Title Analysis of gene mutation in Chinese patients with Reis-Bücklers corneal dystrophy
Authors Tian Xin
Liu Zu-guo
Li Qin
Li Bing
Wang Wei
Xie Pei-ying
Fujiki Keiko
Murakami Akira
Kanai Atsushi
Affiliation Department of Ophthalmology, Third Hospital, Peking University, Beijing 100083, China.
Issue Date 2005
Publisher zhonghua yan ke za zhi chinese journal of ophthalmology
Citation [Zhonghua yan ke za zhi] Chinese journal of ophthalmology.2005,41,(3),239-42.
Abstract To identify the mutation of the TGFBI gene in Chinese patients with Reis-Bücklers corneal dystrophy, and to study the relationship between the gene mutation and the clinical appearance.Ten patients and 2 unaffected family members from 2 unrelated families with corneal dystrophy were studied. Molecular genetic analysis was performed on DNA extracted from peripheral leucocytes, and exons 4 and 12 of the TGFBI gene were amplified by polymerase chain reaction for direct sequencing.Both pedigrees showed an autosomal dominant inheritance. The clinical appearance of the cornea consisted of fine granular, subepithelial opacities which spread and become confluent with time, and resembled geographic type of Reis-Bücklers corneal dystrophy. Direct sequencing of all affected members revealed a G-to-T transition at codon 124 (CGC to CTC), producing R124L mutation of TGFBI gene.R124L mutation of the TGFBI gene is found in two Chinese families with Reis-Bücklers corneal dystrophy. The phenotype of Reis-Bücklers corneal dystrophy in both families belongs to the geographic type. Molecular genetic approach may be useful for the proper diagnosis of this type of corneal dystrophy.
URI http://hdl.handle.net/20.500.11897/309869
ISSN 0412-4081
Indexed PubMed
Appears in Collections: 第三医院

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