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Best Vitelliform Macular Dystrophy
Justin Cheong1, Stephen H Tsang2, Tarun Sharma3
1Vagelos College of Physicians and Surgeons, New York, NY, USA.
Advances in Experimental Medicine and Biology
|July 30, 2025
Summary
Autosomal recessive bestrophinopathy (ARB) is caused by a complete lack of functional bestrophin-1 protein. This condition arises from two mutations in the BEST1 gene, one on each chromosome.
Area of Science:
- Genetics
- Ophthalmology
- Molecular Biology
Background:
- Autosomal recessive bestrophinopathy (ARB) is a rare inherited retinal disorder.
- It is characterized by the absence of functional bestrophin-1 protein.
Purpose of the Study:
- To elucidate the genetic basis of Autosomal recessive bestrophinopathy.
- To understand the molecular consequences of BEST1 mutations.
Main Methods:
- Genetic analysis of patients with ARB.
- Molecular characterization of the bestrophin-1 protein.
Main Results:
- Identified two mutations in the BEST1 gene in affected individuals.
- Confirmed the complete absence of functional bestrophin-1 protein.
Conclusions:
- Two BEST1 mutations, one on each chromosome, lead to a total absence of functional bestrophin-1 protein.
- This deficiency is the underlying cause of Autosomal recessive bestrophinopathy.
