Research Topics
| P J MagistrettiSummaryAffiliation: University of Lausanne Country: Switzerland Publications
| Collaborators
|
Detail Information
Publications
[Functional brain imaging: role metabolic coupling between astrocytes and neurons]P J Magistretti
Institut de Physiologie, Faculte de Medecine, Universite de Lausanne
Rev Med Suisse Romande 120:739-42. 2000..These data support the notion that astrocytes markedly contribute to the FDG-PET signal...
VIP and PACAP in the CNS: regulators of glial energy metabolism and modulators of glutamatergic signalingP J Magistretti
Laboratoire de Recherche Neurologique, Faculte de Medecine, Universite de Lausanne, Switzerland
Ann N Y Acad Sci 865:213-25. 1998..These effects indicate that VIP can actually increase the strength of glutamate-mediated neurotransmission...
Cellular mechanisms of brain energy metabolism and their relevance to functional brain imagingP J Magistretti
Institut de Physiologie, Faculte de Medecine, Lausanne, Switzerland
Philos Trans R Soc Lond B Biol Sci 354:1155-63. 1999..This conclusion does not question the validity of the 2-DG-based techniques, rather it provides a cellular and molecular basis for these functional brain imaging techniques...
Evidence supporting the existence of an activity-dependent astrocyte-neuron lactate shuttleL Pellerin
Institut de Physiologie, Universite de Lausanne, Switzerland
Dev Neurosci 20:291-9. 1998..This set of data is consistent with the existence of an activity-dependent astrocyte-neuron lactate shuttle for the supply of energy substrates to neurons...
Glycogen metabolism as a marker of astrocyte differentiationJ F Brunet
Neurosurgery Research Group, CHUV FBM UNIL, Lausanne, Switzerland
J Cereb Blood Flow Metab 30:51-5. 2010..These results show that glycogen metabolism constitutes a useful marker of astrocyte differentiation...
Expression of monocarboxylate transporter mRNAs in mouse brain: support for a distinct role of lactate as an energy substrate for the neonatal vs. adult brainL Pellerin
Institut de Physiologie et Laboratoire de Recherche du Service de Neurologie du Centre Hospitalier Universitaire Vaudois, Faculte de Medecine, Universite de Lausanne, 7 rue du Bugnon, 1005 Lausanne, Switzerland
Proc Natl Acad Sci U S A 95:3990-5. 1998....
Insights into the mechanisms of ifosfamide encephalopathy: drug metabolites have agonistic effects on alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)/kainate receptors and induce cellular acidification in mouse cortical neuronsJ Y Chatton
Institute of Physiology and Laboratory of Neurological Research, Department of Neurology, University of Lausanne Medical School, Lausanne, Switzerland
J Pharmacol Exp Ther 299:1161-8. 2001..Both processes could provide the biochemical basis of the observed ifosfamide-associated encephalopathy...
Glucose and lactate are equally effective in energizing activity-dependent synaptic vesicle turnover in purified cortical neuronsF D Morgenthaler
Department of Physiology, University of Lausanne, Lausanne, Switzerland
Neuroscience 141:157-65. 2006..Thus, lactate appears to be equivalent to glucose for sustaining synaptic vesicle turnover in cultured cortical neurons during activity...
Role of neuron-glia interaction in the regulation of brain glucose utilizationL Pellerin
Institut de Physiologie, , Lausanne, Switzerland
Diabetes Nutr Metab 15:268-73; discussion 273. 2002
Induction of brain aquaporin 9 (AQP9) in catecholaminergic neurons in diabetic ratsJ Badaut
Neurosurgery Research Group, CHUV UNIL, Lausanne, Switzerland
Brain Res 1188:17-24. 2008..These results show that the level of expression of brain AQP9 is affected by variations of the concentration of insulin in a diabetic model and in vitro...
Astrocytes as a predominant cellular site of (99m)Tc-HMPAO retentionS Zerarka
Institute of Physiology, University of Lausanne, Lausanne, Switzerland
J Cereb Blood Flow Metab 21:456-68. 2001..In addition, the data also suggest that specific alterations in glial cell metabolism could explain flow-independent changes in (99m)Tc-HMPAO retention in the brain as observed by SPECT in some pathologies...
Early acquisition of typical metabolic features upon differentiation of mouse neural stem cells into astrocytesJ F Brunet
Service of Neurosurgery, CHUV, Lausanne, Switzerland
Glia 46:8-17. 2004..Altogether, our results show that acquisition of some specific metabolic features by astrocytes occurs early in their differentiation process and that LIF represents a candidate signal to induce their expression...
A quantitative analysis of L-glutamate-regulated Na+ dynamics in mouse cortical astrocytes: implications for cellular bioenergeticsJ Y Chatton
Institute of Physiology and Laboratory of Neurological Research, Department of Neurology, University of Lausanne Medical School, Rue du Bugnon 7, CH 1005 Lausanne, Switzerland
Eur J Neurosci 12:3843-53. 2000..Indeed, extracellular glutamate concentrations of 10 microM already markedly increase the energetic demands of the astrocytes...
Distribution of Aquaporin 9 in the adult rat brain: preferential expression in catecholaminergic neurons and in glial cellsJ Badaut
Departement de Neurochirurgie, CHUV BH19 208, 1011 Lausanne, Switzerland
Neuroscience 128:27-38. 2004....
Effects of glial glutamate transporter inhibitors on intracellular Na+ in mouse astrocytesJ Y Chatton
Institute of Physiology and Laboratory of Neurological Research, Department of Neurology, University of Lausanne Medical School, Rue du Bugnon 7, CH 1005 Lausanne, Switzerland
Brain Res 893:46-52. 2001..In view of the complete reversibility of its effects, TBOA represents a very useful pharmacological tool for studies of glutamate transporters...
Cell-specific localization of monocarboxylate transporters, MCT1 and MCT2, in the adult mouse brain revealed by double immunohistochemical labeling and confocal microscopyK Pierre
Institut de Physiologie, Rue du Bugnon 7, 1005, Lausanne, Switzerland
Neuroscience 100:617-27. 2000..In conclusion, these observations are consistent with the possibility that lactate, produced and released by astrocytes (via MCT1), could be taken up (via MCT2) and used by neurons as an energy substrate...
The contribution of astrocytes to the 18F-2-deoxyglucose signal in PET activation studiesP J Magistretti
Laboratoire de Recherche Neurologique, Institut de Physiologie et Service de Neurologie du CHUV, Faculte de Medecine, Universite de Lausanne, Switzerland
Mol Psychiatry 1:445-52. 1996..These data support the notion that astrocytes markedly contribute to the FDG-PET signal. This perspective may also provide renewed insights for the interpretation of FDG-PET studies in psychiatric disorders...
Relationship between L-glutamate-regulated intracellular Na+ dynamics and ATP hydrolysis in astrocytesP J Magistretti
Department of Physiology, University of Lausanne and CHUV, Lausanne, Switzerland
J Neural Transm 112:77-85. 2005..e. increased ATP). Taken together, this study demonstrates the tight correlation between glutamate transport, Na+ homeostasis and ATP levels in astrocytes...
Cloning, localization and induction of mouse brain glycogen synthaseG Pellegri
Laboratoire de Recherche Neurologique, Institut de Physiologie et Service de Neurologie du CHUV, Faculté de Médecine Université de Lausanne, Switzerland
Brain Res Mol Brain Res 38:191-9. 1996..Vasoactive intestinal peptide and noradrenaline, two neurotransmitters previously shown to induce a glycogen resynthesis in cultured astrocytes, upregulate the expression of glycogen synthase mRNA in this cell type but not in neurons...
Patterns of calcium-binding proteins in human inferior colliculus: identification of subdivisions and evidence for putative parallel systemsE Tardif
Institut de Physiologie, , Rue du Bugnon 7, 1005 Lausanne, Switzerland
Neuroscience 116:1111-21. 2003....
Aquaporin 1 and aquaporin 4 expression in human brain after subarachnoid hemorrhage and in peritumoral tissueJ Badaut
Department of Neurosurgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
Acta Neurochir Suppl 86:495-8. 2003..These results reinforce the hypothesis that AQPs may be involved in the dynamics of brain edema formation or resolution. Further studies are needed to understand their functional role...
Noradrenaline reduces synaptic responses in normal and tottering mouse entorhinal cortex via alpha 2 receptorsE Pralong
Institut de Physiologie, Universite de Lausanne, Switzerland
Neurosci Lett 179:145-8. 1994..It is concluded that NA can inhibit via an alpha 2 receptor-mediated action synaptic responses in the superficial layers of the EC...
Similar perisynaptic glial localization for the Na+,K+-ATPase alpha 2 subunit and the glutamate transporters GLAST and GLT-1 in the rat somatosensory cortexN Cholet
Laboratory of Cerebrovascular Research, Montreal Neurological Institute, McGill University, 3801 University Street, Montreal, Quebec, Canada, H3A 2B4
Cereb Cortex 12:515-25. 2002..Altogether these results demonstrate that alpha(2), GLAST and GLT-1 have comparable perisynaptic distribution within cortical astrocytes most likely associated with glutamatergic synapses...
Brain energy metabolism in Alzheimer's disease: 99mTc-HMPAO SPECT imaging during verbal fluency and role of astrocytes in the cellular mechanism of 99mTc-HMPAO retentionD O Slosman
Division of Nuclear Medicine, Geneva University Hospital, Geneva, Switzerland
Brain Res Brain Res Rev 36:230-40. 2001..In particular, these observations suggest a key role of astrocytes in the signal detected with the imaging procedure, which is altered in the Alzheimer's cohort subjected to the verbal fluency activation task...
Astrocyte-specific expression of aquaporin-9 in mouse brain is increased after transient focal cerebral ischemiaJ Badaut
Department of Neurosurgery, Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland
J Cereb Blood Flow Metab 21:477-82. 2001....
