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Articles 31 - 45 of 45
Full-Text Articles in Entire DC Network
P300 Or Cbp Is Required For Insulin-Stimulated Glucose Uptake In Skeletal Muscle And Adipocytes, Vitor F. Martins, Gretchen A. Meyer, Et Al.
P300 Or Cbp Is Required For Insulin-Stimulated Glucose Uptake In Skeletal Muscle And Adipocytes, Vitor F. Martins, Gretchen A. Meyer, Et Al.
2020-Current year OA Pubs
While current thinking posits that insulin signaling to glucose transporter 4 (GLUT4) exocytic translocation and glucose uptake in skeletal muscle and adipocytes is controlled by phosphorylation-based signaling, many proteins in this pathway are acetylated on lysine residues. However, the importance of acetylation and lysine acetyltransferases to insulin-stimulated glucose uptake is incompletely defined. Here, we demonstrate that combined loss of the acetyltransferases E1A binding protein p300 (p300) and cAMP response element binding protein binding protein (CBP) in mouse skeletal muscle caused a complete loss of insulin-stimulated glucose uptake. Similarly, brief (i.e., 1 hour) pharmacological inhibition of p300/CBP acetyltransferase activity recapitulated this …
Systematic Profiling Of Dnmt3a Variants Reveals Protein Instability Mediated By The Dcaf8 E3 Ubiquitin Ligase Adaptor, Yung-Hsin Huang, Chun-Wei Chen, Venkatasubramaniam Sundaramurthy, Mikołaj Słabicki, Dapeng Hao, Caroline J Watson, Ayala Tovy, Jaime M Reyes, Olga Dakhova, Brielle R Crovetti, Christina Galonska, Minjung Lee, Lorenzo Brunetti, Yubin Zhou, Katrina Tatton-Brown, Yun Huang, Xiaodong Cheng, Alexander Meissner, Peter J M Valk, Lionel Van Maldergem, Mathijs A Sanders, Jamie R Blundell, Wei Li, Benjamin L Ebert, Margaret A Goodell
Systematic Profiling Of Dnmt3a Variants Reveals Protein Instability Mediated By The Dcaf8 E3 Ubiquitin Ligase Adaptor, Yung-Hsin Huang, Chun-Wei Chen, Venkatasubramaniam Sundaramurthy, Mikołaj Słabicki, Dapeng Hao, Caroline J Watson, Ayala Tovy, Jaime M Reyes, Olga Dakhova, Brielle R Crovetti, Christina Galonska, Minjung Lee, Lorenzo Brunetti, Yubin Zhou, Katrina Tatton-Brown, Yun Huang, Xiaodong Cheng, Alexander Meissner, Peter J M Valk, Lionel Van Maldergem, Mathijs A Sanders, Jamie R Blundell, Wei Li, Benjamin L Ebert, Margaret A Goodell
Faculty, Staff and Students Publications
Clonal hematopoiesis is a prevalent age-related condition associated with a greatly increased risk of hematologic disease; mutations in DNA methyltransferase 3A (DNMT3A) are the most common driver of this state. DNMT3A variants occur across the gene with some particularly associated with malignancy, but the functional relevance and mechanisms of pathogenesis of the majority of mutations are unknown. Here, we systematically investigated the methyltransferase activity and protein stability of 253 disease-associated DNMT3A mutations, and found that 74% were loss-of-function mutations. Half of these variants exhibited reduced protein stability and, as a class, correlated with greater clonal expansion and acute …
Crosstalk Between Beta-Adrenergic And Insulin Signaling Mediates Mechanistic Target Of Rapamycin Hyperactivation In Liver Of High-Fat Diet-Fed Male Mice, Sadia Ashraf, Nadia Ashraf, Gizem Yilmaz, Romain Harmancey
Crosstalk Between Beta-Adrenergic And Insulin Signaling Mediates Mechanistic Target Of Rapamycin Hyperactivation In Liver Of High-Fat Diet-Fed Male Mice, Sadia Ashraf, Nadia Ashraf, Gizem Yilmaz, Romain Harmancey
Faculty, Staff and Student Publications
Nonalcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease. While increased nutrient intake and sympathetic activity have been associated with the disease, the pathogenesis of NAFLD remains incompletely understood. We investigated the impact of the interaction of high dietary fat and sugar intake with increased beta-adrenergic receptor (β-AR) signaling on the activity of nutrient-sensing pathways and fuel storage in the liver. C57BL/6J mice were fed a standard rodent diet (STD), a high-fat diet (HFD), a high-fat/high-sugar Western diet (WD), a high-sugar diet with mixed carbohydrates (HCD), or a high-sucrose diet (HSD). After 6 week on …
Crosstalk Between Beta-Adrenergic And Insulin Signaling Mediates Mechanistic Target Of Rapamycin Hyperactivation In Liver Of High-Fat Diet-Fed Male Mice, Sadia Ashraf, Nadia Ashraf, Gizem Yilmaz, Romain Harmancey
Crosstalk Between Beta-Adrenergic And Insulin Signaling Mediates Mechanistic Target Of Rapamycin Hyperactivation In Liver Of High-Fat Diet-Fed Male Mice, Sadia Ashraf, Nadia Ashraf, Gizem Yilmaz, Romain Harmancey
Faculty, Staff and Student Publications
Nonalcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease. While increased nutrient intake and sympathetic activity have been associated with the disease, the pathogenesis of NAFLD remains incompletely understood. We investigated the impact of the interaction of high dietary fat and sugar intake with increased beta-adrenergic receptor (β-AR) signaling on the activity of nutrient-sensing pathways and fuel storage in the liver. C57BL/6J mice were fed a standard rodent diet (STD), a high-fat diet (HFD), a high-fat/high-sugar Western diet (WD), a high-sugar diet with mixed carbohydrates (HCD), or a high-sucrose diet (HSD). After 6 week on …
Uterine Contractions In Rodent Models And Humans, Manasi Malik, Michelle Roh, Sarah K England
Uterine Contractions In Rodent Models And Humans, Manasi Malik, Michelle Roh, Sarah K England
2020-Current year OA Pubs
Aberrant uterine contractions can lead to preterm birth and other labour complications and are a significant cause of maternal morbidity and mortality. To investigate the mechanisms underlying dysfunctional uterine contractions, researchers have used experimentally tractable small animal models. However, biological differences between humans and rodents change how researchers select their animal model and interpret their results. Here, we provide a general review of studies of uterine excitation and contractions in mice, rats, guinea pigs, and humans, in an effort to introduce new researchers to the field and help in the design and interpretation of experiments in rodent models.
Role For Carbohydrate Response Element-Binding Protein (Chrebp) In High Glucose-Mediated Repression Of Long Noncoding Rna Tug1, Jianyin Long, Daniel L Galvan, Koki Mise, Yashpal S Kanwar, Li Li, Naravat Poungavrin, Paul A Overbeek, Benny H Chang, Farhad R Danesh
Role For Carbohydrate Response Element-Binding Protein (Chrebp) In High Glucose-Mediated Repression Of Long Noncoding Rna Tug1, Jianyin Long, Daniel L Galvan, Koki Mise, Yashpal S Kanwar, Li Li, Naravat Poungavrin, Paul A Overbeek, Benny H Chang, Farhad R Danesh
Faculty, Staff and Students Publications
Long noncoding RNAs (lncRNAs) have been shown to play key roles in a variety of biological activities of the cell. However, less is known about how lncRNAs respond to environmental cues and what transcriptional mechanisms regulate their expression. Studies from our laboratory have shown that the lncRNA Tug1 (taurine upregulated gene 1) is crucial for the progression of diabetic kidney disease, a major microvascular complication of diabetes. Using a combination of proximity labeling with the engineered soybean ascorbate peroxidase (APEX2), ChIP-qPCR, biotin-labeled oligonucleotide pulldown, and classical promoter luciferase assays in kidney podocytes, we extend our initial observations in the current …
The Effects Of Total Body Proton Irradiation On Mouse Myometrium, Lillith Bulawa
The Effects Of Total Body Proton Irradiation On Mouse Myometrium, Lillith Bulawa
Undergraduate Honors Theses
The boundaries of human space exploration continue to expand with new technology and discoveries making it even more important to investigate the effects of space on biological systems. Although humans have explored space in small increments, reproductive studies must be conducted to determine if stable short- or long-term residences for humans can exist in space. This study explored the effects of whole-body proton radiation on uterine smooth muscle known as the myometrium. Two types of mice utilized in this study were C57BL/6 and B6.129S6Cybbtm1Din/J NOX2 knockout mice. C57BL/6 mice are standard laboratory mice that were used to represent the wildtype …
Gut Microbiota: From The Forgotten Organ To A Potential Key Player In The Pathology Of Alzheimer's Disease, Dong-Oh Seo, David M Holtzman
Gut Microbiota: From The Forgotten Organ To A Potential Key Player In The Pathology Of Alzheimer's Disease, Dong-Oh Seo, David M Holtzman
Open Access Publications
More than 300 years ago, Antony van Leewenhoeck first described observing single-celled microorganisms, which he termed "animalcules," examining his saliva under a microscope. Although the idea of the coexistence of microorganisms in our body is not new, we have only recently been able to investigate their ecological relationship to our body, with the development of high-throughput molecular techniques. The diverse microorganism communities residing in our guts are established and maintained by complex interactions among microorganisms and their host. Notably, their alteration has been implicated in influencing various diseases including neurological diseases. Alzheimer's disease (AD) is the most common cause of …
Influence Of Native And Processed Cereal Grain Fibers On Gut Health, Junyi Yang
Influence Of Native And Processed Cereal Grain Fibers On Gut Health, Junyi Yang
Department of Food Science and Technology: Dissertations, Theses, and Student Research
Cereal fibers that can be metabolized by gut microbiota have been shown to promote the growth of beneficial bacteria in the gut. Increased consumption of cereal fibers may improve host / gut microbiota interactions in obesity and other metabolic diseases by normalizing gut dysbiosis. The present dissertation describes four research projects to assess the impact of cereal dietary fibers on gut microbiota and host metabolism. In the first study, we determined the treatment temperatures for production of soluble, non-digestible, feruloylated oligo- and polysaccharides (FOPS) from maize bran and wheat bran, and determined the fermentation properties of partially purified FOPS from …
Smooth-Muscle Bmal1 Participates In Blood Pressure Circadian Rhythm Regulation, Zhongwen Xie, Wen Su, Shu Liu, Guogang Zhao, Karyn Esser, Elizabeth A. Schroder, Mellani Lefta, Harald M. Stauss, Zhenheng Guo, Ming Cui Gong
Smooth-Muscle Bmal1 Participates In Blood Pressure Circadian Rhythm Regulation, Zhongwen Xie, Wen Su, Shu Liu, Guogang Zhao, Karyn Esser, Elizabeth A. Schroder, Mellani Lefta, Harald M. Stauss, Zhenheng Guo, Ming Cui Gong
Physiology Faculty Publications
As the central pacemaker, the suprachiasmatic nucleus (SCN) has long been considered the primary regulator of blood pressure circadian rhythm; however, this dogma has been challenged by the discovery that each of the clock genes present in the SCN is also expressed and functions in peripheral tissues. The involvement and contribution of these peripheral clock genes in the circadian rhythm of blood pressure remains uncertain. Here, we demonstrate that selective deletion of the circadian clock transcriptional activator aryl hydrocarbon receptor nuclear translocator-like (Bmal1) from smooth muscle, but not from cardiomyocytes, compromised blood pressure circadian rhythm and decreased blood …
Rhythmic Leptin Is Required For Weight Gain From Circadian Desynchronized Feeding In The Mouse, Deanna M. Arble, Martha H. Vitaterna, Fred W. Turek
Rhythmic Leptin Is Required For Weight Gain From Circadian Desynchronized Feeding In The Mouse, Deanna M. Arble, Martha H. Vitaterna, Fred W. Turek
Biological Sciences Faculty Research and Publications
The neuroendocrine and metabolic effects of leptin have been extensively researched since the discovery, and the later identification, of the leptin gene mutated within the ob/ob mouse. Leptin is required for optimal health in a number of physiological systems (e.g. fertility, bone density, body weight regulation). Despite the extensive leptin literature and many observations of leptin’s cyclical pattern over the 24-hour day, few studies have specifically examined how the circadian rhythm of leptin may be essential to leptin signaling and health. Here we present data indicating that a rhythmic leptin profile (e.g. 1 peak every 24 hours) leads to excessive …
Fibroblast Growth Factor Receptors 1 And 2 In Keratinocytes Control The Epidermal Barrier And Cutaneous Homeostasis, Jingxuan Yang, Michael Meyer, Anna-Katharina Müller, Friederike Böhm, Richard Grose, Tina Dauwalder, Francois Verrey, Manfred Kopf, Juha Partanen, Wilhelm Bloch, David M. Ornitz, Sabine Werner
Fibroblast Growth Factor Receptors 1 And 2 In Keratinocytes Control The Epidermal Barrier And Cutaneous Homeostasis, Jingxuan Yang, Michael Meyer, Anna-Katharina Müller, Friederike Böhm, Richard Grose, Tina Dauwalder, Francois Verrey, Manfred Kopf, Juha Partanen, Wilhelm Bloch, David M. Ornitz, Sabine Werner
Open Access Publications
Fibroblast growth factors (FGFs) are master regulators of organogenesis and tissue homeostasis. In this study, we used different combinations of FGF receptor (FGFR)-deficient mice to unravel their functions in the skin. Loss of the IIIb splice variants of FGFR1 and FGFR2 in keratinocytes caused progressive loss of skin appendages, cutaneous inflammation, keratinocyte hyperproliferation, and acanthosis. We identified loss of FGF-induced expression of tight junction components with subsequent deficits in epidermal barrier function as the mechanism underlying the progressive inflammatory skin disease. The defective barrier causes activation of keratinocytes and epidermal gammadelta T cells, which produce interleukin-1 family member 8 and …
Clinical And Translational Implications Of The Caveolin Gene Family: Lessons From Mouse Models And Human Genetic Disorders., Isabelle Mercier, Jean-Francois Jasmin, Stephanos Pavlides, Carlo Minetti, Neal Flomenberg, Richard G Pestell, Philippe G Frank, Federica Sotgia, Michael P Lisanti
Clinical And Translational Implications Of The Caveolin Gene Family: Lessons From Mouse Models And Human Genetic Disorders., Isabelle Mercier, Jean-Francois Jasmin, Stephanos Pavlides, Carlo Minetti, Neal Flomenberg, Richard G Pestell, Philippe G Frank, Federica Sotgia, Michael P Lisanti
Department of Stem Cell Biology and Regenerative Medicine Faculty Papers & Presentations
Here we review the clinical and translational implications of the caveolin gene family for understanding the pathogenesis of human diseases, including breast and prostate cancers, pulmonary hypertension, cardiomyopathy, diabetes, and muscular dystrophy. Detailed phenotypic analysis of caveolin knockout mice has served to highlight the crucial role of a caveolin deficiency in the pathogenesis of many human disease processes. Mutations in the human caveolin genes are associated with a number of established genetic disorders (such as breast cancer, lipodystrophy, muscular dystrophy, and cardiomyopathy), making the caveolins important and novel targets for drug development. The implementation of new strategies for caveolin replacement …
Immunological Effect Of Polysaccharide Extracted From Pseudomonas Aeruginosa Against Leishmania Donovani In Mice, Hasna H. Jumah
Immunological Effect Of Polysaccharide Extracted From Pseudomonas Aeruginosa Against Leishmania Donovani In Mice, Hasna H. Jumah
Iraqi Postgraduate Medical Journal
ABSTRACT: BACKGROUND: Visceral leishmaniasis is a serious disease with high pathoogenicity. It was noticed that Polysaccharide extracted from Pseudomonas aeruginosa had the ability to induce both cellular & humoral immunity response against bacteria, fungi & parasites. OBJECTIVE: The aim of this study was to know the immunological effects of polysaccharide extracted from Pseudomonas aeruginosa before & after the infection of BALB/c mice with Leishmania donovani in trial to provide a method for prevention of the disease in human. METHODS: 174 male BALB/c mice were divided into control & experimental groups with each group consisting of six animals. The experimental groups …
The Role Of Uncoupling Protein 3 In Human Physiology, W. Timothy Garvey
The Role Of Uncoupling Protein 3 In Human Physiology, W. Timothy Garvey
MUSC Faculty Journal Articles
Obesity is simply understood as an imbalance between energy intake and expenditure in favor of weight accretion. However, the human biological interface between food consumption and energy dissipation results in broad individual differences in eating behavior, physical activity, and efficiency of fuel storage and metabolism. In particular, the basal metabolic rate, which accounts for the greatest portion of overall energy expenditure, can vary almost twofold among individuals. Classically, three major biochemical systems are believed to contribute to basal thermogenesis: futile cycles, Na+/K+ATPase activity, and mitochondrial proton leak. The latter is the most important quantitative contributor and can explain up to …