Concept

Cétogenèse

Publications associées (33)

In Vivo Evidence for Lactate as a Neuronal Energy Source

Cerebral energy metabolism is a highly compartmentalized and complex process in which transcellular trafficking of metabolites plays a pivotal role. Over the past decade, a role for lactate in fueling the energetic requirements of neurons has emerged. Furt ...

2011

Compartmentalized Cerebral Metabolism of [1,6-(13)C]Glucose Determined by in vivo (13)C NMR Spectroscopy at 14.1 T

Rolf Gruetter, Bernard Lanz, João Miguel das Neves Duarte

Cerebral metabolism is compartmentalized between neurons and glia. Although glial glycolysis is thought to largely sustain the energetic requirements of neurotransmission while oxidative metabolism takes place mainly in neurons, this hypothesis is matter o ...

Frontiers Research Foundation2011

Altered Glycogen Metabolism in Cultured Astrocytes from Mice with Chronic Glutathione Deficit; Relevance for Neuroenergetics in Schizophrenia

Pierre Magistretti, Igor Allaman, Kim Do, Jean-Marie Petit

Neurodegenerative and psychiatric disorders including Alzheimer's, Parkinson's or Huntington's diseases and schizophrenia have been associated with a deficit in glutathione (GSH). In particular, a polymorphism in the gene of glutamate cysteine ligase modul ...

Public Library of Science2011

Glial Glycogen Metabolism

Igor Allaman

Glycogen represents the largest energy reserve of the brain and is almost quite exclusively localized in astrocytes. In the first part of this article, a summary of our knowledge concerning brain glycogen metabolism and its regulation is presented. The sec ...

Academic Press2009

Distribution of the monocarboxylate transporter MCT2 in human cerebral cortex: an immunohistochemical study

Pierre Magistretti, Luc Pellerin, Stephanie Clarke

The monocarboxylate transporter MCT2 belongs to a large family of membrane proteins involved in the transport of lactate, pyruvate and ketone bodies. Although its expression in rodent brain has been well documented, the presence of MCT2 in the human brain ...

2008

LRP1 controls intracellular cholesterol storage and fatty acid synthesis through modulation of Wnt signaling

Johan Auwerx, Lei Zhou

The low-density lipoprotein receptor-related protein LRP1 is a cell surface receptor with functions in diverse physiological pathways, including lipid metabolism. Here we show that LRP1-deficient fibroblasts accumulate high levels of intracellular choleste ...

2008

Specific SIRT1 activation mimics low energy levels and protects against diet-induced metabolic disorders by enhancing fat oxidation

Johan Auwerx, Carlos Canto Alvarez, Chikage Mataki

The NAD(+)-dependent deacetylase SIRT1 controls metabolic processes in response to low nutrient availability. We report the metabolic phenotype of mice treated with SRT1720, a specific and potent synthetic activator of SIRT1 that is devoid of direct action ...

2008

Neuron-glia metabolic coupling and plasticity

Pierre Magistretti

The coupling between synaptic activity and glucose utilization (neurometabolic coupling) is a central physiological principle of brain function that has provided the basis for 2-deoxyglucose-based functional imaging with positron emission tomography (PET). ...

2006

Neuroglial metabolism in the awake rat brain: CO2 fixation increases with brain activity

Rolf Gruetter

Glial cells are thought to supply energy for neurotransmission by increasing nonoxidative glycolysis; however, oxidative metabolism in glia may also contribute to increased brain activity. To study glial contribution to cerebral energy metabolism in the un ...

2004

Sulfur dioxide mediated syntheses of polyene containing natural products

Laure Bouchez

The goal of this thesis was to open a new route to the synthesis of conjugated trienes using a new SO2-based C-C bond forming reactions developed in Lausanne. In addition, the potential of SO2 for applications in synthetic organic chemistry has been exploi ...

EPFL2004

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