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Mutations of the Norrie gene in Korean ROP infants
Jeong Hun Kim1, Young Suk Yu, Jiyeon Kim
1Department of Ophthalmology, Seoul National University College of Medicine & Seoul Artificial Eye Center, Clinical Research Institute, Seoul National University Hospital, Seoul, Korea.
Abstract:
The present study was conducted to evaluate if there is a Norrie disease gene (ND gene) mutation involved in the retinopathy of prematurity (ROP), and to identify the possibility of a genetic abnormality that may be linked to the presence of ROP. Nineteen premature Korean infants, with a low birth weight (1500 g or less) or low gestational age (32 weeks or less), were included in the study. Eighteen infants had ROP, and the other did not. Genomic DNA was isolated from the peripheral blood leukocytes of these patients, and all three exons and their flanking areas, all known ND gene mutations regions, were evaluated following amplification by a polymerase chain reaction, but no ND gene mutations were detected. Any disagreement between the relationship of ROP to the ND gene mutation will need to be clarified by further investigation.