Metabolic changes in developing brain due to chronic liver disease: an in vivo longitudinal and multiparametric study using P-31-MRS (magnetic resonance spectroscopy), P-31-Magnetization transfer and H-1-MRS

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Solid-state NMR enhanced by dynamic nuclear polarization as a novel tool for ribosome structural biology

Geoffrey Bodenhausen, Diego Carnevale, Marc Anthony Caporini

The impact of Nuclear Magnetic Resonance (NMR) on studies of large macromolecular complexes hinges on improvements in sensitivity and resolution. Dynamic nuclear polarization (DNP) in the solid state can offer improved sensitivity, provided sample preparat ...

Springer Verlag2013

Localized in vivo hyperpolarization transfer sequences

Rolf Gruetter, Arnaud Comment, Tian Cheng, Mor-Miri Mishkovsky

In vivo localized and fully adiabatic homonuclear and heteronuclear polarization transfer experiments were designed and performed in the rat brain at 9.4 T after infusion of hyperpolarized sodium [1,2-(13) C(2) ] and sodium [1-(13) C] acetate. The method p ...

Wiley-Blackwell2012

Early Predictive Biomarkers for Lesion After Transient Cerebral Ischemia

Rolf Gruetter, Hongxia Lei

Background and Purpose—Despite the improving imaging techniques, it remains challenging to predict the outcome early after transient cerebral ischemia. The aim of this study was thus to identify early metabolic biomarkers for outcome prediction. Methods—We ...

2011

Mannich products of kojic acid and N-heterocycles and their Ru(II)-arene complexes: Synthesis, characterization and stability

Paul Joseph Dyson, Christian Hartinger, Alexey Nazarov

Ru(II)-η6-p-cymene compds. bearing pyrone-derived ligands, which were obtained by Mannich reactions between kojic acid and piperidine or morpholine analogs, have been synthesized. The compds. were characterized by NMR spectroscopy, mass spectrometry, therm ...

Elsevier2010

Direct in vivo measurement of glycine and the neurochemical profile in the rat medulla oblongata

Rolf Gruetter, Lijing Xin, João Miguel das Neves Duarte, Giulio Gambarota

The medulla oblongata (MO) contains a high density of glycinergic synapses and a particularly high concentration of glycine The aims of this study were to measure directly in vivo the neurochemical profile, including glycine, in MO using a spin-echo-based ...

Wiley-Blackwell2010

Structural Studies of the Ionic Liquid 1-Ethyl-3-methylimidazolium Tetrafluoroborate in Dichloromethane Using a Combined DFT-NMR Spectroscopic Approach

Paul Joseph Dyson, Ana Vidis

DFT methods in combination with NMR spectroscopy are used to investigate possible variants of the mol. structure of the ion pairs of the ionic liq. (IL) 1-ethyl-3-methylimidazolium tetrafluoroborate, [EMIM][BF4], in dichloromethane. According to the comput ...

2009

Preparation of stable AsBr4+ and I2As-PI3+ salts. Why didn't we succeed to prepare AsI4+ and As2X5+? A combined experimental and theoretical study

In analogy to the authors' successful PX2+ insertion reactions, an AsX2+ insertion route was explored to obtain new arsenic halogen cations. Two new salts were prepd.: AsBr4+[Al(OR)4]-, starting from AsBr3, Br2 and Ag[Al(OR)4], and I2As-PI3+[Al(OR)]4 from ...

2005