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  • 1
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    Insulin resistance and a diabetes mellitus-like syndrome in mice lacking the protein kinase Akt2 (PKB beta) (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-06-02
    Description: Glucose homeostasis depends on insulin responsiveness in target tissues, most importantly, muscle and liver. The critical initial steps in insulin action include phosphorylation of scaffolding proteins and activation of phosphatidylinositol 3-kinase. These early events lead to activation of the serine-threonine protein kinase Akt, also known as protein kinase B. We show that mice deficient in Akt2 are impaired in the ability of insulin to lower blood glucose because of defects in the action of the hormone on liver and skeletal muscle. These data establish Akt2 as an essential gene in the maintenance of normal glucose homeostasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cho, H -- Mu, J -- Kim, J K -- Thorvaldsen, J L -- Chu, Q -- Crenshaw, E B 3rd -- Kaestner, K H -- Bartolomei, M S -- Shulman, G I -- Birnbaum, M J -- GM07229/GM/NIGMS NIH HHS/ -- P30 19525/PHS HHS/ -- P30 DK50306/DK/NIDDK NIH HHS/ -- R01 DK040936/DK/NIDDK NIH HHS/ -- R01 DK56886/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2001 Jun 1;292(5522):1728-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11387480" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Glucose/metabolism ; Deoxyglucose/metabolism ; Diabetes Mellitus, Type 2/*metabolism ; Female ; Gene Targeting ; Glucose/*metabolism ; Glucose Clamp Technique ; Glucose Tolerance Test ; Homeostasis ; Insulin/administration & dosage/blood/*metabolism ; *Insulin Resistance/genetics/physiology ; Islets of Langerhans/cytology/physiology ; Liver/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Muscle, Skeletal/enzymology/metabolism ; *Protein-Serine-Threonine Kinases ; Proto-Oncogene Proteins/*genetics/*metabolism ; Proto-Oncogene Proteins c-akt ; Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Signal transduction. Sweet conundrum (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-03-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Birnbaum, Morris J -- New York, N.Y. -- Science. 2008 Mar 7;319(5868):1348-9. doi: 10.1126/science.1155915.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Diabetes, Obesity and Metabolism, University of Pennsylvania, Philadelphia, PA 19104, USA. birnbaum@mail.med.upenn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18323441" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Glucose/*metabolism ; Cell Nucleus/metabolism ; Cytoplasm/metabolism ; Diabetes Mellitus/metabolism ; Enzyme Activation ; Gene Expression Regulation ; Glucose/*metabolism ; Glucose-6-Phosphatase/genetics/metabolism ; Glycosylation ; Humans ; Insulin/metabolism ; Insulin Resistance ; Liver/*metabolism ; Mice ; Phosphorylation ; *Signal Transduction ; Trans-Activators/*metabolism ; Transcription Factors ; Transcription, Genetic ; Uridine Diphosphate N-Acetylglucosamine/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Regulation of neuronal survival by the serine-threonine protein kinase Akt (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-31
    Description: A signaling pathway was delineated by which insulin-like growth factor 1 (IGF-1) promotes the survival of cerebellar neurons. IGF-1 activation of phosphoinositide 3-kinase (PI3-K) triggered the activation of two protein kinases, the serine-threonine kinase Akt and the p70 ribosomal protein S6 kinase (p70(S6K)). Experiments with pharmacological inhibitors, as well as expression of wild-type and dominant-inhibitory forms of Akt, demonstrated that Akt but not p70(S6K) mediates PI3-K-dependent survival. These findings suggest that in the developing nervous system, Akt is a critical mediator of growth factor-induced neuronal survival.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dudek, H -- Datta, S R -- Franke, T F -- Birnbaum, M J -- Yao, R -- Cooper, G M -- Segal, R A -- Kaplan, D R -- Greenberg, M E -- DK39519/DK/NIDDK NIH HHS/ -- R01 CA18689/CA/NCI NIH HHS/ -- R01 CA43855/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Jan 31;275(5300):661-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Children's Hospital, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9005851" target="_blank"〉PubMed〈/a〉
    Keywords: Androstadienes/pharmacology ; Animals ; *Apoptosis/drug effects ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Cell Survival/drug effects ; Cells, Cultured ; Cerebellum/cytology ; Chromones/pharmacology ; Enzyme Activation ; Enzyme Inhibitors/pharmacology ; Insulin/pharmacology ; Insulin-Like Growth Factor I/*pharmacology ; Morpholines/pharmacology ; Neurons/*cytology/drug effects/enzymology ; Phosphatidylinositol 3-Kinases ; Phosphotransferases (Alcohol Group Acceptor)/metabolism ; Protein-Serine-Threonine Kinases/*metabolism ; Proto-Oncogene Proteins/chemistry/genetics/*metabolism ; Proto-Oncogene Proteins c-akt ; Rats ; Ribosomal Protein S6 Kinases ; *Signal Transduction ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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