在先前未服用抗精神病药物的第一发精神病患者中进行皮质髓映射
Victoria L King1,2,3, Gerhard Hellemann4, Adrienne C Lahti2
1Department of Psychology, University of Alabama at Birmingham, Birmingham, AL, USA.
概括
在大脑中的灰质髓.
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.
- 神经成像是一种神经成像.
背景情况:
- 白质髓在精神分裂症谱系障碍 (SSD) 中的作用得到了充分研究.
- 在SSD中灰质髓的功能,特别是在皮质区域,仍然不太了解.
- 帕瓦胺阳性 (PV+) 内神经元及其功能障碍与SSD有关.
研究的目的:
- 为了研究前不服用抗精神病药物的第一发精神病患者的皮质髓变化.
- 探索灰质髓和PV+内部神经元病理在SSD之间的关联.
- 在早期精神病中识别特定的皮质区域与改变的髓含量.
主要方法:
- 在91名第一发精神病患者和107名健康对照中使用T1w/T2w比率量化皮质髓图.
- 采用多变量协变性分析 (MANCOVA) 来比较不同组的髓含量.
- 利用机器学习方法与逐步算法来识别驱动群体差异的关键皮质区域.
主要成果:
- 与健康对照组相比,患有第一发精神病的患者在关联皮层中表现出明显更高的T1w/T2w比率 (表明髓增加).
- 一组16个皮质区域被确定为足以区分患者和对照组.
- 团体成员身份与T1w/T2w比率值有很强的关联.
结论:
- 第一次情节精神病的特点是皮质髓在关联皮层的增加.
- 在关键发育时期的错误髓紧缩可能导致PV+内部神经元功能障碍和SSD中的电路中断.
- 向皮质髓素为减轻精神病中电路功能障碍提供了一个潜在的新疗法策略.
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