条状多巴胺和前带环谷氨酸在第一发精神病变化与抗精神病治疗之间的关系
Sameer Jauhar1, Robert A McCutcheon2,3,4, Mattia Veronese5
1Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College, London, UK. Sameer.jauhar@kcl.ac.uk.
Translational psychiatry
|May 30, 2023
概括
抗精神病治疗在第一发精神病中没有改变多巴胺或谷氨酸水平. 然而,它显著改变了条纹性多巴胺合成和前带皮质谷氨酸之间的关系.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 放射学 放射学是一门学科.
背景情况:
- 多巴胺和谷氨酸与精神病有关.
- 多巴胺抗剂是精神病的主要治疗方法.
- 之前没有一项研究同时研究对多巴胺和谷氨酸的抗精神病作用.
研究的目的:
- 为了研究抗精神病治疗对多巴胺合成能力和前带环氨酸水平在第一发精神病的影响.
- 分析治疗前后这些神经递质指数之间的关系.
主要方法:
- 18F-DOPA正子发射断层扫描测量了条纹性多巴胺合成能力 (Kicer).
- 质子磁共振光谱测量了前带环胺酸.
- 在自然抗精神病治疗5周之前和之后,对18名患有第一发精神病的患者和20名健康对照进行了测量.
- 混合线性模型分析了测量之间的关系.
主要成果:
- 抗精神病治疗没有显著改变前带环谷氨酸度 (p=0.75) 或条状基度 (p=0.79).
- 在治疗后,在条纹基细胞和前 cingulate 谷氨酸之间的关系中观察到统计学上显著的变化 (p=0.017).
- 这种关系在患者和对照组之间在基线 (t=2.1,p=0.04) 显著不同,但在随访时没有 (t=0.06,p=0.96).
结论:
- 抗精神病治疗不会改变绝对多巴胺合成能力或前带皮质谷氨酸水平.
- 抗精神病治疗改变了前带环谷氨酸和条形状多巴胺合成能力之间的相互作用.
- 研究结果表明,抗精神病作用的潜在机制涉及精神病中神经递质关系的调节.
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