Concept

Flux (metabolism)

Related publications (253)

Electrochemical Biosensors for On-line Monitoring of Cell Culture Metabolism

Current research in the biotechnological field is hampered by the lack of available technologies dedicated to cell monitoring. While on the one hand physicochemical parameters, such as pH, temperature, cell density and adhesion, can be monitored quite easi ...

EPFL2012

Targeting Sirtuin 1 to Improve Metabolism: All You Need Is NAD(+)?

Johan Auwerx, Carlos Canto Alvarez

Sirtuin 1 (SIRT1) is an evolutionarily conserved NAD(+)-dependent deacetylase that is at the pinnacle of metabolic control, all the way from yeast to humans. SIRT1 senses changes in intracellular NAD(+) levels, which reflect energy level, and uses this inf ...

2012

Muscle or liver-specific Sirt3 deficiency induces hyperacetylation of mitochondrial proteins without affecting global metabolic homeostasis

Johan Auwerx, Kristina Schoonjans, Carlos Canto Alvarez, Pénélope Andreux, Norman Lionel Moullan, Eija Riitta Pirinen, Hiroyasu Yamamoto, Taoufiq Harach, Pablo Jose Fernandez Marcos, Ellen Helena Jeninga

Sirt3 is a mitochondrial sirtuin, predominantly expressed in highly metabolic tissues. Germline ablation of Sirt3 has major metabolic consequences, including increased susceptibility to metabolic damage and oxidative stress after high fat feeding. In order ...

2012

Functionalization of microstructured open-porous bio-ceramic scaffolds with human fetal cells

Sandrine Gerber, Corinne Scaletta, Françoise Borcard

Bone substitute materials allowing trans-scaffold migration and in-scaffold survival of human bone-derived cells are mandatory for development of cell-engineered permanent implants to repair bone defects. In this study, we evaluated the influence on human ...

American Chemical Society2012

Single-Metabolite Bio-Nano-Sensors and System for Remote Monitoring in Animal Models

Giovanni De Micheli, Sandro Carrara, Eric Meurville, Cristina Boero, Andrea Cavallini, Léandre Bolomey

A novel system for remote monitoring of metabolism in animal model is proposed in this paper. The system is obtained by integrating Bio-Nano-Sensors to detect single- metabolites, an electrochemical front-end made with off- the-shelf components, an RF comm ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011

PARP-2 Regulates SIRT1 Expression and Whole-Body Energy Expenditure

Johan Auwerx, Carlos Canto Alvarez, Hiroyasu Yamamoto

SIRT1 is a NAD+-dependent enzyme that affects metabolism by deacetylating key transcriptional regulators of energy expenditure. Here, we tested whether deletion of PARP-2, an alternative NAD+-consuming enzyme, impacts on NAD+ bioavailability and SIRT1 acti ...

Elsevier2011

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

Analysis of Cancer Metabolism by Imaging Hyperpolarized Nuclei: Prospects for Translation to Clinical Research

Arnaud Comment

A major challenge in cancer biology is to monitor and understand cancer metabolism in vivo with the goal of improved diagnosis and perhaps therapy. Because of the complexity of biochemical pathways, tracer methods are required for detecting specific enzyme ...

2011

Novel Concepts for Functional High Resolution Microscopy

Matthias Geissbühler

Functional imaging of biological cells and organs is one of the key techniques that drives new discoveries in life science research and medicine. In this thesis novel concepts for functional imaging at high spatial and temporal resolution are presented. In ...

EPFL2011

Metabolic Networks of Longevity

Johan Auwerx, Richardus Houtkooper

Molecular and cellular networks implicated in aging depend on a multitude of proteins that collectively mount adaptive and contingent metabolic responses to environmental challenges. Here, we discuss the intimate links between metabolic regulation and long ...

2010

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