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Teixeira MD, Pereira AT, Marques MV, Saraiva JM, de Macedo AF. Eating behaviors, body image, perfectionism, and self-esteem in a sample of Portuguese girls. Braz J Psychiatry 2016; 38:135-40. [PMID: 26870911 PMCID: PMC7111361 DOI: 10.1590/1516-4446-2015-1723] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 07/15/2015] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Eating disorders are an increasingly prevalent health problem among adolescent girls. It is well known that biological, psychosocial, and family-related factors interact in the development of this group of disorders. However, the mechanisms underlying the interaction between these variables are still poorly understood, especially in Portuguese adolescents. The aim of this study was to investigate the relationship between eating behaviors, body dissatisfaction, self-esteem, and perfectionism in a sample of Portuguese girls. METHOD A community sample of 575 Portuguese girls attending secondary school, answered self-report questionnaires including data on weight, height, and the Portuguese versions of the Contour Figures Rating Scale, the Child and Adolescent Perfectionism Scale, the Children Eating Attitudes Test, and the Rosenberg Self-Esteem Scale. SPSS version 20.0 for Windows was used for statistical analyses. RESULTS High scores in the Children Eating Attitudes Test were associated with significantly higher levels of body dissatisfaction (r = 0.339), socially prescribed perfectionism (r = 0.175), self-oriented perfectionism (r = 0.211), and low self-esteem (r = -0.292) (all p < 0.001). Self-oriented perfectionism partially mediated the relation between body dissatisfaction and disordered eating behaviors. CONCLUSION In this sample, dysfunctional eating behaviors appeared to correlate strongly with body dissatisfaction, low self-esteem, and perfectionism in girls. These themes should be addressed among female adolescents in the community.
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Affiliation(s)
- Maria D. Teixeira
- Clínica Universitária de Pediatria, Faculdade de Medicina, Universidade de Coimbra, Portugal
| | - Ana T. Pereira
- Departamento de Psicologia, Faculdade de Medicina, Universidade de Coimbra, Portugal
| | - Mariana V. Marques
- Departamento de Psicologia, Faculdade de Medicina, Universidade de Coimbra, Portugal
| | - Jorge M. Saraiva
- Clínica Universitária de Pediatria, Faculdade de Medicina, Universidade de Coimbra, Portugal
| | - António F. de Macedo
- Departamento de Psicologia, Faculdade de Medicina, Universidade de Coimbra, Portugal
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Sousa SB, Ramos F, Garcia P, Pais RP, Paiva C, Beales PL, Moore GE, Saraiva JM, Hennekam RCM. Intellectual disability, coarse face, relative macrocephaly, and cerebellar hypotrophy in two sisters. Am J Med Genet A 2015; 164A:10-4. [PMID: 24501761 DOI: 10.1002/ajmg.a.36235] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We report on two Portuguese sisters with a very similar phenotype characterized by severe intellectual disability, absent speech, relative macrocephaly, coarse face, cerebellar hypotrophy, and severe ataxia. Additional common features include increased thickness of the cranial vault, delayed dental eruption, talipes equino-varus, clinodactyly, and camptodactyly of the fifth finger. The older sister has retinal dystrophy and the younger sister has short stature. Their parents are consanguineous. We suggest this condition constitutes a previously unreported autosomal recessive entity.
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Thomas AC, Williams H, Setó-Salvia N, Bacchelli C, Jenkins D, O'Sullivan M, Mengrelis K, Ishida M, Ocaka L, Chanudet E, James C, Lescai F, Anderson G, Morrogh D, Ryten M, Duncan AJ, Pai YJ, Saraiva JM, Ramos F, Farren B, Saunders D, Vernay B, Gissen P, Straatmaan-Iwanowska A, Baas F, Wood NW, Hersheson J, Houlden H, Hurst J, Scott R, Bitner-Glindzicz M, Moore GE, Sousa SB, Stanier P. Mutations in SNX14 cause a distinctive autosomal-recessive cerebellar ataxia and intellectual disability syndrome. Am J Hum Genet 2014; 95:611-21. [PMID: 25439728 DOI: 10.1016/j.ajhg.2014.10.007] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 10/13/2014] [Indexed: 12/30/2022] Open
Abstract
Intellectual disability and cerebellar atrophy occur together in a large number of genetic conditions and are frequently associated with microcephaly and/or epilepsy. Here we report the identification of causal mutations in Sorting Nexin 14 (SNX14) found in seven affected individuals from three unrelated consanguineous families who presented with recessively inherited moderate-severe intellectual disability, cerebellar ataxia, early-onset cerebellar atrophy, sensorineural hearing loss, and the distinctive association of progressively coarsening facial features, relative macrocephaly, and the absence of seizures. We used homozygosity mapping and whole-exome sequencing to identify a homozygous nonsense mutation and an in-frame multiexon deletion in two families. A homozygous splice site mutation was identified by Sanger sequencing of SNX14 in a third family, selected purely by phenotypic similarity. This discovery confirms that these characteristic features represent a distinct and recognizable syndrome. SNX14 encodes a cellular protein containing Phox (PX) and regulator of G protein signaling (RGS) domains. Weighted gene coexpression network analysis predicts that SNX14 is highly coexpressed with genes involved in cellular protein metabolism and vesicle-mediated transport. All three mutations either directly affected the PX domain or diminished SNX14 levels, implicating a loss of normal cellular function. This manifested as increased cytoplasmic vacuolation as observed in cultured fibroblasts. Our findings indicate an essential role for SNX14 in neural development and function, particularly in development and maturation of the cerebellum.
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Affiliation(s)
- Anna C Thomas
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK
| | - Hywel Williams
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK; Centre for Translational Omics-GOSgene, UCL Institute of Child Health, London WC1N 1EH, UK
| | - Núria Setó-Salvia
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK
| | - Chiara Bacchelli
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK; Centre for Translational Omics-GOSgene, UCL Institute of Child Health, London WC1N 1EH, UK
| | - Dagan Jenkins
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK
| | - Mary O'Sullivan
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK
| | | | - Miho Ishida
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK
| | - Louise Ocaka
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK; Centre for Translational Omics-GOSgene, UCL Institute of Child Health, London WC1N 1EH, UK
| | - Estelle Chanudet
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK; Centre for Translational Omics-GOSgene, UCL Institute of Child Health, London WC1N 1EH, UK
| | - Chela James
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK; Centre for Translational Omics-GOSgene, UCL Institute of Child Health, London WC1N 1EH, UK
| | - Francesco Lescai
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK; Centre for Translational Omics-GOSgene, UCL Institute of Child Health, London WC1N 1EH, UK; Department of Biomedicine, Aarhus University, 8000 Aarhus, Denmark
| | - Glenn Anderson
- Histopathology Department, Great Ormond Street Hospital, London WC1N 3JH, UK
| | - Deborah Morrogh
- NE Thames Regional Genetics Laboratory Service, London WC1N 3BH, UK
| | - Mina Ryten
- UCL Institute of Neurology, London WC1N 3BG, UK; Department of Clinical Genetics, Guy's Hospital, London SE1 9RT, UK
| | - Andrew J Duncan
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK
| | - Yun Jin Pai
- Developmental Biology and Cancer, UCL Institute of Child Health, London WC1N 1EH, UK
| | - Jorge M Saraiva
- Serviço de Genética Médica, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, 3000-602 Coimbra, Portugal; University Clinic of Pediatrics, Faculty of Medicine, University of Coimbra, 3000-602 Coimbra, Portugal
| | - Fabiana Ramos
- Serviço de Genética Médica, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, 3000-602 Coimbra, Portugal
| | - Bernadette Farren
- Clinical Genetics, Great Ormond Street Hospital, London WC1N 3JH, UK
| | - Dawn Saunders
- Radiology, Great Ormond Street Hospital, London WC1N 3JH, UK
| | - Bertrand Vernay
- Developmental Biology and Cancer, UCL Institute of Child Health, London WC1N 1EH, UK
| | - Paul Gissen
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK
| | | | - Frank Baas
- Department of Genome Analysis, Academic Medical Center, University of Amsterdam, 1105AZ Amsterdam, the Netherlands
| | | | | | | | - Jane Hurst
- Clinical Genetics, Great Ormond Street Hospital, London WC1N 3JH, UK
| | - Richard Scott
- Clinical Genetics, Great Ormond Street Hospital, London WC1N 3JH, UK
| | - Maria Bitner-Glindzicz
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK; Clinical Genetics, Great Ormond Street Hospital, London WC1N 3JH, UK
| | - Gudrun E Moore
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK
| | - Sérgio B Sousa
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK; Serviço de Genética Médica, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, 3000-602 Coimbra, Portugal.
| | - Philip Stanier
- Genetics and Genomic Medicine, UCL Institute of Child Health, London WC1N 1EH, UK.
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Beleza-Meireles A, Clayton-Smith J, Saraiva JM, Tassabehji M. Oculo-auriculo-vertebral spectrum: a review of the literature and genetic update. J Med Genet 2014; 51:635-45. [DOI: 10.1136/jmedgenet-2014-102476] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Saraiva JM. [Regarding the article "Adults with Down syndrome: characterization of a Portuguese sample"]. ACTA MEDICA PORT 2014; 27:281. [PMID: 25017334 DOI: 10.20344/amp.5569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 06/09/2014] [Indexed: 11/20/2022]
Abstract
<strong>Keywords</strong>: Adult; Down Syndrome; Portugal.
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Affiliation(s)
- Jorge M Saraiva
- Presidente da Direção. Colégio da Especialidade de Genética Médica. Ordem dos Médicos. Lisboa. Portugal Serviço de Genética Médica. Hospital Pediátrico. Centro Hospitalar e Universitário de Coimbra. Coimbra. Portugal. Clínica Universitária de Pediatria. Faculdade de Medicina. Universidade de Coimbra. Portugal
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Sousa SB, Jenkins D, Chanudet E, Tasseva G, Ishida M, Anderson G, Docker J, Ryten M, Sa J, Saraiva JM, Barnicoat A, Scott R, Calder A, Wattanasirichaigoon D, Chrzanowska K, Simandlová M, Van Maldergem L, Stanier P, Beales PL, Vance JE, Moore GE. Gain-of-function mutations in the phosphatidylserine synthase 1 (PTDSS1) gene cause Lenz-Majewski syndrome. Nat Genet 2014; 46:70-6. [PMID: 24241535 DOI: 10.1038/ng.2829] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 10/23/2013] [Indexed: 12/21/2022]
Abstract
Lenz-Majewski syndrome (LMS) is a syndrome of intellectual disability and multiple congenital anomalies that features generalized craniotubular hyperostosis. By using whole-exome sequencing and selecting variants consistent with the predicted dominant de novo etiology of LMS, we identified causative heterozygous missense mutations in PTDSS1, which encodes phosphatidylserine synthase 1 (PSS1). PSS1 is one of two enzymes involved in the production of phosphatidylserine. Phosphatidylserine synthesis was increased in intact fibroblasts from affected individuals, and end-product inhibition of PSS1 by phosphatidylserine was markedly reduced. Therefore, these mutations cause a gain-of-function effect associated with regulatory dysfunction of PSS1. We have identified LMS as the first human disease, to our knowledge, caused by disrupted phosphatidylserine metabolism. Our results point to an unexplored link between phosphatidylserine synthesis and bone metabolism.
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Affiliation(s)
- Sérgio B Sousa
- 1] Clinical and Molecular Genetics Unit, University College London (UCL) Institute of Child Health, London, UK. [2] Serviço de Genética Médica, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Dagan Jenkins
- 1] Molecular Medicine Unit, UCL Institute of Child Health, London, UK. [2]
| | - Estelle Chanudet
- 1] Centre for Translational Genomics-GOSgene, UCL Institute of Child Health, London, UK. [2]
| | - Guergana Tasseva
- 1] Group on the Molecular and Cell Biology of Lipids, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada. [2]
| | - Miho Ishida
- Clinical and Molecular Genetics Unit, University College London (UCL) Institute of Child Health, London, UK
| | - Glenn Anderson
- Histopathology Department, Great Ormond Street Hospital for Children, London, UK
| | - James Docker
- Neural Development Unit, UCL Institute of Child Health, London, UK
| | - Mina Ryten
- 1] Reta Lila Weston Institute, UCL Institute of Neurology, London, UK. [2] Department of Molecular Neuroscience, UCL Institute of Neurology, London, UK
| | - Joaquim Sa
- Serviço de Genética Médica, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Jorge M Saraiva
- 1] Serviço de Genética Médica, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal. [2] University Clinic of Pediatrics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Angela Barnicoat
- Clinical Genetics Department, Great Ormond Street Hospital, London, UK
| | - Richard Scott
- Clinical Genetics Department, Great Ormond Street Hospital, London, UK
| | - Alistair Calder
- Radiology Department, Great Ormond Street Hospital, London, UK
| | | | - Krystyna Chrzanowska
- Department of Medical Genetics, Children's Memorial Health Institute, Warsaw, Poland
| | - Martina Simandlová
- Department of Biology and Medical Genetics, University Hospital Motol and Second Faculty of Medicine, Prague, Czech Republic
| | - Lionel Van Maldergem
- 1] Centre de Génétique Humaine, Université de Franche-Comté, Besançon, France. [2] Cutis Laxa Study Group, University of Franche-Comté, Besancon, France
| | - Philip Stanier
- Neural Development Unit, UCL Institute of Child Health, London, UK
| | - Philip L Beales
- 1] Molecular Medicine Unit, UCL Institute of Child Health, London, UK. [2] Centre for Translational Genomics-GOSgene, UCL Institute of Child Health, London, UK
| | - Jean E Vance
- Group on the Molecular and Cell Biology of Lipids, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Gudrun E Moore
- Clinical and Molecular Genetics Unit, University College London (UCL) Institute of Child Health, London, UK
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Sousa SB, Venâncio M, Chanudet E, Palmer R, Ramos L, Beales PL, Moore GE, Saraiva JM, Hennekam RC. Intellectual disability, unusual facial morphology and hand anomalies in sibs. Am J Med Genet A 2013; 161A:2401-6. [PMID: 23949889 DOI: 10.1002/ajmg.a.36124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 06/10/2013] [Indexed: 11/08/2022]
Abstract
Here we report on a Portuguese family with three sisters who shared moderate intellectual disability, unusual facial morphology (short palpebral fissures; broad nasal tip; thin upper and lower vermillion; broad and pointed chin) and hand anomalies in two of them (short left third and fifth right metacarpals in one case; marked syndactyly between the third and fourth fingers in another). One of the sisters had microcephaly and short stature, and the other two were obese. Obesity and somewhat similar facial features were also present in the otherwise healthy mother. Despite the overlap with several known syndromes (Albright osteodystrophy; Filippi syndrome; Rubinstein-Taybi syndrome; microdeletion 2q37), we suggest this condition is previously unreported, and most likely displays an autosomal recessive pattern of inheritance. © 2013 Wiley Periodicals, Inc.
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Affiliation(s)
- Sérgio B Sousa
- Serviço de Genética Médica, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal; Clinical and Molecular Genetics Unit, UCL Institute of Child Health, London, UK
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Beleza-Meireles A, Matoso E, Ramos L, Melo JB, Carreira IM, Silva ED, Saraiva JM. Cryptic 7q36.2q36.3 deletion causes multiple congenital eye anomalies and craniofacial dysmorphism. Am J Med Genet A 2013; 161A:589-93. [DOI: 10.1002/ajmg.a.35713] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Accepted: 09/16/2012] [Indexed: 11/11/2022]
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Morimoto M, Yu Z, Stenzel P, Clewing JM, Najafian B, Mayfield C, Hendson G, Weinkauf JG, Gormley AK, Parham DM, Ponniah U, André JL, Asakura Y, Basiratnia M, Bogdanović R, Bokenkamp A, Bonneau D, Buck A, Charrow J, Cochat P, Cordeiro I, Deschenes G, Fenkçi MS, Frange P, Fründ S, Fryssira H, Guillen-Navarro E, Keller K, Kirmani S, Kobelka C, Lamfers P, Levtchenko E, Lewis DB, Massella L, McLeod DR, Milford DV, Nobili F, Saraiva JM, Semerci CN, Shoemaker L, Stajić N, Stein A, Taha D, Wand D, Zonana J, Lücke T, Boerkoel CF. Reduced elastogenesis: a clue to the arteriosclerosis and emphysematous changes in Schimke immuno-osseous dysplasia? Orphanet J Rare Dis 2012; 7:70. [PMID: 22998683 PMCID: PMC3568709 DOI: 10.1186/1750-1172-7-70] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 09/14/2012] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Arteriosclerosis and emphysema develop in individuals with Schimke immuno-osseous dysplasia (SIOD), a multisystem disorder caused by biallelic mutations in SMARCAL1 (SWI/SNF-related, matrix-associated, actin-dependent regulator of chromatin, subfamily a-like 1). However, the mechanism by which the vascular and pulmonary disease arises in SIOD remains unknown. METHODS We reviewed the records of 65 patients with SMARCAL1 mutations. Molecular and immunohistochemical analyses were conducted on autopsy tissue from 4 SIOD patients. RESULTS Thirty-two of 63 patients had signs of arteriosclerosis and 3 of 51 had signs of emphysema. The arteriosclerosis was characterized by intimal and medial hyperplasia, smooth muscle cell hyperplasia and fragmented and disorganized elastin fibers, and the pulmonary disease was characterized by panlobular enlargement of air spaces. Consistent with a cell autonomous disorder, SMARCAL1 was expressed in arterial and lung tissue, and both the aorta and lung of SIOD patients had reduced expression of elastin and alterations in the expression of regulators of elastin gene expression. CONCLUSIONS This first comprehensive study of the vascular and pulmonary complications of SIOD shows that these commonly cause morbidity and mortality and might arise from impaired elastogenesis. Additionally, the effect of SMARCAL1 deficiency on elastin expression provides a model for understanding other features of SIOD.
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Affiliation(s)
- Marie Morimoto
- Provincial Medical Genetics Program, Department of Medical Genetics, Children's and Women's Health Centre of BC, 4500 Oak Street, Room C234, Vancouver, BC, V6H 3N1, Canada
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Sousa SB, Pina R, Ramos L, Pereira N, Krahn M, Borozdin W, Kohlhase J, Amorim M, Gonnet K, Lévy N, Carreira IM, Couceiro AB, Saraiva JM. Tetra-amelia and lung hypo/aplasia syndrome: New case report and review. Am J Med Genet A 2008; 146A:2799-803. [DOI: 10.1002/ajmg.a.32489] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Venâncio M, Santos M, Pereira SA, Maciel P, Saraiva JM. An explanation for another familial case of Rett syndrome: maternal germline mosaicism. Eur J Hum Genet 2007; 15:902-4. [PMID: 17440498 DOI: 10.1038/sj.ejhg.5201835] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Rett syndrome (RTT; OMIM#312750) is a severe neurodevelopmental disorder that affects mainly girls. It has an estimated incidence of 1:10,000-15,000 females. Mutations in the X-linked gene methyl CpG-binding protein 2 (MECP2) have been found in most patients. The most accepted explanation for the sex bias is that the Rett mutation in sporadic cases has its origin in the paternal germline X chromosome and can thus only be transmitted to females. The majority of cases are sporadic (99.5%) but some familial cases have been described. These cases can either be explained by germline mosaicism or by asymptomatic carrier mothers with skewing of X-inactivation towards the wild-type MECP2 allele. We describe one of the few familial cases of RTT in which a maternal germline mosaicism is the most likely explanation. The mutation p.Arg270fs (c.808delC) was identified in both a girl with classical RTT and her brother who had the severe neurological phenotype usually described in males. The mutation was absent in DNA extracted from blood of both parents. These type of events must be taken into consideration in the genetic counselling of families after the diagnosis of a first case of RTT in a female or a MECP2 mutation in a male.
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Affiliation(s)
- Margarida Venâncio
- Serviço de Genética Médica, Hospital Pediátrico de Coimbra, Coimbra, Portugal
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Clewing JM, Fryssira H, Goodman D, Smithson SF, Sloan EA, Lou S, Huang Y, Choi K, Lücke T, Alpay H, André JL, Asakura Y, Biebuyck-Gouge N, Bogdanovic R, Bonneau D, Cancrini C, Cochat P, Cockfield S, Collard L, Cordeiro I, Cormier-Daire V, Cransberg K, Cutka K, Deschenes G, Ehrich JHH, Fründ S, Georgaki H, Guillen-Navarro E, Hinkelmann B, Kanariou M, Kasap B, Kilic SS, Lama G, Lamfers P, Loirat C, Majore S, Milford D, Morin D, Ozdemir N, Pontz BF, Proesmans W, Psoni S, Reichenbach H, Reif S, Rusu C, Saraiva JM, Sakallioglu O, Schmidt B, Shoemaker L, Sigaudy S, Smith G, Sotsiou F, Stajic N, Stein A, Stray-Pedersen A, Taha D, Taque S, Tizard J, Tsimaratos M, Wong NACS, Boerkoel CF. Schimke immunoosseous dysplasia: suggestions of genetic diversity. Hum Mutat 2007; 28:273-83. [PMID: 17089404 DOI: 10.1002/humu.20432] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Schimke immunoosseous dysplasia (SIOD), which is characterized by prominent spondyloepiphyseal dysplasia, T-cell deficiency, and focal segmental glomerulosclerosis, is a panethnic autosomal recessive multisystem disorder with variable expressivity. Biallelic mutations in switch/sucrose nonfermenting (swi/snf) related, matrix-associated, actin-dependent regulator of chromatin, subfamily a-like 1 (SMARCAL1) are the only identified cause of SIOD. However, among 72 patients from different families, we identified only 38 patients with biallelic mutations in the coding exons and splice junctions of the SMARCAL1 gene. This observation, the variable expressivity, and poor genotype-phenotype correlation led us to test several hypotheses including modifying haplotypes, oligogenic inheritance, or locus heterogeneity in SIOD. Haplotypes associated with the two more common mutations, R820H and E848X, did not correlate with phenotype. Also, contrary to monoallelic SMARCAL1 coding mutations indicating oligogenic inheritance, we found that all these patients did not express RNA and/or protein from the other allele and thus have biallelic SMARCAL1 mutations. We hypothesize therefore that the variable expressivity among patients with biallelic SMARCAL1 mutations arises from environmental, genetic, or epigenetic modifiers. Among patients without detectable SMARCAL1 coding mutations, our analyses of cell lines from four of these patients showed that they expressed normal levels of SMARCAL1 mRNA and protein. This is the first evidence for nonallelic heterogeneity in SIOD. From analysis of the postmortem histopathology from two patients and the clinical data from most patients, we propose the existence of endophenotypes of SIOD.
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Affiliation(s)
- J Marietta Clewing
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
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Kilic SS, Donmez O, Sloan EA, Elizondo LI, Huang C, André JL, Bogdanovic R, Cockfield S, Cordeiro I, Deschenes G, Fründ S, Kaitila I, Lama G, Lamfers P, Lücke T, Milford DV, Najera L, Rodrigo F, Saraiva JM, Schmidt B, Smith GC, Stajic N, Stein A, Taha D, Wand D, Armstrong D, Boerkoel CF. Association of migraine-like headaches with Schimke immuno-osseous dysplasia. Am J Med Genet A 2005; 135:206-10. [PMID: 15884045 DOI: 10.1002/ajmg.a.30692] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Schimke immuno-osseous dysplasia (SIOD) is characterized by spondyloepiphyseal dysplasia, nephropathy, and T-cell deficiency. SIOD is caused by mutations in the putative chromatin remodeling protein SMARCAL1. We report an 8-year-old boy with SIOD and recurrent, severe, refractory migraine-like headaches. Through a retrospective questionnaire-based study, we found that refractory and severely disabling migraine-like headaches occur in nearly half of SIOD patients. We have also found that the vasodilator minoxidil provided symptomatic relief for one patient. We hypothesize that these headaches may arise from an intrinsic vascular, neuroimmune, or neurovascular defect resulting from loss of SMARCAL1 function.
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Affiliation(s)
- Sara Sebnem Kilic
- Department of Pediatrics, Division of Immunology, Uludag University Medical Faculty, Görükle-Bursa, Turkey
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14
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Campos-Xavier AB, Saraiva JM, Ribeiro LM, Munnich A, Cormier-Daire V. Chloride channel 7 (CLCN7) gene mutations in intermediate autosomal recessive osteopetrosis. Hum Genet 2003; 112:186-9. [PMID: 12522560 DOI: 10.1007/s00439-002-0861-9] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2002] [Accepted: 09/23/2002] [Indexed: 10/25/2022]
Abstract
Osteopetrosis is a heterogeneous group of inherited disorders that includes a malignant autosomal recessive form, an intermediate autosomal recessive form and autosomal dominant forms of the disease. Most malignant osteopetroses have been ascribed to mutations in the OC116 gene encoding the human a3 subunit of vacuolar H(+)-ATPase. Few cases of autosomal recessive malignant osteopetrosis have been ascribed to mutations in the chloride channel 7 gene (CLCN7), which accounts for all autosomal dominant type II cases reported to date. Up until now, however, nothing has been known regarding the molecular basis of the intermediate form of osteopetrosis (IARO). Our study of two Portuguese IARO families shows that homozygosity for ClCN7 mutations also accounts for this form of osteopetrosis. The two patients presented with spontaneous fractures in the first years of life and generalised increase of bone density. Direct sequencing of the ClCN7 gene in both patients revealed homozygosity for two mutations (G203D and P470Q). We conclude therefore that ClCN7 mutations not only account for some dominant and malignant forms but also for intermediate forms of osteopetrosis.
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Affiliation(s)
- Ana Belinda Campos-Xavier
- Department of Medical Genetics and INSERM U393, Hôpital Necker Enfants Malades, 149 Rue de Sèvres, 75015 Paris, France
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Boerkoel CF, Takashima H, John J, Yan J, Stankiewicz P, Rosenbarker L, André JL, Bogdanovic R, Burguet A, Cockfield S, Cordeiro I, Fründ S, Illies F, Joseph M, Kaitila I, Lama G, Loirat C, McLeod DR, Milford DV, Petty EM, Rodrigo F, Saraiva JM, Schmidt B, Smith GC, Spranger J, Stein A, Thiele H, Tizard J, Weksberg R, Lupski JR, Stockton DW. Mutant chromatin remodeling protein SMARCAL1 causes Schimke immuno-osseous dysplasia. Nat Genet 2002; 30:215-20. [PMID: 11799392 DOI: 10.1038/ng821] [Citation(s) in RCA: 221] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Schimke immuno-osseous dysplasia (SIOD, MIM 242900) is an autosomal-recessive pleiotropic disorder with the diagnostic features of spondyloepiphyseal dysplasia, renal dysfunction and T-cell immunodeficiency. Using genome-wide linkage mapping and a positional candidate approach, we determined that mutations in SMARCAL1 (SWI/SNF2-related, matrix-associated, actin-dependent regulator of chromatin, subfamily a-like 1), are responsible for SIOD. Through analysis of data from persons with SIOD in 26 unrelated families, we observed that affected individuals from 13 of 23 families with severe disease had two alleles with nonsense, frameshift or splicing mutations, whereas affected individuals from 3 of 3 families with milder disease had a missense mutation on each allele. These observations indicate that some missense mutations allow retention of partial SMARCAL1 function and thus cause milder disease.
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Affiliation(s)
- Cornelius F Boerkoel
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA.
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16
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Campos-Xavier B, Saraiva JM, Savarirayan R, Verloes A, Feingold J, Faivre L, Munnich A, Le Merrer M, Cormier-Daire V. Phenotypic variability at the TGF-beta1 locus in Camurati-Engelmann disease. Hum Genet 2001; 109:653-8. [PMID: 11810278 DOI: 10.1007/s00439-001-0644-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2001] [Accepted: 10/05/2001] [Indexed: 10/28/2022]
Abstract
Camurati-Engelmann disease (CED) [OMIM 131300] is an autosomal dominant sclerosing bone dysplasia recently ascribed to mutations of the transforming growth factor (TGF-beta1) gene on chromosome 19q13.1-q13.3. Five mutations consistently located in the TGF-beta1 propeptide have been hitherto identified in 21 families. Here, we report on TGF-beta1 mutations in one Australian and six European families. Three distinct mutations were identified among seven families: namely, R218H (family 1), R218C (families 2, 6, 7) and C225R (families 3, 4, 5). The three mutations identified in our pedigrees have been previously observed in families of Japanese and Israeli origin and the R218C appears to be the most prevalent mutation worldwide (17/28 reported families). No obvious correlation between the nature of the mutations and the severity of the clinical manifestations could be established, but a marked intrafamilial clinical variability was observed, supporting incomplete penetrance of CED. Interestingly, the polymorphisms in the TGF-beta1 gene showed no correlation with the severity of the disease. We conclude that CED is a clinically variable condition and that this clinical variability is not accounted for by polymorphisms at the TGF-beta1 locus.
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Affiliation(s)
- B Campos-Xavier
- Department of Medical Genetics and INSERM U393, Hôpital Necker Enfants Malades, 149 Rue de Sèvres, 75015 Paris, France
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17
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Saraiva JM, Pinto MR, Monteiro C, Lima MR, Medeira A, Rendeiro P. Portugal: the practice of medical genetics in Portugal. Portuguese Society of Human Genetics. Genet Med 2001; 3:220-1. [PMID: 11388766 DOI: 10.1097/00125817-200105000-00014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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18
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Saraiva JM, Anionwu E, Belo M, Jenkins T, Kristoffersson U, Marques I, Santos HG, Sequeiros J, Simpson SA, Wertz D, Monteiro C. Issues in human GenEthics. Genet Med 2001; 3:218-9. [PMID: 11388765 DOI: 10.1097/00125817-200105000-00013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- J M Saraiva
- Servico de Genetica Medica, Centro Hospitalar de Coimbra, Portugal.
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Belinda A, Xavier CF, Saraiva JM, Le Merrer M, Dagoneau N, Huber C, Penet C, Munnich A, Cormier-Daire V. Genetic homogeneity of the Camurati-Engelmann disease. Clin Genet 2000; 58:150-2. [PMID: 11005150 DOI: 10.1034/j.1399-0004.2000.580211.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Abstract
Lenz-Majewski hyperostotic dwarfism is an extremely rare syndrome with moderate to severe mental retardation and no previously identified brain abnormalities. We describe the seventh case and note dysgenesis of the corpus callosum in this patient.
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Affiliation(s)
- J M Saraiva
- Consulta de Genética, Hospital Pediátrico de Coimbra e Serviço de Genética Médica, Faculdade de Medicina de Coimbra, Coimbra, Portugal.
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Saraiva JM, Dinis A, Resende C, Faria E, Gomes C, Correia AJ, Gil J, da Fonseca N. Schimke immuno-osseous dysplasia: case report and review of 25 patients. J Med Genet 1999; 36:786-9. [PMID: 10528861 PMCID: PMC1734237 DOI: 10.1136/jmg.36.10.786] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Immuno-osseous dysplasia is characterised by spondyloepiphyseal dysplasia, lymphopenia with defective cellular immunity, and progressive renal disease. We describe a patient with a severe form of the disease, review the features of another 24 patients, and discuss the previous classification. The differences between the two groups are not striking, and although similarities are greater between affected sibs, the same diagnosis of Schimke immuno-osseous dysplasia should apply to them all. The aetiology and physiopathology of this rare osteochondrodysplasia of presumed autosomal recessive inheritance remain unknown.
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Affiliation(s)
- J M Saraiva
- Consulta de Genética, Hospital Pediátrico de Coimbra, Portugal
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Saraiva JM, Cordeiro I, Santos HG. Robinow syndrome in monozygotic twins with normal stature. Clin Dysmorphol 1999; 8:147-50. [PMID: 10319206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Robinow syndrome was found in two monozygotic twins. We describe the clinical and radiographic manifestations in these patients, both with normal stature and one with omphalocele, with a follow-up of 13 years. Families with Robinow syndrome of both autosomal dominant and recessive inheritance have been reported. We apply the criteria suggested to assign isolated cases to one of the two forms and conclude that autosomal dominant inheritance is more likely.
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Affiliation(s)
- J M Saraiva
- Consulta de Genética, Hospital Pediátrico de Coimbra, Portugal
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Saraiva JM, Cordeiro I, Santos HG. Robinow syndrome in monozygotic twins with normal stature. Clin Dysmorphol 1999. [DOI: 10.1097/00019605-199904000-00012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Saraiva JM, Matoso E, Marques I. Absence of a del(22q11) in a patient with the 3C (craniocerebellocardiac) syndrome. J Med Genet 1998; 35:347-8. [PMID: 9598739 PMCID: PMC1051298 DOI: 10.1136/jmg.35.4.347-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
Progressive diaphyseal dysplasia was found in a 3-generation family including 18 affected individuals. We describe the clinical and radiographic manifestations in 6 of 18 patients with this autosomal-dominant bone dysplasia and the good symptomatic response to corticosteroid treatment in one of these. The variability of manifestations of the disease in this family and in others previously described seems to depend on the sex of the patient and the parental origin of the mutation. The patients with more severe symptoms are males who inherited an allele of paternal origin. We suggest that the progressive diaphyseal dysplasia gene has a function in endochondral bone formation and that its mutation is a dynamic one with repeat expansion enhanced in father-to-son transmission.
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Affiliation(s)
- J M Saraiva
- Consulta de Genética, Hospital Pediátrico de Coimbra, Portugal
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Santos HG, Saraiva JM. Opsismodysplasia: another case and literature review. Clin Dysmorphol 1995; 4:222-6. [PMID: 7551158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- H G Santos
- Unidade de Genética, Hospital de Santa Maria, Lisboa, Portugal
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28
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Saraiva JM, Gama E, Pires MM, Sequeira JF. First report of glaucoma as a feature of the 3C syndrome. Clin Dysmorphol 1995; 4:156-60. [PMID: 7606323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We report the seventh case of the 3C syndrome or Cranio-Cerebello-Cardiac dysplasia. The presence of congenital glaucoma in our patient suggests that this is a previously undescribed feature of this syndrome, which is presumed to be autosomal recessive.
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Affiliation(s)
- J M Saraiva
- Paediatric Hospital of Coimbra, Avenida Bissaya Barreto, Portugal
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Abstract
We examined the value of the fasting plasma phenylalanine/tyrosine ratio obtained in an ordinary clinical setting for assessing the probability of being a heterozygote for hyperphenylalaninaemia. This biochemical test was found to be of little value in those with a high (66%) prior risk of heterozygosity, because it could not reduce the risk below 12%. However, in a population with a prior risk of only 2%, it discriminates the 3% with a 19% risk from the 97% with a risk of 1.5% or less. This simple method could usefully be applied to such a population, in order to select those at higher risk for further investigation using molecular genetics.
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Abstract
We review 72 previously reported and 29 new patients with the possible diagnosis of Joubert syndrome. We define diagnostic criteria for this syndrome and present the data available in 94 patients that fulfill our criteria. We present the data regarding the clinical, neuroradiological, and ophthalmological manifestations and the prognosis of these 94 patients. We propose a classification of the patients with this diagnosis in 2 groups: those with retinal dystrophy and those without. Retinal dystrophy runs true in families and was never absent when renal cysts were reported.
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Dietz HC, Saraiva JM, Pyeritz RE, Cutting GR, Francomano CA. Clustering of fibrillin (FBN1) missense mutations in Marfan syndrome patients at cysteine residues in EGF-like domains. Hum Mutat 1992; 1:366-74. [PMID: 1301946 DOI: 10.1002/humu.1380010504] [Citation(s) in RCA: 95] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The Marfan syndrome is an autosomal dominant heritable disorder of connective tissue with prominent involvement of the ocular, skeletal, and cardiovascular systems. The gene on chromosome 15 encoding fibrillin (FBN1), a 350-kDa glycoprotein component of the extracellular microfibril, is the site of defect in most, if not all cases. Complementary DNA sequence reveals a gene composed largely of epidermal growth factor-like repeats, each containing six predictably spaced cysteine residues. To date, two FBN1 gene missense mutations have been reported. Here we describe the identification of three new missense mutations in the FBN1 gene in patients with the Marfan syndrome. All of the 5 characterized missense mutations occur within the epidermal growth factor-like repeats of the FBN1 gene. In addition, 4 of 5 involve the substitution of cysteine residues and 3 of 5 substitute the third cysteine in the epidermal growth factor-like motif consensus sequence. These data suggest that defined residues within EGF-like domains of FBN1 have particular significance and, when altered, play a pivotal role in expression of the Marfan phenotype.
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Affiliation(s)
- H C Dietz
- Division of Pediatric Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
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Saraiva JM, Lemos C, Gonçalves I, Mota HC, Carneiro F. Arthrogryposis multiplex congenita with renal and hepatic abnormalities. Am J Med Genet 1992; 42:140. [PMID: 1308356 DOI: 10.1002/ajmg.1320420130] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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35
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