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Each cerebral hemisphere can be divided into three main regions. The outermost region, the cerebral cortex, is a thin layer (2 to 4 millimeters thick) made up of gray matter, consisting of neuron cell bodies, dendrites, glial cells, and blood vessels. The middle region, or white matter, is primarily composed of myelinated nerve fibers organized into three types of large tracts: association fibers, commissures, and projection fibers. Association fibers connect different areas within the same...

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红细胞的分布宽度和大脑白质的超强度.

Ki-Woong Nam1,2, Hyung-Min Kwon3,4,5, Han-Yeong Jeong1,2

  • 1Department of Neurology, Seoul National University College of Medicine, Seoul, Korea.

Scientific reports
|November 6, 2025
PubMed
概括

红细胞分布宽度 (RDW) 与白质过强度 (WMH) 有关,这是一种脑小血管疾病 (cSVD). 这种关联在健康检查参与者中被发现,但与缺口或大脑微型出血并非如此.

关键词:
大脑缺血症大脑缺血低氧症是因为低氧症.炎症 炎症是一种炎症.红细胞是血液中的红细胞.小船病是小船的疾病.

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科学领域:

  • 神经学 神经学
  • 血液学 血液学 血液学
  • 医学诊断 医学诊断 医学诊断

背景情况:

  • 红细胞分布宽度 (RDW) 表明红细胞大小的变化,与慢性炎症和低氧化症有关.
  • 虽然RDW在心血管和肺部疾病中的预后价值已知,但其在脑血管疾病中的作用不太清楚.
  • 大脑小血管疾病 (cSVD) 包括诸如白质过强度 (WMH),缺口和大脑微血流 (CMB) 等疾病,影响神经功能.

研究的目的:

  • 调查RDW与cSVD亚型的存在和严重程度之间的关联.
  • 确定RDW是否是cSVD的潜在生物标志物,特别是WMH,缺口和CMB.

主要方法:

  • 分析了2006年至2013年间接受脑部MRI检查的3040名健康检查参与者的队列.
  • 白质超强度 (WMH) 的体积被量化,而缺口和大脑微型血流 (CMBs) 被定性评估.
  • 红细胞分布宽度 (RDW) 从完整血细胞计数中测量,并进行了多变量回归分析,以调整混因子.

主要成果:

  • 红细胞分布宽度 (RDW) 在调整为混因子 (β = 1.789,95% CI:0.115至3.463) 后显示出与白质强度 (WMH) 量有显著的关联.
  • 年龄,缩血压,白细胞计数和红细胞计数也独立地与WMH体积相关.
  • 在调整了混因子后,没有发现RDW和缺口或脑微血流 (CMB) 的存在之间有显著的关联.

结论:

  • 红细胞分布宽度 (RDW) 与大脑小血管疾病 (cSVD) 有关,特别是与白质过强度 (WMH) 的体积有关.
  • RDW可以作为WMH的潜在指标,但不能用于这个健康检查人口中的缺口或CMB.
  • 需要进一步的研究来阐明将RDW与WMH联系在一起的机制及其对脑血管健康的临床影响.