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PGC-1 alpha AND resveratrol

Jesper Olesen, Stine Ringholm, Maja M Nielsen, Christina T Brandt, Jesper T Pedersen, Jens F Halling, Laurie J Goodyear, Henriette Pilegaard
BACKGROUND/AIM: Age-related metabolic diseases are often associated with low-grade inflammation. The aim of the present study was to investigate the role of the transcriptional co-activator PGC-1α in the potential beneficial effects of exercise training and/or resveratrol in the prevention of age-associated low-grade inflammation. To address this, a long-term voluntary exercise training and resveratrol supplementation study was conducted. EXPERIMENTAL SETUP: Three month old whole body PGC-1α KO and WT mice were randomly assigned to four groups: untrained chow-fed, untrained chow-fed supplemented with resveratrol, chow-fed voluntarily exercise trained and chow-fed supplemented with resveratrol and voluntarily exercise trained...
November 2013: Experimental Gerontology
María José Zarzuelo, Rocío López-Sepúlveda, Manuel Sánchez, Miguel Romero, Manuel Gómez-Guzmán, Zoltan Ungvary, Francisco Pérez-Vizcaíno, Rosario Jiménez, Juan Duarte
Vascular aging is characterized by up-regulation of NADPH oxidase, oxidative stress and endothelial dysfunction. Previous studies demonstrate that the activity of the evolutionarily conserved NAD(+)-dependent deacetylase SIRT1 declines with age and that pharmacological activators of SIRT1 confer significant anti-aging cardiovascular effects. To determine whether dysregulation of SIRT1 promotes NADPH oxidase-dependent production of reactive oxygen species (ROS) and impairs endothelial function we assessed the effects of three structurally different inhibitors of SIRT1 (nicotinamide, sirtinol, EX527) in aorta segments isolated from young Wistar rats...
May 1, 2013: Biochemical Pharmacology
Jean Bastin, Alexandra Lopes-Costa, Fatima Djouadi
Carnitine palmitoyl transferase 2 (CPT2) and very-long-chain Acyl-CoA dehydrogenase (VLCAD) deficiencies are among the most common inborn mitochondrial fatty acid β-oxidation (FAO) disorders. Despite advances in their clinical and molecular characterizations, few therapeutic approaches exist for these diseases. Resveratrol (RSV) is a natural polyphenol extensively studied for its potential health benefits. Indeed, it is presently thought that RSV could delay the onset of some cancers, and have protective effects against common aging disorders such as type II diabetes, cardiovascular or neurodegenerative diseases...
May 15, 2011: Human Molecular Genetics
Sara Fröjdö, Christine Durand, Laurent Molin, Andrew L Carey, Assam El-Osta, Bronwyn A Kingwell, Mark A Febbraio, Florence Solari, Hubert Vidal, Luciano Pirola
The protein deacetylase SIRT1, and its activator resveratrol, exert beneficial effects on glucose metabolism. Different SIRT1 targets have been identified, including PTP1B, AMPK, FOXO, PGC-1α and IRS2. The latter may underscore a tight link between SIRT1 and insulin signaling components. However, whether SIRT1 has a direct effect on insulin resistance and whether resveratrol acts directly or indirectly in this context is still a matter of controversy and this question has not been addressed in muscle cells...
March 30, 2011: Molecular and Cellular Endocrinology
Ana Planavila, Roser Iglesias, Marta Giralt, Francesc Villarroya
AIMS: A complex set of metabolic and inflammatory processes are involved in the development of cardiac hypertrophy. Accumulating evidence indicates an important role for Sirt1 in cardiac function, whereas peroxisome proliferator-activated receptor-α (PPARα) is a master controller of cardiac lipid metabolism and plays a protective role on cardiac hypertrophy. The objective of the present study was to explore the relationships between Sirt1 and PPARα in the control of hypertrophy, metabolism, and inflammation processes in the heart...
May 1, 2011: Cardiovascular Research
Mercè Pallàs, Gemma Casadesús, Mark A Smith, Ana Coto-Montes, Carme Pelegri, Jordi Vilaplana, Antoni Camins
One of the current problems in medicine research is the development of safe drugs for the treatment of neurological disorders. Furthermore, there is a close relationship between the process of aging and the appearance of neurological disorders, particularly Parkinson's disease and Alzheimer's disease. Therefore, an ideal compound would have two characteristics: neuroprotective action and an anti-aging effect. The natural compound resveratrol is a suitable candidate for this purpose due to its low toxicity and antioxidant properties...
February 2009: Current Neurovascular Research
Joanne M Ajmo, Xiaomei Liang, Christopher Q Rogers, Brandi Pennock, Min You
Alcoholic fatty liver is associated with inhibition of sirtuin 1 (SIRT1) and AMP-activated kinase (AMPK), two critical signaling molecules regulating the pathways of hepatic lipid metabolism in animals. Resveratrol, a dietary polyphenol, has been identified as a potent activator for both SIRT1 and AMPK. In the present study, we have carried out in vivo animal experiments that test the ability of resveratrol to reverse the inhibitory effects of chronic ethanol feeding on hepatic SIRT1-AMPK signaling system and to prevent the development of alcoholic liver steatosis...
October 2008: American Journal of Physiology. Gastrointestinal and Liver Physiology
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