在自闭症谱系障碍中的SNAP-25多态:对可能的内分类型进行试点研究
Martina Maria Mensi1, Franca Rosa Guerini2, Michele Marchesi3
1Child Neuropsychiatry Unit, IRCCS Mondino Foundation, 27100 Pavia, Italy.
Pediatric reports
|December 22, 2023
概括
在SNAP-25中的遗传变异可能会影响自闭症严重程度和注意力缺陷. 特定的SNAP-25多态性与自闭症谱系障碍儿童的较低智商和更明显的自闭症特征有关.
科学领域:
- 神经遗传学 神经遗传学
- 发育神经科学的发展神经科学.
- 精神病学遗传学 精神病学遗传学
背景情况:
- 自闭症谱系障碍 (ASD) 呈现出各种临床表现,使诊断和干预复杂化.
- 注意力障碍是ASD的一个常见的并发症.
- 突触体相关蛋白25 (SNAP25) 对于神经传递至关重要,并且已与精神疾病和ASD中的过度活动有关.
研究的目的:
- 研究ASD儿童SNAP-25基因多态和临床/行为特征之间的关联.
- 为了探索与SNAP-25变异相关的潜在内分类型,在严重的ASD病例中与注意力困难相关.
主要方法:
- 从41名被诊断为ASD的儿童中收集了临床,行为和神经心理学数据.
- 参与者对SNAP-25基因的五种单核酸多态 (SNP) 进行了基因定型.
- 儿童根据他们的自闭症诊断观察时间表,第二版 (ADOS-2) 严重性得分分层分.
主要成果:
- 在高严重ASD组中,SNAP-25 rs363050 (A/G) 多态和临床数据之间发现了显著的关联.
- 具有 rs363050 的 GG 基因型的儿童的总智商得分较低.
- GG基因型也与更严重的自闭症功能和更大的注意力困难有关.
结论:
- SNAP-25 rs363050多态可能是一个与严重自闭症功能和注意力缺陷相关的遗传标记.
- 这一发现可能有助于识别自闭症谱中特定的内分类型.
- 对SNAP-25遗传学的进一步研究可能有助于为ASD制定个性化治疗策略.
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