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脑卒中后转位蛋白表达动力学和与慢性心脏病发作的相关性:一项[123I]-CLINDE-SPECT研究
Per Jensen1,2, Brice Ozenne1,3, Per Meden4
1Neurobiology Research Unit, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
概括
转位蛋白 (TSPO) 水平在中风病变中降低,但随着时间的推移,连接和非连接的大脑区域的水平会增加. 小脑中晚期TSPO上调与中风后的慢性心脏病发作体积相关.
科学领域:
- 神经成像是一种神经成像.
- 分子成像学分子成像学
- 中风研究研究中风研究
背景情况:
- 脑卒中会导致脑组织发生复杂的变化.
- 转位蛋白 (TSPO) 是神经炎症的标志物.
- 了解中风后的TSPO动态对于治疗开发至关重要.
研究的目的:
- 在缺血性中风后,在各种大脑区域纵向跟踪转位蛋白 (TSPO) 表达.
- 为了研究TSPO水平和慢性脑梗塞体积之间的关系.
主要方法:
- 使用TSPO标记器进行了SPECT成像,对12名中风患者进行了中风后10,41和128天的成像.
- 在受损,连接和非连接的大脑区域中量化TSPO表达.
- 结构性MRI被用于评估慢性心脏病发作体积.
主要成果:
- 在128天的时间里,TSPO水平在受损地区下降了 (24% - 33%),但在连接 (35% - 69%) 和非连接 (53% - 77%) 的地区显著增加.
- 在128天 (r2=0.72) 时,观察到小脑的TSPO表达和慢性心脏病发作体积之间的正相关性.
结论:
- 这项研究为人类脑中中风后TSPO表达的时空动态提供了新的见解.
- 特定区域的晚期TSPO上调与慢性脑梗塞的程度有关.
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