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Full-Text Articles in Medicine and Health Sciences
Investigation Of Heterocyclic Amines And N-Acetyltransferase 2 Genetic Polymorphism In The Dysregulation Of Hepatic Energy Homeostasis: A Gene-Environment Approach., Kennedy M Walls
Electronic Theses and Dissertations
Heterocyclic amines (HCAs) are mutagens generated when cooking meat for prolonged periods of time or until well-done. Recent epidemiological studies reported significant associations between dietary HCA exposure and insulin resistance and type II diabetes. However, no previous studies have examined if HCAs, independent of meat consumption, contributes to pathogenesis of insulin resistance or metabolic disease. It is well known that HCAs require hepatic bioactivation by cytochrome P450 1A2 (CYP1A2) and N-acetyltransferase 2 (NAT2). NAT2 expresses a well-defined genetic polymorphism in humans that, depending on the combination of NAT2 alleles, correlate to rapid, intermediate, or slow acetylator phenotypes that exhibit differential …
The Role Of O-Glcnacase During Heart Failure., Sujith Dassanayaka
The Role Of O-Glcnacase During Heart Failure., Sujith Dassanayaka
Electronic Theses and Dissertations
Global augmentation of protein O-GlcNAcylation occurs in response to a myriad of stressors and confers a survival advantage at the cellular level. This protective phenomenon has been demonstrated to mediate cardioprotection through various in vitro and in vivo studies during ischemia-reperfusion, myocardial infarction, and oxidative stress; however, relatively little is known of the regulation of protein O-GlcNAcylation. Protein O-GlcNAcylation is regulated by two antagonistic enzymes, namely, O-GlcNAc transferase (OGT) and O-GlcNAcase (OGA). Ablation of cardiomyocyte OGT, the enzyme that catalyzes the addition of O-GlcNAc to proteins, exacerbates cardiac dysfunction during infarct-induced heart failure (HF). However, little is known of the …
Effects Of Short Term High Fat Diet On Obesity And Perivascular Adipose Structure And Function In Mice : Role Of Aldose Reductase, And Aldehyde Metabolizing Enzyme., Daniel Alan Murphy
Effects Of Short Term High Fat Diet On Obesity And Perivascular Adipose Structure And Function In Mice : Role Of Aldose Reductase, And Aldehyde Metabolizing Enzyme., Daniel Alan Murphy
College of Arts & Sciences Senior Honors Theses
This study was undertaken to determine the effects of high fat diet and aldose reductase deficiency on the structure and function of murine perivascular adipose tissue. Wild type (WT) (C57 bl/6) and aldose reductase knockout (AR-null) mice were aged to 8 or 18 weeks on a normal chow diet then some were switched to a high fat diet for 4 weeks while others remained on the control diet for the same amount of time. Following 4 weeks, mice were euthanized PVAT was analyzed. High fat feeding significantly increased body fat percentage in both age groups of mice and the area …