SMC1A综合征:来自大型国际队列的临床数据
Elisabetta Gibellato1,2, Paola Cianci1, Milena Mariani1
1Pediatric Department, "Mariani" Center for Fragile Child, ASST Lariana, Sant'Anna Hospital, Como, Italy.
American journal of medical genetics. Part A
|February 29, 2024
概括
SMC1A综合征是女性的神经系统疾病,导致严重的发作和发育迟缓. 这项研究突出了其自然历史,强调了耐药性和发育性和性脑病变的进展.
科学领域:
- 遗传学和神经学 遗传学和神经学
- 发展障碍 发展障碍 发展障碍
背景情况:
- SMC1A综合征 (DEE85) 是一种由SMC1A基因突变引起的X相关疾病,影响女性并与康奈莉亚·德朗格综合征谱系相关.
- 它的特点是早期发作的严重耐火性,全球发育迟缓,智力障碍和明显的面部形,它提出了独特的临床挑战.
研究的目的:
- 为了增强对SMC1A综合征自然史的理解.
- 在一个大型的国际队列中,仔细记录精神运动发育和的特征.
主要方法:
- 对被诊断患有SMC1A综合征的最大国际队列进行描述性观察研究.
- 分析的重点是临床表型,发育轨迹和形状.
主要成果:
- 在正常的产前生长后观察到产后小头症;新生儿发作和呼吸系统问题的显著发病率 (51.4%).
- 中枢神经系统 (20%) 和心血管形 (20%) 的高患病率; 运动技能普遍延迟.
- 确诊了耐药性,但对饮食的有效性不确定. 显著的技能回归在发作后出现. 面部形状变异是可变的,不是典型的CdLS.
结论:
- SMC1A变种与耐药性强相关,导致超过三分之二的患者患有发育性和性脑病变.
- 在SMC1A中缺少突变热点和缺乏表型特异性,强调了全外因子测序的诊断重要性.
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