Evolution of microglial activation in patients after ischemic stroke:: a [11C](R)-PK11195 PET study

被引:214
作者
Gerhard, A
Schwarz, J
Myers, R
Wise, R
Banati, RB
机构
[1] Hammersmith Hosp, Hammersmith Imanet, London W12 0NN, England
[2] Univ Leipzig, Dept Neurol, D-7010 Leipzig, Germany
[3] Univ Ulm, Dept Neurol, D-7900 Ulm, Germany
[4] Univ London Imperial Coll Sci Technol & Med, Fac Med, Dept Neuropathol, London, England
[5] Univ London Imperial Coll Sci Technol & Med, Fac Med, MRC, Ctr Clin Sci, London, England
[6] Univ Sydney, Sch Med Radiat Sci, BMRI, Clive & Vera Ramaciotti Ctr Brain Imaging, Sydney, NSW 1825, Australia
关键词
ischemic stroke; peripheral benzodiazepine binding site; activated microglia; C-11](R)-PK11195 PET;
D O I
10.1016/j.neuroimage.2004.09.034
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
We obtained [C-11](R)-PK11195 PET scans in six patients at different time points between 3 and 150 days after onset of ischemic stroke in order to measure the time course of microglial activation. Increased [C-11](R)-PK11195 binding around the lesion was observed as early as 3 days. Scans at later time points showed ongoing changes in the distribution of the [C-11](R)-PK11195 signal, involving the area of the primary lesion and areas distant from the primary lesion site. Our data suggest that [C-11](R)-PK11195 PET can be used to investigate both the primary lesion and remote pathological changes following Wallerian degeneration. (C) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码:591 / 595
页数:5
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