Search Results - "Witters, Lee A."
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The Ca2+/Calmodulin-dependent Protein Kinase Kinases Are AMP-activated Protein Kinase Kinases
Published in The Journal of biological chemistry (12-08-2005)“…The AMP-activated protein kinase (AMPK) is an important regulator of cellular metabolism in response to metabolic stress and to other regulatory signals. AMPK…”
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Hypothalamic CaMKK2 Contributes to the Regulation of Energy Balance
Published in Cell metabolism (01-05-2008)“…Detailed knowledge of the pathways by which ghrelin and leptin signal to AMPK in hypothalamic neurons and lead to regulation of appetite and glucose…”
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Regulation of mTOR function in response to hypoxia by REDD1 and the TSC1/TSC2 tumor suppressor complex
Published in Genes & development (01-12-2004)“…Mammalian target of rapamycin (mTOR) is a central regulator of protein synthesis whose activity is modulated by a variety of signals. Energy depletion and…”
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The Tumor Suppressor LKB1 Kinase Directly Activates AMP-Activated Kinase and Regulates Apoptosis in Response to Energy Stress
Published in Proceedings of the National Academy of Sciences - PNAS (09-03-2004)“…AMP-activated protein kinase (AMPK) is a highly conserved sensor of cellular energy status found in all eukaryotic cells. AMPK is activated by stimuli that…”
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Regulation of AMP-activated Protein Kinase by Multisite Phosphorylation in Response to Agents That Elevate Cellular cAMP
Published in The Journal of biological chemistry (01-12-2006)“…The AMP-activated protein kinase (AMPK) and cAMP signaling systems are both key regulators of cellular metabolism. In this study, we show that AMPK activity is…”
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AMP‐activated protein kinase counteracts brain‐derived neurotrophic factor‐induced mammalian target of rapamycin complex 1 signaling in neurons
Published in Journal of neurochemistry (01-10-2013)“…Growth factors and nutrients, such as amino acids and glucose, regulate mammalian target of rapamycin complex 1 (mTORC1) signaling and subsequent translational…”
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AMP-activated protein kinase regulates CO2-induced alveolar epithelial dysfunction in rats and human cells by promoting Na,K-ATPase endocytosis
Published in The Journal of clinical investigation (01-02-2008)“…Hypercapnia (elevated CO(2) levels) occurs as a consequence of poor alveolar ventilation and impairs alveolar fluid reabsorption (AFR) by promoting Na,K-ATPase…”
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Effect of Exercise Intensity on Skeletal Muscle AMPK Signaling in Humans
Published in Diabetes (New York, N.Y.) (01-09-2003)“…Effect of Exercise Intensity on Skeletal Muscle AMPK Signaling in Humans Zhi-Ping Chen 1 , Terry J. Stephens 2 , Sid Murthy 1 , Benedict J. Canny 2 , Mark…”
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Silencing the constitutive active transcription factor CREB by the LKB1‐SIK signaling cascade
Published in The FEBS journal (01-06-2006)“…Cyclic AMP responsive element (CRE)‐binding protein (CREB) is known to activate transcription when its Ser133 is phosphorylated. Two independent investigations…”
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10
Malonyl-CoA, fuel sensing, and insulin resistance
Published in The American journal of physiology (01-01-1999)“…Malonyl-CoA is an allosteric inhibitor of carnitine palmitoyltransferase (CPT) I, the enzyme that controls the transfer of long-chain fatty acyl (LCFA)-CoAs…”
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AMP-activated protein kinase activity and glucose uptake in rat skeletal muscle
Published in American journal of physiology: endocrinology and metabolism (01-05-2001)“…The AMP-activated protein kinase (AMPK) has been hypothesized to mediate contraction and 5-aminoimidazole-4-carboxamide 1-beta-D-ribonucleoside (AICAR)-induced…”
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Genetic model for the chronic activation of skeletal muscle AMP-activated protein kinase leads to glycogen accumulation
Published in American journal of physiology: endocrinology and metabolism (01-03-2007)“…The AMP-activated protein kinase (AMPK) is an important metabolic sensor/effector that coordinates many of the changes in mammalian tissues during variations…”
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Dual Mechanisms Regulating AMPK Kinase Action in the Ischemic Heart
Published in Circulation research (18-02-2005)“…AMP-activated protein kinase (AMPK) is emerging as an important signaling protein during myocardial ischemia. AMPK is a heterotrimeric complex containing an α…”
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Physiological modulation of CFTR activity by AMP-activated protein kinase in polarized T84 cells
Published in American Journal of Physiology: Cell Physiology (01-05-2003)“…The cystic fibrosis transmembrane conductance regulator (CFTR) is a cAMP-activated, ATP-gated Cl(-) channel and cellular conductance regulator, but the…”
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Insulin-like growth factor 1 is essential for normal dendritic growth
Published in Journal of neuroscience research (01-07-2003)“…This study evaluated somatic and dendritic growth of neurons in the frontoparietal cortex of Igf1–/– brains. Pyramidal neuron density was increased by ∼25% (P…”
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Regulation of Channel Gating by AMP-activated Protein Kinase Modulates Cystic Fibrosis Transmembrane Conductance Regulator Activity in Lung Submucosal Cells
Published in The Journal of biological chemistry (10-01-2003)“…Cystic fibrosis transmembrane conductance regulator (CFTR) Cl−channel activity is important for fluid and electrolyte transport in many epithelia including the…”
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C75, a Fatty Acid Synthase Inhibitor, Modulates AMP-activated Protein Kinase to Alter Neuronal Energy Metabolism
Published in The Journal of biological chemistry (30-01-2004)“…C75, a synthetic inhibitor of fatty acid synthase (FAS), is hypothesized to alter the metabolism of neurons in the hypothalamus that regulate feeding behavior…”
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Up-regulation of AMP-activated Kinase by Dysfunctional Cystic Fibrosis Transmembrane Conductance Regulator in Cystic Fibrosis Airway Epithelial Cells Mitigates Excessive Inflammation
Published in The Journal of biological chemistry (17-02-2006)“…AMP-activated kinase (AMPK) is a ubiquitous metabolic sensor that inhibits the cystic fibrosis (CF) transmembrane conductance regulator (CFTR). To determine…”
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Expression of FAS within hypothalamic neurons: a model for decreased food intake after C75 treatment
Published in American journal of physiology: endocrinology and metabolism (01-11-2002)“…We previously demonstrated that C75, a specific and potent inhibitor of fatty acid synthase (FAS), reduced food intake and decreased body weight in mice. In…”
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The Role of AMPK and mTOR in Nutrient Sensing in Pancreatic β-Cells
Published in The Journal of biological chemistry (06-04-2007)“…The AMP-activated protein kinase (AMPK) is a central regulator of the energy status of the cell, based on its unique ability to respond directly to…”
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