A hydrogen peroxide-responsive hyperpolarized 13C MRI contrast agent.
A hydrogen peroxide-responsive hyperpolarized 13C MRI contrast agent.
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DOI:
10.1021/ja111589a
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发表时间:
2011-03-23
影响因子:
15
通讯作者:
Chang, Christopher J.
中科院分区:
文献类型:
--
作者:
Lippert, Alexander R.;Keshari, Kayvan R.;Kurhanewicz, John;Chang, Christopher J.
We report a new reaction-based approach for the detection of hydrogen peroxide (H2O2) using hyperpolarized 13C magnetic resonance imaging (13C MRI) and the H2O2-mediated oxidation of α-ketoacids to carboxylic acids. 13C-benzoylformic acid (13C-BFA) reacts selectively with H2O2 over other reactive oxygen species (ROS) to generate 13C-benzoic acid (BA) and can be hyperpolarized using dynamic nuclear polarization (DNP), providing a method for dual-frequency detection of H2O2. Phantom images collected using frequency-specific imaging sequences demonstrate the efficacy of this responsive contrast agent to monitor H2O2 at pre-clinical field strengths. The combination of reaction-based detection chemistry and hyperpolarized 13C magnetic resonance imaging (13C MRI) provides a potentially powerful new methodology for non-invasive multianalyte imaging in living systems.
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影响因子:
15
作者:
Dickinson BC;Huynh C;Chang CJ
通讯作者:
Chang CJ
影响因子:
3.8
作者:
AMIN, YM;NAGWEKAR, JB
通讯作者:
NAGWEKAR, JB
影响因子:
3.3
作者:
Golman, K;Axelsson, O;Petersson, JS
通讯作者:
Petersson, JS
影响因子:
3.8
作者:
AMIN, YM;NAGWEKAR, JB
通讯作者:
NAGWEKAR, JB
影响因子:
15
作者:
Chang, MCY;Pralle, A;Chang, CJ
通讯作者:
Chang, CJ