关键词: Vohwinkel syndrome ainhum connexin 26 mutilating palmoplantar keratoderma sensorineural deafness

Mesh : Abnormalities, Multiple / genetics Adult Asians Connexin 26 Connexins / genetics Female Hand Deformities, Congenital / genetics Hearing Loss, Sensorineural / genetics Humans Keratoderma, Palmoplantar / genetics Mutation, Missense

来  源:   DOI:10.1111/1346-8138.14727   PDF(Sci-hub)

Abstract:
Vohwinkel syndrome (VS) is a rare autosomal dominant condition, also known as mutilating palmoplantar keratoderma accompanied by sensorineural deafness. The LOR and GJB2 genes are reported to be responsible for VS. The GJB2 gene encodes connexin 26, a component of intercellular gap junctions expressed in various tissues. We report the case of a 31-year-old Chinese woman with classic VS characterized by sensorineural deafness and mutilating palmoplantar keratoderma. Further genetic studies demonstrated a nucleotide change (c.175G>A) in the GJB2 gene, leading to an amino acid alteration (G59S). This identical missense mutation (G59S) has also been reported in a patient with Bart-Pumphrey syndrome. Together with our findings and previous studies, we conclude that the identical mutation (G59S) in the GJB2 gene contributes to various manifestations.
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