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Bestrophin 1 gene analysis and associated clinical findings in a Chinese patient with Best vitelliform macular dystrophy.


ABSTRACT: The aim of the present study was to investigate the clinical characteristics and the underlying genetic causes of Best vitelliform macular dystrophy (BVMD) in a sporadic case in a Chinese patient. A 10?year?old boy was diagnosed with BVMD; complete ophthalmic examinations were performed, including best?corrected visual acuity, intraocular pressure, slit?lamp examination, fundus photograph, optical coherence tomography and fundus fluorescein angiography imaging. Genomic DNA was extracted from leukocytes of the peripheral blood collected from this patient and his family members. DNA samples from 200 unrelated subjects from the Chinese population were used as controls. A total of 11 exons of the bestrophin 1 (BEST1) gene were amplified by polymerase chain reaction and directly sequenced. The results revealed that the patient presented with yellowish lesions in the macular area. Heterozygous mutations c.292G>A (p.Glu98Lys) in exon 4 and c.1608C>T (p.Thr536Thr) in exon 10 of the BEST1 gene were identified in this sporadic case; however, this was not identified in any of his unaffected family members or in the normal controls. The c.292G>A (p.Glu98Lys) mutation has not been previously reported, whereas the c.1608C>T (p.Thr536Thr) mutation is a previously characterized single nucleotide polymorphism (SNP). In conclusion, BEST1 gene mutations and polymorphisms have been reported in diverse ethnic groups, and the present study identified a novel BEST1 gene mutation and an SNP that occurred simultaneously in a Chinese patient with BVMD.

SUBMITTER: Lin Y 

PROVIDER: S-EPMC5647057 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature

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Bestrophin 1 gene analysis and associated clinical findings in a Chinese patient with Best vitelliform macular dystrophy.

Lin Ying Y   Li Tao T   Gao Hongbin H   Lian Yu Y   Chen Chuan C   Zhu Yi Y   Li Yonghao Y   Liu Bingqian B   Zhou Wenli W   Jiang Hongye H   Liu Xialin X   Zhao Xiujuan X   Liang Xiaoling X   Jin Chenjin C   Huang Xinhua X   Lu Lin L  

Molecular medicine reports 20170804 4


The aim of the present study was to investigate the clinical characteristics and the underlying genetic causes of Best vitelliform macular dystrophy (BVMD) in a sporadic case in a Chinese patient. A 10‑year‑old boy was diagnosed with BVMD; complete ophthalmic examinations were performed, including best‑corrected visual acuity, intraocular pressure, slit‑lamp examination, fundus photograph, optical coherence tomography and fundus fluorescein angiography imaging. Genomic DNA was extracted from leu  ...[more]

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