Interstitial deletions of chromosome 22q11.2 are associated with several birth defects and malformations, which include DiGeorge, velocardiofacial, and conotruncal anomaly face syndromes. These were all initially described as separate entities, but are now considered to be part of the spectrum of the same condition. The CATCH22 acronym was proposed to encompass this phenotypic variability, but ...

Chromosome 22q11.2 deletion syndrome, or DiGeorge syndrome, or velocardiofacial syndrome, is one of the most common multiple anomaly syndromes in humans. This syndrome is commonly caused by a microdelection from chromosome 22 at band q11.2. Although this genetic disorder may reflect several clinical abnormalities and different degrees of organ commitment, the clinical features that have driven ...

The craniosynostosis syndromes are a heterogeneous group of sporadic, autosomal dominant disorders with significant clinical overlap. Recently, we described a large family with autosomal dominant craniosynostosis suggestive of SaethreChotzen syndrome, in which linkage to the Saethre-Chotzen syndrome loci on 7p had been excluded. We now report the presence of a mutation in the fibroblast growth ...

OBJECTIVE This study investigates the relationship between anxiety symptoms and adaptive function in children with chromosome 22q11.2 deletion syndrome (22q11.2DS). METHODS Seventy-eight children between 7 and 14 years of age with 22q11.2DS and 36 typically developing (TD) children without known genetic syndromes participated in a larger study of neurocognition. Parents completed questionnair...

The 22q11.2 deletion syndrome (22q11DS) encompasses DiGeorge syndrome, velo-cardio-facial syndrome and conotruncal anomaly face syndrome and is due to a microdeletion of chromosome 22q11.2. This is the most frequent known interstitial deletion found in human with an incidence of 1 in 4,000 live births. A large number of clinical findings have been reported in affected patients, including cardia...

Shared molecular programs govern the formation of heart and head during mammalian embryogenesis. Development of both structures is disrupted in human chromosomal microdeletion of 22q11.2 (del22q11), which causes DiGeorge syndrome (DGS) and velo-cardio-facial syndrome (VCFS). Here, we have identified a genetic pathway involving the Six1/Eya1 transcription complex that regulates cardiovascular an...

Introduction: Differences in structure and function between the two brain hemispheres have generated great interest in neuroscience, revealing the developmental origins of lateralized cognitive functions and hemispheric specialization of neuronal circuitry [4]. Anatomical asymmetries develop in utero and increase during childhood, so any derailment in the course of neurodevelopment may lead to ...

Pfeiffer syndrome is a rare autosomal dominant disorder characterized by coronal craniosynostosis, brachycephaly, mid-facial hypoplasia, and broad and deviated thumbs and great toes. Pfeiffer syndrome occurs in approximately 1:100,000 live births. Clinical manifestations and molecular genetic testing are important to confirm the diagnosis. Mutations of the fibroblast growth factor receptor 1 (F...

Chromosome 22q11.2 deletion syndrome (22q11.2DS) is a genetic neurodevelopmental syndrome that has been studied intensively in order to understand relationships between the genetic microdeletion, brain development, cognitive function, and the emergence of psychiatric symptoms. White matter microstructural abnormalities identified using diffusion tensor imaging methods have been reported to affe...