Real‐Time Interrogation of Aspirin Reactivity, Biochemistry, and Biodistribution by Hyperpolarized Magnetic Resonance Spectroscopy
作者:Niki M. Zacharias、Argentina Ornelas、Jaehyuk Lee、Jingzhe Hu、Jennifer S. Davis、Nasir Uddin、Shivanand Pudakalakatti、David G. Menter、Jose A. Karam、Christopher G. Wood、Ernest T. Hawk、Scott Kopetz、Eduardo Vilar、Pratip K. Bhattacharya、Steven W. Millward
DOI:10.1002/anie.201812759
日期:2019.3.22
Hyperpolarized magnetic resonance spectroscopy enables quantitative, non-radioactive, real-time measurement of imaging probe biodistribution and metabolism in vivo. Here, we investigate and report on the development and characterization of hyperpolarized acetylsalicylic acid (aspirin) and its use as a nuclear magnetic resonance (NMR) probe. Aspirin derivatives were synthesized with single- and double-13
超极化磁共振波谱能够对成像探针的体内生物分布和代谢进行定量,非放射性的实时测量。在这里,我们调查和报告的超极化乙酰水杨酸(阿司匹林)的发展和表征及其作为核磁共振(NMR)探针的用途。合成了具有单和双13 C标签的阿司匹林衍生物,并分别通过极化为4.7%和3%的动态核极化来超极化。标记的乙酰基和羧基羰基的纵向弛豫常数(T1)约为30秒,支持体内成像和光谱学应用。超极化阿司匹林的体外水解,转乙酰化和白蛋白结合很容易通过13 C-NMR光谱实时监测。超极化