脑结构和认知功能的早期纵向变化,这些变化发生在最近被诊断为双相情感障碍的患者中
Julian Macoveanu1, Viktoria Damgaard2, Alexander Tobias Ysbæk-Nielsen2
1Copenhagen Affective Disorder Research Centre (CADIC), Psychiatric Centre Copenhagen, Copenhagen University Hospital, Rigshospitalet, Denmark.
Journal of affective disorders
|July 13, 2023
概括
认知障碍和桃体扩大是双相情感障碍 (BD) 的稳定早期标志物. 白质量下降可能表明疾病进展,影响临床结果.
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:
- 双极性障碍 (BD) 通常与认知障碍和结构性大脑异常有关.
- 这些因素与BD患者的临床结果较差有关.
- 早期发现大脑变化对于了解疾病进展至关重要.
研究的目的:
- 在最近被诊断为双相情感障碍患者中绘制大脑结构和认知的早期纵向变化.
- 识别疾病进展的早期标志物及其与临床结果的关联.
- 为了比较BD患者和健康对照者的大脑结构和认知轨迹.
主要方法:
- 结构性MRI和神经心理测试在基线和随访 (平均16个月) 时进行.
- 参与者包括最近诊断的,缓解的BD患者 (n=97基线,n=50随访) 和健康的对照 (HC) (n=66基线,n=38随访).
- 线性混合模型分析了灰质,白质,杏仁体,海马体积,大脑年龄和认知功能的变化.
主要成果:
- 与双极性障碍患者相比,双极性障碍患者的总白质体积随着时间的推移而下降,与HC患者相比.
- 患者在基线和随访时都有更大的杏仁体积.
- 在BD患者的认知表现较低,随着时间的推移没有显著变化;在皮质灰质或海马体积上没有观察到差异.
结论:
- 认知障碍和桃体扩大似乎是双相情感障碍的稳定早期标志物.
- 渐进的白质下降可能与BD的疾病进展有关.
- 这些发现突出了监测BD进展和结果的潜在早期指标.
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