022] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To investigate the distribution of aetiologies and outcomes in neonates with prolonged neonatal jaundice. DESIGN An observational study. SETTING Multiple tertiary centres from the China Neonatal Genome Project. PATIENTS Term infants with jaundice lasting more than 14 days or preterm infants with jaundice lasting more than 21 days were recruited between 1 June 2016 and 30 June 2020. MAIN OUTCOME MEASURES Aetiology and outcomes were recorded from neonates with prolonged unconjugated hyperbilirubinaemia (PUCHB) and prolonged conjugated hyperbilirubinaemia (PCHB). RESULTS A total of 939 neonates were enrolled, and known aetiologies were identified in 84.1% of neonates (790 of 939). Among 411 neonates with PCHB, genetic disorders (27.2%, 112 of 411) were the leading aetiologies. There were 8 deceased neonates, 19 neonates with liver failure and 12 with neurodevelopmental delay. Among 528 neonates with PUCHB, a genetic aetiology was identified in 2 of 219 neonates (0.9%) who showed disappearance of jaundice within 4 weeks of age and in 32 of 309 neonates (10.4%) with persistent jaundice after 4 weeks of age. A total of 96 of 181 neonates (53.0%) who received genetic diagnoses had their clinical diagnosis modified as a result of the genetic diagnoses. CONCLUSION Known aetiologies were identified in approximately 80% of neonates in our cohort, and their overall outcomes were favourable. Genetic aetiology should be considered a priority in neonates with PCHB or the persistence of jaundice after 4 weeks of age. Moreover, genetic data can modify the clinical diagnosis and guide disease management, potentially improving outcomes.
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Affiliation(s)
- Tiantian Xiao
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Jin Wang
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Huijun Wang
- Centre for Molecular Medicine, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Hongfang Mei
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Xinran Dong
- Centre for Molecular Medicine, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Yulan Lu
- Centre for Molecular Medicine, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Guoqiang Cheng
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Laishuan Wang
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Liyuan Hu
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Wei Lu
- Department of Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Qi Ni
- Centre for Molecular Medicine, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Gang Li
- Centre for Molecular Medicine, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Ping Zhang
- Centre for Molecular Medicine, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Yanyan Qian
- Centre for Molecular Medicine, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Xu Li
- Centre for Molecular Medicine, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Xiaomin Peng
- Centre for Molecular Medicine, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Yao Wang
- Centre for Molecular Medicine, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Chun Shen
- Department of Pediatric Surgery, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Gong Chen
- Department of Pediatric Surgery, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Ya-Lan Dou
- Department of Clinical Epidemiology and Clinical Trial Unit, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Yun Cao
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Liping Chen
- Department of Neonatology, Jiangxi Provincial Children's Hospital, Nanchang, China
| | - Wenqing Kang
- Department of Neonatology, Children's Hospital of Zhengzhou University, Zhengzhou, China
| | - Long Li
- Department of Neonatology, People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang, China
| | - Xinnian Pan
- Department of Neonatology, Maternal and Child Health Care Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Qiufen Wei
- Department of Neonatology, Maternal and Child Health Care Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Deyi Zhuang
- Department of Pediatrics, Xiamen Children's Hospital, Xiamen, China
| | - Dong-Mei Chen
- Department of Neonatal Intensive Care Unit, Quanzhou Maternity and Children's Hospital, Quanzhou, China
| | - Zhaoqing Yin
- Department of Neonatology, The People's Hospital of Dehong, Yunnan, China
| | - Jianshe Wang
- The Centre for Pediatric Liver Diseases, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Lin Yang
- Department of Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Bingbing Wu
- Centre for Molecular Medicine, Children's Hospital of Fudan University,National Children's Medical Center, Shanghai, China
| | - Wenhao Zhou
- Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
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Coursimault J, Goldenberg A, Nicolas G, Saugier-Veber P, Coutant S, Vincent A, Pouliquen D, Feltin C, Aref-Eshghi E, Sadikovic B, Lecoquierre F. Contribution of DNA methylation profiling to the reclassification of a variant of uncertain significance in the KDM5C gene. Eur J Med Genet 2022; 65:104556. [PMID: 35781022 DOI: 10.1016/j.ejmg.2022.104556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/21/2022] [Accepted: 06/27/2022] [Indexed: 11/03/2022]
Abstract
KDM5C encodes a demethylase of the histone H3 lysine 4 residue, involved in chromatin regulation and gene expression. Hemizygous KDM5C pathogenic variants cause X-linked intellectual disability of Claes-Jensen type. Because of its mode of inheritance and the low specificity of the clinical phenotype, interpretation of variants can be difficult, hence the need for functional studies and biomarkers specific to this disorder. We present the case of a male patient with intellectual disability, behavioral abnormalities and subtle dysmorphic features, in which genetic investigation identified a hemizygous novel missense KDM5C variant of uncertain significance (VUS), inherited from his asymptomatic mother and present in his paucisymptomatic sister. We assessed the global genomic DNA methylation status from a whole blood sample of the proband. Global DNA methylation profiling specifically identified the recently discovered epi-signature of Claes-Jensen syndrome. This result served as a biomarker which independently highlighted KDM5C as the cause of the disorder in this patient. Because of the X-linked mode of inheritance, variant reclassification had a high impact on genetic counseling in this family. This example highlights the value of global methylome profiling in situations of variants of uncertain significance in genes with a known specific epi-signature.
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Affiliation(s)
- Juliette Coursimault
- Normandie Univ, UNIROUEN, Inserm U1245, CHU Rouen, Department of Genetics and Reference Center for Developmental Disorders, FHU G4 Génomique, F-76000, Rouen, France
| | - Alice Goldenberg
- Normandie Univ, UNIROUEN, Inserm U1245, CHU Rouen, Department of Genetics and Reference Center for Developmental Disorders, FHU G4 Génomique, F-76000, Rouen, France
| | - Gaël Nicolas
- Normandie Univ, UNIROUEN, Inserm U1245, CHU Rouen, Department of Genetics and Reference Center for Developmental Disorders, FHU G4 Génomique, F-76000, Rouen, France
| | - Pascale Saugier-Veber
- Normandie Univ, UNIROUEN, Inserm U1245, CHU Rouen, Department of Genetics and Reference Center for Developmental Disorders, FHU G4 Génomique, F-76000, Rouen, France
| | - Sophie Coutant
- Normandie Univ, UNIROUEN, Inserm U1245, CHU Rouen, Department of Genetics and Reference Center for Developmental Disorders, FHU G4 Génomique, F-76000, Rouen, France
| | - Anne Vincent
- Reference Centre for Learning Disorders, Rouen University Hospital, F-76031 Rouen Cedex, France; Department of Neonatology and Paediatric Intensive Care, Rouen University Hospital, F-76031 Cedex, France
| | | | - Cécile Feltin
- Institut de Psychiatrie - Centre Hospitalier du Rouvray, Sotteville-lès-Rouen, France
| | - Erfan Aref-Eshghi
- Division of Genomic Diagnostics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Bekim Sadikovic
- Department of Pathology and Laboratory Medicine, Western University, London, Ontario, Canada; Canada and Verspeeten Clinical Genome Centre, London Health Sciences, London, Ontario, Canada
| | - François Lecoquierre
- Normandie Univ, UNIROUEN, Inserm U1245, CHU Rouen, Department of Genetics and Reference Center for Developmental Disorders, FHU G4 Génomique, F-76000, Rouen, France.
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Hu C, He L, Li H, Ding Y, Zhang K, Li D, Zhu G, Wu B, Xu X, Xu Q. Clinical Targeted Panel Sequencing Analysis in Clinical Evaluation of Children with Autism Spectrum Disorder in China. Genes (Basel) 2022; 13:genes13061010. [PMID: 35741772 PMCID: PMC9222325 DOI: 10.3390/genes13061010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/26/2022] [Accepted: 05/28/2022] [Indexed: 12/03/2022] Open
Abstract
Autism spectrum disorder (ASD) is an early-onset neurodevelopmental disorder in which genetics play a major role. Molecular diagnosis may lead to a more accurate prognosis, improved clinical management, and potential treatment of the condition. Both copy number variations (CNVs) and single nucleotide variations (SNVs) have been reported to contribute to the genetic etiology of ASD. The effectiveness and validity of clinical targeted panel sequencing (CTPS) designed to analyze both CNVs and SNVs can be evaluated in different ASD cohorts. CTPS was performed on 573 patients with the diagnosis of ASD. Medical records of positive CTPS cases were further reviewed and analyzed. Additional medical examinations were performed for a group of selective cases. Positive molecular findings were confirmed by orthogonal methods. The overall positive rate was 19.16% (109/569) in our cohort. About 13.89% (79/569) and 4.40% (25/569) of cases had SNVs only and CNVs only findings, respectively, while 0.9% (5/569) of cases had both SNV and CNV findings. For cases with SNVs findings, the SHANK3 gene has the greatest number of reportable variants, followed by gene MYT1L. Patients with MYT1L variants share common and specific clinical characteristics. We found a child with compound heterozygous SLC26A4 variants had an enlarged vestibular aqueduct syndrome and autistic phenotype. Our results showed that CTPS is an effective molecular diagnostic tool for ASD. Thorough clinical and genetic evaluation of ASD can lead to more accurate diagnosis and better management of the condition.
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Affiliation(s)
- Chunchun Hu
- Department of Child Health Care, Children’s Hospital of Fudan University, Shanghai 201102, China; (C.H.); (H.L.); (Y.D.); (K.Z.); (D.L.); (X.X.)
| | - Linlin He
- Pediatric Department, Suining Central Hospital, Suining 629000, China;
| | - Huiping Li
- Department of Child Health Care, Children’s Hospital of Fudan University, Shanghai 201102, China; (C.H.); (H.L.); (Y.D.); (K.Z.); (D.L.); (X.X.)
| | - Yanhua Ding
- Department of Child Health Care, Children’s Hospital of Fudan University, Shanghai 201102, China; (C.H.); (H.L.); (Y.D.); (K.Z.); (D.L.); (X.X.)
| | - Kaifeng Zhang
- Department of Child Health Care, Children’s Hospital of Fudan University, Shanghai 201102, China; (C.H.); (H.L.); (Y.D.); (K.Z.); (D.L.); (X.X.)
| | - Dongyun Li
- Department of Child Health Care, Children’s Hospital of Fudan University, Shanghai 201102, China; (C.H.); (H.L.); (Y.D.); (K.Z.); (D.L.); (X.X.)
| | - Guoqing Zhu
- Pediatric Department, Binzhou Peoples’ Hospital, Binzhou 256600, China;
| | - Bingbing Wu
- Clinical Genetic Center, Children’s Hospital of Fudan University, Shanghai 201102, China;
| | - Xiu Xu
- Department of Child Health Care, Children’s Hospital of Fudan University, Shanghai 201102, China; (C.H.); (H.L.); (Y.D.); (K.Z.); (D.L.); (X.X.)
| | - Qiong Xu
- Department of Child Health Care, Children’s Hospital of Fudan University, Shanghai 201102, China; (C.H.); (H.L.); (Y.D.); (K.Z.); (D.L.); (X.X.)
- Correspondence:
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Li Q, Ren Z, Cao K, Li MM, Wang K, Zhou Y. CancerVar: An artificial intelligence-empowered platform for clinical interpretation of somatic mutations in cancer. SCIENCE ADVANCES 2022; 8:eabj1624. [PMID: 35544644 PMCID: PMC9075800 DOI: 10.1126/sciadv.abj1624] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 03/21/2022] [Indexed: 05/12/2023]
Abstract
Several knowledgebases are manually curated to support clinical interpretations of thousands of hotspot somatic mutations in cancer. However, discrepancies or even conflicting interpretations are observed among these databases. Furthermore, many previously undocumented mutations may have clinical or functional impacts on cancer but are not systematically interpreted by existing knowledgebases. To address these challenges, we developed CancerVar to facilitate automated and standardized interpretations for 13 million somatic mutations based on the AMP/ASCO/CAP 2017 guidelines. We further introduced a deep learning framework to predict oncogenicity for these variants using both functional and clinical features. CancerVar achieved satisfactory performance when compared to several independent knowledgebases and, using clinically curated datasets, demonstrated practical utility in classifying somatic variants. In summary, by integrating clinical guidelines with a deep learning framework, CancerVar facilitates clinical interpretation of somatic variants, reduces manual work, improves consistency in variant classification, and promotes implementation of the guidelines.
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Affiliation(s)
- Quan Li
- Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, ON M5G2C1, Canada
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Zilin Ren
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Kajia Cao
- Division of Genomic Diagnostics, Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Marilyn M. Li
- Division of Genomic Diagnostics, Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kai Wang
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Yunyun Zhou
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
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Xiao T, Chen X, Xu Y, Chen H, Dong X, Yang L, Wu B, Chen L, Li L, Zhuang D, Chen D, Zhou Y, Wang H, Zhou W. Clinical Study of 30 Novel KCNQ2 Variants/Deletions in KCNQ2-Related Disorders. Front Mol Neurosci 2022; 15:809810. [PMID: 35557555 PMCID: PMC9088225 DOI: 10.3389/fnmol.2022.809810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 03/02/2022] [Indexed: 11/24/2022] Open
Abstract
Background KCNQ2-related disorder is typically characterized as neonatal onset seizure and epileptic encephalopathy. The relationship between its phenotype and genotype is still elusive. This study aims to provide clinical features, management, and prognosis of patients with novel candidate variants of the KCNQ2 gene. Methods We enrolled patients with novel variants in the KCNQ2 gene from the China Neonatal Genomes Project between January 2018 and January 2021. All patients underwent next-generation sequencing tests and genetic data were analyzed by an in-house pipeline. The pathogenicity of variants was classified according to the guideline of the American College of Medical Genetics. Each case was evaluated by two geneticists back to back. Patients' information was acquired from clinical records. Results A total of 30 unrelated patients with novel variants in the KCNQ2 gene were identified, including 19 patients with single-nucleotide variants (SNVs) and 11 patients with copy number variants (CNVs). For the 19 SNVs, 12 missense variants and 7 truncating variants were identified. Of them, 36.8% (7/19) of the KCNQ2 variants were located in C-terminal regions, 15.7% (3/19) in segment S2, and 15.7% (3/19) in segment S4. Among them, 18 of 19 patients experienced seizures in the early neonatal period. However, one patient presented neurodevelopmental delay (NDD) as initial phenotype when he was 2 months old, and he had severe NDD when he was 3 years old. This patient did not present seizure but had abnormal electrographic background activity and brain imaging. Moreover, for the 11 patients with CNVs, 20q13.3 deletions involving EEF1A2, KCNQ2, and CHRNA4 genes were detected. All of them presented neonatal-onset seizures, responded to antiepileptic drugs, and had normal neurological development. Conclusion In this study, patients with novel KCNQ2 variants have variable phenotypes, whereas patients with 20q13.3 deletion involving EEF1A2, KCNQ2, and CHRNA4 genes tend to have normal neurological development.
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Affiliation(s)
- Tiantian Xiao
- Department of Neonatology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Xiang Chen
- Department of Neonatology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Yan Xu
- Division of Neurology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Huiyao Chen
- Center for Molecular Medicine, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Xinran Dong
- Center for Molecular Medicine, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Lin Yang
- Department of Endocrinology and Inherited Metabolic Diseases, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Bingbing Wu
- Center for Molecular Medicine, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Liping Chen
- Jiangxi Provincial Children's Hospital, Nanchang, China
| | - Long Li
- Department of Neonatology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | | | - Dongmei Chen
- Quanzhou Women and Children's Hospital, Quanzhou, China
| | - Yuanfeng Zhou
- Division of Neurology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
- *Correspondence: Yuanfeng Zhou
| | - Huijun Wang
- Center for Molecular Medicine, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
- Huijun Wang
| | - Wenhao Zhou
- Department of Neonatology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
- Center for Molecular Medicine, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
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Ni Q, Chen X, Zhang P, Yang L, Lu Y, Xiao F, Wu B, Wang H, Zhou W, Dong X. Systematic estimation of cystic fibrosis prevalence in Chinese and genetic spectrum comparison to Caucasians. Orphanet J Rare Dis 2022; 17:129. [PMID: 35313924 PMCID: PMC8935702 DOI: 10.1186/s13023-022-02279-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 03/07/2022] [Indexed: 11/21/2022] Open
Abstract
Background Cystic fibrosis (CF) is a common, life-threatening genetic disease in Caucasians but rarely reported in Chinese population. The prevalence and population-specific genetic spectrum of CF in China needs to be systematically estimated and compared with Caucasians.
Materials and methods We reviewed 30,951 exome-sequencing samples, including 20,909 pediatric patient samples and 10,042 parent samples, from Chinese Children's Rare Disease Genetic Testing Clinical Collaboration System (CCGT). After the in-lab filtration process, 477 candidate variants of CFTR gene were left and 53 variants were manually curated as pathogenic/likely-pathogenic (P/LP). These P/LP variants were adopted to estimate CF prevalence in three methods: the carrier frequency method, the permutation-combinations method and the Bayesian framework method. Allele frequencies of the 477 CFTR variants were compared with non-Finland European (NFE) and East Asian (EAS) from gnomAD database. To investigate the haplotype structure difference of CFTR, another 2067 whole-genome-sequencing samples from CCGT and 195 NFE from 1000 genome project were analyzed by Shapeit4 software. Result With the 53 manually curated P/LP variants in CFTR gene, we excluded individuals identified or suspected with CF and their parents in our cohorts and estimated the Chinese CF prevalence is approximately 1/128,434. Only 21 (39.6%) of the 53 variants were included in Caucasian specific CF screening panels, resulting in significantly under-estimation of CF prevalence in our children cohort (1/143,171 vs. 1/1,387,395, P = 5e−24) and parent’s cohort (1/110,127 vs. 1/872,437, P = 7e−10). The allele frequencies of six pathogenic variants (G970D, D979A, M469V, G622D, L88X, 1898+5G->T) were significantly higher in our cohorts compared with gnomAD-NFE population (all P-value < 0.1). Haplotype analysis showed more haplotype diversity in Chinese compared to Caucasians. In addition, G970D and F508del were founder mutation of Chinese and Caucasians with two SNPs (rs213950-rs1042077) identified as related genotype in exon region. Conclusions Chinese population showed significantly different genetic spectrum pattern in CFTR gene compared with Caucasian population, and thus a Chinese-specific CF screening panel is needed. Supplementary Information The online version contains supplementary material available at 10.1186/s13023-022-02279-9.
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Affiliation(s)
- Qi Ni
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, National Children's Medical Center, Shanghai, 201102, People's Republic of China.,Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, People's Republic of China
| | - Xiang Chen
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, People's Republic of China.,Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, People's Republic of China
| | - Ping Zhang
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, People's Republic of China
| | - Lin Yang
- Department of Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, Shanghai, People's Republic of China
| | - Yulan Lu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, People's Republic of China
| | - Feifan Xiao
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, People's Republic of China
| | - Bingbing Wu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, People's Republic of China
| | - Huijun Wang
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, People's Republic of China
| | - Wenhao Zhou
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, National Children's Medical Center, Shanghai, 201102, People's Republic of China. .,Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, People's Republic of China. .,Division of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, People's Republic of China.
| | - Xinran Dong
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, National Children's Medical Center, Shanghai, 201102, People's Republic of China. .,Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, People's Republic of China.
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Mei H, Yang L, Xiao T, Wang S, Wu B, Wang H, Lu Y, Dong X, Yang H, Zhou W. Genetic Spectrum Identified by Exome Sequencing in a Chinese Pediatric Cerebral Palsy Cohort. J Pediatr 2022; 242:206-212.e6. [PMID: 34788679 DOI: 10.1016/j.jpeds.2021.11.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/29/2021] [Accepted: 11/10/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To explore the genetic spectrum of cerebral palsy (CP) in a Chinese pediatric cohort. STUDY DESIGN This was a retrospective observational study of patients with CP from the Children's Hospital of Fudan University between June 2015 and December 2019. Their clinical data and exome sequencing data were collected and analyzed. RESULTS A total of 217 patients with CP were enrolled, and genetic variants were identified in 78 subjects (35.9%): 65 patients with single-nucleotide variants (SNVs), 12 patients with copy number variants, and 1 patient with both an SNV and a copy number variant. The genetic diagnosis rates were significantly greater in patients without clinical risk factors than in patients with clinical risk factors (χ2 = 21.705, P = .000) and were significantly greater in patients with a family history than in those without a family history (χ2 = 4.493, P = .034). Variants in genes related to neurologic disorders were the most commonly detected variants, affecting 41 patients (62.1%, 41/66). Among the patients with SNVs detected, the top 12 genes were found to cover 62.1% (41/66) of cases, and 39.4% (26/66) of patients with SNVs had medically actionable genetic findings. CONCLUSIONS The overall genetic diagnostic rate in this study was 35.9%, and patients without any clinical risk factors or with a family history were more likely to have genetic risk factors. The top 12 genes detected in this study as well as genes related to neurologic disorders or other medically actionable disorders should be noted in the analysis of genetic testing results in patients with CP.
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Affiliation(s)
- Hongfang Mei
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Lin Yang
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Tiantian Xiao
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Sujuan Wang
- Department of Rehabilitation, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Bingbing Wu
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Huijun Wang
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Yulan Lu
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Xinran Dong
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Hong Yang
- Department of Rehabilitation, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Wenhao Zhou
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China; Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.
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Methods to Improve Molecular Diagnosis in Genomic Cold Cases in Pediatric Neurology. Genes (Basel) 2022; 13:genes13020333. [PMID: 35205378 PMCID: PMC8871714 DOI: 10.3390/genes13020333] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/06/2022] [Accepted: 02/07/2022] [Indexed: 02/04/2023] Open
Abstract
During the last decade, genetic testing has emerged as an important etiological diagnostic tool for Mendelian diseases, including pediatric neurological conditions. A genetic diagnosis has a considerable impact on disease management and treatment; however, many cases remain undiagnosed after applying standard diagnostic sequencing techniques. This review discusses various methods to improve the molecular diagnostic rates in these genomic cold cases. We discuss extended analysis methods to consider, non-Mendelian inheritance models, mosaicism, dual/multiple diagnoses, periodic re-analysis, artificial intelligence tools, and deep phenotyping, in addition to integrating various omics methods to improve variant prioritization. Last, novel genomic technologies, including long-read sequencing, artificial long-read sequencing, and optical genome mapping are discussed. In conclusion, a more comprehensive molecular analysis and a timely re-analysis of unsolved cases are imperative to improve diagnostic rates. In addition, our current understanding of the human genome is still limited due to restrictions in technologies. Novel technologies are now available that improve upon some of these limitations and can capture all human genomic variation more accurately. Last, we recommend a more routine implementation of high molecular weight DNA extraction methods that is coherent with the ability to use and/or optimally benefit from these novel genomic methods.
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Peng X, Lu Y, Wang H, Wu B, Gan M, Xu S, Zhuang D, Wang J, Sun J, Wang X, Zhou W. Further Delineation of the Spectrum of XMEN Disease in Six Chinese Pediatric Patients. Front Genet 2022; 13:768000. [PMID: 35145548 PMCID: PMC8821886 DOI: 10.3389/fgene.2022.768000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 01/05/2022] [Indexed: 11/13/2022] Open
Abstract
X-linked MAGT1 deficiency with increased susceptibility to EBV-infection and N-linked glycosylation defect (XMEN) disease is a primary immunodeficiency caused by loss-of-function variants in the MAGT1 gene. Only two patients from one family have been diagnosed with XMEN in China. In this study, we retrospectively analyzed the genetic, clinical, and immunological characteristics of six pediatric patients in a Chinese cohort. Medical records were retrieved, immunological phenotypes were assessed, and infectious microbes in patients were detected. Six male patients (mean age, 6.3 years) from five unrelated families were genetically diagnosed as XMEN. Five patients presented with a major complaint of elevated liver enzymes, while one patient was referred for recurrent fever, cough and skin rash. Five patients developed EBV viremia, and one patient developed non-Hodgkin’s lymphoma. Histopathological findings from liver biopsy tissues showed variable hepatic steatosis, fibrosis, inflammatory infiltration, and glycogenosis. Immune phenotypes included CD4 T-cell lymphopenia, elevated B cells, inverted CD4/CD8 ratios, and elevated αβDNTs. No pathogenic microbes other than EBV were identified in these patients. This study reports the clinical and molecular features of Chinese patients with XMEN. For patients with transaminase elevation, chronic EBV infection and EBV-associated lymphoproliferative disease, the possibility of XMEN should be considered in addition to isolated liver diseases.
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Affiliation(s)
- Xiaomin Peng
- Center for Molecular Medicine of Children’s Hospital of Fudan University and National Children’s Medical Center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Yi Lu
- Center for Pediatric Liver Diseases, Children’s Hospital of Fudan University and National Children’s Medical Center, Shanghai, China
| | - Huijun Wang
- Center for Molecular Medicine, Key Laboratory of Birth Defects, Pediatrics Research Institute, Children’s Hospital of Fudan University and National Children’s Medical Center, Shanghai, China
| | - Bingbing Wu
- Center for Molecular Medicine, Key Laboratory of Birth Defects, Pediatrics Research Institute, Children’s Hospital of Fudan University and National Children’s Medical Center, Shanghai, China
| | - Mingyu Gan
- Center for Molecular Medicine, Key Laboratory of Birth Defects, Pediatrics Research Institute, Children’s Hospital of Fudan University and National Children’s Medical Center, Shanghai, China
| | - Suzhen Xu
- Center for Molecular Medicine, Key Laboratory of Birth Defects, Pediatrics Research Institute, Children’s Hospital of Fudan University and National Children’s Medical Center, Shanghai, China
| | - Deyi Zhuang
- Department of Pediatrics, Xiamen Children’s Hospital, Xiamen, China
| | - Jianshe Wang
- Center for Pediatric Liver Diseases, Children’s Hospital of Fudan University and National Children’s Medical Center, Shanghai, China
| | - Jinqiao Sun
- Department of Clinical Immunology, Children’s Hospital of Fudan University and National Children’s Medical Center, Shanghai, China
| | - Xiaochuan Wang
- Department of Clinical Immunology, Children’s Hospital of Fudan University and National Children’s Medical Center, Shanghai, China
- *Correspondence: Xiaochuan Wang, ; Wenhao Zhou,
| | - Wenhao Zhou
- Center for Molecular Medicine of Children’s Hospital of Fudan University and National Children’s Medical Center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
- *Correspondence: Xiaochuan Wang, ; Wenhao Zhou,
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Hu L, Yang L, Yan K, Wu B, Wang H, Zhang R, Wang J, Cao Y, Cheng G, Zhou W. Importance of Early Genetic Sequencing in Neonates Admitted to NICU with Recurrent Hypernatremia: Results of a Prospective Cohort Study. Neonatology 2022; 119:103-110. [PMID: 34802008 DOI: 10.1159/000519634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 09/10/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVES The genetic characteristics in neonates admitted to the NICU with recurrent hypernatremia remained unknown. We aimed to implement early genetic sequencing to identify possible genetic etiologies, optimize the treatment, and improve the outcome. METHODS We prospectively performed exome sequencing or targeted panel sequencing on neonates diagnosed with recurrent hypernatremia (plasma sodium ≥150 mEq/L, ≥2 episodes) from January 1, 2016, to June 30, 2020. RESULTS Among 22,375 neonates admitted to the NICU, approximately 0.33% (73/22,375) developed hypernatremia. The incidence of hypernatremia >14 days and ≤14 days was 0.03% and 0.3%, respectively. Among 38 neonates who had ≥2 hypernatremia episodes, parents of 28 patients consented for sequencing. Genetic diagnosis was achieved in 25% neonates (7/28). Precision medicine treatment was performed in 85.7% (6/7) of the patients, including hydrochlorothiazide and indomethacin for 57.1% (4/7) with arginine vasopressin receptor 2 (AVPR2) deficiency-associated congenital nephrogenic diabetes insipidus; a special diet of fructose formula for 1 patient with solute carrier family 5 member 1 deficiency-associated congenital glucose-galactose malabsorption (1/7, 14.3%); and kallikrein-inhibiting ointment for 1 patient with serine protease inhibitor of Kazal-type 5 deficiency-associated Netherton syndrome (1/7, 14.3%). Only hypernatremia onset age (adjusted odds ratio 1.32 [1.01-1.72], p = 0.040) independently predicted the underlying genetic etiology. The risk of a genetic etiology of hypernatremia was 9.0 times higher for neonates with a hypernatremia onset age ≥17.5 days (95% confidence interval, 1.1-73.2; p = 0.038). CONCLUSIONS Single-gene disorders are common in neonates with recurrent hypernatremia, and >50% of cases are caused by AVPR2 deficiency-associated congenital nephrogenic diabetes insipidus. Early genetic testing can aid the diagnosis of unexplained recurrent neonatal hypernatremia and improve therapy and outcome.
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Affiliation(s)
- Liyuan Hu
- Department of Neonatology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Lin Yang
- Clinical Genetic Center, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Kai Yan
- Department of Neonatology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Bingbing Wu
- Shanghai Key Laboratory of Birth Defects, National Children's Medical Center, The Translational Medicine Center of Children Development and Disease of Fudan University, Children's Hospital of Fudan University, Shanghai, China
| | - Huijun Wang
- Shanghai Key Laboratory of Birth Defects, National Children's Medical Center, The Translational Medicine Center of Children Development and Disease of Fudan University, Children's Hospital of Fudan University, Shanghai, China
| | - Rong Zhang
- Department of Neonatology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Jin Wang
- Department of Neonatology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Yun Cao
- Department of Neonatology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Guoqiang Cheng
- Department of Neonatology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Wenhao Zhou
- Department of Neonatology, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China.,China Neonatal Genomes Project (CNGP), Shanghai, China
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Exome Sequencing Reveals Novel Variants and Expands the Genetic Landscape for Congenital Microcephaly. Genes (Basel) 2021; 12:genes12122014. [PMID: 34946966 PMCID: PMC8700965 DOI: 10.3390/genes12122014] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/12/2021] [Accepted: 12/15/2021] [Indexed: 11/23/2022] Open
Abstract
Congenital microcephaly causes smaller than average head circumference relative to age, sex and ethnicity and is most usually associated with a variety of neurodevelopmental disorders. The underlying etiology is highly heterogeneous and can be either environmental or genetic. Disruption of any one of multiple biological processes, such as those underlying neurogenesis, cell cycle and division, DNA repair or transcription regulation, can result in microcephaly. This etiological heterogeneity manifests in a clinical variability and presents a major diagnostic and therapeutic challenge, leaving an unacceptably large proportion of over half of microcephaly patients without molecular diagnosis. To elucidate the clinical and genetic landscapes of congenital microcephaly, we sequenced the exomes of 191 clinically diagnosed patients with microcephaly as one of the features. We established a molecular basis for microcephaly in 71 patients (37%), and detected novel variants in five high confidence candidate genes previously unassociated with this condition. We report a large number of patients with mutations in tubulin-related genes in our cohort as well as higher incidence of pathogenic mutations in MCPH genes. Our study expands the phenotypic and genetic landscape of microcephaly, facilitating differential clinical diagnoses for disorders associated with most commonly disrupted genes in our cohort.
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Chen W, Qin J, Shen Y, Liang J, Cui Y, Zhang Y. Next generation sequencing in children with unexplained epilepsy: A retrospective cohort study. Brain Dev 2021; 43:1004-1012. [PMID: 34120799 DOI: 10.1016/j.braindev.2021.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/07/2021] [Accepted: 05/25/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To evaluate the clinical utility of next-generation sequencing (NGS) in unexplained pediatric epilepsy, and to identify the potential predictors associated with Mendelian genetic causes. METHODS Two hundred and ten children with unexplained epilepsy, who underwent NGS test were included. We analyzed the demographic, clinical and genetic characteristics, and executed a Logistic regression analysis for identifying predictors for Mendelian genetic causes. Patients were classified as either with isolated epilepsy or syndromic epilepsy with concurrent neurodevelopmental phenotypes. RESULTS The overall diagnostic yield was 29.0% (61/210). A total of 68 variants spanning 39 genes were identified in 58 patients (27.6%, 58/210) from exome sequencing based testing. Of the 68 variants, 33 were novel ones. Besides, STAR and CNTN2 were identified to be a candidate gene for epilepsy. Patients with syndromic epilepsy had a much higher diagnostic yield than that of isolated epilepsy (53/135, 39.3% vs. 8/75, 10.7%, p = 0.000). The odds ratio of detecting genetic cause was 3.939 (95% CI 1.369-11.332) for syndromic epilepsy without epileptic encephalopathy (EE), 5.814 (95% CI 2.208-15.306) for EE, 2.958 (95% CI 1.093-8.000) for patients with seizure onset <12 months, and 2.932 (95%CI 1.414-6.080) for female. Of the 210 patients, 78.4% of patients (145/185) had at least a 50% reduction in seizure frequency and 58.9% (109/185) reached seizure freedom. There was no difference between seizure prognosis and diagnostic outcomes. SIGNIFICANCE NGS is effective for Mendelian genetic etiological diagnosis for unexplained pediatric epilepsy. Female patients with syndromic epilepsy with onset within the first year of life are most likely to yield a positive test result.
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Affiliation(s)
- Wenjie Chen
- Department of Paediatrics, Peking University People's Hospital, Beijing 100044, China
| | - Jiong Qin
- Department of Paediatrics, Peking University People's Hospital, Beijing 100044, China.
| | - Yiping Shen
- The Maternal and Child Health Care Hospital of Guangxi Zhuang Autonomous Region, Guangxi Birth Defects Prevention and Control Institute, China; Department of Medical Genetics, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China; Division of Genetics and Genomics, Boston Children's Hospital, Boston, MA, USA; Department of Neurology, Harvard Medical School, Boston, MA 02115, USA.
| | - Jingjing Liang
- Department of Paediatrics, Peking University People's Hospital, Beijing 100044, China
| | - Yanan Cui
- Department of Paediatrics, Peking University People's Hospital, Beijing 100044, China
| | - Ying Zhang
- Department of Paediatrics, Peking University People's Hospital, Beijing 100044, China
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Dai Y, Yin R, Yang L, Li ZH. Clinical and genetic spectrum of neonatal arrhythmia in a NICU. Transl Pediatr 2021; 10:2432-2438. [PMID: 34765466 PMCID: PMC8578746 DOI: 10.21037/tp-21-233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 08/05/2021] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Neonatal arrhythmia is a common complication that might be life-threatening or serious, but the genetic causes are unclear in most cases. The aim of this study is to investigate the genetic causes of neonatal arrhythmia in a NICU in China. METHODS Newborns who were diagnosed with arrhythmia during the neonatal period were enrolled from Children's Hospital of Fudan University between January 1st 2016, and December 31st, 2019. A neonatal gene panel was performed for each infant. RESULTS In total, 98 neonatal infants with arrhythmia were enrolled. Fourteen genes and a copy number change were identified and classified as pathogenic/likely pathogenic in 22 patients (22.4%), including 4 genes related to syndrome, 4 related to conduction, 2 related to metabolism, 2 related to structure, 2 related to respiration and immunity, respectively, and trisomy 21. Altogether, 6 genes (6/14, 42.9%) caused original heart structure or conduction abnormalities, leading to arrhythmia. Infants with ventricular tachycardia or fibrillation, atrioventricular block and long-QT syndrome all had positive gene results. The gene positive rate among arrhythmic infants with congenital heart disease or severe heart failure was higher than that of infants without congenital heart disease or severe heart failure. CONCLUSIONS The genetic disorders associated with neonatal arrhythmia could be syndrome-, conduction-, metabolism-, and structure-related. Infants with non-benign arrhythmia, especially ventricular tachycardia or fibrillation, long-QT syndrome, or high-grade atrioventricular block, have a higher rate of genetic abnormalities and should undergo genetic sequencing. Neonates with hereditary arrhythmias may have a higher risk of congenital heart disease or heart failure.
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Affiliation(s)
- Yi Dai
- Department of Neonatology, Children's Hospital of Fudan University, Key Laboratory of Neonatal Disease, National Health Commission, Shanghai, China
| | - Rong Yin
- Department of Neonatology, Children's Hospital of Fudan University, Key Laboratory of Neonatal Disease, National Health Commission, Shanghai, China
| | - Lin Yang
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, Shanghai, China
| | - Zhi-Hua Li
- Department of Neonatology, Children's Hospital of Fudan University, Key Laboratory of Neonatal Disease, National Health Commission, Shanghai, China
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Han JY, Park J. A Recurrent De Novo Terminal Duplication of 14q32 in Korean Siblings Associated with Developmental Delay and Intellectual Disability, Growth Retardation, Facial Dysmorphism, and Cerebral Infarction: A Case Report and Literature Review. Genes (Basel) 2021; 12:1388. [PMID: 34573370 PMCID: PMC8472681 DOI: 10.3390/genes12091388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 11/16/2022] Open
Abstract
The terminal 14q32 duplication has been reported often in association with other cytogenetic abnormalities, and individuals with this specific duplication showed varying degrees of developmental delay/intellectual disability (DD/ID) and growth retardation (GR), and distinct facial dysmorphisms. Herein, based on the limited cases of terminal duplication of 14q32 known to date, we present new affected siblings presenting with DD/ID, GR, and facial dysmorphism, as well as cerebral infarction caused by recurrent de novo der(14)t(14;14)(p11.2;q32.1) leading to terminal duplication of 14q32. We used coverage analysis generated via duo exome sequencing, performed chromosomal microarray (CMA) as a confirmatory test, and compared our findings with those reported previously. Coverage analysis generated via duo exome sequencing revealed a 17.2 Mb heterozygous duplication at chromosome 14q32.11-q32.33 with a Z ratio ranging between 0.5 and 1 in the proband and her elder brother. As a complementary method, CMA established a terminal duplication described as the arr[hg19]14q32.11q32.33(90,043,558_107,258,824)x3 in the proband and her elder brother; however, the parents and other siblings showed normal karyotyping and no abnormal gain or loss of CMA results. Five candidate genes, BCL11B, CCNK, YY1, DYNC1H1, and PACS2, were associated with the clinical phenotypes in our cases. Although the parents had normal chromosomes, two affected cases carrying terminal duplication of 14q32 can be explained by gonadal mosaicism. Further studies are needed to establish the association between cerebrovascular events and terminal duplication of chromosome 14q32, including investigation into the cytogenetics of patients with precise clinical descriptions.
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Affiliation(s)
- Ji Yoon Han
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Joonhong Park
- Department of Laboratory Medicine, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Korea
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Xiao F, Lu Y, Wu B, Liu B, Li G, Zhang P, Zhou Q, Sun J, Wang H, Zhou W. High-Frequency Exon Deletion of DNA Cross-Link Repair 1C Accounting for Severe Combined Immunodeficiency May Be Missed by Whole-Exome Sequencing. Front Genet 2021; 12:677748. [PMID: 34421990 PMCID: PMC8372405 DOI: 10.3389/fgene.2021.677748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 06/28/2021] [Indexed: 11/18/2022] Open
Abstract
Next-generation sequencing (NGS) has been used to detect severe combined immunodeficiency (SCID) in patients, and some patients with DNA cross-link repair 1C (DCLRE1C) variants have been identified. Moreover, some compound variants, such as copy number variants (CNV) and single nucleotide variants (SNV), have been reported. The purpose of this study was to expand the genetic data related to patients with SCID carrying the compound DCLRE1C variant. Whole-exome sequencing (WES) was performed for genetic analysis, and variants were verified by performing Sanger sequencing or quantitative PCR. Moreover, we searched PubMed and summarized the data of the reported variants. Four SCID patients with DCLRE1C variants were identified in this study. WES revealed a homozygous deletion in the DCLRE1C gene from exons 1–5 in patient 1, exons 1–3 deletion and a novel rare variant (c.92T>C, p.L31P) in patient 2, exons 1–3 deletion and a novel rare variant (c.328C>G, p.L110V) in patient 3, and exons 1–4 deletion and a novel frameshift variant (c.449dup, p.His151Alafs*20) in patient 4. Based on literature review, exons 1–3 was recognized as a hotspot region for deletion variation. Moreover, we found that compound variations (CNV + SNV) accounted for approximately 7% variations in all variants. When patients are screened for T-cell receptor excision circles (TRECs), NGS can be used to expand genetic testing. Deletion of the DCLRE1C gene should not be ignored when a variant has been found in patients with SCID.
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Affiliation(s)
- Feifan Xiao
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Yulan Lu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Bingbing Wu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Bo Liu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Gang Li
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Ping Zhang
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Qinhua Zhou
- Department of Immunology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Jinqiao Sun
- Department of Immunology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Huijun Wang
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Wenhao Zhou
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Key Laboratory of Neonatal Diseases, Ministry of Health, Department of Neonates, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
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Dai D, Chen H, Dong X, Chen J, Mei M, Lu Y, Yang L, Wu B, Cao Y, Wang J, Zhou W, Qian L. Bronchopulmonary Dysplasia Predicted by Developing a Machine Learning Model of Genetic and Clinical Information. Front Genet 2021; 12:689071. [PMID: 34276789 PMCID: PMC8283015 DOI: 10.3389/fgene.2021.689071] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/31/2021] [Indexed: 11/13/2022] Open
Abstract
Background An early and accurate evaluation of the risk of bronchopulmonary dysplasia (BPD) in premature infants is pivotal in implementing preventive strategies. The risk prediction models nowadays for BPD risk that included only clinical factors but without genetic factors are either too complex without practicability or provide poor-to-moderate discrimination. We aim to identify the role of genetic factors in BPD risk prediction early and accurately. Methods Exome sequencing was performed in a cohort of 245 premature infants (gestational age <32 weeks), with 131 BPD infants and 114 infants without BPD as controls. A gene burden test was performed to find risk genes with loss-of-function mutations or missense mutations over-represented in BPD and severe BPD (sBPD) patients, with risk gene sets (RGS) defined as BPD-RGS and sBPD-RGS, respectively. We then developed two predictive models for the risk of BPD and sBPD by integrating patient clinical and genetic features. The performance of the models was evaluated using the area under the receiver operating characteristic curve (AUROC). Results Thirty and 21 genes were included in BPD-RGS and sBPD-RGS, respectively. The predictive model for BPD, which combined the BPD-RGS and basic clinical risk factors, showed better discrimination than the model that was only based on basic clinical features (AUROC, 0.915 vs. AUROC, 0.814, P = 0.013, respectively) in the independent testing dataset. The same was observed in the predictive model for sBPD (AUROC, 0.907 vs. AUROC, 0.826; P = 0.016). Conclusion This study suggests that genetic information contributes to susceptibility to BPD. The predictive model in this study, which combined BPD-RGS with basic clinical risk factors, can thus accurately stratify BPD risk in premature infants.
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Affiliation(s)
- Dan Dai
- Division of Pulmonary Medicine, Children's Hospital of Fudan University, Shanghai, China
| | - Huiyao Chen
- Molecular Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Xinran Dong
- Molecular Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Jinglong Chen
- Division of Pulmonary Medicine, Children's Hospital of Fudan University, Shanghai, China
| | - Mei Mei
- Division of Pulmonary Medicine, Children's Hospital of Fudan University, Shanghai, China
| | - Yulan Lu
- Molecular Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Lin Yang
- Molecular Medical Center, Children's Hospital of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Birth Defects, Shanghai, China
| | - Bingbing Wu
- Molecular Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Yun Cao
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Jin Wang
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Wenhao Zhou
- Molecular Medical Center, Children's Hospital of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Birth Defects, Shanghai, China.,Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Liling Qian
- Division of Pulmonary Medicine, Children's Hospital of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Birth Defects, Shanghai, China
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Han JY, Park J. Variable Phenotypes of Epilepsy, Intellectual Disability, and Schizophrenia Caused by 12p13.33-p13.32 Terminal Microdeletion in a Korean Family: A Case Report and Literature Review. Genes (Basel) 2021; 12:genes12071001. [PMID: 34210021 PMCID: PMC8303811 DOI: 10.3390/genes12071001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/23/2021] [Accepted: 06/28/2021] [Indexed: 12/20/2022] Open
Abstract
A simultaneous analysis of nucleotide changes and copy number variations (CNVs) based on exome sequencing data was demonstrated as a potential new first-tier diagnosis strategy for rare neuropsychiatric disorders. In this report, using depth-of-coverage analysis from exome sequencing data, we described variable phenotypes of epilepsy, intellectual disability (ID), and schizophrenia caused by 12p13.33–p13.32 terminal microdeletion in a Korean family. We hypothesized that CACNA1C and KDM5A genes of the six candidate genes located in this region were the best candidates for explaining epilepsy, ID, and schizophrenia and may be responsible for clinical features reported in cases with monosomy of the 12p13.33 subtelomeric region. On the background of microdeletion syndrome, which was described in clinical cases with mild, moderate, and severe neurodevelopmental manifestations as well as impairments, the clinician may determine whether the patient will end up with a more severe or milder end-phenotype, which in turn determines disease prognosis. In our case, the 12p13.33–p13.32 terminal microdeletion may explain the variable expressivity in the same family. However, further comprehensive studies with larger cohorts focusing on careful phenotyping across the lifespan are required to clearly elucidate the possible contribution of genetic modifiers and the environmental influence on the expressivity of 12p13.33 microdeletion and associated characteristics.
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Affiliation(s)
- Ji Yoon Han
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Joonhong Park
- Department of Laboratory Medicine, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Korea
- Correspondence: ; Tel.: +82-63-250-1218
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Mei HF, Dong XR, Chen HY, Lu YL, Wu BB, Wang HJ, Cheng GQ, Wang LS, Cao Y, Yang L, Zhou WH. Genetic etiologies associated with infantile hydrocephalus in a Chinese infantile cohort. World J Pediatr 2021; 17:305-316. [PMID: 33914258 DOI: 10.1007/s12519-021-00429-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 03/31/2021] [Indexed: 11/30/2022]
Abstract
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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Affiliation(s)
- Hong-Fang Mei
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Xin-Ran Dong
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Hui-Yao Chen
- Center for Molecular Medicine of Children's Hospital of Fudan University, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Yu-Lan Lu
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Bing-Bing Wu
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Hui-Jun Wang
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Guo-Qiang Cheng
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Lai-Shuan Wang
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Yun Cao
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Lin Yang
- Clinical Genetic Center, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wan Yuan Road, Shanghai, 201102, China.
| | - Wen-Hao Zhou
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Key Laboratory of Birth Defects, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Clinical Genetic Center, Children's Hospital of Fudan University, National Children's Medical Center, 399 Wan Yuan Road, Shanghai, 201102, China
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Zhai Y, Zhang Z, Shi P, Martin DM, Kong X. Incorporation of exome-based CNV analysis makes trio-WES a more powerful tool for clinical diagnosis in neurodevelopmental disorders: A retrospective study. Hum Mutat 2021; 42:990-1004. [PMID: 34015165 DOI: 10.1002/humu.24222] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 05/17/2021] [Accepted: 05/18/2021] [Indexed: 11/05/2022]
Abstract
Neurodevelopmental disorders (NDDs) are a genetically heterogeneous group of diseases, affecting 1%-3% of children. Whole-exome sequencing (WES) has been widely used as a first-tier tool for identifying genetic causes of rare diseases. Trio-WES was performed in a cohort of 74 pedigrees with NDDs. Exome-based copy number variant (CNV) calling was incorporated into the traditional single-nucleotide variant (SNV) and small insertion/deletion (Indel) analysis pipeline for WES data. An overall positive diagnostic yield of 54.05% (40/74) was obtained in the pipeline of combinational SNV/Indel and CNV analysis, including 35.13% (26/74) from SNV/Indel analysis and 18.92% (14/74) from exome-based CNV analysis, respectively. In total, SNV/Indel analysis identified 38 variants in 28 different genes, of which 24 variants were novel; exome-based CNV analysis identified 14 CNVs, including 2 duplications and 12 deletions, which ranged from 440 bp (single exon) to 16.86 Mb (large fragment) in size. In particular, a hemizygous deletion of exon 1 in the SLC16A2 gene was detected. Based on the diagnostic results, two families underwent prenatal diagnosis and had unaffected babies. The incorporation of exome-based CNV detection into conventional SNV/Indel analysis for a single trio-WES test significantly improved the diagnostic rate, making WES a more powerful, practical, and cost-effective tool in the clinical diagnosis of NDDs.
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Affiliation(s)
- Yiwen Zhai
- Center of Genetic and Prenatal Diagnosis, Department of Gynecology and Obstetrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.,Departments of Pediatrics and Human Genetics, The University of Michigan, Ann Arbor, Michigan, USA
| | - Zhanhui Zhang
- Department of Bioinformatics, Berry Genomics Corporation, Beijing, China
| | - Panlai Shi
- Center of Genetic and Prenatal Diagnosis, Department of Gynecology and Obstetrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Donna M Martin
- Departments of Pediatrics and Human Genetics, The University of Michigan, Ann Arbor, Michigan, USA
| | - Xiangdong Kong
- Center of Genetic and Prenatal Diagnosis, Department of Gynecology and Obstetrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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49
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Next-Generation Sequencing Applications for Inherited Retinal Diseases. Int J Mol Sci 2021; 22:ijms22115684. [PMID: 34073611 PMCID: PMC8198572 DOI: 10.3390/ijms22115684] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/21/2021] [Accepted: 05/22/2021] [Indexed: 12/12/2022] Open
Abstract
Inherited retinal diseases (IRDs) represent a collection of phenotypically and genetically diverse conditions. IRDs phenotype(s) can be isolated to the eye or can involve multiple tissues. These conditions are associated with diverse forms of inheritance, and variants within the same gene often can be associated with multiple distinct phenotypes. Such aspects of the IRDs highlight the difficulty met when establishing a genetic diagnosis in patients. Here we provide an overview of cutting-edge next-generation sequencing techniques and strategies currently in use to maximise the effectivity of IRD gene screening. These techniques have helped researchers globally to find elusive causes of IRDs, including copy number variants, structural variants, new IRD genes and deep intronic variants, among others. Resolving a genetic diagnosis with thorough testing enables a more accurate diagnosis and more informed prognosis and should also provide information on inheritance patterns which may be of particular interest to patients of a child-bearing age. Given that IRDs are heritable conditions, genetic counselling may be offered to help inform family planning, carrier testing and prenatal screening. Additionally, a verified genetic diagnosis may enable access to appropriate clinical trials or approved medications that may be available for the condition.
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50
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Xiao F, Liu X, Lu Y, Wu B, Liu R, Liu B, Yan K, Chen H, Cheng G, Wang L, Ni Q, Li G, Zhang P, Peng X, Cao Y, Shen C, Wang H, Zhou W. Overdosage of HNF1B Gene Associated With Annular Pancreas Detected in Neonate Patients With 17q12 Duplication. Front Genet 2021; 12:615072. [PMID: 34025713 PMCID: PMC8138176 DOI: 10.3389/fgene.2021.615072] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 04/01/2021] [Indexed: 11/13/2022] Open
Abstract
The annular pancreas (AP) is a congenital anomaly of the pancreas that can cause acute abdominal pain and vomiting after birth. However, the genetic cause of AP is still unknown, and no study has reported AP in patients with 17q12 duplication. This study retrospectively analyzed the next-generation sequencing (NGS) data of individuals from January 2016 to June 2020 for 17q12 duplication. To identify the function of the key gene of HNF1B in the 17q12 duplication region, human HNF1B mRNA was microinjected into LiPan zebrafish transgenic embryos. A total of 19 cases of 17q12 duplication were confirmed. AP was diagnosed during exploratory laparotomy in four patients (21.1%). The other common features of 17q12 duplication included intellectual disability (50%), gross motor delay (50%), and seizures/epilepsy (31.58%). The ratio of the abnormal pancreas in zebrafish was significantly higher in the HNF1B overexpression models. In conclusion, we first reported AP in patients with duplication of the 17q12 region, resulting in the phenotype of 17q12 duplication syndrome. Furthermore, our zebrafish studies verified the role of the HNF1B gene in pancreatic development.
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Affiliation(s)
- Feifan Xiao
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Xiuyun Liu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Yulan Lu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Bingbing Wu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Renchao Liu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Bo Liu
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Kai Yan
- Division of Neonatology, Key Laboratory of Neonatal Diseases, Ministry of Health, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Huiyao Chen
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Guoqiang Cheng
- Division of Neonatology, Key Laboratory of Neonatal Diseases, Ministry of Health, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Laishuan Wang
- Division of Neonatology, Key Laboratory of Neonatal Diseases, Ministry of Health, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Qi Ni
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Gang Li
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Ping Zhang
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Xiaomin Peng
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Yun Cao
- Division of Neonatology, Key Laboratory of Neonatal Diseases, Ministry of Health, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Chun Shen
- Department of Pediatric Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Huijun Wang
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Wenhao Zhou
- Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Center for Molecular Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Division of Neonatology, Key Laboratory of Neonatal Diseases, Ministry of Health, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
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