Lesch-Nyhan 증후군은 성염색체 열성 유전질환으로, 퓨린 (purine) 대사 과정중 구제 및 재순환에 관여하는 효소인 hypoxanthine-guanine phosphoribosyl transferase(HPRT)의 완 전 결핍으로 인한 고요산혈증, 무도성 무정위운동(choreoathetosis), 연축성(spasticity), 정신지체, 강박적인 자해 행위 등의 임 상 증상들을 특징으로 하는 대사 이상 질환이다 1) . 1964년 Lesch와 Nyhan 1) 에 의해 특징적인 상기 증상을 보인 형제의 증례가 처음 보고되었고, 1967년 Seegmiller 등 2) 에 의하 여 이 병의 원인이 효소 HPRT의 완전 결핍으로 인한 것임이 밝혀졌다. 이후 분자유전학 기술의 발달로 HPRT 유전자가...

The characteristic self-mutilation behaviors of patients with Lescl~Nyhan syndrome are detailed. The behavorial manifestations and dental management of five cases are discussed with emphasis on the lack of viable treatment choices other than extraction. Some suggestions for categorizing the mutilative behaviors have been presented together with possible treatment choices of each group. Lesch-Ny...

BACKGROUND The Lesch-Nyhan syndrome (LNS) is a rare x-linked excessive disorder of purine metabolism, caused by the congenital absence of hypoxanthine guanine phosphoribosyl transferase (HGPRT). CASE REPORT In January 2000 a 2 year old boy was referred to a paediatric dental office in Landshut, Germany, because of severe and repeated lip chewing and aggressive tongue biting. A medical history...

UNLABELLED Parents of 40 patients with Lesch-Nyhan disease completed a questionnaire detailing developmental history, life course, management, medication, factors influencing variability and topography of self-injury. Several conclusions were reached. Characteristics: Biting was the predominant form, perhaps only because of the difficulty of preventing it. There was considerable variability in ...

Subcloning of Simian virus 40 (SV40) T antigen-positive mouse-human hybrids, derived from the fusion of mouse cells deficient in thymidine kinase with SV40-transformed Lesch Nyhan fibroblasts, resulted in their segregation into T antigen-positive and negative subclones. Positive correlation between the presence of human chromosome 7 and the expression of SV40 T antigen was established in the su...

April 2004 Volume 4, Issue 2 Dennis L. Murphy, Alicja Lerner, Gary Rudnick, and Klaus-Peter Lesch Laboratory of Clinical Science, Building 10, Room 3D41, 10 Center Drive, MSC 1264, NIMH, NIH, Bethesda, MD 20892; Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06510; Molecular and Clinical Psychobiology, Department of Psychiatry and Psychotherapy, University of Würz...