Clinical characteristics and gene analysis of SMC1A gene related disorders / 中华神经科杂志

Objective:To analyze the clinical characteristics and genetic features of SMC1A gene related disorders. Methods:The data of 5 children with SMC1A gene variants were collected from Children′s Hospital of Fudan University from February 2018 to January 2022. The clinical features, electroencephalogram (EEG), brain imaging and gene testing results were summarized. Results:Among the 5 patients, 4 are females and 1 is male. Two female cases are siblings. One boy had dysmorphic features, consisting of bilateral ptosis, synophrys, a short nose and upturned nasal tip. He also had patent foramen ovale plus atrial septal defect, unilateral cryptorchidism and microcephaly. Three cases had microcephaly. Two girls had patent foramen ovale, and 2 girls had microcephaly. Four cases had epilepsy, and age at seizure onset ranged from 2 to 52 months. Multiple seizure types were observed, including bilateral tonic clonic seizures in 2 patients, and focal seizures in 3 patients. The seizures in 3 cases were in cluster. All patients had developmental delay, including 1 patient with mild and 4 patients with moderate to severe developmental delay. Three patients had slow background activity in EEG. Interictal EEG showed abnormal discharges in 4 patients, including focal discharges in 3 cases and generalized discharges in 1 case. Brain magnetic resonance imaging was normal in 3 patients and showed mild cortical thickening in 1 case. All cases harbored 4 SMC1A gene variants, including 2 missense variants and 2 frameshift variants (c.580_587del, c.2699delG, c.3362G>A, c.1486C>T). Three cases harbored heterozygous SMC1A variants and 2 cases carried somatic mosaic SMC1A variants with 17.5% and 88.1% mosaicism in peripheral blood. The follow-up lasted for 3 months to 4 years. The epilepsy was refractory in 2 cases. During the follow-up, all cases had very slow developmental progress or developmental retardation. All cases had different levels of growth retardation. The scores of Cornelia de Lange syndrome (CdLS) phenotypes in 5 cases were 2-6. One case had the combined phenotypes of atypical CdLS and developmental epileptic encephalopathy (DEE). The phenotype was atypical CdLS in 1 case and DEE in 1 case. The phenotypes of 2 cases with SMC1A missense variants were mild, manifesting as non-refractory epilepsy and moderate to severe developmental delay. Conclusions:All of cases with SMC1A gene variants have developmental delay. Most of the patients have clusters of seizures and some dysmorphisms. The phenotypes of SMC1A gene related disorders are diverse. Except CdLS and DEE, there are some patients with mild phenotype due to missense variants of SMC1A gene.

A Rare Case of Cornelia de Lange Syndrome Achieving Intracardiac Repair of Tetralogy of Fallot Following Ectopic Patent Ductus Arteriosus Banding / 日本心臓血管外科学会雑誌

We describe the case of a 1-year and 7-month-old girl who was born at 36 weeks and 6 days of pregnancy weighing 1,351 g. In addition to the diagnosis of Cornelia de Lange syndrome and Tetralogy of Fallot, we confirmed shunt blood flow from the lesser curvature of the aortic arch to the main pulmonary artery. Thus, we additionally diagnosed ectopic patent ductus arteriosus (PDA). Ultrasonography showed interruption and retrograde flow of the diastolic blood flow in the anterior cerebral artery. Therefore, we made a diagnosis of blood stealing due to an ectopic PDA, and we performed surgical intervention via a median sternotomy at 25 days. When we ligated the shunt blood vessel, the percutaneous oxygen saturation decreased from the high 90% range to the low 70% range, thus we temporarily released the ligation. We narrowed the ectopic PDA so that the percutaneous oxygen saturation could be maintained the high 80% range. Postoperative ultrasonography showed improvement of the pressure waveform in the anterior cerebral artery. After discharge, oxygen demand increased gradually with weight gain, and we performed intracardiac repair using a monocusp valve patch at 1 year and 7 months. We report a rare case of Cornelia de Lange syndrome wherein we achieved intracardiac repair of Tetralogy of Fallot after ectopic PDA banding in the neonatal period.

Cornelia de Lange syndrome with recurrent seizures and SMC1A gene c. 2923C > T mutation: a case report and literature review / 中华实用儿科临床杂志

Objective:To explore the characteristics, clinical manifestations and gene mutation types of Cornelia de Lange syndrome (CdLs), and to improve the understanding of the disease.Methods:Clinical data and gene test results of a pediatric case of CdLs diagnosed in the First Affiliated Hospital of Xinxiang Medical University in August 2019 were analyzed retrospectively.Results:A female patient with 2 years and 8 months old presented a special appearance with a low and flat nose, a wide eye distance, audition ears, a downward inclination of the mouth corner, a high arch of the jaw and a small jaw deformity, who had recurrent seizures, speech and mental retardation.The result of gene test showed the mutation of SMC1A gene c. 2923C > T, and thus the patient was diagnosed as type 2 CdLs. Conclusions:CdLs is a rare genetic metabolic disease with special facial features and physical signs.There is only one case of CdLs with gene mutation of SMC1A in China through literature review.The mutation of SMC1A gene c. 2923C>T in CdLs cases has not been reported at home and abroad, which expands the variation spectrum of the SMC1A gene.

Audiological profile of individuals with Cornelia de Lange syndrome: an integrative review / Perfil audiológico de indivíduos com síndrome de Cornelia de Lange: revisão integrativa da literatura

ABSTRACT Purpose: to describe the audiological profile of patients with Cornelia de Lange syndrome (CdLS) in an integrative review of the literature. Methods: after developing the research question, articles were searched in six databases (EMBASE, ISI of Knowledge, LILACS, MEDLINE/PubMed, SciELO, and Scopus) and in sources of information (Google Scholar, OpenGrey, and ProQuest), with the following descriptors: audiology, hearing loss, deafness, hearing disorders, and Cornelia de Lange syndrome. This review was registered in Prospero under number CRD42020191481. National and international studies were considered for analysis, using the PECO acronym. The risk of bias in the studies was analyzed with Joanna Briggs Institute protocols. Then, the studies were described and analyzed. Results: of the 1,080 articles found, 12 met the inclusion criteria. Audiological results showed that individuals with CdLS can have hearing loss - conductive hearing losses were the most frequent impairments, corresponding to 49.20% of individuals with CdLS assessed, followed by sensorineural hearing losses (13.49%). The degrees of hearing loss ranged from mild to profound. Conclusion: individuals presented with CdLS often have hearing loss, mainly due to middle ear changes, with degrees ranging from mild to profound.

RESUMO Objetivo: descrever o perfil audiológico de pacientes com Síndrome de Cornelia de Lange (SCdL), por meio de uma revisão integrativa da literatura. Métodos: após formulação da pergunta, realizou-se uma busca em seis bases de dados (Embase, ISI of Knowledge, Lilacs, Medline/PubMed, Scielo e Scopus), e fontes de informação (Google Acadêmico, OpenGrey e Proquest), com os descritores: audiologia, perda auditiva, surdez, transtornos da audição e Síndrome de Cornelia de Lange. Esta revisão foi cadastrada no Próspero, sob número CRD42020191481. Foram considerados para análise, estudos nacionais e internacionais, utilizando o direcionamento do acrônimo PECO. Para análise do risco de viés dos estudos, utilizou-se os protocolos do Instituto Joanna Briggs. Após isso, os estudos foram descritos e analisados. Resultados: dos 1.080 artigos encontrados, 12 atenderam aos critérios de inclusão. Nos resultados audiológicos, constatou-se que indivíduos com SCdL podem apresentar perda auditiva, sendo que o comprometimento pela perda auditiva condutiva foi o mais frequente, correspondendo a 49,20% dos indivíduos com SCdL avaliados, seguido pela perda auditiva neurossensorial (13,49%). O grau de perda auditiva variou de leve à profundo. Conclusão: indivíduos com SCdL frequentemente apresentam perda auditiva, decorrente principalmente de alterações de orelha média, com graus variando de leve a profundo.

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.

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

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.

Tratamiento rehabilitador a un paciente con síndrome de Cornelia de Lange / Rehabilitation Treatment to a Patient with Cornelia de Lange Syndrome

Se presentó un paciente de un año de edad con síndrome Cornelia de Lange, único recibido en el Servicio de Rehabilitación del Policlínico Docente René Vallejo Ortiz del municipio Manzanillo, provincia Granma, con signos evidentes de retraso del desarrollo psicomotor, remitido al servicio por su médico de familia cuando tenía seis meses de nacido. Para su tratamiento se emplearon técnicas específicas de la estimulación temprana, se lograron pequeños avances en su desarrollo motor y cognitivo, aunque no solo depende de la rehabilitación, sino también del entorno familiar en el cual se va desarrollando el niño. Se lograron pequeños avances motores en el paciente como: sostén cefálico, abertura de las manos y seguimiento de los objetos con la mirada, el paciente continúa rehabilitándose en el servicio de fisiatría.

A one -year-old patient with Cornelia de Lange syndrome (SCdL) was presented in this article, who was the only one attended in the service of rehabilitation of the René Vallejo Ortiz teaching polyclinic of Manzanillo municipality, Granma province. The patient had evident signs of late psychomotor development, so he was referred to this service by the family doctor when he was six months of age. For the treatment, specific techniques of early stimulation were used; small advances have been achieved regarding motor and cognitive development, although it not only depends on the rehabilitation, but also depends on the family environment, in which the infant is developing. Not many motors progresses were achieved in the patient such as: cephalic support, opening of the hands and objects pursuit followed by the eyes. The patient continues rehabilitating in the physiotherapy service.

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.

Genetic analysis of Cornelia de Lange syndrome in one case / 临床儿科杂志

Objective To explore the clinical features and gene mutation types of Cornelia de Lange syndrome (CdLS), an inherited metabolic disease. Methods The clinical data and gene detection results of one case of CdLS were retrospectively analyzed. Results Two-year-old male had special appearance, microcephaly, bushy eyebrows with both sides meeting in the midline, long curly eyelashes, low body mass, and motor and mental retardation. NIPBL gene detection found the variation of the nucleotide in c.7176T>A (nucleotide 7176 in coding region changed from T to A). Conclusions CdLS is a rare congenital inherited metabolic disease. The clinical manifestations were special appearance and signs. The c.7176T>A mutation in NIPBL gene has not been reported at home and abroad.

Síndrome de Cornelia. Presentación de caso de enfermería vinculado a la teoría de Ida Orlando / Cornelia de Lange syndrome. Presentation of a case of nursery related with Ida Orlando theory

En 1933, una pediatra holandesa, la Dra. Cornelia de Lange, describía dos niños con rasgos similares, hoy en día es ella a quien se le reconoce el haber descrito los síntomas que abarcan el síndrome que lleva su nombre. Es un trastorno malformativo múltiple congénito, se determina por sus características faciales en asociación con retraso del crecimiento pre y postnatal, retraso mental de nivel variable, en algunos casos, anomalías de las partes superiores, muchos de los síntomas se pueden mostrar en el nacimiento y a muy temprana edad. El proceso de atención de enfermería, es el método científico de actuación de los profesionales de Enfermería, vinculado a una base teórica que desarrollan habilidades analíticas que aplicadas en la práctica, repercuten en la mejoría de los pacientes. Se realizó este trabajo con el objetivo de presentar un caso poco frecuente del síndrome de Cornelia de Lange, ejecutando el proceso de atención de Enfermería vinculado al modelo teórico de Ida Orlando. Se trató de una paciente de 10 meses de edad, sexo femenino, raza blanca, que ingresó a los dos meses de nacida en la sala de terapia intensiva del Hospital Pediátrico Provincial Eliseo Noel Caamaño, de Matanzas. La vinculación de la teoría de Ida Orlando a este proceso de atención de Enfermería permitió una atención integral al individuo enfermo, y desarrolló las habilidades prácticas de la asistencia de Enfermería, además de fomentar el razonamiento critico en aras de brindar cuidados con calidad y enfoque científico.

In 1933, a Dutch pediatrician, PhD Cornelia de Lange described two children with similar characteristics. Nowadays she is recognized as the one who described the symptoms encompassing the syndrome named after her. It is a congenital multiple malformative disorder, determined by its facial characteristics associated to pre and postnatal grow retardation, mental retardation of variable level, and, in some cases, anomalies of the upper parts. Many of the symptoms appear at birth and at early ages. The process of nursery care is the scientific method ruling Nursery professionals’ performance, related to a theoretical basis and developing analytical skills that, practically applied, strike on patients’ improvement. This work was carried out with the aim of presenting a few frequent case of Cornelia de Lange Syndrome, performing the Nursery care process according to Ida Orlando theoretical model. It deals with female, white, 10-months patient who entered the Intensive Care Service of the Provincial Pediatric Hospital “Eliseo Noel Caamaño”, of Matanzas when she was two months. Relating Ida Rolando’s theory to this Nursery care process allowed the patient’s integral care, and developed the practical skills of Nursery care, besides promoting the critical reasoning for the sake giving a quality and scientifically focused care.

Progress in cornelia de lange syndrome / 国际儿科学杂志

Cornelia de Lange syndrome is a rare congenital disease,which was firstly reported on 1933.It usually causes multiple organs dysplasia.Clinical manifestations include severe growth retardation,cogni-tive impairment,characteristic facial and upper limb defects.With the rapid development of medical science,es-pecially in genetics and molecular biology,much research on the pathogenesis of Cornelia De Lange syndrome has been performed.Herein,we review the progress in this rare disease in recent years.

Cornelia De- Lange Syndrome: A Case Report.

Cornelia de Lange syndrome (CDLS) is a congenital disorder involving skeletal, craniofacial deformities together with gastrointestinal and cardiac malformations. Here with, dental management of a case with CDLS syndrome is described.

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...

Nucleotide sequence analysis of NIPBL gene in Indian Cornelia de Lange syndrome cases.

BACKGROUND: Cornelia de Lange syndrome (CdLS) is a multisystem developmental disorder in children. The disorder is caused mainly due to mutations in Nipped-B-like protein. The molecular data for CdLS is available from developed countries, but not available in developing countries like India. In the present study, the hotspot region of NIPBL gene was screened by Polymerase Chain Reaction which includes exon 2, 22, 42, and a biggest exon 10, in six CdLS patients and ten controls. MATERIALS AND METHODS: The method adopted in present study was amplification of the target exon by using polymerase chain reaction, qualitative confirmation of amplicons by Agarose Gel Electrophoresis and use of amplicons for Conformation Sensitive Gel Electrophoresis to find heteroduplex formation followed by sequencing. RESULTS: We report two polymorphisms in the studied region of gene NIPBL. The polymorphisms are in the region of intron 1 and in exon 10. The polymorphism C/A is present in intron 1 region and polymorphism T/G in exon 10. CONCLUSION: The intronic region polymorphism may have a role in intron splicing whereas the polymorphism in exon 10 results in amino acid change (Val to Gly). These polymorphisms are disease associated as these are found in CdLS patients only and not in controls.

Cornelia de lange syndrome.

BACKGROUND: Cornelia de Lange syndrome (CDLS) is a rare multiple congenital anomaly syndrome characterized by a distinctive facial appearance, developmental delay, growth retardation, low birth weight, skeletal formation anomaly, and hirsutism. CASE: Here for the first time a case of CDLS from Iran, a 15-week-old male infant who was refereed as a case of multiple congenital anomalies. Clinical investigation showed that the child was a case of CDLS. CONCLUSION: This is the first case report with CDLS in Iran.