A normal electro-oculography in a family affected by best disease with a novel spontaneous mutation of the BEST1 gene

被引:25
作者
Testa, F. [1 ]
Rossi, S. [1 ]
Passerini, I. [2 ]
Sodi, A. [3 ]
Di Iorio, V. [1 ]
Interlandi, E. [1 ]
Della Corte, M. [1 ]
Menchini, U. [3 ]
Rinaldi, E. [1 ]
Torricelli, F.
Simonelli, F. [1 ]
机构
[1] Univ Naples 2, Dept Ophthalmol, Naples, Italy
[2] Azienda Osped Careggi, Cytogenet & Genet Unit, Florence, Italy
[3] Univ Florence, Dept Ophthalmol, Florence, Italy
关键词
D O I
10.1136/bjo.2008.143776
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
Aims: To describe clinical and genetic findings in an Italian family affected by Best disease. Methods: Five related patients underwent a complete ophthalmological assessment; genetic testing was performed by single-strand conformation polymorphism analysis and direct sequencing of the BEST1 gene. Results: In three of five family members, the sequence analysis of the BEST1 gene revealed a single Phe-to-Leu transition at nucleotide 305 associated with clinical evidence of Best disease. Surprisingly, the electro-oculogram was normal in all affected patients. Conclusion: This study reveals a de novo mutation in the BEST1 gene never described before, sustaining the autosomal-dominant pattern of inheritance of the disease. Clinical evaluation showed phenotypic variability between affected members. In addition, these data suggest that a normal electro-oculography (EOG) does not rule out a diagnosis of Best disease, supporting instead the crucial role of molecular analysis.
引用
收藏
页码:1467 / 1470
页数:4
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