DHDDS和NUS1:一个融合的途径和共同的表型
Laura J Williams1, Sophie Waller1, Jessica Qiu1
1Movement Disorder Unit, Department of Neurology, Westmead Hospital, Westmead, New South Wales, Australia.
Movement disorders clinical practice
|January 31, 2024
概括
脱水多利二酸合成酶 (DHDDS) 和核无二酸合成酶1 (NUS1) 的变体导致共同的神经发育和运动障碍. 早期识别这种表型有助于通过遗传检测进行诊断.
科学领域:
- 神经遗传学 神经遗传学
- 分子神经科学 分子神经科学
- 发育神经科学的发展神经科学.
背景情况:
- 脱水多二酸盐合成酶 (DHDDS) 和核无二酸盐合成酶1 (NUS1) 的异构变体与神经发育障碍有关.
- 这些基因对多利霍尔合成至关重要,影响N-糖化.
- 一个重叠的表型,特别是复杂的运动障碍,由于它们的共享路径,已被建议.
研究的目的:
- 描述与DHDDS和NUS1.1变异相关的临床表型.
- 巩固从案例研究和文献综述中得出的发现,以定义一个融合的表型.
- 突出诊断线索,并建议改进诊断策略.
主要方法:
- 三名患有DHDDS变异的患者和五名患有NUS1变异的患者的临床描述.
- 对98份关于DHDDS,NUS1和6q22.1结构变化的异构变异报告的审查.
- 神经生理学确认肌细胞,包括面部电肌图.
主要成果:
- 一个类似的表型由多焦点肌肉,加剧的行动,与面部参与主导.
- 观察到步态无力症,不成比例地损害了双重步态,出生时的低血压和发育迟缓.
- 趋同的表型包括 dystonia,帕金森症,周期性恶化,刻板印象,焦虑和异形;转移林异形形状和成像通常是正常的.
结论:
- 识别共享的表型可以加快诊断DHDDS/NUS1相关疾病.
- 染色体微阵列和纳入运动障碍基因组是推的诊断方法.
- 这项研究完善了对与多利霍尔合成缺陷相关的表型谱的理解.
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