Igor Allaman

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Publications associées (33)

Differential effects of pro- and anti-inflammatory cytokines alone or in combinations on the metabolic profile of astrocytes

Pierre Magistretti, Igor Allaman

We have previously reported that the pro-inflammatory cytokines tumor necrosis factor-α (TNFα) and interleukin-1β (IL-1β) induce profound modifications of the metabolic profile of astrocytes. The present study was undertaken to further characterize the eff ...

Wiley-Blackwell2011

Fluoxetine regulates the expression of neurotrophic/growth factors and glucose metabolism in astrocytes

Jean-Luc Martin, Pierre Magistretti, Igor Allaman

RATIONALE: The pharmacological actions of most antidepressants are ascribed to the modulation of serotonergic and/or noradrenergic transmission in the brain. During therapeutic treatment for major depression, fluoxetine, one of the most commonly prescribed ...

Springer Verlag2011

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

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

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

Astrocyte-neuron metabolic relationships: for better and for worse

Pierre Magistretti, Igor Allaman

In recent years, previously unsuspected roles of astrocytes have been revealed, largely owing to the development of new tools enabling their selective study in situ. These exciting findings add to the large body of evidence demonstrating that astrocytes pl ...

Elsevier2011

Role of the Glyoxalase System in Astrocyte-Mediated Neuroprotection

Pierre Magistretti, Igor Allaman, Jean-Marie Petit, Thierry Laroche, Jiangyan Yang

The glyoxalase system is the most important pathway for the detoxification of methylglyoxal (MG), a highly reactive dicarbonyl compound mainly formed as a by-product of glycolysis. MG is a major precursor of advanced glycation end products (AGEs), which ar ...

2011

Comment on recent modeling studies of astrocyte-neuron metabolic interactions

Pierre Magistretti, Luc Pellerin, Renaud Jolivet, Igor Allaman

Recent years have seen a surge in mathematical modeling of the various aspects of neuron-astrocyte interactions, and the field of brain energy metabolism is no exception in that regard. Despite the advent of biophysical models in the field, the long-lastin ...

Nature Publishing Group2010

Glycogen metabolism as a marker of astrocyte differentiation

Pierre Magistretti, Luc Pellerin, Igor Allaman

Glycogen is a hallmark of mature astrocytes, but its emergence during astrocytic differentiation is unclear. Differentiation of E14 mouse neurospheres into astrocytes was induced with fetal bovine serum (FBS), Leukemia Inhibitory Factor (LIF), or Ciliary N ...

2009

Cellular Immunity And Pathological Alterations In Ms Grey Matter

Pierre Magistretti, Igor Allaman

2009

Amyloid-Beta Modifies Astrocytic Metabolic Phenotype

Pierre Magistretti, Hilal Lashuel, Igor Allaman, David Viertl

2009

Expression of brain-derived neurotrophic factor is not modulated by chronic mild stress in the rat hippocampus and amygdala

Jean-Luc Martin, Pierre Magistretti, Igor Allaman

Accumulating evidence supports a role for brain-derived neurotrophic factor (BDNF) in depression. However, most of these studies have been performed in animal models that have a low face validity with regard to the human disease. Here, we examined the regu ...

2009

Mechanisms Of Glycogen Metabolism Regulation In Astrocytes

Pierre Magistretti, Igor Allaman

2009

Modulation of astrocytic metabolic phenotype by proinflammatory cytokines

Pierre Magistretti, Igor Allaman

Astrocytes play an important role in nervous system homeostasis. In particular, they contribute to the regulation of local energy metabolism and to oxidative stress defence. In previous experiments, we showed that long-term treatment with interleukin 1alph ...

2008

Glycogen: a Trojan horse for neurons

Pierre Magistretti, Igor Allaman

2007

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