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3.
J Med Genet ; 48(5): 299-307, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21525063

RESUMO

BACKGROUND: Congenital diaphragmatic hernia (CDH) is a life threatening birth defect. Most of the genetic factors that contribute to the development of CDH remain unidentified. OBJECTIVE: To identify genomic alterations that contribute to the development of diaphragmatic defects. METHODS: A cohort of 45 unrelated patients with CDH or diaphragmatic eventrations was screened for genomic alterations by array comparative genomic hybridisation or single nucleotide polymorphism based copy number analysis. RESULTS: Genomic alterations that were likely to have contributed to the development of CDH were identified in 8 patients. Inherited deletions of ZFPM2 were identified in 2 patients with isolated diaphragmatic defects and a large de novo 8q deletion overlapping the same gene was found in a patient with non-isolated CDH. A de novo microdeletion of chromosome 1q41q42 and two de novo microdeletions on chromosome 16p11.2 were identified in patients with non-isolated CDH. Duplications of distal 11q and proximal 13q were found in a patient with non-isolated CDH and a de novo single gene deletion of FZD2 was identified in a patient with a partial pentalogy of Cantrell phenotype. CONCLUSIONS: Haploinsufficiency of ZFPM2 can cause dominantly inherited isolated diaphragmatic defects with incomplete penetrance. These data define a new minimal deleted region for CDH on 1q41q42, provide evidence for the existence of CDH related genes on chromosomes 16p11.2, 11q23-24 and 13q12, and suggest a possible role for FZD2 and Wnt signalling in pentalogy of Cantrell phenotypes. These results demonstrate the clinical utility of screening for genomic alterations in individuals with both isolated and non-isolated diaphragmatic defects.


Assuntos
Genoma Humano/genética , Substituição de Aminoácidos/genética , Pré-Escolar , Aberrações Cromossômicas , Cromossomos Humanos Par 1 , Cromossomos Humanos Par 11 , Cromossomos Humanos Par 16 , Cromossomos Humanos Par 17 , Cromossomos Humanos Par 8 , Hibridização Genômica Comparativa , Proteínas de Ligação a DNA/genética , Eventração Diafragmática/genética , Feminino , Hérnia Diafragmática/diagnóstico por imagem , Hérnia Diafragmática/genética , Hérnias Diafragmáticas Congênitas , Humanos , Lactente , Recém-Nascido , Masculino , Mutação/genética , Radiografia , Fatores de Transcrição/genética
7.
Eur J Pediatr ; 163(1): 33-7, 2004 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-14586646

RESUMO

UNLABELLED: Neonatal Marfan syndrome, the most severe presentation of Marfan syndrome phenotypes (MIM 154700), is characterised mainly by joint contractures, arachnodactyly, loose skin, crumpled ears, severe atrioventricular valve dysfunction and pulmonary emphysema. Death usually occurs within the first 2 years of life from congestive heart failure. We describe here a newborn male with many typical characteristics of neonatal Marfan syndrome associated with a diaphragmatic eventration and a bilateral uretero-hydronephrosis with bladder dilatation. He died from cardiac failure due to severe tricuspid and mitral regurgitation at 62 h of age. CONCLUSION: Molecular analysis showed a heterozygous missense mutation at nucleotide 3165 (3165T>G) in exon 25 of the FBN1 gene, resulting in the substitution of cysteine for tryptophan (C1055W).


Assuntos
Insuficiência Cardíaca/etiologia , Síndrome de Marfan/genética , Proteínas dos Microfilamentos/genética , Eventração Diafragmática/etiologia , Eventração Diafragmática/genética , Evolução Fatal , Fibrilina-1 , Fibrilinas , Insuficiência Cardíaca/genética , Humanos , Recém-Nascido , Masculino , Síndrome de Marfan/complicações , Mutação de Sentido Incorreto , Doenças Urológicas/etiologia , Doenças Urológicas/genética
8.
Am J Med Genet ; 108(1): 45-50, 2002 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-11857549

RESUMO

Two sporadic cases of eventration of the diaphragm are reported; one had bilateral colobomatous microphthalmia and the other had anophthalmia. Absence of polydactyly and presence of eventration rather than diaphragmatic hernia helped to exclude Fryns syndrome. These cases together with published cases with overlapping features support the thesis that this combination of defects is nonrandom and of heterogeneous cause. Some cases are due to a pleiotropic gene defect. In other cases, a polytypic developmental field involving an unknown developmental cascade common to the eye and diaphragm may provide a basis for the combination.


Assuntos
Anormalidades Múltiplas , Anoftalmia , Eventração Diafragmática , Microftalmia , Anormalidades Múltiplas/genética , Anormalidades Múltiplas/patologia , Anoftalmia/genética , Anoftalmia/patologia , Eventração Diafragmática/genética , Eventração Diafragmática/patologia , Feminino , Humanos , Recém-Nascido , Masculino , Microftalmia/genética , Microftalmia/patologia , Síndrome
9.
Eur J Pediatr Surg ; 10(5): 337-9, 2000 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11194547

RESUMO

Spondylothoracic dysplasia (Jarcho-Levin syndrome) is a syndrome of unknown etiology. We describe a new case with diaphragmatic eventration. Literature review for cases of Jarcho-Levin syndrome with diaphragmatic defects, which were six cases, revealed that renal affection increased when diaphragmatic defects associate the syndrome with pulmonary hypoplasia. Thus, the subgroup of spondylothoracic dysplasia with diaphragmatic defect is a more severe subgroup of the syndrome rather than the other forms of this syndrome. Relating the described anomalies in this case and that of the literature cases to the known embryological basis may point to a pivotal developmental link between lung, kidney and diaphragm, possibly the posterior mesenchyme.


Assuntos
Eventração Diafragmática/diagnóstico por imagem , Tórax em Funil/diagnóstico por imagem , Pulmão/anormalidades , Costelas/anormalidades , Vértebras Torácicas/anormalidades , Consanguinidade , Eventração Diafragmática/genética , Tórax em Funil/genética , Humanos , Recém-Nascido , Pulmão/diagnóstico por imagem , Masculino , Radiografia , Costelas/diagnóstico por imagem , Síndrome , Vértebras Torácicas/diagnóstico por imagem
10.
Eur J Pediatr ; 151(4): 288-90, 1992 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-1499582

RESUMO

A 2-year-old boy with typical features of the acrocallosal syndrome is presented. His parents are first degree cousins and their first pregnancy resulted in spontaneous abortion whereas the offspring of their second pregnancy was an anencephalic baby with bilateral post-axial polydactyly of the hands. The possibility of including anencephaly in the spectrum of the CNS malformations of the acrocallosal syndrome is suggested.


Assuntos
Anormalidades Múltiplas/genética , Agenesia do Corpo Caloso , Anencefalia/genética , Consanguinidade , Eventração Diafragmática/genética , Face/anormalidades , Dedos/anormalidades , Perda Auditiva Neurossensorial/genética , Pré-Escolar , Genes Recessivos , Humanos , Masculino , Síndrome , Dedos do Pé/anormalidades
11.
J Pediatr Surg ; 24(11): 1140-1, 1989 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-2809986

RESUMO

We present a case of congenital bilateral eventration of the diaphragm in a pair of male twins. The case is associated with severe pulmonary hypoplasia. Both infants died in the neonatal period. An exposure to Thiotepa in the first trimester of the pregnancy is a possible etiologic factor.


Assuntos
Eventração Diafragmática/genética , Doenças em Gêmeos , Feminino , Humanos , Recém-Nascido , Masculino , Gêmeos Monozigóticos
12.
Am J Med Genet ; 27(1): 213-8, 1987 May.
Artigo em Inglês | MEDLINE | ID: mdl-3605197

RESUMO

We describe two infants dying neonatally of respiratory failure despite all attempts at resuscitation. The most striking finding at autopsy was eventration and reduced muscle content of the diaphragm. Microscopic examination of the skeletal muscles, in combination with retrospective evaluation of the family history, disclosed severe X-linked centronuclear myopathy in the first patient and congenital myotonic dystrophy in the second. These disorders are probably more frequent than reported before. Their identification is important, not only for genetic counseling of the involved families but also for providing the neonatologist a sufficient explanation for the failure of resuscitation.


Assuntos
Eventração Diafragmática/complicações , Síndrome do Desconforto Respiratório do Recém-Nascido/etiologia , Eventração Diafragmática/genética , Eventração Diafragmática/patologia , Feminino , Ligação Genética , Humanos , Recém-Nascido , Masculino , Miotonia Congênita/complicações , Miotonia Congênita/genética , Cromossomo X
13.
Am J Med Genet ; 18(4): 725-9, 1984 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-6237580

RESUMO

We report on an infant with a malformation syndrome who had a combination of partial duplication of 4q and 21q as the result of a maternal unbalanced translocation. She has duplication of the proximal portion of chromosome 21, without manifestation of the Down syndrome.


Assuntos
Anormalidades Múltiplas/genética , Aberrações Cromossômicas , Cromossomos Humanos 21-22 e Y , Cromossomos Humanos 4-5 , Síndrome de Down , Translocação Genética , Bandeamento Cromossômico , Eventração Diafragmática/genética , Feminino , Heterozigoto , Humanos , Recém-Nascido , Intestino Grosso/anormalidades , Cariotipagem , Linfócitos/ultraestrutura , Microcefalia/genética , Linhagem , Artéria Subclávia/anormalidades
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