与KAT6A综合征相关的神经心理特征:新兴的基因型-表型趋势
Rowena Ng1,2, Allison J Kalinousky3, Jacqueline Harris4,3,5,6
1Department of Neuropsychology, Kennedy Krieger Institute, 1750 E. Fairmount Ave, Baltimore, USA. ngr@kennedykrieger.org.
Orphanet journal of rare diseases
|May 13, 2024
概括
KAT6A综合征涉及智力障碍和语言障碍. 这项研究揭示了同样受损的非语言认知和接受性语言,受影响个体的社会驱动和行为调节完好无损.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学是一种遗传学.
- 发展心理学 发展心理学
背景情况:
- 凯特6A综合征是一种罕见的孟德尔性疾病,影响表观遗传机制.
- lysine acetyltransferase 6 A (KAT6A) 基因中的致病变体导致这种情况.
- 智力障碍和语音/语言障碍很常见,晚期截断变体与更严重的智力障碍有关.
研究的目的:
- 研究KAT6A综合征的认知和行为表型.
- 检查KAT6A综合征患者的非语言技能,社会功能和适应性行为.
- 探索与变种类型相关的潜在的基因型-表型相关性.
主要方法:
- 评估了15名分子确认的KAT6A综合征患者 (平均年龄10.32岁).
- 使用DAS-II,NEPSY-II和Beery VMI第6版的子测试进行认知和视觉运动评估.
- 雇佣的护理人员完成了行为评级库存,以评估适应性行为和行为问题.
主要成果:
- 结果表明全球认知障碍,非语言认知得分与接受性语言相当.
- 与自闭症相关的特征 (兴趣受限,重复行为) 和适应性缺陷是普遍存在的.
- 蛋白质截断变体与错误意义变体的非语言和受感语言测量结果较低的趋势被注意到.
结论:
- KAT6A综合征的认知表型包括非语言认知和受感语言受损,以及相对完整的社会驱动和行为调节.
- 新兴的基因型-表型相关性表明,蛋白质截断突变可能比误解突变更显著地影响认知.
- 在早期和晚期的截断变体之间,神经心理学概况是相似的.
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