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KMID : 0191120100250060957
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Journal of Korean Medical Science
2010 Volume.25 No. 6 p.957 ~ p.960
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Glutaric Aciduria Type 1 in Korea: Report of Two Novel Mutations
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Park June-Dong
Lim Byung-Chan
Kim Ki-Joong
Hwang Yong-Seung
Kim Seung-Ki
Kang Seong-Ho
Cho Sung-Im
Park Sung-Sup
Lee Joon-Soo
Chae Jong-Hee
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Abstract
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Glutaric aciduria type I (GA I) is an autosomal recessive disorder caused by a deficiency of glutaryl-CoA dehydrogenase. Although over 400 patients confirmed as GA I have been reported, reports from the Asian population had contributed to the minor proportion. We recently diagnosed two cases of GA I confirmed with mutational analysis. Here, we present their rather atypical clinical presentations with genetic characteristics for the first time in Korea. Profound developmental delay from birth, association of hearing loss, and neurological improvement after surgical intervention, were considered to be different clinical features from most reported cases. One patient was a compound heterozygote for p.Ser139Leu and p.Asp220Tyr, and the other for p.Ser139Leu and Glu160X. The mutations of the two alleles (p.Asp220Tyr and p.Glu160X) were novel and reports of p.Ser139Leu were rare both in Western and other Asian populations. These might suggest different genetic spectrum of Korean GA I patients.
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KEYWORD
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Glutaric Aciduria Type I, Glutaryl-CoA Dehydrogenase, Mutation, Korea
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