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  1. Buch: AMPK

    Neumann, Dietbert / Viollet, Benoit

    methods and protocols

    (Methods in molecular biology ; 1732 ; Springer protocols)

    2018  

    Verfasserangabe edited by Dietbert Neumann, Benoit Viollet
    Serientitel Methods in molecular biology ; 1732
    Springer protocols
    Überordnung
    Schlagwörter bacterial expression ; baculoviral ; upstream kinase ; protein crystallisation ; pharmacological activators
    Thema/Rubrik (Code) 570
    Sprache Englisch
    Umfang 520 Seiten, Illustrationen, 25.4 cm x 17.8 cm
    Verlag Humana Press
    Erscheinungsort New York, NY
    Erscheinungsland Vereinigte Staaten
    Dokumenttyp Buch
    HBZ-ID HT019605521
    ISBN 978-1-4939-7597-6 ; 1-4939-7597-8 ; 9781493975983 ; 1493975986
    Datenquelle Katalog ZB MED Medizin, Gesundheit

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  2. Buch ; Online: Metformin: Beyond Diabetes

    Bost, Frederic / Rena, Graham / Viollet, Benoit

    2020  

    Schlagwörter Medicine ; Endocrinology ; metformin ; cancer ; diabetes ; neurodegenerative disease ; mitochondria ; gut microbiota ; PCOS (polycystic ovarian syndrome)
    Umfang 1 electronic resource (134 pages)
    Verlag Frontiers Media SA
    Dokumenttyp Buch ; Online
    Anmerkung English ; Open Access
    HBZ-ID HT021230344
    ISBN 9782889634071 ; 2889634078
    Datenquelle ZB MED Katalog Medizin, Gesundheit, Ernährung, Umwelt, Agrar

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  3. Buch ; Online: AMP-Activated Protein Kinase Signalling

    Viollet, Benoit / Neumann, Dietbert

    2019  

    Abstract: Starting from a kinase of interest, AMP-activated protein kinase (AMPK) has gone far beyond an average biomolecule. Being expressed in all mammalian cell types and probably having a counterpart in every eukaryotic cell, AMPK has attracted interest in ... ...

    Abstract Starting from a kinase of interest, AMP-activated protein kinase (AMPK) has gone far beyond an average biomolecule. Being expressed in all mammalian cell types and probably having a counterpart in every eukaryotic cell, AMPK has attracted interest in virtually all areas of biological research. Structural and biophysical insights have greatly contributed to a molecular understanding of this kinase. From good old protein biochemistry to modern approaches, such as systems biology and advanced microscopy, all disciplines have provided important information. Thus, multiple links to cellular events and subcellular localizations have been established. Moreover, the crucial involvement of AMPK in human health and disease has been evidenced. AMPK accordingly has moved from an interesting enzyme to a pharmacological target. However, despite our extensive current knowledge about AMPK, the growing community is busier than ever. This book provides a snapshot of recent and current AMPK research with an emphasis on work providing molecular insight, including but not limited to novel physiological and pathological functions, or regulatory mechanisms. Up-to-date reviews and research articles are included
    Schlagwörter Science (General) ; Biology (General)
    Umfang 1 electronic resource (452 p.)
    Verlag MDPI - Multidisciplinary Digital Publishing Institute
    Dokumenttyp Buch ; Online
    Anmerkung eng ; Open Access
    HBZ-ID HT020102470
    ISBN 9783038976622 ; 3038976628
    Datenquelle ZB MED Katalog Medizin, Gesundheit, Ernährung, Umwelt, Agrar

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  4. Buch: AMP-activated protein kinase

    Cordero, Mario D. / Viollet, Benoit

    (Experentia Supplementum ; 107)

    2016  

    Verfasserangabe Mario D. Cordero, Benoit Viollet, editors
    Serientitel Experentia Supplementum ; 107
    Experientia
    Überordnung Experientia
    Sprache Englisch
    Umfang X, 523 Seiten, Illustrationen
    Verlag Springer
    Erscheinungsort Basel
    Erscheinungsland Schweiz
    Dokumenttyp Buch
    HBZ-ID HT019184728
    ISBN 978-3-319-43587-9 ; 9783319435893 ; 3-319-43587-6 ; 3319435892
    Datenquelle Katalog ZB MED Medizin, Gesundheit

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  5. Artikel ; Online: Metformin: update on mechanisms of action and repurposing potential.

    Foretz, Marc / Guigas, Bruno / Viollet, Benoit

    Nature reviews. Endocrinology

    2023  Band 19, Heft 8, Seite(n) 460–476

    Abstract: Currently, metformin is the first-line medication to treat type 2 diabetes mellitus (T2DM) in most guidelines and is used daily by >200 million patients. Surprisingly, the mechanisms underlying its therapeutic action are complex and are still not fully ... ...

    Abstract Currently, metformin is the first-line medication to treat type 2 diabetes mellitus (T2DM) in most guidelines and is used daily by >200 million patients. Surprisingly, the mechanisms underlying its therapeutic action are complex and are still not fully understood. Early evidence highlighted the liver as the major organ involved in the effect of metformin on reducing blood levels of glucose. However, increasing evidence points towards other sites of action that might also have an important role, including the gastrointestinal tract, the gut microbial communities and the tissue-resident immune cells. At the molecular level, it seems that the mechanisms of action vary depending on the dose of metformin used and duration of treatment. Initial studies have shown that metformin targets hepatic mitochondria; however, the identification of a novel target at low concentrations of metformin at the lysosome surface might reveal a new mechanism of action. Based on the efficacy and safety records in T2DM, attention has been given to the repurposing of metformin as part of adjunct therapy for the treatment of cancer, age-related diseases, inflammatory diseases and COVID-19. In this Review, we highlight the latest advances in our understanding of the mechanisms of action of metformin and discuss potential emerging novel therapeutic uses.
    Mesh-Begriff(e) Humans ; Metformin/therapeutic use ; Metformin/pharmacology ; Diabetes Mellitus, Type 2/drug therapy ; Hypoglycemic Agents/pharmacology ; Hypoglycemic Agents/therapeutic use ; COVID-19 ; Glucose
    Chemische Substanzen Metformin (9100L32L2N) ; Hypoglycemic Agents ; Glucose (IY9XDZ35W2)
    Sprache Englisch
    Erscheinungsdatum 2023-05-02
    Erscheinungsland England
    Dokumenttyp Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 2489381-X
    ISSN 1759-5037 ; 1759-5029
    ISSN (online) 1759-5037
    ISSN 1759-5029
    DOI 10.1038/s41574-023-00833-4
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Buch ; Online: The Energy Sensor AMPK

    Viollet, Benoit

    Adaptations to Exercise, Nutritional and Hormonal Signals

    2019  

    Abstract: To sustain metabolism, intracellular ATP concentration must be regulated within an appropriate range. This coordination is achieved through the function of the AMP-activated protein kinase (AMPK), a cellular "fuel gauge" that is expressed in essentially ... ...

    Abstract To sustain metabolism, intracellular ATP concentration must be regulated within an appropriate range. This coordination is achieved through the function of the AMP-activated protein kinase (AMPK), a cellular "fuel gauge" that is expressed in essentially all eukaryotic cells as heterotrimeric complexes containing catalytic $\alpha$ subunits and regulatory $\beta$ and $\gamma$ subunits. When cellular energy status has been compromised, AMPK is activated by increases in AMP:ATP or ADP:ATP ratios and acts to restore energy homeostasis by stimulating energy production via catabolic pathways while decreasing non-essential energy-consuming pathways. Although the primary function of AMPK is to regulate energy homeostasis at a cell-autonomous level, in multicellular organisms, the AMPK system has evolved to interact with hormones to regulate energy intake and expenditure at the whole body level. Thus, AMPK functions as a signaling hub, coordinating anabolic and catabolic pathways to balance nutrient supply with energy demand at both the cellular and whole-body levels. AMPK is activated by various metabolic stresses such as ischemia or hypoxia or glucose deprivation and has both acute and long-term effects on metabolic pathways and key cellular functions. In addition, AMPK appears to be a major sensor of energy demand in exercising muscle and acts both as a multitask gatekeeper and an energy regulator in skeletal muscle. Acute activation of AMPK has been shown to promote glucose transport and fatty acid oxidation while suppressing glycogen synthase activity and protein synthesis. Chronic activation of AMPK induces a shift in muscle fiber type composition, reduces markers of muscle degeneration and enhances muscle oxidative capacity potentially by stimulating mitochondrial biogenesis. Furthermore, recent evidence demonstrates that AMPK may not only regulate metabolism during exercise but also in the recovery phase. AMPK acts as a molecular transducer between exercise and insulin signaling and is necessary for the ability of prior contraction/exercise to increase muscle insulin sensitivity. Based on these observations, drugs that activate AMPK might be expected to be useful in the treatment of metabolic disorders and insulin resistance in various conditions.
    Schlagwörter Quantitative Biology - Tissues and Organs
    Thema/Rubrik (Code) 571
    Erscheinungsdatum 2019-11-06
    Erscheinungsland us
    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  7. Artikel: Editorial: AMPK and mTOR Beyond Signaling: Emerging Roles in Transcriptional Regulation.

    Audet-Walsh, Étienne / Vernier, Mathieu / Viollet, Benoit

    Frontiers in cell and developmental biology

    2021  Band 8, Seite(n) 641552

    Sprache Englisch
    Erscheinungsdatum 2021-01-15
    Erscheinungsland Switzerland
    Dokumenttyp Editorial
    ZDB-ID 2737824-X
    ISSN 2296-634X
    ISSN 2296-634X
    DOI 10.3389/fcell.2020.641552
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  8. Artikel ; Online: AMP-Activated Protein Kinase Signalling.

    Neumann, Dietbert / Viollet, Benoit

    International journal of molecular sciences

    2019  Band 20, Heft 3

    Abstract: AMP-activated protein kinase (AMPK) regulates energy homeostasis in eukaryotic cells and organisms [ ... ]. ...

    Abstract AMP-activated protein kinase (AMPK) regulates energy homeostasis in eukaryotic cells and organisms [...].
    Mesh-Begriff(e) AMP-Activated Protein Kinases/metabolism ; Animals ; Energy Metabolism/physiology ; Homeostasis/physiology ; Humans ; Signal Transduction/physiology
    Chemische Substanzen AMP-Activated Protein Kinases (EC 2.7.11.31)
    Sprache Englisch
    Erscheinungsdatum 2019-02-12
    Erscheinungsland Switzerland
    Dokumenttyp Editorial
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms20030766
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  9. Artikel ; Online: Activation of AMPK for a Break in Hepatic Lipid Accumulation and Circulating Cholesterol.

    Foretz, Marc / Viollet, Benoit

    EBioMedicine

    2018  Band 31, Seite(n) 15–16

    Mesh-Begriff(e) AMP-Activated Protein Kinases ; Animals ; Cholesterol ; Indoles ; Liver ; Non-alcoholic Fatty Liver Disease ; Primates ; Rodentia
    Chemische Substanzen Indoles ; PF-6409577 ; Cholesterol (97C5T2UQ7J) ; AMP-Activated Protein Kinases (EC 2.7.11.31)
    Sprache Englisch
    Erscheinungsdatum 2018-05-10
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article ; Comment
    ZDB-ID 2851331-9
    ISSN 2352-3964
    ISSN (online) 2352-3964
    DOI 10.1016/j.ebiom.2018.05.009
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Artikel ; Online: Measurement of AMPK-Induced Inhibition of Lipid Synthesis Flux in Cultured Cells.

    Foretz, Marc / Viollet, Benoit

    Methods in molecular biology (Clifton, N.J.)

    2018  Band 1732, Seite(n) 363–371

    Abstract: AMP-activated protein kinase (AMPK) is a master regulator of multiple cellular metabolic pathways, including lipid metabolism. Some of the well-known substrates of AMPK are acetyl-CoA carboxylase (ACC) and 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) ... ...

    Abstract AMP-activated protein kinase (AMPK) is a master regulator of multiple cellular metabolic pathways, including lipid metabolism. Some of the well-known substrates of AMPK are acetyl-CoA carboxylase (ACC) and 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase, regulatory enzymes of fatty acid and cholesterol synthesis, respectively. The discovery that both of them are inactivated by AMPK suggested the therapeutic potential of AMPK activation in the treatment of metabolic diseases associated with lipid disorders, such as nonalcoholic fatty liver disease (NAFLD). Here we describe a method to measure lipid synthesis flux in intact cells from the saponifiable (including fatty acids) and non-saponifiable (including sterols) fractions of lipid extracts.
    Mesh-Begriff(e) AMP-Activated Protein Kinases/metabolism ; Acetyl-CoA Carboxylase/metabolism ; Animals ; Cell Line ; Cells, Cultured ; Hepatocytes ; Hydroxymethylglutaryl CoA Reductases/metabolism ; Lipids/analysis ; Lipogenesis ; Mice ; Primary Cell Culture
    Chemische Substanzen Lipids ; Hydroxymethylglutaryl CoA Reductases (EC 1.1.1.-) ; AMP-Activated Protein Kinases (EC 2.7.11.31) ; Acetyl-CoA Carboxylase (EC 6.4.1.2)
    Sprache Englisch
    Erscheinungsdatum 2018-02-22
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1940-6029
    ISSN (online) 1940-6029
    DOI 10.1007/978-1-4939-7598-3_23
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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