The tremendous polarization enhancement afforded by dissolution dynamic nuclear polarization (DNP) can be taken advantage of to perform preclinical in vivo molecular and metabolic imaging. Following the injection of molecules that are hyperpolarized via dissolution DNP, real-time measurements of their biodistribution and metabolic conversion can be recorded. This technology therefore provides a unique and invaluable tool for probing cellular metabolism in vivo in animal models in a noninvasive manner. It gives the opportunity to follow and evaluate disease progression and treatment response without requiring ex vivo destructive tissue assays. Although its considerable potential has now been widely recognized, hyperpolarized magnetic resonance by dissolution DNP remains a challenging method to implement for routine in vivo preclinical measurements. The aim of this article is to provide an overview of the current state-of-the-art technology for preclinical applications and the challenges that need to be addressed to promote it and allow its wider dissemination in the near future.
Optimizing dissolution dynamic nuclear polarization
From The DNP-NMR Blog:
Optimizing dissolution dynamic nuclear polarization
Bornet, A. and S. Jannin, Optimizing dissolution dynamic nuclear polarization. J Magn Reson, 2016. 264: p. 13-21.
http://www.ncbi.nlm.nih.gov/pubmed/26920826
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04-26-2016 12:03 AM
On the present and future of dissolution-DNP
From The DNP-NMR Blog:
On the present and future of dissolution-DNP
Ardenkjaer-Larsen, J.H., On the present and future of dissolution-DNP. J Magn Reson, 2016. 264: p. 3-12.
http://www.ncbi.nlm.nih.gov/pubmed/26920825
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04-22-2016 08:45 PM
[NMR paper] Optimizing water hyperpolarization and dissolution for sensitivity-enhanced 2D biomolecular NMR
Optimizing water hyperpolarization and dissolution for sensitivity-enhanced 2D biomolecular NMR
Publication date: March 2016
Source:Journal of Magnetic Resonance, Volume 264</br>
Author(s): Greg Olsen, Evgeny Markhasin, Or Szekely, Christian Bretschneider, Lucio Frydman</br>
A recent study explored the use of hyperpolarized water, to enhance the sensitivity of nuclei in biomolecules thanks to rapid proton exchanges with labile amide backbone and sidechain groups. Further optimizations of this approach have now allowed us to achieve proton polarizations...
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02-24-2016 01:30 AM
Cross polarization from (1)H to quadrupolar (6)Li nuclei for dissolution DNP
From The DNP-NMR Blog:
Cross polarization from (1)H to quadrupolar (6)Li nuclei for dissolution DNP
Perez Linde, A.J., et al., Cross polarization from (1)H to quadrupolar (6)Li nuclei for dissolution DNP. Phys Chem Chem Phys, 2014. 16(45): p. 24813-7.
http://www.ncbi.nlm.nih.gov/pubmed/25319311
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11-05-2014 04:04 PM
Enhanced performance large volume dissolution-DNP
From The DNP-NMR Blog:
Enhanced performance large volume dissolution-DNP
Bowen, S. and J.H. Ardenkjaer-Larsen, Enhanced performance large volume dissolution-DNP. J Magn Reson, 2014. 240(0): p. 90-4.
http://www.ncbi.nlm.nih.gov/pubmed/24531395
[NMR paper] In vivo 13C and 15N NMR studies of methylamine metabolism in Pseudomonas species MA.
In vivo 13C and 15N NMR studies of methylamine metabolism in Pseudomonas species MA.
Related Articles In vivo 13C and 15N NMR studies of methylamine metabolism in Pseudomonas species MA.
J Biol Chem. 1991 Jun 25;266(18):11705-13
Authors: Jones JG, Bellion E
Pseudomonas species MA was grown with methylamine as a sole source of carbon and nitrogen enabling the total flow of carbon and nitrogen into this organism to be simultaneously monitored in vivo using 13C and 15N NMR. Methylamine was rapidly and extensively incorporated into the methyl...
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08-21-2010 11:16 PM
[NMR paper] 31P NMR studies of ATP concentrations and Pi-ATP exchange in the rat kidney in vivo:
31P NMR studies of ATP concentrations and Pi-ATP exchange in the rat kidney in vivo: effects of inhibiting and stimulating renal metabolism.
Related Articles 31P NMR studies of ATP concentrations and Pi-ATP exchange in the rat kidney in vivo: effects of inhibiting and stimulating renal metabolism.
Magn Reson Med. 1990 Jun;14(3):445-60
Authors: Shine N, Xuan A, Weiner MW
Previous investigators found that cyanide (CN-) is a potent inhibitor of renal Na+ transport, while the uncoupling agent 2,4-dinitrophenol (DNP) and fructose (both which lower...