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논문 기본 정보

자료유형
학술저널
저자정보
Shin, Ji-Hun (Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine) Ahn, So-Yoon (Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine) Shin, Jeong-Hee (Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine) Sung, Se-In (Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine) Jung, Ji-Mi (Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine) Kim, Jin-Kyu (Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine) Kim, Eun-Sun (Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine) Park, Hyung-Doo (Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine) Kim, Ji-Hye (Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine) Chang, Yun-Sil (Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine) Park, Won-Soon (Department of Pediatrics, Sam)
저널정보
대한소아청소년과학회 Clinical and Experimental Pediatrics Korean journal of pediatrics 제55권 제8호
발행연도
2012.1
수록면
301 - 305 (5page)

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Nonketotic hyperglycinemia (NKH) is a rare inborn error of amino acid metabolism. A defect in the glycine cleavage enzyme system results in highly elevated concentrations of glycine in the plasma, urine, cerebrospinal fluid, and brain, resulting in glycine-induced encephalopathy and neuropathy. The prevalence of NKH in Korea is very low, and no reports of surviving patients are available, given the scarcity and poor prognosis of this disease. In the current study, we present a patient with NKH diagnosed on the basis of clinical features, biochemical profiles, and genetic analysis. Magnetic resonance spectroscopy (MRS) allowed the measurement of absolute glycine concentrations in different parts of the brain that showed a significantly increased glycine peak, consolidating the diagnosis of NKH. In additional, serial MRS follow-up showed changes in the glycine/creatinine ratios in different parts of the brain. In conclusion, MRS is an effective, noninvasive diagnostic tool for NKH that can be used to distinguish this disease from other glycine metabolism disorders. It may also be useful for monitoring NKH treatment.

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