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- W2989776002 abstract "Hyperpolarized fumarate can be used as a probe of real-time metabolism in vivo, using carbon-13 magnetic resonance imaging. Dissolution dynamic nuclear polarization is commonly used to produce hyperpolarized fumarate, but a cheaper and faster alternative is to produce hyperpolarized fumarate via PHIP (parahydrogen-induced polarization). In this work, we trans-hydrogenate [1-13C]acetylene dicarboxylate with para-enriched hydrogen using a commercially available Ru catalyst in water to produce hyperpolarized [1-13C]fumarate. We show that fumarate is produced in 89% yield, with succinate as a side product in 11% yield. The proton polarization is converted into 13C magnetization using a constant adiabaticity field cycle, and a polarization level of 24% is achieved using 86% para-enriched hydrogen gas. We inject the hyperpolarized [1-13C]fumarate into cell suspensions and track the metabolism. This work opens the path to greatly accelerated preclinical studies using fumarate as a biomarker." @default.
- W2989776002 created "2019-12-05" @default.
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- W2989776002 date "2019-11-25" @default.
- W2989776002 modified "2023-10-06" @default.
- W2989776002 title "Real-Time Nuclear Magnetic Resonance Detection of Fumarase Activity Using Parahydrogen-Hyperpolarized [1-<sup>13</sup>C]Fumarate" @default.
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- W2989776002 doi "https://doi.org/10.1021/jacs.9b10094" @default.
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