Manejo odontológico en paciente con síndrome de Cornelia de Lange / Dental treatment of a patient with Cornelia de Lange syndrome

El síndrome de Cornelia de Lange (SCdL) es un trastorno genético poco frecuente y se atribuye principalmente a mutaciones en los genes NIPBL, SMC3 y SMC1A. Sus principales características clínicas son múltiples anomalías congénitas, dimorfismo facial, hirsutismo, hipertricosis, retraso psicomotor, discapacidad intelectual, restricción del crecimiento prenatal y postnatal, anomalías de manos y pies, así como malformaciones congénitas que afectan a distintos órganos. En pacientes con SCdL es necesario hacer hincapié en la higiene oral debido a la discapacidad intelectual que puede presentarse y asegurarse de que se realiza una adecuada valoración y saneamiento dental de forma periódica con el fin de prevenir enfermedades bucodentales. El objetivo de este reporte de caso es describir el manejo odontológico de un paciente de 10 años con SCdL y revisar las características clínicas y hallazgos radiológicos presentes en la cavidad oral (AU)

Cornelia de Lange syndrome (CdLS) is a rare genetic disorder and is principally attributed to mutations in the NIPBL, SMC3 and SMC1A genes. The main clinical characteristics are multiple congenital anomalies, facial dimorphism, hirsutism, hypertrichosis, psychomotor retardation, intellectual disability, prenatal and postnatal growth restriction, hand and foot anomalies, as well as congenital malformations affecting different organs. In patients with CDLS, it is necessary to focus on oral hygiene due to the intellectual disability that may be present and to ensure that adequate dental valuation and hygiene is routinely performed in order to prevent oral diseases. The aim of this case report is to describe the dental management of a 10-year-old patient with CDLS and review the clinical characteristics and radiological findings that are present in the oral cavity (AU)

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 y su relación con la erupción dentaria: análisis caso clínico / Analisar o caso de um paciente com síndrome de Cornelia de Lange e sua relação com la erupção dentária / Dental eruption aspects of Cornelia de Lange syndrome: case report

El Síndrome de Cornelia de Lange (SCDL), es una anomalía genética cuya prevalencia es de 1:62.000- 1:45.000 de los nacimientos. Se atribuye principalmente a mutaciones en los genes NIPBL, SMC3 y SMC1A. Se caracteriza por presentar alteraciones físicas generales, alteración cognitiva y del lenguaje; y rasgos orofaciales como la sinofridia, hirsutismo, también existe maloclusión, retardo de la erupción, apiñamiento, anodoncia, malformación de las extremidades, retraso del desarrollo pre y postnatal y otras malformaciones congénitas. Objetivo: Analizar el caso de paciente con síndrome de Cornelia de Lange y su relación con algunos hallazgos reportados en la literatura especialmente la erupción dentaria. Se presenta paciente lactante femenina de 2 años y 5 meses, procedente de Valencia, con diagnóstico genético de Síndrome de Cornelia de Lange, plumbemia, y litiasis biliar, que acude a la consulta del Postgrado de Odontopediatría de la Universidad de Carabobo por presentar retardo en la erupción dentaria. Se realiza historia clínica, examen clínico general donde se observa retraso psicomotor, del lenguaje y características fenotípicas propias del síndrome. A la evaluación clínica intrabucal se observa rebordes gingivales con inserción normal de frenillos y ausencia de unidades dentarias (retardo de erupción). La erupción dentaria puede verse afectada en pacientes con diagnóstico de Síndrome de Cornelia de Lange, tanto en su cronología como en la secuencia de erupción.

A síndrome de Cornelia de Lange (SCDL) é uma anormalidade genética com prevalência de 1: 62.000-1: 45.000 de nascimentos. É atribuído principalmente a mutações nos genes NIPBL, SMC3 e SMC1A. Caracteriza-se por apresentar alterações físicas gerais, alteração cognitiva e de linguagem; e características orofaciais, como sinofrídios, hirsutismo, também há má oclusão, erupção retardada, aglomeração, anodontia, malformação de membros, atraso no desenvolvimento pré-natal e pós-natal e outras malformações congênitas. Objetivo: Analisar o caso de um paciente com síndrome de Cornelia de Lange e sua relação com alguns achados relatados na literatura, principalmente erupção dentária. Apresentamos uma paciente de enfermagem de Valência com 2 anos e 5 meses de idade, com diagnóstico genético da síndrome de Cornelia de Lange, plumbemia e litíase biliar, que compareceu à consulta de pós-graduação em Odontopediatria da Universidade de Carabobo por apresentar atraso erupção dentária. História clínica, exame clínico geral, onde são observados retardo psicomotor, linguagem e características fenotípicas da síndrome. Uma avaliação clínica intraoral mostra sulcos gengivais com inserção normal de aparelho e ausência de unidades dentárias (erupção tardia). A erupção dentária pode ser afetada em pacientes diagnosticados com Síndrome de Cornelia de Lange, tanto na cronologia quanto na sequência da erupção.

Cornelia de Lange Syndrome (SCDL) is a genetic abnormality with a prevalence of 1: 62,000- 1: 45,000 of births. It is mainly attributed to mutations in the NIPBL, SMC3 and SMC1A genes. It is characterized by presenting general physical alterations, cognitive and language alteration; and orofacial features such as sinofridia, hirsutism, there is also malocclusion, delayed eruption, crowding, anodontia, limb malformation, prenatal and postnatal developmental delay, and other congenital malformations. Objective: To analyze the case of a patient with Cornelia de Lange syndrome and its relationship with some findings reported in the literature, especially dental eruption. We present a 2-year-old and 5-month-old female nursing patient from Valencia with a genetic diagnosis of Cornelia de Lange Syndrome, plumbemia, and biliary lithiasis, who attended the Pediatric Dentistry Postgraduate consultation at the University of Carabobo for presenting delay in tooth eruption. Clinical history, general clinical examination where psychomotor retardation, language and phenotypic characteristics of the syndrome are observed. A clinical intraoral evaluation shows gingival ridges with normal insertion of braces and absence of dental units (delayed eruption). The dental eruption can be affected in patients diagnosed with Cornelia de Lange Syndrome, both in its chronology and in the eruption sequence.

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.

Phenotypic and mutation analysis of a fetus with Cornelia de Lange syndrome Ⅰ / 中华医学遗传学杂志

OBJECTIVE@#To carry out genetic testing for an abortus suspected with Cornelia de Lange syndrome (CdLS).@*METHODS@#History of gestation and the family was taken. Combined with prenatal ultrasonography and the phenotype of the abortus, a diagnosis was made for the proband. Fetal tissue and peripheral blood samples of its parents were collected for the extraction of genomic DNA. Whole exome sequencing was carried out to detect mutations related to the phenotype. Suspected mutations were verified in the parents through Sanger sequencing.@*RESULTS@#Prenatal ultrasound found that the forearms and hands of the fetus were anomalous, in addition with poorly formed vermis cerebellum, slight micrognathia, and increased echo of bilateral renal parenchyma. Examination of the abortus has noted upper limb and facial malformations. Whole exome sequencing revealed that the fetus carried a heterozygous c.2118delG (p.Lys706fs) frameshift mutation of the NIPBL gene. The same mutation was not found in either parent.@*CONCLUSION@#The heterozygous c.2118delG (p.Lys706fs) frameshift mutation of the NIPBL gene probably underlies the CdLS in the fetus. Above finding has provided a basis for the genetic counseling for the family.

A case of neonatal Cornelia de Lange syndrome caused by a novel variant of SMC1A gene / 中华医学遗传学杂志

OBJECTIVE@#To explore the genetic etiology of a neonate with suggestive features of Cornelia de Lange Syndrome (CdLS).@*METHODS@#Chromosome karyotyping, copy number variation sequencing (CNV-seq) and whole exome sequencing (WES) were carried out for the child. Meanwhile, peripheral venous blood samples were taken from his parents for verifying the suspected pathogenic variants detected in the child.@*RESULTS@#The child has exhibited developmental delay, microcephaly, ptosis, micrognathia, and low ear setting, and was suspected as CdLS. No abnormality was found by karyotyping and CNV-seq analysis. WES has detected 5 heterogeneous variants and 1 hemizygous variant on the X chromosome. Combining the genetic pattern and result of family verification, a hemizygous C.3500T>C (p.ile1167thr) of the SMC1A gene was predicted to underlay the clinical manifestations of the patient. This variant was not recorded in the dbSNP and gnomAD database. PolyPhen2, Provean, SIFT all predicted the variant to be harmful, and PhastCons conservative prediction is was a conservative mutation. ACMG variant classification standard evidence supports are PM2, PP2, and PP3.@*CONCLUSION@#The novel c.3500T>C (p.Ile1167Thr) missense mutation of the SMC1A gene probably underlay the genetic etiology of CdLS in this child. Above results has enriched the mutation spectrum of CdLS type II, and facilitated clinical counseling for this family.

Disfagia orofaríngea em crianças com síndrome Cornélia De Lange: série de casos / Orofarineal dysfunction in children with the Cornélia De Lange Syndrome: series of cases / Disfagia orofaríngea en niños con síndrome de Cornelia De Lange: serie de casos

Introdução: A síndrome Cornélia De Lange (CdLS) é caracterizada por ser polimalformativa que envolve anomalias faciais, atraso de crescimento e desenvolvimento psicomotor, alterações comportamentais e malformações associadas. Sabe-se que as crianças acometidas por essa síndrome apresentam alterações de deglutição, mas são poucos os estudos apresentados na literatura devido à raridade da doença, sendo encontrado relato de um caso, e na maioria das vezes, com descrição dos achados. Objetivo: Identificar as alterações de deglutição em crianças com a Síndrome Cornélia de Lange, por meio da videofluoroscopia. Metodologia: Série de Casos, retrospectiva. Trata-se de uma amostra de conveniência com crianças, diagnosticadas com Síndrome Cornélia de Lange, que apresentassem videofluoroscopia da deglutição. Foram excluídos prontuários de pacientes que não estivessem completos. Os dados de caracterização da amostra foram obtidos através de prontuários físicos e os dados de desfecho do estudo através de laudos clínicos de videofluoroscopias da deglutição dos pacientes. Resultados: Dos 6 indivíduos, 5 do sexo masculino, em que 3 (50%) apresentaram aspiração laringotraqueal, de forma silente. A mediana de idade foi de 5,50 meses. Conforme os achados nas videofluoroscopias da deglutição, identificou-se dificuldades de deglutição como escape posterior prematuro de alimento, ejeção ineficiente e dificuldades de formação do bolo alimentar, como atraso no acionamento da reação faríngea, refluxo para nasofaringe, estase em valéculas e seios periformes e aspiração traqueal. Conclusão: Todas as crianças com Síndrome Cornélia de Lange deste estudo apresentaram disfagia em algum grau, e metade delas apresentou aspiração laringotraqueal de forma silente.

Introduction: Cornélia De Lange Syndrome (CdLS) is characterized by being polymalformative that involves facial anomalies, growth and psychomotor development retardation, behavioral changes and associated malformations. It is known that children affected by this syndrome have swallowing disorders, but there are few studies presented in the literature due to the rarity of the disease, with a case report being found and mostly with description of the findings. Objective: To identify swallowing disorders in children with Cornelia de Lange Syndrome, through videofluoroscopy. Methodology: Case series, retrospective. This is a convenience sample with children, diagnosed with Cornelia de Lange Syndrome, who had swallowing videofluoroscopy. Medical records of patients who were not complete were excluded. The sample characterization data were obtained from physical records and the study outcome data through clinical reports of patients' swallowing videofluoroscopies. Results: Of the 6 individuals, 5 were male, in which 3 (50%) had laryngotracheal aspiration, silently. The median age was 5.50 months. According to the findings in the swallowing videofluoroscopies, swallowing difficulties were identified, such as premature posterior escape of food, inefficient ejection and difficulties in the formation of the bolus, such as delay in triggering the pharyngeal reaction, reflux to the nasopharynx, stasis in the valleys and peripheral sinuses and tracheal aspiration. Conclusion: All children with Cornelia de Lange Syndrome in this study had dysphagia to some degree, and half of them had silent laryngotracheal aspiration.;Introducción: El síndrome de Cornélia De Lange (CdLS) se caracteriza por ser polimalformativo que involucra anomalías faciales, retraso del crecimiento y desarrollo psicomotor, cambios de comportamiento y malformaciones asociadas. Se sabe que los niños afectados por este síndrome presentan trastornos de la deglución, pero existen pocos estudios presentados en la literatura debido a la rareza de la enfermedad, encontrándose un reporte de caso y la mayoría de las veces con descripción de los hallazgos.

Objetivo: identificar los trastornos de la deglución en niños con síndrome de Cornelia de Lange, mediante videofluoroscopia. Metodología: Serie de casos, retrospectiva. Se trata de una muestra de conveniencia con niños, diagnosticados de Síndrome de Cornelia de Lange, que habían ingerido videofluoroscopia. Se excluyeron los registros médicos de los pacientes que no estaban completos. Los datos de caracterización de la muestra se obtuvieron de los registros médicos físicos y los datos de los resultados del estudio a través de informes clínicos de videofluoroscopias de deglución de los pacientes. Resultados: De los 6 individuos, 5 eran varones, de los cuales 3 (50%) tenían aspiración laringotraqueal, en silencio. La mediana de edad fue de 5,50 meses. De acuerdo con los hallazgos en las videofluoroscopias de deglución, se identificaron dificultades de deglución, como escape posterior prematuro de alimentos, eyección ineficiente y dificultades en la formación del bolo, como retraso en el desencadenamiento de la reacción faríngea, reflujo a la nasofaringe, estasis en los valles y senos periféricos y aspiración traqueal. Conclusión: Todos los niños con síndrome de Cornelia de Lange en este estudio tenían disfagia en algún grado y la mitad de ellos tenían aspiración laringotraqueal en silencio.

Genetic variant analysis of a neonate with Cornelia de Lange syndrome / 中华医学遗传学杂志

OBJECTIVE@#To detect pathogenic variant in a neonate suspected for Cornelia de Lange syndrome (CdLS).@*METHODS@#Potential mutations of CdLS-related genes (NIPBL, SMC1A, SMC3, RAD21 and HDAC8) were detected by high-throughput target region capture and next-generation sequencing. Suspected variants was verified by Sanger sequencing.@*RESULTS@#The child was found to harbor a heterozygous splice site variant, c.6109-1G>A, of the NIPBL gene. Sanger sequencing suggested that neither parent has carried the same variant, suggesting that it was de novo. The variant was unreported by HGMD and ExAC database, and was predicted to alter an acceptor splicing site. No pathogenic variants of SMC1A, SMC3, RAD21 and HDAC8 genes were detected.@*CONCLUSION@#The heterozygous c.6109-1G>A splicing variant of the NIPBL gene may underlie the disease in this child. Above finding has expanded the variant spectrum of the NIPBL gene.

Identification of a novel missense NIPBL variant in a juvenile with severe type of Cornelia de Lange syndrome / 中华医学遗传学杂志

OBJECTIVE@#To detect pathogenic variant in a juvenile with severe type Cornelia de Lange syndrome (CdLS).@*METHODS@#A 12-year-old female presented with comprehensive developmental retardation and deformity of lower limbs. Genomic DNA was extracted from peripheral blood sample of the patient. Whole exome sequencing was performed to identify pathogenic variants. Putative variant was verified by Sanger sequencing. The impact of variants was predicted and validated by bioinformatic analysis.@*RESULTS@#A de novo missense variant, c.1507A>G (p. Lys503Glu), was found in the NIPBL gene of the proband. The variant was unreported previously and predicted to be pathogenic by PolyPhen-2, MutationTaster and SIFT. Using HomoloGene system, the 503 loci in the NIPBL protein are highly conserved. The change of amino acid (Glu), locating in 503 locus, was found to cause the Neuromodulin_N superfamily domain destroyed, resulting in severe damage to the function of NIPBL protein.@*CONCLUSION@#The de novo missense variant c.1507A>G (p. Lys503Glu) of the NIPBL gene probably underlies the disease in this patient.

Interpretation of the first international consensus for Cornelia de Lange syndrome / 中国当代儿科杂志

Cornelia de Lange syndrome (CdLS) is a genetic syndrome with severe neurodevelopmental disorders as the main manifestation. Its clinical manifestations included mental retardation, typical facial features, intrauterine and postnatal developmental delay, and deformity in multiple organs and systems, with an incidence rate of about 1/10000 to 1/30000. International CdLS Consensus Group was established in 2017 and issued the first international consensus on CdLS, i.e., "Diagnosis and management of Cornelia de Lange syndrome: first international consensus statement", in July 2018. Being developed through a modified Delphi consensus process, this consensus provides guidance on the diagnosis and management of children with CdLS. This article gives an interpretation of this consensus, aiming to help clinicians with early identification, diagnosis, standard follow-up, and management of this disease.

Clinical and genetic analysis of a neonate with Cornelia de Lange syndrome 5 caused by HDAC8 gene mutation / 中华医学遗传学杂志

OBJECTIVE@#To explore the genetic cause of a neonate with congenital dysplasia, growth retardation through clinical evaluation, laboratory tests and next generation sequencing (NGS).@*METHODS@#Peripheral blood samples were obtained from the child and his parents. Whole genomic DNA was extracted and subjected to NGS. Suspected mutation was predicted by bioinformatic tools and validated by Sanger sequencing.@*RESULTS@#The child was found to carry a c.556G>A (p.E186K) mutation of the HDAC8 gene on the X chromosome, which was predicted to be pathogenic by Bioinformatic analysis.@*CONCLUSION@#The patient was diagnosed as Cornelia de Lange syndrome 5 caused by the c.556G>A mutation of the HDAC8 gene.

Identification and prenatal diagnosis of a novel NIPBL mutation underlying Cornelia De Lange syndrome / 中华医学遗传学杂志

OBJECTIVE@#To explore the genetic basis for an infant featuring developmental delay, hand deformity and hypertonia of extremities.@*METHODS@#Clinical data and peripheral blood samples of the proband and her parents were collected. Following DNA extraction, potential mutations were screened on an Ion PGM platform using a gene panel. Suspected mutation was verified by PCR and Sanger sequencing.@*RESULTS@#A novel heterozygous nonsense mutation, c.2521C>T(p.R841X), was identified in the NIPBL gene. The mutation may cause premature termination of translation of the adhesion protein loading factor at 841st amino acids. The same mutation was not found in her parents and 931 healthy controls, and was absent from public databases including ExAC and 1000G. Bioinformatic analysis suggested the mutation to be disease causing.@*CONCLUSION@#The c.2521C>T (p.R841X) mutation of the NIPBL gene probably underlies the Cornelia De Lange syndrome in the infant. Prenatal diagnosis may be provided to this family upon their subsequent pregnancy.

Surgical treatment of esotropia and unilateral ptosis in a patient with Cornelia de Lange syndrome / 영남의대학술지

Cornelia de Lange syndrome (CdLS) is a rare multisystemic disorder that is characterized by mental retardation, prenatal and postnatal growth retardation, limb anomalies, and distinctive facial features, which include arched eyebrows that often meet in the middle (synophrys), long eyelashes, low-set ears, small and widely spaced teeth, and a small and upturned nose. Ophthalmic manifestations include long eyelashes, nasolacrimal duct obstruction, myopia, ptosis, and strabismus. There has been no report of surgical treatment for esotropia and unilateral ptosis in patients with CdLS in Korea. I report a patient with CdLS who underwent surgical treatment for esotropia and unilateral ptosis with a good surgical outcome.

Expression and significance of Shh and Wnt5a genes in Cornelia de Lange syndrome / 中国当代儿科杂志

OBJECTIVE@#To study the expression of Shh and Wnt5a genes in the limb buds of NIPBL fetal rats and the association of these two genes with Cornelia de Lange syndrome (CdLS).@*METHODS@#A total of 72 NIPBL fetal rats were divided into an experimental group and a control group, with 36 rats in each group. The limb buds were collected from 12 fetal rats each on embryonic days 10, 11 and 12 (E10, E11 and E12) respectively. Real-time PCR and Western blot were used to measure the mRNA and protein expression of Shh and Wnt5a.@*RESULTS@#The mRNA and protein expression of Shh and Wnt5a was detected in the limb buds on E10, E11 and E12, and the experimental group had significantly lower expression than the control group (P<0.01). The mRNA and protein expression of Shh and Wnt5a in limb buds was at a low level on E10, followed by an increase on E11 and a reduction on E12, and the expression on E12 was still lower than that on E10 (P<0.01).@*CONCLUSIONS@#The mRNA and protein expression of Shh and Wnt5a are consistent. The pathogenesis of CdLS may be associated with the low mRNA and protein expression of Shh and Wnt5a inhibited by the low expression of NIPBL gene.

A successful dental management in a child with Cornelia de Lange Syndrome: rare case of Cornelia de Lange Syndrome in child / O sucesso do manejo odontológico em criança com Síndrome Cornelia de Lange: um caso raro da Síndrome Cornelia de Lange em criança

Background: the Cornelia de Lange Syndrome (CDLs) is a rare and complex syndrome characterized, basically, by psychomotor retardation associated with a number of congenital malformations. Aims: this paper reports the case of an 11-year-old female child diagnosed with Cornelia de Lange Syndrome (CdLS) and her successful dental management. Case report: the patient had severe mental retardation, definite negative behavior and the clinical findings included oral and physical changes. The patient's oral hygiene was deficient with the presence of calculus and gingivitis, besides several active caries lesions in permanent and deciduous dental elements. The treatment consisted in guidance for caregivers about oral hygiene and diet, and the dental procedures were performed under general anesthesia. Currently, the patient is accompanied by monthly follow-ups. Conclusions: the lack of knowledge about oral hygiene and cariogenic diets was identified as a one of the reasons for the oral diseases present. Due to the need to care for the other more serious and complex health problems, the oral diseases had evolved faster than usual and thus were difficult to treat and maintain thereafter. Under such conditions, the dentist plays a key role within a multidisciplinary team. From the guidance and knowledge provided in the dental clinic, there was a significant improvement in the life quality of the child and her family

Síndrome de Cornélia de Lange e Doença de Graves: uma associação rara / Cornelia de Lange Syndrom and Graves disease: a rare association

Introdução: A síndrome de Cornelia de Lange (SCdL) corresponde a uma condição rara caracterizada por mutações nos genes responsáveis pelas proteínas estruturais e reguladoras do complexo da coesina, levando o paciente à distrofia facial e aos atrasos no crescimento e desenvolvimento. Seu diagnóstico é baseado nos achados clínicos e/ou a identificação da heterozigose patogênica variante em N1PBL, RAD21, ou SMC3 ou homozigose patogênica variante em HDAC8 ou SMC1A. Essa síndrome possui um amplo espectro de manifestações que incluem anormalidades neurológicas, endocrinológicas, musculoesqueléticas e cutâneas. A Doença de Graves, por sua vez, representa o expoente mais comum de hipertireodismo, possui origem autoimune e resulta de uma complexa interação entre fatores genéticos e ambientais. Relato de caso: Este artigo tem por objetivo relatar um caso de uma paciente de 22 anos com diagnóstico de SCdL, a qual abriu o quadro de hipertireoidismo por Doença de Graves, apresentando insônia, irritabilidade e agitação, com melhora após tratamento medicamentoso.

Introduction: The Cornelia de Lange syndrome is a rare condition characterized by mutations in genes responsible for structural and regulatory proteins of the coesin complex, causing facial dystrophy, delays in development and growth. Your Diagnosis is based on clinical findings and/or the identification of a heterozygous pathogenic variant in NIPBL, RAD21 and SMC3 or a hemizyous pathogenic variant in HDAC8 or SMC1A. This syndrome has a wide spectrum of manifestations that includes neurological, endocrinological, muscle-skeletal and cutaneous abnormalities. Graves' disease, in turn, represents the most common etiology of hyperthyroidism; it has an autoimmune origin and results from a complex interaction between genetic and environmental factors. Case report: Therefore, the current study aims to report a case of a 22-year-old female with diagnosis of Graves' disease, presenting insomnia, irritability and restlessness with improvement after drug treatment.

Diagnostico prenatal en Sindrome de Cornelia de Lange a propósito de 2 casos / Prenatal diagnosis in Cornelia de Lange syndrome in 2 cases

RESUMEN El Síndrome de Cornelia de Lange (SCdL) es un trastorno hereditario del desarrollo con transmisión dominante, aunque la mayoría de los casos son esporádicos. La prevalencia es variable oscilando entre 1/10.000-1/100.000 nacimientos. Se caracteriza por un fenotipo facial distintivo, anomalías en las extremidades superiores y retraso del crecimiento y psicomotor. El diagnóstico prenatal de este síndrome está limitado a la detección de anomalías mayores, ya que los rasgos fenotípicos distintivos del mismo no son fácilmente detectables. Suele cursar con aumento de la translucencia nucal, higroma quístico y valores de PAPP-A bajos en el primer trimestre de la gestación; retraso del crecimiento intrauterino, retromicrognatia, anomalías con grado variable de severidad de las extremidades superiores y otras anomalías cardiovasculares, gastrointestinales o genitourinarias que condicionan el pronóstico fetal. Se presentan los hallazgos ecográficos de dos casos con sospecha de afectación por el SCdL, y la correlación entre los mismos y los hallazgos en la necropsia. Al establecer la sospecha diagnóstica de forma retrospectiva, en los casos presentados no fue posible estudiar la presencia de mutaciones genéticas asociadas con el SCdL. A pesar de los avances en el diagnóstico genético de este síndrome, la base genética del mismo es todavía desconocida en alrededor del 30% de los pacientes, lo que sugiere la contribución de otros genes y/o factores ambientales en su etiología.

ABSTRACT Cornelia de Lange Syndrome (CdLS) is an hereditary developmental disorder with dominant condition, although most cases are sporadic. The prevalence is variable ranging from 1/10,000 to 1/100,000 live births. It is characterized by a distinct facial phenotype, upper limb abnormalities, growth retardation and severe mental retardation. Prenatal diagnosis of this syndrome is limited to detecting major abnormalities, since characteristic facial features aren't easily detectable. Is usually associated with increased nuchal translucency, cystic hygroma and low PAPP- A levels in first trimester of pregnancy; intrauterine growth retardation, retromicrognathia, anomalies with varying degrees of severity of upper limbs and other cardiovascular, gastrointestinal or genitourinary abnormalities that affect fetal prognosis. The sonographic findings of two cases with suspected involvement by CdLS, and the correlation between them and necropsy findings are presented. Since the suspected diagnosis was established retrospectively in the presented cases, it wasn't possible to study the association with CdLS gene mutations. Despite advances in genetic diagnosis of this syndrome, the genetic basis of it still unknown in about 30% of patients, suggesting the contribution of other genes and/or environmental factors in its etiology.

Successful difficult airway management using GlideScope video laryngoscope in a child with Cornelia de Lange Syndrome / 영남의대학술지

Management of airway in a child with Cornelia de Lange Syndrome (CdLS) should be given due consideration because most of them have the problems related to difficult airway. The GlideScope video laryngoscope can be attempted during routine intubation, however it is mostly used in case of difficulty. With adequate preoperative airway assessment, we used the pediatric video laryngoscope as useful alternative airway device in a child with CdLS and orotracheal intubation proceeded uneventfully.

A family with X-linked Cornelia de Lange syndrome due to a novel SMC1A missense mutation identified by multi-gene panel sequencing

Cornelia de Lange syndrome (CdLS) is a rare, clinically and genetically heterogeneous, multi-system developmental disorder caused by mutations in genes that encode components of the cohesin complex. X-linked CdLS caused by an SMC1A mutation is an extremely rare disease characterized by phenotypes milder than those of classic CdLS. In the Republic of Korea, based on a literature review, one family with SMC1A-related CdLS with mild phenotypes has been genetically confirmed to date. In this study, we describe the clinical features of a Korean boy with a hemizygous novel missense mutation and his mother with a heterozygous mutation, i.e., c.2447G>A (p.Arg816His) in SMC1A, identified by multi-gene panel sequencing. The proband had a mild phenotype with typical facial features and his mother exhibited a mild, subclinical phenotype. This study expands the clinical spectrum of patients with X-linked CdLS caused by SMC1A variants. Moreover, these findings reinforce the notion that a dominant negative effect in a carrier female with a heterozygous mutation in SMC1A results in a phenotype milder than that in a male patient with the same mutation.