European Journal of Human Genetics最新文献

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DDX3X-related neurodevelopmental disorder in males - presenting a new cohort of 19 males and a literature review. ddx3x相关的男性神经发育障碍-介绍19名男性的新队列和文献综述。
IF 3.7 2区 生物学
European Journal of Human Genetics Pub Date : 2025-03-31 DOI: 10.1038/s41431-025-01832-x
Milou G P Kennis, Dmitrijs Rots, Arjan Bouman, Charlotte W Ockeloen, Caroline Boelen, Carlo L M Marcelis, Bert B A de Vries, Mariet W Elting, Quinten Waisfisz, Mohnish Suri, Esperanza Font-Montgomery, Dawn S Peck, Deirdre E Donnelly, R Curtis Rogers, Ruth Richardson, Roseline Caumes, Boris Chaumette, Cécile Louveau, Suzanne C E H Sallevelt, Saskia M Maas, Jeroen J Smits, Mieke M van Haelst, Rebecca J Levy, Helen Stewart, Bart L Loeys, Rolph Pfundt, Tjitske Kleefstra, Lot Snijders Blok
{"title":"DDX3X-related neurodevelopmental disorder in males - presenting a new cohort of 19 males and a literature review.","authors":"Milou G P Kennis, Dmitrijs Rots, Arjan Bouman, Charlotte W Ockeloen, Caroline Boelen, Carlo L M Marcelis, Bert B A de Vries, Mariet W Elting, Quinten Waisfisz, Mohnish Suri, Esperanza Font-Montgomery, Dawn S Peck, Deirdre E Donnelly, R Curtis Rogers, Ruth Richardson, Roseline Caumes, Boris Chaumette, Cécile Louveau, Suzanne C E H Sallevelt, Saskia M Maas, Jeroen J Smits, Mieke M van Haelst, Rebecca J Levy, Helen Stewart, Bart L Loeys, Rolph Pfundt, Tjitske Kleefstra, Lot Snijders Blok","doi":"10.1038/s41431-025-01832-x","DOIUrl":"https://doi.org/10.1038/s41431-025-01832-x","url":null,"abstract":"<p><p>DDX3X-related neurodevelopmental disorder is one of the most common monogenic causes of intellectual disability in females, with currently >1000 females diagnosed worldwide. In contrast, reports on affected males with DDX3X variants are scarce. The limited knowledge on this X-linked disorder in males hinders the interpretation of hemizygous DDX3X variants in clinical practice. In this study, we present a new cohort of 19 affected males (from 17 unrelated families) with (possibly) disease-causing DDX3X variants, for whom we collected clinical and molecular data. Additionally, we reviewed the existing literature on 13 males with DDX3X variants. The phenotype in males is diverse, including intellectual disability, speech/language delays, behavioural challenges and structural brain abnormalities. The vast majority of males have missense variants, including two recurrent variants (p.(Arg351Gln) and p.(Arg488Cys)). No truncating variants have been reported, consistent with the presumed embryonic lethality of complete loss-of-function of DDX3X in males. In our novel cohort, 6/17 variants are de novo in the affected male and 3/17 variants are de novo in the mother. This study provides significant insights in the genetic and phenotypic spectrum of males with DDX3X variants, by presenting the data of a combined cohort (n = 32) of novel and published individuals. Our data show that variants in DDX3X can cause an X-linked neurodevelopmental disorder in males, with unaffected or mildly affected carrier females. These findings will aid the interpretation of hemizygous missense variants in DDX3X and can guide clinical management and counselling, in particular with regard to recurrence risks in the respective families.</p>","PeriodicalId":12016,"journal":{"name":"European Journal of Human Genetics","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143751830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Challenges in interpreting Mendelian randomization studies with a disease as the exposure: Using COVID-19 liability studies as an exemplar 以疾病为暴露的孟德尔随机化研究的解释挑战:以COVID-19责任研究为例
IF 3.7 2区 生物学
European Journal of Human Genetics Pub Date : 2025-03-31 DOI: 10.1038/s41431-025-01840-x
Siyu Chen, Ying Liang, Jacky Man Yuen Mo, Queenie Ho Yi Li, Baoting He, Shan Luo, Stephen Burgess, Shiu Lun Au Yeung
{"title":"Challenges in interpreting Mendelian randomization studies with a disease as the exposure: Using COVID-19 liability studies as an exemplar","authors":"Siyu Chen,&nbsp;Ying Liang,&nbsp;Jacky Man Yuen Mo,&nbsp;Queenie Ho Yi Li,&nbsp;Baoting He,&nbsp;Shan Luo,&nbsp;Stephen Burgess,&nbsp;Shiu Lun Au Yeung","doi":"10.1038/s41431-025-01840-x","DOIUrl":"10.1038/s41431-025-01840-x","url":null,"abstract":"Mendelian randomization (MR) studies using diseases as exposures are increasingly prevalent although any observed associations do not necessarily imply effect of diseases. To illustrate this challenge, we conducted a systematic review of MR studies focusing on COVID-19 consequence. We hypothesized if outcome genome-wide association studies (GWAS) were conducted before COVID-19 pandemic in late 2019, any observed associations in these studies were unlikely to be driven by COVID-19. We systematically searched PubMed, EMBASE, and MEDLINE for all MR studies published between 1 January 2019 and 20 May 2023. Inclusion criteria included MR studies which used COVID-19 as the exposure and designed to assess COVID-19’s impact on health outcomes. We extracted relevant information, such as result interpretation and relevance assumption assessment. This review was registered at PROSPERO (CRD42023421079). Amongst 57 included studies, 45 studies used outcome GWAS published prior to 2019 whilst the remaining studies likely used outcome GWAS containing data collected before 2019. Relevance assumption was assessed mainly by p values. A total of 35 studies showed an association of COVID-19 liability with health outcomes. Regardless of the results, 45 studies attributed these as evidence (or lack of evidence) of COVID-19 consequence. In MR studies using disease liability as exposure, relevance assumption should consider the prevalence of the disease in the outcome GWAS in the context of 2 sample Mendelian randomization study rather than p values/F-statistic alone. Even when these are verified, these studies likely suffered from pleiotropy, making corresponding interpretation as effect of disease challenging.","PeriodicalId":12016,"journal":{"name":"European Journal of Human Genetics","volume":"33 5","pages":"658-665"},"PeriodicalIF":3.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143751829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Novel biallelic COL25A1 variants broaden the clinical spectrum from congenital cranial dysinnervation disorders to fetal lethal phenotypes. 新的双拷贝 COL25A1 变异拓宽了从先天性颅神经支配障碍到胎儿致死表型的临床范围。
IF 3.7 2区 生物学
European Journal of Human Genetics Pub Date : 2025-03-29 DOI: 10.1038/s41431-025-01839-4
Frederike L Harms, Christian Müller, Fanny Kortüm, Maja Hempel, Malik Alawi, Maha S Zaki, Rasha M Elhossini, Mohamed S Abdel-Hamid, Lama AlAbdi, Fowzan S Alkuraya, Wesam Kurdi, Tristan Celse, Marta Spodenkiewicz, Tiphany Laurens, Klaus Dieterich, Sujatha Jagadeesh, Sandesh Salvankar, Katta M Girisha, Kerstin Kutsche
{"title":"Novel biallelic COL25A1 variants broaden the clinical spectrum from congenital cranial dysinnervation disorders to fetal lethal phenotypes.","authors":"Frederike L Harms, Christian Müller, Fanny Kortüm, Maja Hempel, Malik Alawi, Maha S Zaki, Rasha M Elhossini, Mohamed S Abdel-Hamid, Lama AlAbdi, Fowzan S Alkuraya, Wesam Kurdi, Tristan Celse, Marta Spodenkiewicz, Tiphany Laurens, Klaus Dieterich, Sujatha Jagadeesh, Sandesh Salvankar, Katta M Girisha, Kerstin Kutsche","doi":"10.1038/s41431-025-01839-4","DOIUrl":"https://doi.org/10.1038/s41431-025-01839-4","url":null,"abstract":"<p><p>Biallelic variants in COL25A1 have been associated with isolated congenital cranial dysinnervation disorders (CCDDs) and arthrogryposis multiplex congenital (AMC) with or without CCDD. COL25A1 encodes collagen XXV that belongs to the subfamily of membrane-associated collagens with interrupted triple helices. COL25A1 contains four non-collagenous and three collagenous domains. Three alternatively spliced COL25A1 transcript variants are known. In mice, Col25a1 is required for intramuscular motor innervation and cranial motor neuron development. We report seven subjects with novel biallelic COL25A1 pathogenic variants, including three AMC-affected individuals, one of whom died in infancy, and four unrelated fetuses. We expand the associated phenotypic spectrum as fetuses showed lethal phenotypes including reduced or no movement, contractures, and hydrops in three and growth retardation and skeletal abnormalities in one. The molecular spectrum includes two microdeletions encompassing several 5' or 3' exons, two missense, one nonsense, one frameshift, and one variant affecting splicing. In fibroblasts of the subject who was compound heterozygous for the c.367G > C and c.1198G > T variants, we identified skipping of exon 3 in COL25A1 mRNAs due to the G-to-C change. These aberrantly spliced transcripts were subject to nonsense-mediated mRNA decay. Analysis of transcriptome sequencing data from primary human fibroblasts without COL25A1 pathogenic variants revealed novel COL25A1 exon-exon junctions and 13 not previously annotated alternatively spliced in-frame exons. We hypothesized that interindividual variation in the splicing of COL25A1 exons in different tissues may underlie the variable phenotypes in the affected individuals.</p>","PeriodicalId":12016,"journal":{"name":"European Journal of Human Genetics","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143742727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring individuals’ experiences with self-reported unmet need for genetic testing 探索自我报告的未满足基因检测需求的个人经历。
IF 3.7 2区 生物学
European Journal of Human Genetics Pub Date : 2025-03-27 DOI: 10.1038/s41431-025-01838-5
Kennedy Borle, Larry D. Lynd, Jehannine Austin
{"title":"Exploring individuals’ experiences with self-reported unmet need for genetic testing","authors":"Kennedy Borle,&nbsp;Larry D. Lynd,&nbsp;Jehannine Austin","doi":"10.1038/s41431-025-01838-5","DOIUrl":"10.1038/s41431-025-01838-5","url":null,"abstract":"In practice, healthcare systems and insurers determine that there is “need” for genetic testing when there is potential for clinical utility. However, it is not currently known how the public understands the need for genetic testing and if this aligns with clinical utility. We recruited participants in Canada through a survey distributed through a market research company (Leger Opinion Panel). Participants who self-reported the need for genetic testing were then purposively sampled to complete a semi-structured virtual interview. We used an interpretive description approach and reflexive thematic analysis. We completed 19 interviews and found that participants’ self-identified need for genetic testing was informed by their experiences with genetic information and the perceptions that genetic information is actionable (clinical utility) and has personal meaning (personal utility). Most participants would not be eligible for funded testing based on their personal and family history, however, they had unmet informational and psychological needs, indicating unmet need for genetic counseling. The public understanding of the need for genetic testing is complex and varied. Participants identified many benefits resulting from genetic testing which are not reflected in how need is operationalized in reimbursement decisions, however unmet expectations for testing contributed to medical distrust and dissatisfaction.","PeriodicalId":12016,"journal":{"name":"European Journal of Human Genetics","volume":"33 5","pages":"649-657"},"PeriodicalIF":3.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143729467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A hypomorphic FLVCR2 variant resulting in moderate transport deficiency causes hydranencephaly syndrome with brain calcifications. 一种导致中度运输缺陷的低形态FLVCR2变异可导致无脑积水综合征伴脑钙化。
IF 3.7 2区 生物学
European Journal of Human Genetics Pub Date : 2025-03-25 DOI: 10.1038/s41431-025-01836-7
Marcello Scala, Nancy C P Leong, Thanh Nha Uyen Le, Yu Zhang, Yichang Wu, Mariasavina Severino, Francesca Madia, Mohammad Sadegh Shams Nosrati, Alireza Dostmohammadi, Valeria Capra, Dario Paladini, Francesca Buffelli, Ezio Fulcheri, Serena Cappato, Ludovica Menta, Renata Bocciardi, Federico Zara, Long N Nguyen
{"title":"A hypomorphic FLVCR2 variant resulting in moderate transport deficiency causes hydranencephaly syndrome with brain calcifications.","authors":"Marcello Scala, Nancy C P Leong, Thanh Nha Uyen Le, Yu Zhang, Yichang Wu, Mariasavina Severino, Francesca Madia, Mohammad Sadegh Shams Nosrati, Alireza Dostmohammadi, Valeria Capra, Dario Paladini, Francesca Buffelli, Ezio Fulcheri, Serena Cappato, Ludovica Menta, Renata Bocciardi, Federico Zara, Long N Nguyen","doi":"10.1038/s41431-025-01836-7","DOIUrl":"https://doi.org/10.1038/s41431-025-01836-7","url":null,"abstract":"<p><p>FLVCR2 is a highly conserved member of the major facilitator superfamily (MFS), the largest superfamily of solute carriers that are involved in the transport of small molecules across lipid bilayers. The loss of the murine ortholog Mfsd7c, an endothelial transporter in brain blood vessels, causes brain angiogenic growth deficiency and lethality. Recessive FLVCR2 variants cause proliferative vasculopathy and hydranencephaly-hydrocephaly syndrome (PVHH), also known as Fowler syndrome. This often-lethal condition features microcephaly, skeletal deformities, and severe cerebrovascular defects. Although a number of cases have been reported, very limited evidence of the pathogenicity of FLVCR2 variants is available. In this study, we thoroughly investigated a new fetal case of Fowler syndrome. Through exome sequencing, we identified two compound heterozygous FLVCR2 variants: the maternal c.1124+3_1124+6del and the paternal p.(Arg492Trp). The effects of the c.1124+3_1124+6del variant were investigated through a minigene assay, which showed impaired splicing of the exon 5 of FLVCR2. To characterize the impact of the p.(Arg492Trp) substitution, we performed protein modeling using Rosetta and DynaMut2, that showed a highly destabilizing effect. Then, based on the very recent evidence that choline is a major FLVCR2 ligand, we performed a radiolabeled-choline or ethanolamine transport assays in HEK 293 cells and found that the p.(Arg492Trp) variant causes a 50-60% reduction of FLVCR2 transport activity, resulting in a net activity of 25-30%. Our findings suggest that FLVCR2 deficiency may be sufficient to cause PVHH even in the absence of a complete loss of transport activity, possibly involving extragenetic factors in the pathophysiology of this complex condition.</p>","PeriodicalId":12016,"journal":{"name":"European Journal of Human Genetics","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143709260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Novel variants in FOXI3 gene confirm its implication in Oculo-Auriculo-Vertebral spectrum fox3基因的新变异证实了其在眼-耳-椎谱中的意义。
IF 3.7 2区 生物学
European Journal of Human Genetics Pub Date : 2025-03-24 DOI: 10.1038/s41431-025-01837-6
Angèle Sequeira, Thomas Sagardoy, Laetitia Bourgeade, Didier Lacombe, Elizabeth Sarrazin, Annick Toutain, Caroline Rooryck
{"title":"Novel variants in FOXI3 gene confirm its implication in Oculo-Auriculo-Vertebral spectrum","authors":"Angèle Sequeira,&nbsp;Thomas Sagardoy,&nbsp;Laetitia Bourgeade,&nbsp;Didier Lacombe,&nbsp;Elizabeth Sarrazin,&nbsp;Annick Toutain,&nbsp;Caroline Rooryck","doi":"10.1038/s41431-025-01837-6","DOIUrl":"10.1038/s41431-025-01837-6","url":null,"abstract":"Molecular bases of the clinically heterogenous Oculo-Auriculo-Vertebral Spectrum or Craniofacial Microsomia remain largely unknown. Although genetic diagnosis is established in less than 10% of the patients, variants in the FOXI3 gene are the most recurrent genetic cause. We studied a large family with 6 affected individuals on 4 generations showing an autosomal dominant transmission of Oculo-Auriculo-Vertebral Spectrum with incomplete penetrance. The genome sequencing strategy allowed the identification of a new likely pathogenic missense variant located within the Nuclear Localization Signal of FOXI3 and affecting its subcellular localization. Moreover, we described 3 additional rare FOXI3 variants identified in 3 other patients from a cohort of 251 patients with Oculo-Auriculo-Vertebral Spectrum. These variants were classified as Variants of Unknown Significance. In conclusion, this study confirms FOXI3 implication in the Oculo-Auriculo-Vertebral Spectrum and the importance of Nuclear Localization Signal integrity. Genotype-phenotype correlations and putative modifier haplotype are discussed.","PeriodicalId":12016,"journal":{"name":"European Journal of Human Genetics","volume":"33 5","pages":"683-687"},"PeriodicalIF":3.7,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143700059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring the potential usefulness of the GCOS-16 for expanded applications 探索GCOS-16对扩展应用程序的潜在用处。
IF 3.7 2区 生物学
European Journal of Human Genetics Pub Date : 2025-03-22 DOI: 10.1038/s41431-025-01830-z
Yvette Kuo, Kennedy Borle, Jehannine Austin
{"title":"Exploring the potential usefulness of the GCOS-16 for expanded applications","authors":"Yvette Kuo,&nbsp;Kennedy Borle,&nbsp;Jehannine Austin","doi":"10.1038/s41431-025-01830-z","DOIUrl":"10.1038/s41431-025-01830-z","url":null,"abstract":"The Genetic Counselling Outcome Scale-24 (GCOS-24) measures empowerment reliably in the context of genetic services, but its potential utility is constrained by some of its features. Using Rasch Measurement Theory, the GCOS-16 was developed: eight items were removed and the Likert scale collapsed from seven response options to three. The GCOS-16 has improved performance, and potential for usefulness beyond its original design i.e., identifying/triaging patients who may benefit most, and comparing genetic counseling (GC) to non-GC interventions. In this study, using the GCOS-24 data collected from a psychiatric GC clinic, we aimed to use a statistical method to determine the minimal clinically important difference (MCID) of the GCOS-16, and to examine whether the GCOS-16, or any individual items or subdomains could be used to identify patients who would most benefit from GC. The GCOS-24 data (24-items, 7-point Likert scale) from 307 charts were transformed into the GCOS-16 scoring (16 items, 3-point Likert scale). The GCOS-16 scores increased from pre- to post-GC (p &lt; 0.001, d = 0.935), and the MCID was determined to be an increase of 2.5 points. There were significant differences between pre- to post-GC for all items and subdomains except for item #6. Patients receiving in-person GC were more likely to meet the MCID than those receiving service by telephone or telehealth (p &lt; 0.001). Our data demonstrate that the GCOS-16 is sensitive to change in empowerment without ceiling effects – this could be used to triage patients for GC, and to compare GC to non-GC interventions.","PeriodicalId":12016,"journal":{"name":"European Journal of Human Genetics","volume":"33 5","pages":"642-648"},"PeriodicalIF":3.7,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143691432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determinants of diagnostic yield in a multi-ethnic Asian inherited retinal disease cohort. 亚洲多种族遗传性视网膜疾病队列诊断率的决定因素
IF 3.7 2区 生物学
European Journal of Human Genetics Pub Date : 2025-03-21 DOI: 10.1038/s41431-025-01833-w
Jane Andrea Lieviant, Choi Mun Chan, Yasmin Bylstra, Kanika Jain, Jing Xian Teo, Wan Wan Lim, Sylvia Kam, Tang Wei Chao, Nellie Chai Bin Siew, Sonia Davila, Eranga Nishanthie Vithana, Ranjana Sanjay Mathur, Tien-En Tan, Patrick Tan, Saumya S Jamuar, Beau James Fenner, Weng Khong Lim
{"title":"Determinants of diagnostic yield in a multi-ethnic Asian inherited retinal disease cohort.","authors":"Jane Andrea Lieviant, Choi Mun Chan, Yasmin Bylstra, Kanika Jain, Jing Xian Teo, Wan Wan Lim, Sylvia Kam, Tang Wei Chao, Nellie Chai Bin Siew, Sonia Davila, Eranga Nishanthie Vithana, Ranjana Sanjay Mathur, Tien-En Tan, Patrick Tan, Saumya S Jamuar, Beau James Fenner, Weng Khong Lim","doi":"10.1038/s41431-025-01833-w","DOIUrl":"10.1038/s41431-025-01833-w","url":null,"abstract":"<p><p>As the discovery of new genes causing inherited retinal disease (IRD) has plateaued, we look to other factors which could be used to maximize diagnostic yield. We analyzed whole-exome sequencing (WES) data from 506 IRD probands, focusing on the interplay between diagnostic yield, age of symptom onset or diagnosis, family history, and initial clinical diagnosis. The cohort's overall diagnostic yield was 49.2%. Diagnostic yield was negatively correlated with the age of symptom onset and positively correlated with the number of affected family members. Diseases with distinctive clinical presentations such as Bietti crystalline dystrophy (BCD) or Leber congenital amaurosis (LCA) were more reliably diagnosed than more common and heterogeneous diseases like retinitis pigmentosa (RP) and cone-rod dystrophy (CRD). Recurrent genes and variants in this Chinese-majority cohort resemble those found in Chinese cohort studies but differ from populations of European descent, with implications for the design and prioritization of gene therapies. These insights may help optimize the diagnostic utility of genetic testing for IRDs, enhance the delivery of genetic counseling for patients, and guide the development of more inclusive targeted therapies.</p>","PeriodicalId":12016,"journal":{"name":"European Journal of Human Genetics","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143669370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
XRCC4-related microcephalic primordial dwarfism: description of a clinical series of 7 cases, phenotype expansion and new diagnostic approaches. xrcc4相关的小头型原始侏儒症:7例临床系列的描述,表型扩展和新的诊断方法
IF 3.7 2区 生物学
European Journal of Human Genetics Pub Date : 2025-03-20 DOI: 10.1038/s41431-025-01821-0
Silvestre Cuinat, Nicolas Chatron, Florence Petit, Perrine Brunelle, Etienne Dincuff, Marion Aubert Mucca, Eric Bieth, Ariane Schmetz, Harald Rieder, Bernd Wollnik, Silke Kaulfuß, Gökhan Yigit, Colina McKeown, Tim Savage, Meghan R Mulligan, Louise S Bicknell, Nicole Corsten-Janssen, Patrick Edery, Gaetan Lesca, Jean-Pierre de Villartay, Audrey Putoux
{"title":"XRCC4-related microcephalic primordial dwarfism: description of a clinical series of 7 cases, phenotype expansion and new diagnostic approaches.","authors":"Silvestre Cuinat, Nicolas Chatron, Florence Petit, Perrine Brunelle, Etienne Dincuff, Marion Aubert Mucca, Eric Bieth, Ariane Schmetz, Harald Rieder, Bernd Wollnik, Silke Kaulfuß, Gökhan Yigit, Colina McKeown, Tim Savage, Meghan R Mulligan, Louise S Bicknell, Nicole Corsten-Janssen, Patrick Edery, Gaetan Lesca, Jean-Pierre de Villartay, Audrey Putoux","doi":"10.1038/s41431-025-01821-0","DOIUrl":"https://doi.org/10.1038/s41431-025-01821-0","url":null,"abstract":"<p><p>The non-homologous end joining (NHEJ) pathway is essential to repair DNA double-strand breaks. XRCC4 acts as a stabilizer of the DNA ligase LIG4 in the NHEJ process. In humans, XRCC4 pathogenic variants are responsible for a microcephalic primordial dwarfism syndrome (MPD). Currently, 17 patients have been reported with XRCC4-related MPD and we report 7 new patients from 6 different families, including one fetus. The patients present with short stature, severe microcephaly, neurodevelopmental disorder and additional features, such as transient increase in nuchal translucency, congenital glaucoma, thumb anomalies, hepatic steatosis, seizures, essential tremor and oligodontia which have not been previously described. Hyper- and hypopigmented skin macules, dermatofibrosarcoma, mandibular osteoid osteoma and pancytopenia are also new features, reminiscent of cancer susceptibility syndromes. Functional studies were performed on two patients carrying the known pathogenic p.(Trp43Arg) variant in homozygous state, using a fast, cost-effective and non-invasive approach on PBMCs: (1) Survival analyses after ionizing radiation confirm important radiosensitivity. (2) Flow cytometry showed the lack of TCR-Va7+ T-lymphocytes, suggesting recombination defect of V(D)J coding segments. (3) This was confirmed by multiplexed RT-PCR (PROMIDISα biomarker), analyzing the diversity of V(D)J coding segments in a subset of the TCRα repertoire. We therefore extend the phenotype of XRCC4-related MPD and suggest a combination of three functional assays, based on radiosensitivity and V(D)J recombination defect, to improve the interpretation of XRCC4 variants in fast, cost-effective and non-invasive manner. These findings will improve the diagnosis, genetic counselling, follow-up and management of these patients.</p>","PeriodicalId":12016,"journal":{"name":"European Journal of Human Genetics","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143669375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Heterozygous CELF4 variants in the N-term region crucial for the RNA-binding activity lead to neurodevelopmental disorder and obesity. 对于rna结合活性至关重要的n term区域的杂合CELF4变异导致神经发育障碍和肥胖。
IF 3.7 2区 生物学
European Journal of Human Genetics Pub Date : 2025-03-19 DOI: 10.1038/s41431-025-01809-w
Ange-Line Bruel, Anneke T Vulto-vanSilfhout, Frédéric Bilan, Gwenaël Le Guyader, Brigitte Gilbert-Dussardier, Xavier Le Guillou, Sophie Rondeau, Marlène Rio, Kristen N Lee, Adelyn Beil, Mohnish Suri, François Guerin, Valentin Ruault, Alice Goldenberg, François Lecoquierre, Nicole Bertsch, Rhonda Anderson, Xiao-Ru Yang, Micheil Inness, Emi Rikeros-Orozco, Maria Palomares-Bralo, Jennifer Cassady Hayek, Jennifer Cech, Ankita Jhuraney, Runjun D Kumar, Saadet Mercimek-Andrews, Anastasia Ambrose, Erin N Wakeling, Ingrid M Wentzensen, Erin Torti, Catherine Gooch, Laurence Faivre, Christophe Philippe, Yannis Duffourd, Antonio Vitobello, Christel Thauvin-Robinet
{"title":"Heterozygous CELF4 variants in the N-term region crucial for the RNA-binding activity lead to neurodevelopmental disorder and obesity.","authors":"Ange-Line Bruel, Anneke T Vulto-vanSilfhout, Frédéric Bilan, Gwenaël Le Guyader, Brigitte Gilbert-Dussardier, Xavier Le Guillou, Sophie Rondeau, Marlène Rio, Kristen N Lee, Adelyn Beil, Mohnish Suri, François Guerin, Valentin Ruault, Alice Goldenberg, François Lecoquierre, Nicole Bertsch, Rhonda Anderson, Xiao-Ru Yang, Micheil Inness, Emi Rikeros-Orozco, Maria Palomares-Bralo, Jennifer Cassady Hayek, Jennifer Cech, Ankita Jhuraney, Runjun D Kumar, Saadet Mercimek-Andrews, Anastasia Ambrose, Erin N Wakeling, Ingrid M Wentzensen, Erin Torti, Catherine Gooch, Laurence Faivre, Christophe Philippe, Yannis Duffourd, Antonio Vitobello, Christel Thauvin-Robinet","doi":"10.1038/s41431-025-01809-w","DOIUrl":"https://doi.org/10.1038/s41431-025-01809-w","url":null,"abstract":"<p><p>RNA-binding proteins play a key role in post-transcriptional events, such as mRNA splicing, transport, stability, translation and decay. Dysregulation of RNA life can have dramatic consequences. CELF RNA-binding proteins appear to be essential during embryo development. In this study, we identified 15 patients with heterozygous missense or loss-of-function variants in the CELF4 gene by exome or genome sequencing. All variants affecting the N-terminus of the protein are essential and sufficient for the RNA-binding and splicing activity or RRM domains. Most patients presented with neurodevelopmental disorders including global developmental delay/intellectual disability (11/14), seizures (9/15) and overweight/obesity (10/14) that began in childhood. Clinical features are similar to the reported celf4-mouse mutant phenotype. This study highlights the essential role of CELF4 in development and its involvement as a novel etiology of neurodevelopmental disorders with obesity.</p>","PeriodicalId":12016,"journal":{"name":"European Journal of Human Genetics","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143663117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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