지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 118 - 126 (9page)
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초록· 키워드
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Background and objectives: A deficiency of BH4 (tetrahydrobiopterin) not only causes the classical phenylketonuric phenotype, but also is the source of neurological signs and symptoms due to impaired syntheses of L-Dopa and serotonin. The treatment of BH4 deficiency usually consists of replacement with BH4 and the neurotransmitters. We performed this study to finding out long-term follow-up clinical symptoms and prognosis of BH4 deficiency. Methods: Clinical and biochemical, genetic analysis were done retrospectively from January 1999 to July 2015 in Soonchunhyang University Hospital. Results: In our study, total 207 patients were confirmed to hyperphenylalaninemia. Among them, 10 patients were BH4 deficiency. 9 patients were 6-pyruvoyl-tetrahydropterin (PTPS) deficiency and one patient was dihydropteridine reductase (DHPR) deficiency. The patients who received delayed treatment, most of our patients suffered from severe psychomotor retardation, hypotonia and seizure. c.259C>T mutation was identified most commonly in PTPS gene analysis. A patient with DHPR deficiency had a mental retardation, dystonia, seizure. His seizure semiology was dialeptic feature. His EEG showed generalized spike wave patterns. All patients had treated with tolerate L-Dopa, BH4 and 5-hydroxytryptophan. Most of the early treated patients have a good tolerance for drugs well. But some patients had neurologic symptoms, despite early detection and treatment. Conclusion: BH4 deficiency patients who had delayed treatment tend to have severe psychomotor problem and neurologic deficits.
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