Analysis of genotypes and phenotypes of three children with Cornelia de Lange syndrome / 中华医学遗传学杂志

OBJECTIVE@#To analyze the clinical phenotype and results of genetic testing in three children with Cornelia de Lange syndrome (CdLS).@*METHODS@#Clinical data of the children and their parents were collected. Peripheral blood samples of the pedigrees were collected for next generation sequencing analysis.@*RESULTS@#The main clinical manifestations of the three children have included growth delay, mental retardation, peculiar facies and other accompanying symptoms. Based on the criteria proposed by the International Diagnostic Consensus, all three children were suspected for CdLS. As revealed by whole exome sequencing, child 1 has harbored NIPBL gene c.5567_5569delGAA insTAT missense variant, child 2 has harbored SMC1A gene c.607A>G missense variant, and child 3 has harbored HDAC8 gene c.628+1G>A splicing variant. All of the variants were de novo in origin.@*CONCLUSION@#All of the children were diagnosed with CdLS due to pathogenic variants of the associated genes, among which the variants of NIPBL and HDAC8 genes were unreported previously. Above finding has enriched the spectrum of pathogenic variants underlying CdLS.

Analysis of clinical phenotype and pathogenic variant of a fetus with Cornelia de Lange syndrome type II / 中华医学遗传学杂志

OBJECTIVE@#To explore the prenatal ultrasonographic features and genetic basis for an abortus suspected for type II Cornelia de Lange syndrome (CdLS2).@*METHODS@#A fetus diagnosed with CdLS2 at the Shengjing Hospital Affiliated to China Medical University on September 3, 2019 was selected as the study subject. Clinical data of the fetus and family history was collected. Following induced labor, whole exome sequencing was carried out on the abortus. Candidate variant was verified by Sanger sequencing and bioinformatic analysis.@*RESULTS@#Prenatal ultrasonography (33 weeks of pregnancy) has revealed multiple anomalies in the fetus, which included slightly widened cavity of septum pellucidum, blurred corpus callosum, slightly reduced frontal lobe volume, thin cortex, fusion of lateral ventricles, polyhydramnios, small stomach bubble, and digestive tract atresia. Whole exome sequencing has revealed a heterozygous c.2076delA (p.Lys692Asnfs*27) frameshifting variant in the SMC1A gene, which was found in neither parent and was rated as pathogenic based on the guidelines of American College of Medical Genetics and Genomics (ACMG).@*CONCLUSION@#The CdLS2 in this fetus may be attributed to the c.2076delA variant of the SMC1A gene. Above finding has provided a basis for genetic counseling and assessment of reproductive risk for this family.

Síndrome de Cornelia de Lange: análise de uma série de 33 pacientes em um centro de referência / Cornelia de Lange syndrome: analysis of a series of 33 patients in an excellence center

Introdução: A Síndrome de Cornelia de Lange (CdLS) (OMIM: 122470) é uma doença genética rara com quadro clínico e fenótipo variáveis, compreendendo um grupo de doenças denominado coesinopatias. Entre suas principais características: deficiência intelectual (DI), baixa estatura, doença do refluxo gastroesofágico (DRGE), hipertricose, dismorfismos faciais e anomalias em membros superiores. O diagnóstico pode ser dificultado nos quadros atenuados. O objetivo do estudo foi determinar os principais achados clínicos e moleculares em uma série de pacientes com o diagnóstico clínico de CdLS.Métodos: Foram avaliados 33 pacientes com diagnóstico clínico e/ou molecular de CdLS (18 sexo feminino e 15 masculino) com idades entre 1 mês e 43 anos. Aplicou-se um escore clínico visando a categorização dos pacientes baseado em Kline et al. (2018). Esta ferramenta utiliza sinais clínicos para determinar as formas clássicas (n: 23), não clássicas (n: 6) e os casos que, apesar de não se enquadrarem nestas categoriais, também deveriam ser testados molecularmente para a síndrome (n: 4).Resultados: Atraso do desenvolvimento/DI, distúrbios de comportamento, déficit de crescimento e DRGE foram as comorbidades mais prevalentes. Entre as dismorfias: sinofris, micrognatia, narinas antevertidas e comissura labial desviada para baixo. Os achados moleculares nos pacientes submetidos ao sequenciamento completo do exoma revelaram 6 variantes em NIPBL (46%), 2 variantes em SMC1A (15%), 1 variante em SMC3, 1 variante em HDAC8, 1 variante em AHDC1 e 2 resultados negativos.Conclusões: Os dados obtidos revelaram uma grande heterogeneidade de apresentação da síndrome. A utilização de escores clínicos podem auxiliar no diagnóstico de CdLS.

Introduction: Cornelia de Lange syndrome (CdLS) (OMIM: 122470) is a rare genetic disease with variable clinical presentation and phenotype, part of a group of disorders termed cohesinopathies. Intellectual disability, growth retardation, gastroesophageal reflux disease, hypertrichosis, facial dysmorphisms, and anomalies of the upper limbs are the most common clinical characteristics. Diagnosis may be difficult, especially in attenuated presentations. The aim of this study was to determine the main clinical and molecular findings in a series of patients with clinical diagnosis of CdLS.Methods: Thirty-three patients with typical clinical and/or molecular diagnosis of CdLS (18 female and 15 male) aged between 1 month and 43 years were evaluated. A clinical score was applied to categorize patients. This tool uses clinical signs to determine the classic (n: 23) and nonclassic (n: 6) forms, in addition to a category to suggest which cases should be molecularly tested for the syndrome (n: 4).Results: Developmental delay/intellectual disability, behavioral disorders, growth retardation, and gastroesophageal reflux disease were the most prevalent comorbidities. Dysmorphic features included synophrys micrognathia, anteverted nostrils, and labial commissure turning downwards. Molecular findings in those who underwent whole exome sequencing revealed 6 variants in NIPBL (46%), 2 variants in SMC1A (15%), 1 variant in SMC3, 1 variant in HDAC8, 1 variant in AHDC1, and 2 negative results.Conclusions: The data revealed a great heterogeneity in the presentation of the syndrome. The use of clinical scores can help in the diagnosis of CdLS.

Síndrome de Cornelia de Lange y deficiencias hormonales pituitáricas múltiples, una asociación inusual: Caso clínico / Cornelia de Lange Syndrome and multiple hormonal deficiency, an unusual association: Clinical case

El síndrome de Cornelia de Lange es una enfermedad genética caracterizada por rasgos faciales distintivos, falla de medro, microcefalia y varias malformaciones asociadas. Sus principales alteraciones endocrinológicas son las anomalías genitales. Se presenta un adolescente de 13 años, tratado por neumonía aspirativa complicada y que presentaba el fenotipo del síndrome de Cornelia de Lange, que incluía retraso global del desarrollo, trastorno de succión-deglución, talla baja y alteración del desarrollo sexual. Su edad ósea era muy retrasada, por lo que se realizó un estudio endocrinológico completo. Se le diagnosticaron hipotiroidismo central, deficiencia de la hormona de crecimiento y deficiencia de hormona luteotrópica y folículoestimulante, compatibles con el diagnóstico de deficiencias hormonales pituitáricas múltiples. Tuvo cortisol basal, hormona adrenocorticotrópica y prolactina normales. Recibió suplencia hormonal tiroidea. Es inusual la asociación de este síndrome con deficiencias hormonales pituitáricas múltiples. Se sugiere la evaluación de los distintos ejes endócrinos en estos pacientes.

Cornelia de Lange syndrome is a genetic disease characterized by distinctive facial features, failure to thrive, microcephaly and several malformations associated. Its main endocrinological features are anomalies of the genitalia. We present a 13-year-old boy, who suffered from complicated aspiration pneumonia and showed Cornelia de Lange syndrome phenotype, with global developmental delay, suction-swallowing abnormalities, short stature and abnormal genitalia associated. His bone age was delayed, so he underwent full endocrinological panel. Central hypothyroidism, growth hormone deficiency and low luteinizing hormone-follicle-stimulating hormone levels were observed and multiple pituitary hormone deficiencies diagnosis was made. Basal cortisol, adrenocorticotropic hormone and prolactin levels were normal. He received thyroid hormonal substitution. Multiple pituitary hormone deficiencies are an unusual feature of De Lange syndrome. We suggest evaluating all different endocrine axes in these patients.

Síndrome cornelia de lange, fenotipo III / Cornelia de lange syndrome, phenotype III

El Síndrome de Cornelia de Lange es un trastorno del desarrollo poco frecuente, heterogéneo genéticamente, que se define en su forma clásica por hipocrecimiento antenatal y postnatal, microcefalia, rasgos faciales distintivos, sinofridia e hirsutismo, retraso mental y micromelia. Objetivo: dar a conocer las características clínicas de los pacientes con este síndrome para realizar diagnósticos oportunos, estudios pertinentes y manejos multidisciplinarios en los pacientes afectados. Caso Clínico, lactante femenina, 19 meses de edad, con antecedentes maternos: 17 años, embarazo de 34 semanas de gestación, con un control prenatal, atendida en Hospital Santa Bárbara Integrado, ingresada para uteroinhibición sin lograr respuesta y desencadena trabajo de parto. Recién nacida, femenina, cefálica, peso de 1,625 g, perímetro cefálico 29.5 cm, malformaciones en miembros superiores, ingresada a sala de neonatos por distrés respiratorio y prematurez. Evaluada por pediatra, quien describe características dismórficas. Al examen físico: focomelia, micromelia, pestañas largas y abundantes, sinofridia e hirsutismo. En la radiografía se observó: agenesia de ambos cubitos, todos los hallazgos clínicos y laboratoriales compatibles con Síndrome de Cornelia de Lange. No se realizó ecocardiograma ni estudios genéticos, el diagnóstico de este síndrome fue clínico. A los 19 meses fue reevaluada y se encontró: peso 3,600 g, perímetro cefálico 34.5 cm y talla 55 cm, evidente retraso del crecimiento, mental y psicomotor. Conclusión: los pacientes con este síndrome deben ser diagnosticados fundamentalmente por clínica, luego realizar estudios imagenológicos para descartar otras anomalías. Además, el tratamiento debe ser integral...(AU)

Novel Pathogenic Variant (c.3178G>A) in the SMC1A Gene in a Family With Cornelia de Lange Syndrome Identified by Exome Sequencing

Cornelia de Lange syndrome (CdLS) is a clinically and genetically heterogeneous congenital anomaly. Mutations in the NIPBL gene account for a half of the affected individuals. We describe a family with CdLS carrying a novel pathogenic variant of the SMC1A gene identified by exome sequencing. The proband was a 3-yr-old boy presenting with a developmental delay. He had distinctive facial features without major structural anomalies and tested negative for the NIPBL gene. His younger sister, mother, and maternal grandmother presented with mild mental retardation. By exome sequencing of the proband, a novel SMC1A variant, c.3178G>A, was identified, which was expected to cause an amino acid substitution (p.Glu1060Lys) in the highly conserved coiled-coil domain of the SMC1A protein. Sanger sequencing confirmed that the three female relatives with mental retardation also carry this variant. Our results reveal that SMC1A gene defects are associated with milder phenotypes of CdLS. Furthermore, we showed that exome sequencing could be a useful tool to identify pathogenic variants in patients with CdLS.

Síndrome Cornelia de Lange: reporte de un caso / Cornelia de Lange syndrome: a case report

INTRODUCCIÓN: El Síndrome Cornelia de Lange (SCdL), es un trastorno congénito del desarrollo, se presenta en descendencia de padres consanguíneos. Prevalencia de 0,2 a 1 por 10.000 nacidos vivos. Existe evidencia de cromosomopatías 3q25-29 y 5p13-14. Presenta un fenotipo facial característico con microcefalia, sinofridia, pestañas largas, labios en V-invertida, además de hipertricosis, oligodactilia, retraso del desarrollo psicomotor, y cardiopatías. El objetivo es establecer los antecedentes médicos relevantes para diagnosticar de forma precoz la enfermedad. CASO CLÍNICO: Niña de 16 meses de edad, padres consanguíneos, nacida prematura de 36 semanas, se le diagnostica un SCdL grave, además tiene cardiopatía congénita, riñones poliquísticos, hipoacusia severa, reflujo gastroesofágico complicándose con neumonía por aspiración. DISCUSIÓN: El diagnóstico se realiza con examen físico y cariograma. Considerar el Síndrome Alcohólico Fetal como diagnóstico diferencial. Para el tratamiento, es fundamental seguir las pautas del 2007 para el manejo de individuos con SCdL, así prevenir complicaciones respiratorias.

INTRODUCTION: Cornelia de Lange Syndrome (CdLS), is a congenital developmental disorder, occurs in offspring of consanguineous parents. The prevalence is 0.2 to 1 per 10,000 live births. There are evidence of chromosomopathies 3q25-29 and5p13-14. The affected have a characteristic facial phenotype with microcephaly, synophrys, long eyelashes, V-shaped invertedlips, hypertrichosis, oligodactyly, psychomotor retardation, and heart disease. The aim is to establish the relevant medical background for early diagnosis of the disease. CASE REPORT: Girl, 16 months old, consanguineous parents, born 36 weeks premature, diagnosed with a severe CdLS, congenital heart disease, polycystic kidneys, severe bilateral hearing loss, gastroesophageal reflux complicated by aspiration pneumonia. DISCUSSION: The diagnosis of CdLS is made by physical exam and karyotype. Fetal Alcohol Syndrome is the differential diagnosis. For treatment, it is essential to follow the 2007's guidelines for the management of individuals with CdLS and prevent respiratory complications.

Síndrome Cornelia de Lange: reporte de un caso / Cornelia de Lange Syndrome: a case report

El Síndrome Cornelia de Lange (SCdL), es un trastorno congénito del desarrollo que se presenta en descendencia de padres consanguíneos. Prevalencia de 0,2 a 1 por10.000 nacidos vivos. Existe evidencia de cromosomopatías3q25-29 y 5p13-14. Presenta un fenotipo facial característico con microcefalia, sinofridia, pestañas largas, labios en V-invertida, además de hipertricosis, oligodactilia, retraso del desarrollo psicomotor y cardiopatías. El objetivo es establecer los antecedentes médicos relevantes para diagnosticar de forma precoz la enfermedad. CASO CLÍNICO: Niña de 16 meses de edad, padres consanguíneos, nacida prematura de 36 semanas, se le diagnostica SCdL grave, además presenta cardiopatía congénita, riñones poliquísticos, hipoacusia severa y reflujo gastroesofágico, complicándose con neumonía por aspiración. DISCUSIÓN: El diagnóstico se realiza con examen físico y cariograma. Considerar el Síndrome Alcohólico Fetal como diagnóstico diferencial. Para el tratamiento, es fundamental seguir las pautas del 2007 para el manejo de individuos con SCdL, y así prevenir complicaciones respiratorias...

Cornelia de Lange Syndrome (CdLS), is a congenital developmental disorder, occurs in offspring of consanguineous parents. The prevalence is 0.2 to 1 per 10,000 live births. There are evidence of chromosomopathies 3q25-29 and5p13-14. The affected have a characteristic facial phenotype with microcephaly, synophrys, long eyelashes, V-shaped inverted lips, hypertrichosis, oligodactyly, psychomotor retardation, and heart disease. The aim is to establish the relevant medical background for early diagnosis of the disease. CASE REPORT: Girl, 16months old, consanguineous parents, born 36 weeks premature, diagnosed with a severe CdLS, congenital heart disease, polycystic kidneys, severe bilateral hearing loss, gastroesophageal reflux complicated by aspiration pneumonia. DISCUSSION: The diagnosis of CdLS is made by physical exam and karyotype. Fetal Alcohol Syndrome is the differential diagnosis. For treatment, it is essential to follow the 2007’s guidelines for the management of individuals with CdLS and prevent respiratory complications...

Síndrome de Cornelia de Lange: relato de dois casos com variabilidade clínica / Cornelia de Lange syndrome: report of two cases with clinical variability

O objetivo deste trabalho é relatar dois casos de pacientes com síndrome de Cornelia de Lange, comparando seus quadros clínicos com os achados da literatura e ressaltando a variabilidade fenotípica existente que, eventualmente, pode dificultar o diagnóstico. São apresentados os relatos de dois pacientes com a síndrome. No primeiro caso a criança tem um quadro típico clássico, enquanto a segunda apresenta uma forma moderada da síndrome. O diagnóstico da síndrome de Cornelia de Lange é eminentemente clínico. A despeito de três genes terem sido identificados como possíveis causadores dessa síndrome, exames moleculares para confirmação diagnóstica não estão disponíveis na prática médica cotidiana e, mesmo quando factíveis, podem não confirmar uma suspeita clínica. Neste artigo se discutem as distintas apresentações fenotípicas da síndrome e os critérios clínicos mínimos necessários para confirmação diagnóstica.

Cornelia de Lange Syndrome with NIPBL Gene Mutation: A Case Report

Cornelia de Lange Syndrome (CdLS) is a multiple congenital anomaly characterized by distinctive facial features, upper limb malformations, growth and cognitive retardation. The diagnosis of the syndrome is based on the distinctive clinical features. The etiology is still not clear. Mutations in the sister chromatid cohesion factor genes NIPBL, SMC1A (also called SMC1L1) and SMC3 have been suggested as probable cause of this syndrome. We experienced a case of newborn with CdLS showing bushy eyebrows and synophrys, long curly eyelashes, long philtrum, downturned angles of the mouth and thin upper lips, cleft palate, micrognathia, excessive body hair, micromelia of both hands, flexion contracture of elbows and hypertonicity. We detected a NIPBL gene mutation in a present neonate with CdLS, the first report in Korea.

Síndrome de Cornelia de Lange / Cornelia de Lange syndrome

El Síndrome de Cornelia de Lange (SCL) es un cuadro malformativo poco frecuente, caracterizado por la presencia de retraso del crecimiento, microcefalia, retardo mental, hirsutismo, dismorfias faciales características y defectos en las extremidades. Se estima una incidencia de 1:10.000 a 1:40.000 recién nacidos vivos, siendo la mayoría casos esporádicos, aunque algunos pocos se han publicado con una herencia de tipo autosómico dominante. Existen dos genes responsables del SCL: el NIPBL, que ha sido recientemente identificado y mapeado en 5p13.1, y el SMC1L1 en Xp11.22 –p11.21, descubierto también recientemente en varios sujetos afectados y con herencia ligada al X. Mutaciones en el gen NIPBL se han encontrado en el 40 por ciento a 50 por ciento de los pacientes afectados clínicamente por el cuadro. En esta revisión presentamos el caso de una paciente de seis años de edad, con diagnóstico clínico de SCL, con el objetivo de dar a conocer esta patología malformativa, que forma parte del diagnóstico diferencial de los cuadros clínicos con retardo mental.

Cornelia de Lange Syndrome (CdLS) is a rare malformative disease. It is characterized by the presence of growth retardation, microcephaly, mental retardation, hirsutism, facial alterations and defects in the extremities. Incidence is 1:10,000 to 1:40,000 in newborns. Most cases are sporadic, although some cases have been published with autosomal dominant inheritance. Two recently identified genes are responsible for CdLS: NIPBL, located on 5p13.1, and SMC1L1, located on Xp11.22 –p11.21 and present in several affected subjects, and with X-linked inheritance. Mutations of NIPBL genes are described in 40 to 50 percent of patients. We present the case of a six year old patient, with clinical diagnosis of CdLS, with the purpose of presenting this malformative disease, which is part of the differential diagnosis of clinical manifestations associated to mental retardation.

Relato de trabalho de orientaçäo fonoaudiológica em uma criança portadora de síndrome Cornélia De Lange / Guidance work developed with a Cornelia De Lange Syndrome's baby

O objetivo do estudo é apresentar o trabalho de orientaçäo desenvolvido com uma criança pequena portadora da Síndrome Cornélia De Lange, atendida quinzenalmente. Säo discutidas as características genéticas e físicas da síndrome e suas implicaçöes no desenvolvimento geral da criança, Os resultsdos obtidos mostraram que esse tipo de intervençäo utilizada no processo terapêutico fonoaudiológico é viável e eficiente

Sindrome de Brachmann-de Lange: diagnóstico objetivo / Brachmann-de lange syndrome: objective diagnosis

Se aplica el índice diagnóstico de Preus y Rex a pacientes peruanos diagnosticados clínicamente con retardo mental de etiología diversa y con controles normales y con rasgos fenotípicos similares, para demostrar que el índice es aplicable como método diagnóstico en nuestro medio. Se recomienda su uso para permitir el diagnóstico objetivo y comparable del síndrome.

Síndrome de Cornélia de Lange / De Lange's syndrome

Relata-se caso de Síndrome de Cornélia de Lange em paciente de 1 ano e 5 meses. Trata-se de síndrome com mal formaçöes e retardamento, etiologicamente obscura, com dismorfismo facial característico, nanismo primoridal e anomalias ao nível de extremidades

Síndrome de Cornelia De Lange: revisäo e relato de um caso / Cornelia De Lange syndrome: review and report of a case

O artigo traz uma breve revisäo da Síndrome de Cornelia de Lange, onde o autor enfatiza os achados de inspeçäo clínica necessários ao diagnóstico, apresentando um caso novo que foi relatado no Hospital Infantil Darci Vargas

Síndrome de Cornelia de Lange / Cornelia de Lange syndrome

Se describe una lactante femenina, de 14 meses de edad, estudiada en el Departamento de Pediatría del Hospital Central de Valencia por presentar retardo importante, pondo estatural, psicomotriz y óseo con estigmas fenotípicos característicos del Síndrome de Lange. Los estudios genéticos y endocrinológico fueron normales. El caso descrito no tiene un patrón de transmisión hereditaria establecido y aceptado. Sin embargo algunos casos reportados en la literatura mundial se han presentado en una misma hermandad como producto de uniones consaguíneas. Este caso entraría en esta situaión planteándose la posibilidad de una herencia Autosómica Recesiva aún cuando parece hacer heterogeneidad genética en las causas que puedan originar este fenotipo