Skeletal Muscle GLUT-4 Gene and Protein Regulation PDF Download
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Author: Yorgos N. Kraniou
Publisher:
ISBN:
Category : Carbohydrates
Languages : en
Pages : 170
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Book Description
Twenty two, young, healthy individuals participated in three studies aiming to assess the effect of various types of physical activity - acute exercise of moderate intensity and duration, varying intensity, short-term training - on skeletal muscle GLUT-4 gene and protein expression as well as on a range of genes encoding the proteins involved in carbohydrate metabolism in skeletal muscle.
Author: Yorgos N. Kraniou
Publisher:
ISBN:
Category : Carbohydrates
Languages : en
Pages : 170
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Book Description
Twenty two, young, healthy individuals participated in three studies aiming to assess the effect of various types of physical activity - acute exercise of moderate intensity and duration, varying intensity, short-term training - on skeletal muscle GLUT-4 gene and protein expression as well as on a range of genes encoding the proteins involved in carbohydrate metabolism in skeletal muscle.
Author: Sean L. McGee
Publisher:
ISBN:
Category : Cell metabolism
Languages : en
Pages : 112
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Book Description
Increasing the number of glucose transporters in muscle ameliorates many of the symptoms associated with type 2 diabetes. This thesis identifies mechanisms regulating glucose transporter gene expression, and therefore glucose transporter number, in human skeletal muscle and provides potential targets for the treatment and management of type 2 diabetes.
Author: Zidong Zhang
Publisher:
ISBN:
Category :
Languages : en
Pages : 324
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Book Description
Abstract: Skeletal muscle is the largest tissue in the human body and the predominant site for insulin stimulated glucose clearance. This process requires the tissue specific expression and movement of glucose transporter isoform 4 (Glut4) from an intracellular vesicular pool to the cell surface. The perturbation of this process at various levels disrupts cellular glucose utilization and causes pathophysiological defects such as type 2 diabetes mellitus. Thus, understanding factors that regulate Glut4 expression and the efficiency of Glut4 translocation in muscle is important. Denervation of rat hindlimb skeletal muscle is a model for insulin resistance, one that is similar to what is seen in humans as a result of spinal cord injury. Glut4 expression in denervated rat muscle is decreased by 80%. Using microarray mRNA profiling, the orphan nuclear receptor, Nur77, was identified as a possible regulator of Glut4 and other genes linked to glucose utilization. This role of Nur77 was confirmed by in vivo knock-down by electroporating Nur77-directed shRNA into skeletal muscle. This resulted in the down regulation of Glut4 and genes involved in glycolysis. Conversely, the ectopic expression of Nur77 in denervated rat muscle "rescued" the expression of Glut4 and the same set of glycolytic genes. These results demonstrate that Nur77 is a mediator of neuromuscular signaling in the control of metabolic genes required for muscle glucose utilization. Following its tissue expression in muscle, Glut4 function requires that it undergoes translocation to the cell surface, a process acutely regulated by exercise (contraction) as well as by insulin. For Glut4 translocation, an in vitro model to study muscle metabolism was generated by ectopic expression of human Glut4 in a skeletal muscle cell line, which allows broader and more facile experimental manipulations than muscle in situ. The signaling pathway for exercise in these cells was mimicked by AMP-dependent kinase (AMPK) activation and studied in comparison and in combination with the insulin signaling pathway. A synergistic effect on Glut4 translocation by activation of AMPK plus insulin stimulation was observed in 3 independent experimental approaches, and was attributed to the extended activation of the insulin signaling pathway by AMPK.
Author: Juleen R Zierath
Publisher: CRC Press
ISBN: 1134485417
Category : Medical
Languages : en
Pages : 659
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Book Description
Diabetes research on models comprising intact animal tissues, cell cultures and isolated pancreatic islets is essential for understanding the pathogenesis of the disease as well as the mechanisms responsible for the chronic complications associated with it. Enormous advances in the understanding of the development of diabetes and its prevention hav
Author: Ashok K. Srivastava
Publisher: Springer Science & Business Media
ISBN: 9780792381136
Category : Science
Languages : en
Pages : 206
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Book Description
In 1996 the 75th anniversary of the discovery of insulin was celebrated at the University of Toronto, the scene of that discovery in 1921. This volume was stimulated by the scientific program which was staged at that time and brought together much of the world's best talent to discuss and analyze the most recent developments in our understanding of pancreatic function, insulin secretion, the interaction of insulin with its target tissues, the mechanism of insulin action at the cellular level, and the defects which underlie both Type I (insulin-dependent diabetes mellitus, IDDM) and Type II (noninsulin-dependent diabetes mellitus, NIDDM) forms of the disease. We have chosen to focus the present volume on work related to insulin action.
Author: Jared P. Jones
Publisher:
ISBN:
Category :
Languages : en
Pages : 278
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Book Description
Author: Gwyn W. Gould
Publisher: Springer Science & Business Media
ISBN: 9780412132919
Category : Science
Languages : en
Pages : 270
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Book Description
This book is a comprehensive text covering the major aspects of the cell and molecular biology of the facilitative glucose transporter family. The text reviews the biology and function of each family member, covers structure-function studies, the regulation of glucose transport by insulin and the consequence of diabetes and insulin resistance, discusses aspects of cellular signalling which control glucose transport, reviews the control of expression and function of GLUT2 in liver and pancreatic beta-cells, and reviews the effects of nutrients on the control of sugar transporter expression.
Author: Erik A. Richter
Publisher: Springer Science & Business Media
ISBN: 1489919287
Category : Science
Languages : en
Pages : 325
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Book Description
The Copenhagen Muscle Research Centre was founded in 1994 with the support of a grant from the Danish National Research Foundation. Among the goals for the Centre is the organization of research symposia, with the aim of bringing a limited number ofintemation ally renowned scientists together to discuss the latest developments and perspectives in their field. The first Copenhagen Muscle Research Centre Conference was held in 1995 and dealt with cardiovascular regulation. The Second Copenhagen Muscle Research Centre Confer ence was held from October 23-26, 1997. The topic of the Symposium was Muscle Metabo lism: Regulation, Exercise, and Diabetes. Seventy invited scientists from all over the world discussed their latest research related to skeletal muscle metabolism. The speakers were asked to expand on their presentations and to write short, but comprehensive, chapters about their given topics. The result is 28 peer-reviewed and edited chapters covering many if not all aspects of muscle energy metabolism related to exercise and diabetes. Emphasis is on regulation of glucose and fatty acid metabolism and the mechanisms regulating their use as fuels for the muscle during exercise. In addition, abnormalities in the regulation of glucose metabolism in the diabetic state are described. However, amino acid and protein metabolism are also thoroughly discussed. We believe that this volume brings an unparralleled, up to date, and comprehensive review of the frontiers in muscle metabolism. Erik A.
Author: Bruce Spiegelman
Publisher: Springer
ISBN: 3319727907
Category : Science
Languages : en
Pages : 108
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Book Description
The world is faced with an epidemic of metabolic diseases such as obesity and type 2 diabetes. This is due to changes in dietary habits and the decrease in physical activity. Exercise is usually part of the prescription, the first line of defense, to prevent or treat metabolic disorders. However, we are still learning how and why exercise provides metabolic benefits in human health. This open access volume focuses on the cellular and molecular pathways that link exercise, muscle biology, hormones and metabolism. This will include novel “myokines” that might act as new therapeutic agents in the future.
Author: Vinood B. Patel
Publisher: Academic Press
ISBN: 0128498749
Category : Technology & Engineering
Languages : en
Pages : 442
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Book Description
Molecular Nutrition: Carbohydrates presents the nutritional and molecular aspects of carbohydrates. As part of the Molecular Nutrition includes sections covering carbohydrate metabolism, carbohydrates in the diet, insulin resistance, dietary sugars, cardiometabolic risk, lipoproteins, low-carbohydrate diets, antioxidants, refined dietary sugars, fats, glucose transporters, glucose sensing, the role of phosphorylation, carbohydrate responsive binding protein, cyclic AMP, peroxisome proliferator-activated receptors, SIRT1, insulinotropic polypeptide (GIP) and GIP receptor (GIPR) genes rRNA and transcription, and more. In addition, the book addresses emerging fields of molecular biology and presents important discoveries relating to diet and nutritional health. Summarizes molecular nutrition in health as related to carbohydrates Addresses emerging fields of molecular biology and presents important discoveries relating to diet and nutritional health Includes key facts, a mini dictionary of terms and summary points
