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  • 1
    Publication Date: 2010-07-24
    Description: Obesity induced in mice by high-fat feeding activates the protein kinase Cdk5 (cyclin-dependent kinase 5) in adipose tissues. This results in phosphorylation of the nuclear receptor PPARgamma (peroxisome proliferator-activated receptor gamma), a dominant regulator of adipogenesis and fat cell gene expression, at serine 273. This modification of PPARgamma does not alter its adipogenic capacity, but leads to dysregulation of a large number of genes whose expression is altered in obesity, including a reduction in the expression of the insulin-sensitizing adipokine, adiponectin. The phosphorylation of PPARgamma by Cdk5 is blocked by anti-diabetic PPARgamma ligands, such as rosiglitazone and MRL24. This inhibition works both in vivo and in vitro, and is completely independent of classical receptor transcriptional agonism. Similarly, inhibition of PPARgamma phosphorylation in obese patients by rosiglitazone is very tightly associated with the anti-diabetic effects of this drug. All these findings strongly suggest that Cdk5-mediated phosphorylation of PPARgamma may be involved in the pathogenesis of insulin-resistance, and present an opportunity for development of an improved generation of anti-diabetic drugs through PPARgamma.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2987584/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2987584/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Choi, Jang Hyun -- Banks, Alexander S -- Estall, Jennifer L -- Kajimura, Shingo -- Bostrom, Pontus -- Laznik, Dina -- Ruas, Jorge L -- Chalmers, Michael J -- Kamenecka, Theodore M -- Bluher, Matthias -- Griffin, Patrick R -- Spiegelman, Bruce M -- DK087853/DK/NIDDK NIH HHS/ -- DK31405/DK/NIDDK NIH HHS/ -- K99 DK087853/DK/NIDDK NIH HHS/ -- R01 GM084041/GM/NIGMS NIH HHS/ -- R01 GM084041-03/GM/NIGMS NIH HHS/ -- R01-GM084041/GM/NIGMS NIH HHS/ -- R37 DK031405/DK/NIDDK NIH HHS/ -- R37 DK031405-30/DK/NIDDK NIH HHS/ -- S10 RR027270/RR/NCRR NIH HHS/ -- U54 MH084512/MH/NIMH NIH HHS/ -- U54 MH084512-020010/MH/NIMH NIH HHS/ -- U54-MH084512/MH/NIMH NIH HHS/ -- Intramural NIH HHS/ -- England -- Nature. 2010 Jul 22;466(7305):451-6. doi: 10.1038/nature09291.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Biology and Division of Metabolism and Chronic Disease, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20651683" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/drug effects/metabolism/physiopathology ; Amino Acid Sequence ; Animals ; Cell Line ; Cyclin-Dependent Kinase 5/*antagonists & inhibitors/genetics/metabolism ; Diabetes Mellitus, Experimental/complications/*drug therapy/metabolism ; Dietary Fats/pharmacology ; Humans ; Insulin/metabolism ; Ligands ; Mice ; Models, Molecular ; Obesity/chemically induced/complications/*metabolism/physiopathology ; PPAR gamma/agonists/*metabolism ; Phosphorylation/drug effects ; Phosphoserine/metabolism ; Protein Conformation ; Thiazolidinediones/*pharmacology/therapeutic use
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2012-01-13
    Description: Exercise benefits a variety of organ systems in mammals, and some of the best-recognized effects of exercise on muscle are mediated by the transcriptional co-activator PPAR-gamma co-activator-1 alpha (PGC1-alpha). Here we show in mouse that PGC1-alpha expression in muscle stimulates an increase in expression of FNDC5, a membrane protein that is cleaved and secreted as a newly identified hormone, irisin. Irisin acts on white adipose cells in culture and in vivo to stimulate UCP1 expression and a broad program of brown-fat-like development. Irisin is induced with exercise in mice and humans, and mildly increased irisin levels in the blood cause an increase in energy expenditure in mice with no changes in movement or food intake. This results in improvements in obesity and glucose homeostasis. Irisin could be therapeutic for human metabolic disease and other disorders that are improved with exercise.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3522098/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3522098/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bostrom, Pontus -- Wu, Jun -- Jedrychowski, Mark P -- Korde, Anisha -- Ye, Li -- Lo, James C -- Rasbach, Kyle A -- Bostrom, Elisabeth Almer -- Choi, Jang Hyun -- Long, Jonathan Z -- Kajimura, Shingo -- Zingaretti, Maria Cristina -- Vind, Birgitte F -- Tu, Hua -- Cinti, Saverio -- Hojlund, Kurt -- Gygi, Steven P -- Spiegelman, Bruce M -- DK31405/DK/NIDDK NIH HHS/ -- DK54477/DK/NIDDK NIH HHS/ -- K99 DK087853/DK/NIDDK NIH HHS/ -- R01 DK054477/DK/NIDDK NIH HHS/ -- R01 DK061562/DK/NIDDK NIH HHS/ -- R37 DK031405/DK/NIDDK NIH HHS/ -- England -- Nature. 2012 Jan 11;481(7382):463-8. doi: 10.1038/nature10777.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22237023" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/cytology/drug effects/metabolism ; Adipose Tissue, Brown/*cytology/drug effects/metabolism ; Adipose Tissue, White/*cytology/drug effects/metabolism ; Animals ; Cell Respiration/drug effects ; Cells, Cultured ; Culture Media, Conditioned/pharmacology ; Energy Metabolism/drug effects/genetics/physiology ; Exercise/physiology ; Gene Expression Regulation/drug effects/genetics ; Hormones/metabolism/secretion ; Humans ; Insulin Resistance/physiology ; Intracellular Signaling Peptides and Proteins/genetics/metabolism ; Ion Channels/metabolism ; Mice ; Mice, Inbred BALB C ; Mice, Transgenic ; Mitochondrial Proteins/metabolism ; Models, Animal ; Muscle Cells/metabolism ; Obesity/blood/chemically induced/prevention & control ; Physical Conditioning, Animal/physiology ; Plasma/chemistry ; Subcutaneous Fat/cytology/drug effects/metabolism ; *Thermogenesis/drug effects/genetics ; Trans-Activators/deficiency/genetics/*metabolism/secretion ; Transcription Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    International Journal of Non-Linear Mechanics 11 (1976), S. 303-313 
    ISSN: 0020-7462
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
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