在皮质体纤维的皮质分布的性别差异
Mudathir Bakhit1, Masazumi Fujii1
1Neurosurgery, Fukushima Medical University, Fukushima, JPN.
Cureus
|April 11, 2024
概括
这项研究表明,虽然体体 (CC) 体积和分数异质性没有显著的性别差异,但女性大脑在皮质区域中表现出更广泛的CC纤维分布,表明细微的结构变化.
科学领域:
- 神经科学是一个神经科学.
- 人类解剖学 人类解剖学
- 脑部成像 脑部成像
背景情况:
- 基于性别的脑结构研究在过去的一个世纪里产生了不一致的发现.
- 之前的研究通常集中在中腰体 (CC) 测量上,关于性别差异的结果受到争议.
- 一些研究表明,即使考虑到整体大脑大小,CC差异仍然存在.
研究的目的:
- 为了研究整个体 (CC) 纤维系统的形态上的基于性别的差异,而不仅仅是它的中腰骨结构.
- 分析分数异构 (FA),体积比和CC流线的皮质分布中的性别差异.
- 探索白质路径中可能存在的与性别相关的变异.
主要方法:
- 利用先进的神经成像和通用Q成像路谱来构建CC流线.
- 使用学生的t测试,评估分数异构 (FA) 中的性别差异.
- 使用ANCOVA分析正常化的CC体积和细分,以总白质体积为共变量.
主要成果:
- 在分数异质性 (FA) 或正常化CC体积方面没有观察到统计学上显著的性别差异.
- 虽然女性表现出更大的正常化CC流线体积,但在同变量调整后,这种差异并不显著.
- 在女性中,CC流线显示出更广泛的皮质分布,包括前额,顶部和部区域.
结论:
- 在白质通路形态上存在与性别相关的变异,特别是在CC纤维的皮质分布中.
- 与男性相比,女性表现出CC纤维的皮质投射更广泛.
- 对连接模式的进一步研究是必要的,以充分理解基于性别的大脑差异.
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