自引率: 6.8%
被引量: 25827
通过率: 暂无数据
审稿周期: 1.33
版面费用: 暂无数据
国人发稿量: 12
投稿须知/期刊简介:
The American Journal of Ophthalmology is a peer-reviewed, scientific publication directed to ophthalmologists and visual science specialists describing clinical investigations, clinical observations, and clinically relevant laboratory investigations related to ophthalmology.
期刊描述简介:
The American Journal of Ophthalmology is a peer-reviewed, scientific publication directed to ophthalmologists and visual science specialists describing clinical investigations, clinical observations, and clinically relevant laboratory investigations related to ophthalmology.
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Different mutations in carbohydrate sulfotransferase 6 (CHST6) gene cause macular corneal dystrophy types I and II in a single sibship.
The aim of this study was to examine the carbohydrate sulfotransferase 6 (CHST6) gene for mutations in a sibship with both macular corneal dystrophy (MCD) types I and II. Clinically relevant laboratory investigation. The coding region of the CHST6 gene was examined for mutations. In one sibling, MCD type I was due to a homozygous C1110T (Arg140end) mutation in CHST6. Two MCD type II individuals exhibited three heterozygous nucleotide changes: C1110T, G1360A (Gly223Asp), and G1685T (Gln331His). Analysis of the upstream region was performed on one individual with MCD type II, and no upstream deletion or substitution was found. These findings fit the haplotype analysis that we reported previously and indicate that the predicted protein that is encoded by CHST6 is more severely affected in the individual with MCD type I than in the siblings with MCD type II.
被引量：- 发表：2005
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Novel mutations in the carbohydrate sulfotransferase gene (CHST6) in American patients with macular corneal dystrophy.
To further characterize the mutations within the CHST6 gene responsible for causing macular corneal dystrophy in a cohort of affected patients from the United States. Experimental study. Genomic DNA was extracted from buccal epithelium of 16 affected patients (14 families), 17 unaffected relatives, and 127 controls, followed by polymerase chain reaction amplification and direct sequencing of the CHST6 coding region. Subtyping of affected patients into type I and II macular corneal dystrophy was performed by measuring antigenic keratan sulfate (AgKS) serum levels. Haplotype analysis was performed in families that demonstrated common mutations. CHST6 coding region analysis in 10 patients identified as having type I macular corneal dystrophy revealed 10 sequence changes: eight missense mutations, four of which are novel (Met104Val, Tyr110Cys, Gln122Pro, and Leu276Pro) and four of which have been reported previously (Ser51Leu, Pro72Ser, Cys102Gly, and Leu200Arg); one novel homozygous nonsense mutation in two patients from a single family (c. 1683C>T, Gln331X); and one frameshift mutation in a heterozygous state in a single patient (c.1744_1751dupGTGCGCTG). Mutation analysis in the four patients identified as having type II macular corneal dystrophy (serum samples were not obtained from two affected patients) revealed three patients heterozygous for either the c.923G>C, c.969C>A, or c.1519T>C sequence changes. The fourth patient was compound heterozygous for c.969C>A and c.1291T>G. None of these changes was observed in 127 control individuals. Haplotype analysis using microsatellite markers flanking the CHST6 gene did not reveal a common founder for the Leu200Arg (1291T>G) missense mutation, present in five families, identifying this position as a mutation hot-spot. A variety of previously unreported mutations in the coding region of the CHST6 gene are associated with type I macular corneal dystrophy in a cohort of patients from the United States.
被引量：18 发表：2004
