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霍浦金斯大学研究人员利用放射性追踪剂和MRI对比试剂跟踪被注射入狗体内的干细胞, 这些狗已被外科式诱导心脏病。他们发现放射性追踪剂优于标准MRI的示踪能力, 他们能看见干细胞进入心脏以及随后的其它器官譬如肝脏, 肾脏和脾脏。应用这种显相技术, 干细胞被注入体内七天后依然可被看见。该研究成果被发表在9月6日出版的<<循环>>杂志。本研究有利于临床试验中观察干细胞是否被用于修复损坏的人的心脏。New Technique Tracks Stem Cells' Progress
Scientists watched as the cells made their way to the heart and beyond
Scientists have discovered a noninvasive way to track the movement of stem cells used to treat animal hearts following a heart attack, according to a new study.
The advance should prove useful in clinical trials aimed at seeing whether stem cells could be used to repair damaged human hearts, according to researchers at Johns Hopkins University, Baltimore.
Reporting in the Sept. 6 issue of Circulation, researchers in the university's department of radiology and Institute of Cell Engineering used radioactive tracers and MRI contrast agents to follow stem cells injected into six dogs that had suffered surgically induced heart attacks. Source: HealthDay
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