在患有雷特综合征的个体中,手功能的按年龄分布
Jeffrey L Neul1, Tim A Benke2, Eric D Marsh3
1Vanderbilt University Medical School, Nashville, TN.
概括
在雷特综合征 (RTT) 中,手部功能随着年龄的增长而下降. 较温和的MECP2变体表现出更快的手术技能恶化,影响了RTT疗法的临床试验设计.
科学领域:
- 神经发育障碍 神经发育障碍
- 神经发育障碍的遗传学
- 临床神经学 临床神经学
背景情况:
- 雷特综合征 (RTT) 是一种X关联的主导神经发育障碍.
- 手部功能障碍是RTT的一个核心特征.
- MECP2变体与RTT进展之间的关系尚未完全理解.
研究的目的:
- 确定古典雷特综合征患者手部功能技能的纵向分布.
- 为了将手功能的变化与特定的MECP2变体相关联.
主要方法:
- 对946名RTT的女孩和年轻女性进行了长度研究.
- 在美国自然历史研究 (NHS) 中在2006年至2021年期间收集的数据.
- 从2岁到18岁对手部功能技能进行结构化临床评估,按MECP2变异组分层.
主要成果:
- 在最初回归后,RTT患者的手部功能在整个年龄范围内纵向下降.
- 与具有更严重变异的人相比,在较轻微的MECP2变异 (A组:R133C,R294X,R306C,C端截断) 的人群中观察到手部功能的急剧下降.
- 在MECP2变体组中,手部功能下降的速度有显著差异.
结论:
- 在RTT中手动使用的时间变化需要在临床试验设计中进行特定考虑.
- MECP2变异对临床严重性的明显影响,特别是手动使用,应该为干预试验策略提供信息.
- 了解这些模式可以帮助开发针对RTT功能限制的向疗法.
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