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Full-Text Articles in Medicine and Health Sciences
Circadian Clock And Lipid Metabolism Disruption In Fatty Liver Disease, Jennifer Valcin
Circadian Clock And Lipid Metabolism Disruption In Fatty Liver Disease, Jennifer Valcin
All ETDs from UAB
Hepatic Steatosis, characterized by the accumulation of triglyceride (TG) in the liver is the first stage of Alcoholic Liver Disease (ALD) and Nonalcoholic Fatty Liver Disease (NAFLD). Many metabolic pathways, including lipid metabolism, are regulated by the molecular circadian clock. Importantly, alcohol consumption and obesity induce circadian clock disruption, a risk factor for many diseases, including liver disease. In our first study, we investigated the combined effect of clock disruption and alcohol feeding on liver pathology, and diurnal rhythms in the liver molecular clock and lipid metabolism. Male liver-specific Bmal1 knockout (LKO) mice and control littermates were fed a control …
Downstream Pathways Of Glucagon Receptor Agonism In Obesity, Shelly Nason
Downstream Pathways Of Glucagon Receptor Agonism In Obesity, Shelly Nason
All ETDs from UAB
Obesity is highly prevalent and strategies to improve weight loss maintenance are critical for healthcare. Behavioral interventions are effective but require major lifestyle changes that are often difficult to maintain long-term. Therefore, modifying energy balance with pharmacotherapy is a strategy to combine with lifestyle modifications for sustained weight loss. Glucagon, a hormone involved in maintaining glucose homeostasis, also regulates energy expenditure, food intake, and lipid metabolism. As such, glucagon-based therapies have gained attention as an attractive clinical target. Glucagon Receptor (GCGR) mono-agonism induces glucose intolerance; therefore, dissecting the mechanisms by which GCGR signaling mediates energy balance are clinically relevant to …
Understanding The Impact Of Diet And Obesity On Anti-Tumor Immunity And Therapeutic Efficacy In Kidney Cancer, Rachael Miller Orlandella
Understanding The Impact Of Diet And Obesity On Anti-Tumor Immunity And Therapeutic Efficacy In Kidney Cancer, Rachael Miller Orlandella
All ETDs from UAB
Obesity is regarded as a major risk factor for developing renal cell carcinoma (RCC). Advanced-stage RCC exhibits chemotherapeutic resistance, but is responsive to immunotherapies such as the immune checkpoint inhibitor anti-programmed cell death-1 (anti-PD-1). Despite some clinical successes, response rates remain low for anti-PD-1 monotherapy (20-30%). Preclinical evaluations of immunotherapeutic strategies typically use lean mice and do not account for patient comorbidities. This may explain the underwhelming success rates following clinical translation of new cancer treatments. Recent studies found that obesity was associated with favorable outcomes and responses to immunotherapy in melanoma. However, the effects of obesity on anti-tumor immunity …
Obesity Weighs Down Memory: Emerging Insights Into The Epigentic Basis Of Obesity-Induced Memory Impairment In Adult Mice, Frankie Darryn Heyward
Obesity Weighs Down Memory: Emerging Insights Into The Epigentic Basis Of Obesity-Induced Memory Impairment In Adult Mice, Frankie Darryn Heyward
All ETDs from UAB
A preponderance of evidence has established that obesity contributes to memory impairments in mid-age adults. Empirical evidence has revealed that diet-induced obesity contributes to memory impairments in adult rodents. Precisely how obesity disrupts memory remains an open question. Bourgeoning data indicate that molecular epigenetic mechanisms mediate the changes in gene transcription that are necessary for hippocampus-dependent memory consolidation. Epigenetic mechanisms, such as DNA methylation, stably regulate gene expression without affecting the DNA sequence. Moreover, DNA methylation of memory-related genes with in the hippocampus is indispensible for memory formation. There is recent evidence of obesity-induced aberrantions in DNA methylation both peripherally …
Mitochondrial Genetics Modify Body Composition, Metabolic Efficiency And Myocardial Metabolism, Kimberly Joanne Dunham
Mitochondrial Genetics Modify Body Composition, Metabolic Efficiency And Myocardial Metabolism, Kimberly Joanne Dunham
All ETDs from UAB
Obesity and cardiometabolic pathologies have reached epidemic levels worldwide over the last 30 years. Currently, the majority of research investigating possible genetic causes of obesity is focused on nuclear DNA (nDNA). While this has lead to the development of numerous animal models, it is apparent the etiology of obesity is more complex than single gene mutations. Recently it has also been suggested that mitochondrial DNA (mtDNA) mutations sustained during evolution as a consequence of our prehistoric environment may influence individual propensity and risk of disease. Contemporary human populations are no longer faced with the challenges of our ancestors such as …
Using Mouse Models To Investigate Ciliopathies, Raymond Carl Pasek
Using Mouse Models To Investigate Ciliopathies, Raymond Carl Pasek
All ETDs from UAB
Cilia and flagella are microtubule based organelles found on nearly every cell type in the mammalian body. Flagella have an essential role in sperm locomotion and reproduction, while motile cilia have a known role in fluid movement in the brain, lungs, and portions of the female reproductive tract. While the role of most primary cilia remained unknown for decades, they are now recognized as being essential to mammalian development, renal homeostasis, and satiety, just to name a few. Because of their widespread presence and importance, dysfunction of cilia and flagella can lead to a variety of human diseases, collectively referred …
Pediatric Obesity And Traumatic Lower Extremity Long Bone Fracture Outcomes, Ian Charles Backstrom
Pediatric Obesity And Traumatic Lower Extremity Long Bone Fracture Outcomes, Ian Charles Backstrom
All ETDs from UAB
Background: Pediatric obesity is associated with lower extremity injuries and poor outcomes after blunt trauma. Our aim was to determine if obese pediatric patients with femur and tibia fractures have more severe injury patterns and worse outcomes compared to non-obese patients. Methods: We performed a retrospective cohort study of obese and non-obese pediatric patients with femur or tibia fractures treated at two Level-1 trauma centers from 2004-2010. Patients weighing ≥ 95th percentile for age and gender were classified as obese. Patients were compared regarding demographics, Injury Severity Score (ISS), intra-abdominal, and orthopedic injuries. Outcomes included fracture treatment, orthopedic complications, ICU …