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Arnaud Comment

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Publications associées (110)

Myocardial fatty acid metabolism probed with hyperpolarized [1-13C]octanoate

Arnaud Comment, Josefina Adriana Maria Bastiaansen, Hikari Ananda Infinity Yoshihara

2015

Hyperpolarized 13C lactate as a substrate for in vivo metabolic studies in skeletal muscle

Arnaud Comment, Rolf Gruetter, Josefina Adriana Maria Bastiaansen, Yuhei Takado, Hikari Ananda Infinity Yoshihara

Resting skeletal muscle has a preference for the oxidation of lipids compared to carbohydrates and a shift towards carbohydrate oxidation is observed with increasing exercise. Lactate is not only an end product in skeletal muscle but also an important meta ...

2014

Assessing energy metabolism in the ischemic rat heart with hyperpolarized 13C pyruvate

Arnaud Comment, Josefina Adriana Maria Bastiaansen, Hikari Ananda Infinity Yoshihara

2014

Hyperpolarized Magnetic Resonance as a Sensitive Detector of Metabolic Function

Arnaud Comment

Hyperpolarized magnetic resonance allows for noninvasive measurements of biochemical reactions in vivo. Although this technique provides a unique tool for assaying enzymatic activities in intact organs, the scope of its application is still elusive for the ...

Amer Chemical Soc2014

Measuring In Vivo Myocardial Substrate Competition Using Hyperpolarized 13C Magnetic Resonance

Arnaud Comment, Josefina Adriana Maria Bastiaansen

2014

In vivo real-time metabolic imaging using frequency selective bSSFP and hyperpolarized compounds

Arnaud Comment, Jean-Noël Hyacinthe, Najat Salameh, Andrea Capozzi

2014

Assessing Energy Metabolism In The Ischemic Rat Heart With Hyperpolarized C-13 Pyruvate

Arnaud Comment, Josefina Adriana Maria Bastiaansen, Hikari Ananda Infinity Yoshihara

2014

Hyperpolarized 13C lactate as a substrate for in vivo metabolic studies in skeletal muscle

Arnaud Comment, Rolf Gruetter, Josefina Adriana Maria Bastiaansen, Yuhei Takado, Hikari Ananda Infinity Yoshihara

2014

Probing energy metabolism in the ischemic rat heart with hyperpolarized 13C MRS

Arnaud Comment, Josefina Adriana Maria Bastiaansen, Hikari Ananda Infinity Yoshihara

2014

Studying glioblastoma progression in a rat model of human glioma initiating cells using 1H MRS and DTI

Arnaud Comment, Rolf Gruetter, Cristina Ramona Cudalbu, Mor-Miri Mishkovsky, Emine Can

2014

Assessing energy metabolism non-invasively in the ischemic-reperfused rat heart with hyperpolarized C-13 pyruvate

Arnaud Comment, Josefina Adriana Maria Bastiaansen, Hikari Ananda Infinity Yoshihara

2014

Ultra-High Field Birdcage Coils: a Comparison Study at 14.1T

Arnaud Comment, Rolf Gruetter, Hongxia Lei, Tian Cheng

An essential feature of magnetic resonance (MR) probes for magnetic resonance imaging and spectroscopy is the ability to generate uniform B-1(+) excitation in a volume of interest. When the magnetic field strength is increased, leading to an increase in re ...

Ieee2014

Purely endogenous hyperpolarized [1-13C]Pyruvate solutions for metabolic study in glioblastoma rat models

Arnaud Comment, Rolf Gruetter, Mor-Miri Mishkovsky, Tim Rolf Eichhorn, Emine Can

2014

In vivo enzymatic activity of acetylCoA synthetase in skeletal muscle revealed by (13)C turnover from hyperpolarized [1-(13)C]acetate to [1-(13)C]acetylcarnitine

Arnaud Comment, Rolf Gruetter, João Miguel das Neves Duarte, Mor-Miri Mishkovsky, Tian Cheng, Josefina Adriana Maria Bastiaansen

BACKGROUND: Acetate metabolism in skeletal muscle is regulated by acetylCoA synthetase (ACS). The main function of ACS is to provide cells with acetylCoA, a key molecule for numerous metabolic pathways including fatty acid and cholesterol synthesis and the ...

Elsevier Science Bv2013

Methods for nuclear magnetic resonance (NMR) or magnetic resonance imaging (MRI) measurements using long-lived states

Arnaud Comment, Geoffrey Bodenhausen, Sami Jannin, Riddhiman Sarkar, Paul Romeo Vasos

A method for nuclear magnetic resonance (NMR) or magnetic resonance imaging (MRI) measurements, includes creation of enhanced polarization of nuclei of a first kind within a sample in a magnetic field at cryogenic temperatures and transfer of the polarized ...

2013

Automated transfer and injection of hyperpolarized molecules with polarization measurement prior to in vivo NMR

Arnaud Comment, Mor-Miri Mishkovsky, Tian Cheng, Josefina Adriana Maria Bastiaansen

Hyperpolarized magnetic resonance via dissolution dynamic nuclear polarization necessitates the transfer of the hyperpolarized molecules from the polarizer to the imager prior to in vivo measurements. This process leads to unavoidable losses in nuclear pol ...

2013

Brain metabolism in rat model of human glioma initiating cells

Arnaud Comment, Rolf Gruetter, Cristina Ramona Cudalbu, Mor-Miri Mishkovsky

2013

A link between short-range and long-range properties of random sphere packings

Arnaud Comment, Gérard Gremaud, Daniele Mari, Alessandro Luigi Sellerio, Riccardo Balzan

We present a high precision particle-by-particle 3D reconstruction of granular systems composed of monodispersed spheres (sphere packings); the experimental approach is based on magnetic resonance imaging techniques. Our measurements revealed a strong corr ...

Springer Berlin Heidelberg2013

Hyperpolarization of 129Xe by sublimation DNP using photo-activated radical precursors

Arnaud Comment, Christophe Roussel, François Lazeyras, Tim Rolf Eichhorn, Jean-Noël Hyacinthe, Najat Salameh, Andrea Capozzi

2013

Acetylcarnitine turnover in rat skeletal muscle measured in vivo using localized 13C NMR at 14.1 T

Arnaud Comment, Rolf Gruetter, João Miguel das Neves Duarte, Josefina Adriana Maria Bastiaansen

2013

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