Publications by Hanne Frenkel | EPFL Graph Search

Characterization of sustained BOLD activation in the rat barrel cortex and Neurochemical consequences

Rolf Gruetter, Lijing Xin, Nathalie Just, Hanne Frenkel

To date, only a couple of functional MR spectroscopy (fMRS) studies were conducted in rats. Due to the low temporal resolution of 1H-MRS techniques, prolonged stimulation paradigms are necessary for investigating the metabolic outcome in the rat brain duri ...

Elsevier2013

In vivo Magnetic Resonance Spectroscopy (MRS) studies of brain metabolism during ammonia infusion

Rolf Gruetter, Cristina Ramona Cudalbu, Bernard Lanz, Hanne Frenkel

2010

Imaging glutamine synthesis rates in the hyperammonemic rat brain

Rolf Gruetter, Cristina Ramona Cudalbu, Bernard Lanz, Hanne Frenkel

2010

Investigation of spatial distribution of metabolites in rat brain at elevated plasma glucose levels

Rolf Gruetter, Cristina Ramona Cudalbu, Hanne Frenkel

2010

Alteration of brain glycogen turnover in the conscious rat after 5h of prolonged wakefulness

Rolf Gruetter, Pierre Magistretti, Bernard Lanz, Jean-Marie Petit, Hanne Frenkel

Although glycogen (Glyc) is the main carbohydrate storage component, the role of Glyc in the brain during prolonged wakefulness is not clear. The aim of this study was to determine brain Glyc concentration ([]) and turnover time (tau) in euglycemic conscio ...

Elsevier2009

Selective Resonance Suppression H-1-[C-13] NMR Spectroscopy With Asymmetric Adiabatic RF Pulses

Rolf Gruetter, Lijing Xin, Hanne Frenkel

Despite obvious improvements in spectral resolution at high magnetic field, the detection of C-13 labeling by H-1-[C-13] NMR spectroscopy remains hampered by spectral overlap, such as in the spectral region of H-1 resonances bound to C3 of glutamate (Glu) ...

Wiley-Blackwell2009

Alteration of brain glycogen turnover in the awake rat

Pierre Magistretti, Rolf Gruetter, Bernard Lanz, Jean-Marie Petit, Hanne Frenkel

Nature Publishing Group2009

Time-resolved measurement of rat brain glycogen absolute concentration in vivo

Rolf Gruetter, Lijing Xin, Hongxia Lei, Ruud van Heeswijk, Hanne Frenkel, Sabrina Laus

Wiley-Blackwell2009

Biochemical evidence for a significant blood-brain barrier for glucose in hypothalamus using the reversible Michaelis-Menten model

Rolf Gruetter, Hongxia Lei, Carole Poitry-Yamate, Hanne Frenkel

Wiley-Blackwell2009

Mapping glucose and lactate concentrations with microliter resolution in rat brain using short-echo-time spectroscopic imaging

Rolf Gruetter, Cristina Ramona Cudalbu, Hanne Frenkel

2009