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在切尔诺贝利的辐射后神经认知缺陷清理工人:老年学方面 (第一部分)
1State Institution «National Research Center for Radiation Medicine of the National Academy of Medical Sciences of Ukraine», 53 Yuriia Illienka Str., Kyiv, 04050, Ukraine.
Problemy radiatsiinoi medytsyny ta radiobiolohii
|December 26, 2024
概括
老年切尔诺贝利清洁工患有脑血管疾病,暴露在电离辐射中,表现出显著的认知缺陷. 这些缺陷依赖于剂量,影响口语和表现智能,突出显示需要监测.
科学领域:
- 神经科学是一个神经科学.
- 放射学 放射学是指放射学
- 老年学是指老年学的学科.
背景情况:
- 老年切尔诺贝利清洁工患有慢性脑血管疾病 (CVD) 可能会出现认知障碍.
- 电离辐射 (IR) 对这一群体认知功能的长期影响需要进一步研究.
研究的目的:
- 调查在红外线暴露后的远期内患有心血管疾病的老年切尔诺贝利清理工人认知障碍的特征.
- 评估辐射剂量与神经认知缺陷的严重程度之间的关系.
主要方法:
- 使用了回顾性和前性队列研究设计.
- 一个随机抽样的老年男性切尔诺贝利清洁工 (年龄>60岁) 经过验证的心血管疾病与一个没有暴露的对照组进行了比较.
- 心理测量方法,包括韦克斯勒成人智力量表 (WAIS),用于评估认知状态和病前智商.
主要成果:
- 与对照组相比,切尔诺贝利清理工人表现出明显较低的完全和口头智力系数 (p < 0.01).
- 观察到口头和表现智能的剂量依赖性下降,较高的辐射剂量 (>50 mSv) 与认知缺陷严重程度的增加相关.
- 暴露于大于0.3 Sv的剂量与表现智商显著下降 (r = -0.46; p = 0.039) 和表现智商缺陷增加 (r = 0.55; p = 0.011).
结论:
- 老年切尔诺贝利清理工人的辐射后神经认知缺陷,存在分散的有机大脑损伤,影响两半球.
- 及时检测和监测神经认知障碍对于预防这一群体的残疾和社会适应不良至关重要.
- 非侵入性心理生理学和神经精神病学方法是研究和临床实践中管理这些认知功能障碍的有价值的工具.
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