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Cornelia de Lange Syndrome (CdLS) is a multisystem birth defects disorder that affects every tissue and organ system in the body. Understanding the factors that contribute to the origins, prevalence, and severity of these developmental defects provides the most direct approach for developing screens and potential treatments for individuals with CdLS. Since the majority of cases of CdLS are caused...
This report describes a male child with a history of poor feeding and swallowing problems, hypotonia, mild bilateral sensorineural hearing loss, cerebral cortical agenesis, cardiac defects, cyanotic episodes triggered by specific movement, dysmorphic features, and developmental delays. Analysis by CytoScan HD array identified a 12.1 Mb interstitial deletion of 7q22.1q31.1 (98,779,628–110,868,171)...
There is an abundance of information in the literature on patient experiences with Internet support groups (ISGs). However, studies exploring these experiences in a rare disease population are scarce, even though these families are often at a disadvantage for resources, reliable information, and support. The aim of the current study was to explore the experiences with ISGs for parents of children...
Cornelia de Lange syndrome (CdLS) is a well‐described multisystem developmental disorder characterized by dysmorphic facial features, growth and behavioral deficits, and cardiac, gastrointestinal, and limb anomalies. The limb defects seen in CdLS can be mild, with small feet or hands only, or can be severe, with variable deficiency defects involving primarily the ulnar structures and ranging from...
Distal deletion of the long arm of chromosome 10 with breakpoints mapped at 10q26 is a well‐recognized contiguous genomic disorder. A wide spectrum of clinical findings is seen in affected individuals and the common clinical features include craniofacial dysmorphia, developmental delay, intellectual disability, hypotonia, cardiovascular defects, and urogenital malformations. We report herein on a...
Cohesin is a multiprotein complex involved in many DNA‐related processes such as proper chromosome segregation, replication, transcription, and repair. Mutations in cohesin gene pathways are responsible for human diseases, collectively referred to as cohesinopathies. In addition, both cohesin gene expression dysregulation and mutations have been identified in cancer. Cohesinopathy cells are characterized...
Discovery of genetic alterations that cause human birth defects provide key opportunities to improve the diagnosis, treatment, and family counseling. Frequently, however, these opportunities are limited by the lack of knowledge about the normal functions of the affected genes. In many cases, there is more information about the gene's orthologs in model organisms, including Drosophila melanogaster...
Cornelia de Lange syndrome is a well‐known multiple congenital anomalies/intellectual disability syndrome with genetic heterogeneity and wide clinical variability, regarding the severity of both the intellectual disabilities and the physical features, not completely explained by the genotype‐phenotype correlations known to date. The aim of the study was the identification of prognostic features,...
Medical cytogenetics, genetic diagnostics, and medical genetics had their origins in the late 1950's, as evaluation of human chromosomes became possible, and it was recognized that chromosomal abnormalities could cause a variety of clinical phenotypes. Dr. Laird Jackson began his medical and scientific career just as this field was emerging and he was an early adopter and driver of several key trends...
The potential to use fetal cells in the mother's circulation during the first or second trimester for prenatal diagnosis was described in 1968, but it has not been possible do develop a routine clinical prenatal test despite extensive commercial and academic research efforts. Early attention focused on the detection of aneuploidy, but more recent technology opens the possibility of high resolution...
Cornelia De Lange syndrome (CdLS) is a rare congenital disease characterized by typical facial dysmorphism, developmental disability, and limb deficiency defects. Various congenital malformations and medical complications have been described with gastroesophageal reflux as the major one. CdLS patients often require multiple high‐risk anesthetic procedures. At San Gerardo Hospital (Monza, Italy) the...
We report on a 4‐year‐old female who presented with unilateral sensorineural hearing loss and a concern for developmental delay. A genome‐wide SNP array analysis was performed and revealed a de novo 3.2 Mb interstitial deletion of chromosome 7q31.2q31.31. This region contains thirteen protein‐encoding genes. It is unknown whether haploinsufficiency of any of these genes is responsible for the clinical...
Given the clinical complexities of Cornelia de Lange Syndrome (CdLS), the Center for CdLS and Related Diagnoses at The Children's Hospital of Philadelphia (CHOP) and The Multidisciplinary Clinic for Adolescents and Adults at Greater Baltimore Medical Center (GBMC) were established to develop a comprehensive approach to clinical management and research issues relevant to CdLS. Little work has been...
Cornelia de Lange syndrome (CdLS) is a rare genetic disorder characterized by growth retardation, intellectual disability, limb defects, typical facial dysmorphism, and other systemic involvement. Sleep disturbances have been frequently reported in CdLS, but these have not been completely characterized, and prevalence data are conflicting. The aim of this paper is to characterize and determine the...
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