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白质微结构完整性与双相情感障碍青少年的视网膜血管口径有关
Megan Mio1, Kody G Kennedy1, Anahit Grigorian1
1Centre for Youth Bipolar Disorder, Centre for Addiction and Mental Health, Toronto, Canada.
Journal of psychosomatic research
|October 19, 2023
概括
患有双相情感障碍 (BD) 的青少年表现出视网膜血管大小的改变,这与白质完整性降低有关,特别是在体中. 这表明在青少年患有BD时,血管与大脑之间存在联系.
科学领域:
- 神经科学是一个神经科学.
- 血管生物学 血管生物学
- 精神病学是一个精神病学.
背景情况:
- 减少白质完整性是成年人双相情感障碍 (BD) 的已知特征,通常与心血管风险有关.
- 在患有BD的青少年中,血管健康和大脑结构之间的联系尚不清楚.
- 新的微血管测量可能会为这个人群的血管-大脑轴提供洞察力.
研究的目的:
- 为了研究视网膜血管口径和白质完整性之间的关系,在青少年和没有BD.
- 探索患有BD的青少年与健康对照之间的视网膜微血管结构的潜在差异.
主要方法:
- 一项涉及84名青少年 (42名患有BD,42名对照) 的横截面研究.
- 视网膜成像用于测量动脉和静脉口径.
- 扩散张力成像 (DTI) 评估了特定大脑区域的白质分数异构性 (FA),并通过voxel-wise分析.
主要成果:
- 与对照人群相比,患有BD的青少年表现出更广泛的动脉动脉口径.
- 增加的静脉口径与整个样本中体中较低的分数异构 (FA) 相关.
- 较高的动脉口径与大脑体和小子中减少的FA相关.
- 诊断和静脉口径之间的显著相互作用表明,在BD患者的特定白质通道中,与FA的积极关联更强.
结论:
- 视网膜微血管测量与患有BD的青少年的白质完整性有关,特别是在体内.
- 研究结果表明,在青少年BD中,血管变化和大脑结构之间存在联系.
- 这项概念验证研究为未来研究BD中的血管-大脑接口提供了基础.
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