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)

The combination of complex congenital heart disease (double outlet right ventricle with pulmonary atresia, malalignment ventriculoseptal defect, right-sided aortic arch with left ductus arteriosus) and bladder exstrophy occurred in an infant with Opitz syndrome. Neither of these defects has previously been reported in association with Opitz syndrome. These malformations, which are midline defects, further characterize this syndrome as an impairment in midline development. The spectrum of congenital heart disease and genitourinary anomalies seen in Opitz syndrome is reviewed.
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PMID:Further delineation of the Opitz G/BBB syndrome: report of an infant with complex congenital heart disease and bladder exstrophy, and review of the literature. 967 70

Toriello-Carey syndrome comprises agenesis of the corpus callosum, telecanthus, small palpebral fissures, Pierre Robin sequence, abnormal ears, nuchal laxity and cardiac defects. We report on a female patient who has some additional findings including an anteriorly placed anus. This anomaly adds to the list of other midline anomalies seen in this syndrome. We compare the findings to those seen in the Opitz BBBG syndrome, a well-defined syndrome of the midline developmental field. Our patient, having a severe manifestation of complicated congenital heart disease, died in the neonatal period, which argues against the likelihood that this is an X-linked disorder with more severe manifestations in males.
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PMID:Toriello-Carey syndrome: case report with additional findings. 1116 67

The X-linked form of Opitz syndrome (OS) affects midline structures and produces a characteristic, but heterogeneous, phenotype that may include severe mental retardation, hypertelorism, broad nasal bridge, widow's peak, cleft lip/cleft palate, congenital heart disease, laryngotracheal defects, and hypospadias. The MID1 gene was implicated in OS by linkage to Xp22. It encodes a 667 amino acid protein that contains a RING finger motif, two B-box zinc fingers, a coiled-coil, a fibronectin type III (FNIII) domain, and a B30.2 domain. Several mutations in MID1 are associated with severe OS. Here, we describe an intelligent male with a milder phenotype characterized by hypertelorism, broad nasal bridge, widow's peak, mild hypospadias, pectus excavatum, and a surgically corrected tracheo-esophageal fistula. He has an above average intelligence and no cleft lip/palate or heart disease. We identified a novel mutation in MID1 (P441L) which is in exon 8 and functionally associated with the FNIII domain. While OS phenotypes have been attributed to mutations in the C-terminal part of MID1, little is currently known about the structure-function relationships of MID1 mutations, and how they affect phenotype. We find from a literature review that missense mutations within the FNIII domain of MID1 are associated with a milder presentation of OS than missense mutations elsewhere in MID1. All truncating mutations (frameshift, insertions/deletions) lead to severe OS. We used homology analysis of the MID1 FNIII domain to investigate structure-function changes caused by our missense mutation. This and other missense mutations probably cause disruption of protein-protein interactions, either within MID1 or between MID1 and other proteins. We correlate these protein structure-function findings to the absence of CNS or palatal changes and conclude that the FNIII domain of the MID1 protein may be involved in midline differentiation after neural tube and palatal structures are completed.
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PMID:A structure-function study of MID1 mutations associated with a mild Opitz phenotype. 1637 42