基因SLC6A3可变数组重复 (VNTR) 和注意力缺陷/多动障碍之间的关系
Abbas Seymari1, Ashkan Naseh1, Sajjad Rezaei1
1Department of Psychology, Faculty of Humanities, Guilan University, Rasht, Iran.
Iranian journal of psychiatry
|February 29, 2024
概括
在SLC6A3基因的5R等位基因和5R/5R基因型.
科学领域:
- 遗传学和分子生物学
- 神经科学是一个神经科学.
- 儿童和青少年精神病学
背景情况:
- 注意缺陷/多动障碍 (ADHD) 是儿童和青少年中普遍存在的一种神经发育障碍.
- 编码多巴胺载体的SLC6A3基因在多巴胺神经传递中起着至关重要的作用,与ADHD有关.
- 在基因内子中的变量数并列重复 (VNTR) 多态,如SLC6A3的内子8,正在研究它们与复杂疾病的潜在关联.
研究的目的:
- 调查伊朗儿童和青少年队列中SLC6A3基因内突8和ADHD的VNTR等位基因之间的关联.
- 确定SLC6A3内8 VNTR的特定基因型或等位基因是否是发展ADHD的风险因素.
主要方法:
- 一项涉及95名被诊断患有多动症和多动症的儿童和青少年以及95名健康对照 (6-10岁) 的病例对照研究.
- 使用聚合酶链反应 (PCR) 和聚烯胺凝电泳的基因分析,从毛囊样本中识别VNTR基因型.
- 通过儿童症状目录-4 (CSI-4) 检查清单和结构化访谈进行临床评估.
主要成果:
- 与对照组相比,在ADHD组中发现了SLC6A3内8 VNTR的5R基因型和5R等位基因,频率显著更高 (P=0.026和P=0.002,分别).
- 5R/5R基因型与患ADHD的几率增加了2.75倍 (OR=2.75,P=0.01).
- 5R等位基因显示,患ADHD的几率增加了2.02倍 (OR=2.02,P=0.002).
结论:
- 这项研究表明,在伊朗儿童和青少年中,SLC6A3内8 VNTR和ADHD的5R等位基因和5R/5R基因型之间存在显著的关联.
- 这些发现表明,SLC6A3基因中的特定多态可能有助于ADHD的遗传易感性.
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