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Molecular, Genetic, and Biochemical Nutrition Commons™
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Articles 1 - 5 of 5
Full-Text Articles in Molecular, Genetic, and Biochemical Nutrition
Biology Of Exosomes And Their Microrna Cargos In Human And Bovine Milk, Amy Lynn Leiferman
Biology Of Exosomes And Their Microrna Cargos In Human And Bovine Milk, Amy Lynn Leiferman
College of Education and Human Sciences: Dissertations, Theses, and Student Research
Exosomes are small, cargo-containing vesicles secreted by cells to facilitate intercellular communication. Of exosome cargos, microRNAs are especially interesting because of their involvement in gene regulation. Recently, our lab has shown that exosomes and their microRNA cargo are absorbed through the diet and elicit effects exogenously. Human and animal milk contain exosomes, which may have implications in infant and adult nutrition. There is evidence that bovine milk exosomes enhance growth of murine C2C12 myotube cell cultures, but whether this translates to muscle in vivo is unknown. The USDA National Nutrient Database for Standard Reference is lacking up-to-date information about human …
Delta Tocotrienol Attenuates Nlrp3 Inflammasome Activation Via Inhibition Of Nf-Κb Priming And Reactive Oxygen Species Generation, Teresa Buckner
Delta Tocotrienol Attenuates Nlrp3 Inflammasome Activation Via Inhibition Of Nf-Κb Priming And Reactive Oxygen Species Generation, Teresa Buckner
College of Education and Human Sciences: Dissertations, Theses, and Student Research
Chronic, low-grade inflammation during obesity is associated with the development of metabolic dysfunction. The NLRP3 inflammasome is assembled in response to cellular stressors and leads to cytotoxic cytokines IL-1β and IL-18 production, which implicates the NLRP3 inflammasome in inflammatory conditions, including type 2 diabetes. Tocotrienols are antioxidant and anti-inflammatory forms of vitamin E. Delta-tocotrienol (dT3) displays NF-κB inhibitory and anti-oxidant abilities, and is easily isolated from the Annatto plant. My primary aim was to determine whether dT3 inhibits NLRP3 inflammasome activation and to compare the extent to which dT3 inhibits NLRP3 inflammasome with other tocotrienol forms, i.e. alpha-tocotrienol (aT3) and …
Mechanisms By Which Dietary Ellagic Acid Attenuates Obesity And Obesity-Mediated Metabolic Complications, Inhae Kang
Mechanisms By Which Dietary Ellagic Acid Attenuates Obesity And Obesity-Mediated Metabolic Complications, Inhae Kang
College of Education and Human Sciences: Dissertations, Theses, and Student Research
Ellagic acid (EA) is a polyphenol found in various fruits and plants, such as berries, pomegranates, muscadine grapes, nuts and bark of oak tree. EA has been known to exhibit anti-inflammatory and anti-proliferative effects in various types of cancer. However, little is known about the effects of EA on obesity. Herein, 1) the lipid-lowering role of EA was identified in primary human adipose stem cells (hASCs) and human hepatoma Huh7 cells; 2) the molecular mechanisms by which EA attenuates adipogenesis by epigenetic modification were identified; 3) the effects of EA on high fat and high sucrose-mediated obesity was …
From Histone Modification To Gene Repression: Epigenetic Regulation By Holocarboxylase Synthetase-Containing Repression Complex And Fad-Dependent Lysine Specific Demethylase, Dandan Liu
College of Education and Human Sciences: Dissertations, Theses, and Student Research
Histones undergo different types of post-translational modifications that have been linked to a variety of biological processes and disease states. Histone acetylation and methylation are well characterized modifications with respect to regulation of chromatin structure and transcription. Histone acetylation, regulated by histone acetyltransferases (HATs) and histone deacetylases (HDACs), is linked with gene activation. Here we introduce a novel paradigm suggesting that holocarboxylase synthetase (HLCS), the sole biotin protein ligase in the human genome, recruits nuclear receptor corepressor (N-CoR) and HDAC1 to chromatin, thereby contributing toward the removal of lysine (K)-9 acetylated histone H3 (H3K9ac) gene activation marks and the repression …
Holocarboxylase Synthetase Represses Long Terminal Repeats Through Epigenetic Synergies Between Biotin And Methyl Donors, And Activates Immune Response By Catalyzing Biotinylation Of Heat Shock Protein 72, Jing Xue
College of Education and Human Sciences: Dissertations, Theses, and Student Research
Holocarboxylase synthetase (HLCS) is the sole human protein biotin ligase in the human proteome. Other than its role as a coenzyme to the five carboxylases in intermediary metabolism, HLCS and biotin are involved in epigenetic gene regulation and immune response. Previously, it was shown that (1) HLCS physically interacts with histone methyl transferase EHMT-1 which creates histone H3 lysine 9 methylation (H3K9me) marks and biotinylates lysine (K) 161 in EHMT-1, thereby strenghtening the HLCS/EHMT-1 interaction; (2) biotin depletion and HLCS knockdown cause a loss of H3K9me marks leading to de-repression of long terminal repeats (LTRs) and chromosomal abnormalities; and (3) …