脑病理和与脑震荡史相关的症状:超越慢性创伤性脑病变
Daria Taskina1, Cherrie Zhu2, Nicole Schwab1,2
1Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada.
Brain communications
|April 1, 2024
概括
运动员重复头部创伤可能导致症状不仅仅是由于慢性创伤性脑病变 (CTE). 不仅仅是蛋白质病变,DNA损伤也可能是脑损伤影响的关键标志物.
科学领域:
- 神经科学是一个神经科学.
- 神经病理学神经病理学
- 运动医学 运动医学
背景情况:
- 从运动中重复的头部创伤与长期的残疾症状有关.
- 了解这些症状的神经病理基础对于改善生活质量至关重要.
研究的目的:
- 研究前职业运动员中慢性临床症状和死后神经病理诊断之间的关系,这些运动员有脑震荡史.
- 探索超出蛋白质病变的潜在生物标记物,例如与脑创伤有关的DNA损伤.
主要方法:
- 追溯52名男性前职业运动员多次脑震荡的案例系列.
- 评估临床症状 (神经,精神,身体) 和脑震荡史.
- 死后神经病理学检查,将病例分类为没有重大发现,仅有CTE或其他神经退行性疾病.
- 对DNA损伤 (酸化组合素H2AX) 的分析及其与临床症状和死亡年龄的相关性.
主要成果:
- 26.9%的病例显示低阶段/低负担的CTE.
- 21.2%的人表现出类似于CTE的行为症状,没有显著的神经病理发现.
- 51.9%的人有复杂的神经退行性诊断 (例如,阿尔茨海默氏症) 与语言,记忆和感官功能障碍.
- 在所有组中都存在DNA损伤,与死亡年龄和语言功能障碍相关.
结论:
- 运动员的脑震荡后症状可能不仅仅是由慢性创伤性脑病变 (CTE) 驱动的.
- 单靠蛋白质病变可能无法解释全方位的临床表现.
- DNA损伤可能是脑创伤的潜在生物标志物,即使没有观察到的蛋白质病变.
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