用Gd (III) 基对比剂进行分子磁共振成像:挑战和关键进展
1Departments of Chemistry, Molecular Biosciences, Neurobiology, and Radiology Northwestern University , Evanston , Illinois 60208 , United States.
Journal of the American Chemical Society
|October 9, 2019
概括
生物反应性对比剂增强了分子成像的磁共振成像 (MRI). 通过对体内特定的生化事件作出反应,这些药物提供了新的诊断和治疗应用.
科学领域:
- 生物医学成像
- 分子成像
- 纳米技术
背景情况:
- 个性化医疗需要了解细胞和分子疾病.
- 磁共振成像 (MRI) 提供了解剖学和功能数据,但对分子成像缺乏灵敏度.
- 生物反应性基对比剂 (GBCA) 于1997年推出,用于增强分子应用的MRI.
研究的目的:
- 审查生物响应探测器的设计策略.
- 突出生物反应性GBCA开发和体内应用的最新进展.
- 讨论这些分子成像剂的临床转化潜力.
主要方法:
- 条件保留或激活的GBCA的发展.
- 对特定生物化学事件的反应剂的设计.
- 使用MRI信号变化作为分子事件的读数.
主要成果:
- 生物反应性GBCA显示出可视化基因表达,神经元信号和荷尔蒙分泌的潜力.
- 这些进展有助于体内应用和潜在的临床转化.
- 这些探测器为当前的诊断和预测挑战提供了解决方案.
结论:
- 生物反应性GBCA正在扩大MRI的成像能力.
- 这些药物可使生物化学过程的非侵入性可视化.
- 这一领域正在迅速向诊断和神经测试领域的临床应用发展.
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