The results indicate that ~(99)Tc~(m)-MAMA-DMABP has fairly high initial brain uptake and fast brain clearance in normal mice. Brain uptake is 0.88%/g at 2 min post i.v. injection.

• 实验结果表明；99Tcm-MAMA-DMABP具有较高的初始脑摄取；较快的正常脑组织清除；尾静脉注射后2 min的脑摄取达0.；88%25/g；2 min与60 min的脑摄取率比值为2