Browsing Dissertations by Subject "Skeletal muscle"
Now showing items 1-7 of 7
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THE EFFECT OF CONTRACTILE ACTIVITY AND SUBSTRATE CHALLENGES ON METABOLIC FLEXIBILITY IN HUMAN PRIMARY MYOTUBES
(East Carolina University, 2013)The skeletal muscle of severely obese individuals (BMI > 40 kg/m²) is characterized by a depressed ability to oxidize fatty acids and a failure to upregulate fatty acid oxidation (FAO) in response to increased lipid ... -
ESTABLISHMENT OF THE PYRUVATE DEHYDROGENASE COMPLEX AS A CENTRAL REGULATOR OF MITOCHONDRIAL REDOX WITHIN SKELETAL MUSCLE
(East Carolina University, 2013)Once regarded as "byproducts" of aerobic metabolism, the production of superoxide/H₂O₂ is now understood to be a highly specialized and extensively regulated process responsible for exerting control over a vast number of ... -
Metabolic Inflexibility in Response to Lipid Oversupply with Obesity: Epigenetic Modifications Play a Role
(East Carolina University, 2013)The ability to adjust substrate oxidation according to nutrient availability has been termed `metabolic flexibility' and is a critical factor in overall metabolic health. In respect to fatty acid oxidation (FAO) metabolic ... -
Metabolic Inflexibility in Skeletal Muscle With Obesity
(East Carolina University, 2009)The skeletal muscle of obese individuals has a reduced capacity to oxidize lipids. The hypothesis to be tested in this dissertation is that the ability to regulate lipid oxidation in response to lipid exposure is impaired ... -
Modulation of IKKβ with AMPK Improves Insulin Sensitivity in Skeletal Muscle
(East Carolina University, 2008-11)Activation of the insulin receptor substrate (IRS)-1 is necessary for proper transduction of the insulin signal. IRS-1 serine312(human)/307(rodent) phosphorylation, however, results in disruption of this signal and subsequent ... -
NOVEL MECHANISMS GOVERNING SKELETAL MUSCLE MITOCHONDRIAL BIOENERGETICS : OXPHOS EFFICIENCY AND cAMP/PKA SIGNALING
(East Carolina University, 2014)Understanding the regulation of cellular metabolism is paramount to treating the growing prevalence of metabolic disease worldwide. In cellular metabolism, mitochondrial oxidative phosphorylation (OXPHOS) plays a key role ... -
SKELETAL MUSCLE METABOLIC FLEXIBILITY IMPAIRMENTS IN RESPONSE TO LIPID WITH OBESITY : EFFECT OF EXERCISE TRAINING
(East Carolina University, 2012)Obese individuals exhibit skeletal muscle metabolic inflexibility by failing to increase fat oxidation and genes linked with mitochondrial biogenesis in response to a high-fat diet (HFD) and lipid incubation in cell culture. ...