Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0018799 (heart disease)
 34,133 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Waardenburg syndrome type I is transmitted as an autosomal dominant trait. The main features are dystopia canthorum, partial pigmentary disorder and perceptive deafness. Osteo-articular and intestinal malformations may be observed. In an affected family, the unusual combination of Waardenburg syndrome and severe congenital heart disease has been observed in a child.
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PMID:[Waardenburg's syndrome and severe cyanotic cardiopathy]. 207 26

In these past 10 years, the usefulness of auditory brainstem response (ABR) has been demonstrated in the clinical evaluation of audiological or neurological disorders, and the absence of an ABR is commonly accepted as consistent with a peripheral hearing loss caused by middle or inner ear diseases. In this article, the authors report nine infants and children who had an absent or difficult to detect ABR at the first examination with subsequent normalization of ABR. Repeated otological examinations were always normal in these patients. The final diagnoses were delayed development, Waardenburg syndrome with congenital heart disease and epilepsy, healthy infant, infantile convulsion, mental retardation with history of low birth weight, in each case, and chromosomal aberration in four patients. The reason for normalization of ABR in our patients is not clear and is yet to be ascertained. However, the authors believe that neurological maturation rather than an improved primary peripheral disorder is responsible for the noted normalization of the ABR, because of the high incidence of neurological abnormalities in these patients.
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PMID:Normalization of poor auditory brainstem response in infants and children. 608 32

The Snail-related zinc-finger transcription factor, SLUG (SNAI2), is critical for the normal development of neural crest-derived cells and loss-of-function SLUG mutations have been proven to cause piebaldism and Waardenburg syndrome type 2 in a dose-dependent fashion. However, little is known about the consequences of SLUG overexpression in embryonic development. We report SLUG duplication in a child with a unique de novo 8q11.2-->q13.3 duplication associated with tetralogy of Fallot, submucous cleft palate, renal anomalies, hypotonia and developmental delay. To investigate the effects of Slug overexpression on development, we analyzed mice carrying a Slug transgene. These mice were morphologically normal at birth, inferring that Slug overexpression is not sufficient to cause overt morphogenetic defects. In the adult mice, there was a 20% incidence of sudden death, cardiomegaly and cardiac failure associated with incipient mesenchymal tumorigenesis. These findings, while not directly implicating Slug in congenital and acquired heart disease, raise the possibility that Slug overexpression may contribute to specific cardiac phenotypes and cancer development.
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PMID:SLUG (SNAI2) overexpression in embryonic development. 1671 46

Waardenburg syndrome is a rare autosomal dominant disease that may cause hearing loss, pigmentary abnormalities, neurocristopathy and partial albinism. Incidence is estimated as 2%-3% among the cases of congenital deafness and 1/42,000 of the general population. Children with Waardenburg syndrome usually require anaesthesia for the cochlear implant operation in early age. The features of the syndrome that may bear importance for anaesthetic management are laryngomalacia, multiple muscle contractures, limited neck movements, cyanotic cardiopathy and electrolyte imbalance. Patients with Waardenburg syndrome stand for difficult airway. We aimed to report anaesthetic management of a child with Waardenburg syndrome who underwent surgery for cochlear implantation.
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PMID:Anaesthesia Management in a Patient with Waardenburg Syndrome and Review of the Literature. 2736 29

Reports of terminal and interstitial deletions of the long arm of chromosome 2 are rare in the literature. Here, we present a case report concerning a Chinese boy with a 47,XYY karyotype and a de novo deletion comprising approximately 5 Mb between 2q35 and q36.1, along with syndactyly, type III Waardenburg syndrome, and congenital heart disease. High-resolution chromosome analysis to detect copy number variations was carried out using an Affymetrix microarray platform, and the genes affected by the patient's deletion, including IHH, were determined. However, no copy number changes were observed in his healthy parents. The present case exhibited novel syndactyly features, broadening the spectrum of clinical findings observed in individuals with 2q interstitial deletions. Our data, together with previous observations, suggest that IHH haploinsufficiency is the principal pathogenic factor in the syndactyly phenotype in this study, and that different types of variations at the IHH locus may cause divergent disease phenotypes. This is the first report of the involvement of IHH haploinsufficiency in syndactyly phenotype.
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PMID:A de novo 2q35-q36.1 deletion incorporating IHH in a Chinese boy (47,XYY) with syndactyly, type III Waardenburg syndrome, and congenital heart disease. 2796 32