Title |
Connexin 26 (GJB2) mutation in an Argentinean patient with keratitis-ichthyosis-deafness (KID) syndrome: a case report
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Published in |
BMC Medical Genomics, May 2016
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DOI | 10.1186/s12881-016-0298-y |
Pubmed ID | |
Authors |
Viviana Karina Dalamón, Paula Buonfiglio, Margarita Larralde, Patricio Craig, Vanesa Lotersztein, Keith Choate, Norma Pallares, Vicente Diamante, Ana Belén Elgoyhen |
Abstract |
Keratitis-Ichthyosis-Deafness (KID) syndrome is a rare condition characterized by pre-lingual sensorineural deafness with skin hyperkeratinization. The primary cause of the disease is a loss-of-function mutation in the GJB2 gene. Mutations in Argentinean patients have not been described. We studied a 2 year-old boy with bilateral congenital sensorineural deafness with dry skin over the entire body, hypotrichosis of the scalp, thin and light-blond hair. Analysis of the GJB2 gene nucleotide sequence revealed the substitution of guanine-148 by adenine predicted to result in an Asp50Asn amino acid substitution. This is the first KID report in a patient from Argentina. This de novo mutation proved to be the cause of keratitis-ichthyosis-deafness syndrome (KID-syndrome) in the patient, and has implications in medical genetic practice. |
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