GRIN2A无变体具有早期精神分裂症和其他精神障碍的高风险,并可能使精确治疗成为可能
Johannes R Lemke1,2, Andrea Eoli3,4, Ilona Krey5,6
1Institute of Human Genetics, University of Leipzig Medical Center, Leipzig, Germany. johannes.lemke@medizin.uni-leipzig.de.
Molecular psychiatry
|October 14, 2025
概括
罕见的GRIN2A基因变异与精神分裂症等早期发病的精神障碍有关. 在受影响个体中,L-氨酸治疗有望改善神经精神病症状.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 精神病学是一个精神病学.
背景情况:
- 罕见的遗传因素对精神疾病有很大影响.
- 编码N-甲基-D-酸盐受体 (NMDAR) GluN2A亚单元的GRIN2A中的致病变体增加了精神分裂症的风险.
- 目前还没有精确治疗精神障碍的方法.
研究的目的:
- 为了确定患有GRIN2A相关疾病的个体中精神疾病的患病率.
- 调查GRIN2A相关的心理健康状况的临床表现和潜在的治疗目标.
主要方法:
- 从全球注册表中分析了235名患有病原性GRIN2A变异的个体的精神症状.
- 将GRIN2A变异携带者与人口队列 (FinRegistry) 的比较.
- 在四个患有GRIN2A-null相关精神障碍的人群中对L-氨酸治疗的评估.
主要成果:
- 在GRIN2A (GRIN2Anull) 中的零变体与包括精神分裂症在内的广泛精神障碍显著相关,比错误变体更为如此.
- 与GRIN2Anull相关的精神障碍在儿童或青少年时期较早地表现出来,相比于成年人的平均发病率.
- 精神障碍可以呈现为孤立的条件 (例如,精神分裂症,情绪障碍),而不是智力障碍或.
- 在四名接受治疗的个体中,L-氨酸治疗导致神经精神病学表型的改善.
结论:
- GRIN2Anull代表了早期发病和孤立精神障碍的第一个已识别的单一原因.
- 为早期诊断和个性化治疗,建议对GRIN2A变异进行基因检测.
- 提高NMDAR共激素水平,例如L-氨酸,是与GRIN2A变体相关的精神障碍的有前途的精确治疗策略.
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