Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2008-2-13
pubmed:abstractText
Branchio-oto-renal (BOR) and Stickler (STL) syndromes are disorders that include hearing loss among their clinical features. STL syndrome type I (STL1) is a combination of ophthalmic, orofacial, articular, and auditory manifestations, caused by mutations in the COL2A1. BOR syndrome is an autosomal dominant trait encompassing branchial, otic and renal anomalies because of mutations in EYA1, SIX1 and SIX5. In this study, we have clinically and genetically diagnosed a proband that displayed STL1 and BOR syndromes. This patient and his younger brother exhibited hearing loss and cleft palate. Both siblings and their mother also showed myopia, congenital non-progressive vitreous anomaly and a flat face. Taken together, these clinical features are consistent with the diagnosis of a familial case of STL. Sequence analysis revealed in the three patients a novel COL2A1 mutation (c.1468_1475delinsT) that accounted for a STL1 phenotype. The proband also displayed pre-auricular pits, branchial fistulae and renal agenesis that define BOR syndrome. Interestingly, this patient carries an EYA1 mutation, p.R328X, which was not present in the two other patients or in his healthy father, supporting that the mutation arose de novo. In conclusion, this report highlights the importance of molecular testing and detailed clinical evaluation for the diagnosis of syndromes with overlapping phenotypic features.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1399-0004
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
73
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
262-7
pubmed:meshHeading
pubmed-meshheading:18177466-Abnormalities, Multiple, pubmed-meshheading:18177466-Adult, pubmed-meshheading:18177466-Base Sequence, pubmed-meshheading:18177466-Branchio-Oto-Renal Syndrome, pubmed-meshheading:18177466-Collagen Type II, pubmed-meshheading:18177466-DNA Mutational Analysis, pubmed-meshheading:18177466-Female, pubmed-meshheading:18177466-Humans, pubmed-meshheading:18177466-Intracellular Signaling Peptides and Proteins, pubmed-meshheading:18177466-Male, pubmed-meshheading:18177466-Middle Aged, pubmed-meshheading:18177466-Molecular Sequence Data, pubmed-meshheading:18177466-Mutation, pubmed-meshheading:18177466-Nuclear Proteins, pubmed-meshheading:18177466-Pedigree, pubmed-meshheading:18177466-Phenotype, pubmed-meshheading:18177466-Protein Tyrosine Phosphatases, pubmed-meshheading:18177466-Syndrome, pubmed-meshheading:18177466-Tomography, X-Ray Computed
pubmed:year
2008
pubmed:articleTitle
Stickler and branchio-oto-renal syndromes in a patient with mutations in EYA1 and COL2A1 genes.
pubmed:affiliation
Unidad de Genética Molecular, Hospital Ramón y Cajal, 28034 Madrid, Spain.
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't