Novel Oral Anticoagulants For Stroke Prophylaxis And Venous Thromboembolism Prevention And Treatment, 2015 Aurora Health Care Vascular Center
Novel Oral Anticoagulants For Stroke Prophylaxis And Venous Thromboembolism Prevention And Treatment, Laith G. Alsayegh
Journal of Patient-Centered Research and Reviews
Novel oral anticoagulants (NOACs) are becoming popular management options for stroke prophylaxis in nonvalvular atrial fibrillation as well as deep vein thrombosis and pulmonary embolism treatment and prophylaxis. NOACs have similar efficacy to warfarin along with noninferior safety profiles. Patient comorbidities, size, renal and hepatic function, and concomitant drug regimen play a role in which NOAC a physician may choose.
Electrochemical Characterization Of Protein Adsorption Onto Yngrt-Au And Vlgxe-Au Surfaces, 2015 Oakland University
Electrochemical Characterization Of Protein Adsorption Onto Yngrt-Au And Vlgxe-Au Surfaces, Hanna Trzeciakiewicz, Jose Esteves-Villanueva, Rania Soudy, Kamaljit Kaur, Sanela Martic-Milne
Pharmacy Faculty Articles and Research
The adsorption of the proteins CD13, mucin and bovine serum albumin on VLGXE-Au and YNGRT-Au interfaces was monitored by electrochemical impedance spectroscopy in the presence of [Fe(CN)6]3−/4−. The hydrophobicity of the Au surface was tailored using specific peptides, blocking agents and diluents. The combination of blocking agents (ethanolamine or n-butylamine) and diluents (hexanethiol or 2-mercaptoethanol) was used to prepare various peptide-modified Au surfaces. Protein adsorption onto the peptide-Au surfaces modified with the combination of n-butylamine and hexanethiol produced a dramatic decrease in the charge transfer resistance, Rct, for all three proteins. In contrast, polar peptide-surfaces induced ...
Layers Of Law: The Case Of E-Cigarettes, 2015 University of Pennsylvania Law School
Layers Of Law: The Case Of E-Cigarettes, Eric Feldman
This paper, written for a symposium on "Layers of Law and Social Order," connects the current debate over the regulation of electronic cigarettes with socio-legal scholarship on law, norms, and social control. Although almost every aspect of modern life that is subject to regulation can be seen through the framework ‘layers of law,’ e-cigarettes are distinguished by the rapid emergence of an unusually dense legal and regulatory web. In part, the dense fabric of e-cigarette law and regulation, both within and beyond the US, results from the lack of robust scientific and epidemiological data on the behavioral and health consequences ...
Molecular Overlap In The Regulation Of Sk Channels By Small Molecules And Phosphoinositides, 2015 Chapman University
Molecular Overlap In The Regulation Of Sk Channels By Small Molecules And Phosphoinositides, Miao Zhang, Xuan-Yu Meng, Ji-Fang Zhang, Meng Cui, Diomedes E. Logothetis
Pharmacy Faculty Articles and Research
Phosphatidylinositol 4,5-bisphosphate (PIP2) directly interacts with the small-conductance Ca2+-activated K+ 2-a (SK2-a) channel/calmodulin complex, serving as a critical element in the regulation of channel activity. We report that changes of protein conformation in close proximity to the PIP2 binding site induced by a small-molecule SK channel modulator, NS309, can effectively enhance the interaction between the protein and PIP2 to potentiate channel activity. This novel modulation of PIP2 sensitivity by small-molecule drugs is likely not to be limited in its application to SK channels, representing an intriguing strategy to develop drugs controlling the activity of the large number ...
Regulated Phosphorylation Of The K-Cl Cotransporter Kcc3 Is A Molecular Switch Of Intracellular Potassium Content And Cell Volume Homeostasis, 2015 Wright State University - Main Campus
Regulated Phosphorylation Of The K-Cl Cotransporter Kcc3 Is A Molecular Switch Of Intracellular Potassium Content And Cell Volume Homeostasis, Norma C. Adragna, Nagendra B. Ravilla, Peter K. Lauf, Gulnaz Begum, Arjun R. Khanna, Dandan Sun, Kristopher K. Kahle
Pharmacology and Toxicology Faculty Publications
The defense of cell volume against excessive shrinkage or swelling is a requirement for cell function and organismal survival. Cell swelling triggers a coordinated homeostatic response termed regulatory volume decrease (RVD), resulting in K+ and Cl− efflux via activation of K+ channels, volume-regulated anion channels (VRACs), and the K+-Cl− cotransporters, including KCC3. Here, we show genetic alanine (Ala) substitution at threonines (Thr) 991 and 1048 in the KCC3a isoform carboxyl-terminus, preventing inhibitory phosphorylation at these sites, not only significantly up-regulates KCC3a activity up to 25-fold in normally inhibitory isotonic conditions, but is also accompanied by reversal of activity of ...
Cationic Cell-Penetrating Peptides Are Potent Furin Inhibitors, 2015 University of Maryland-Baltimore
Cationic Cell-Penetrating Peptides Are Potent Furin Inhibitors, Bruno Ramos-Molina, Adam N. Lick, Amir Nasrolahi Shirazi, Donghoon Oh, Rakesh Tiwari, Naglaa Salem El-Sayed, Keykavous Parang, Iris Lindberg
Pharmacy Faculty Articles and Research
Cationic cell-penetrating peptides have been widely used to enhance the intracellular delivery of various types of cargoes, such as drugs and proteins. These reagents are chemically similar to the multi-basic peptides that are known to be potent proprotein convertase inhibitors. Here, we report that both HIV-1 TAT47-57 peptide and the Chariot reagent are micromolar inhibitors of furin activity in vitro. In agreement, HIV-1 TAT47-57 reduced HT1080 cell migration, thought to be mediated by proprotein convertases, by 25%. In addition, cyclic polyarginine peptides containing hydrophobic moieties which have been previously used as transfection reagents also exhibited potent furin inhibition in vitro ...
Chemical Biology Of Protein Arginine Modifications In Epigenetic Regulation, 2015 The Scripps Research Institute
Chemical Biology Of Protein Arginine Modifications In Epigenetic Regulation, Jakob Fuhrmann, Kathleen W. Clancy, Paul R. Thompson
Thompson Lab Publications
Review article on histone citrullination (arginine deimination), histone arginine methylation, and noncanonical histone arginine modifications.
Characterization Of The Role That Alternative Ribonucleotide Reductases Play In Restoring Replication In The Presence Of Hydroxyurea In Escherichia Coli, Michael Sadek
PSU McNair Scholars Online Journal
DNA replication is essential for cells to grow and divide. Ribonucleotide reductase is an essential enzyme that is responsible for the formation of deoxyribonucleotides that are used in DNA synthesis during replication. Hydroxyurea is a chemotherapeutic agent that is thought to work by specifically inhibiting the ribonuceotide reductase to prevent replication. However, recent studies in E. coli have shown that following an initial period of inhibition, DNA synthesis then recovers in the presence of hydroxyurea, suggesting that the mode of death and cellular response to hydroxyurea is more complex than originally proposed. The E.coli genome encodes three ribonucleotide reductases ...
The Effects Of Arginine Vasopressin On Maternal Behavior And Aggression In Peromyscus Californicus Mothers, 2015 Seattle Pacific University
The Effects Of Arginine Vasopressin On Maternal Behavior And Aggression In Peromyscus Californicus Mothers, Nathaniel Ng
Research studies since the 1950s have shown that a chemical within the brain called arginine vasopressin (AVP) is associated with the modulation of many different social behaviors in mammals. Some of these behaviors are related to parenting, such as parental care initiation, aggression, social recognition, depression and anxiety. Understanding the physiology behind AVP regulation could allow for the creation of new therapies for treating human social disorders, such as using an AVP receptor antagonist to attenuate anxiety. This project examines how neural injections of AVP and an AVP receptor antagonist affect both maternal care and aggression in female Peromyscus californicus ...
Cloning And Characterization Of The Escherichia Coli Heptosyltransferase Iii: Exploring Substrate Specificity In Lipopolysaccaride Core Biosynthesis, Jagadesh Mudapaka, Erika A. Taylor
Erika A. Taylor, Ph.D.
Bacterial lipopolysaccharide (LPS) molecules are an important cell surface component that enables adhesion to surfaces and cell motility, amongst other functions. In Escherichia coli, there are multiple Heptosyltransferase enzymes involved in the biosynthesis of the core region of LPS. Here we describe the first ever cloning, expression, purification and characterization of Heptosyltransferase III (HepIII) from E. coli, which catalyzes the addition of an l-glycero-d-manno-heptose (Hep) residue to the growing LPS core via an α(1→7) bond. Inspired by results from our lab on the E. coli HepI, we assessed the catalytic efficiency with phospho-Hep2-Kdo2-Lipid A (PH2K2LA) and two deacylated ...
Determination Of Dioctyl Phthalate (Dehp) Concentration In Polyvinyl Chloride (Pvc) Plastic Parts Of Toothbrushes, 2015 Cleveland State University
Determination Of Dioctyl Phthalate (Dehp) Concentration In Polyvinyl Chloride (Pvc) Plastic Parts Of Toothbrushes, Ghazal Sadeghi, Elham Ghaderian, Anne O'Connor
The Downtown Review
Phthalates are chemicals that are widely used in daily products and polyvinyl chloride (PVC) plastics, mainly because of their ability to enhance flexibility and durability. The presence of phthalates in various products contributes to the substantial exposure that all consumers may experience. Continuity in phthalate exposure has several side effects, including endocrine disruption, neurological damage, asthma, hormonal imbalances, obesity, infertility, genital defects, and testicular cancer. The purpose of this research experiment was to determine the Dioctyl phthalate (DEHP) concentration of PVC plastic parts of toothbrushes. The method used to conduct the experiment was Gas Chromatography/Mass Spectrometry. The result showed ...
Synthesis And Characterization Of A New Peptide Prodrug Of Glucosamine With Enhanced Gut Permeability, 2015 University of Alberta
Synthesis And Characterization Of A New Peptide Prodrug Of Glucosamine With Enhanced Gut Permeability, Hamed Gilzad Kohan, Kamaljit Kaur, Fakhreddin Jamali
Pharmacy Faculty Articles and Research
The aim of this study was to synthesize a peptide prodrug of glucosamine (GlcN) with increased gut permeability through the gut peptide transporter 1 (PepT1). Glycine-Valine ester derivative of GlcN (GVG) was synthesised using solid phase synthesis followed by characterization and evaluation of its physicochemical and intestinal stability. In addition, GVG was evaluated for its ability to be biotransformed to GlcN in the liver homogenate. In vitro absorption of the new prodrug through everted rat gut was also assessed. GVG demonstrated significant and meaningful increased gut permeability as compared with GlcN. It showed favorable stability in the gut and a ...
Argatroban For The Treatment Of Heparin-Induced Thrombocytopenia In End Stage Renal Disease And Acute Kidney Injury, 2015 University of Tennessee Health Science Center
Argatroban For The Treatment Of Heparin-Induced Thrombocytopenia In End Stage Renal Disease And Acute Kidney Injury, Lindsey Elmore Pharmd, Bcps, Leslie A. Hamilton Pharm.D., Bcps
Tennessee Medicine E-Journal
Cave Cyanobacteria Showing Antibacterial Activity, 2015 University of Athens, Faculty of Biology, Department of Ecology & Systematics
Cave Cyanobacteria Showing Antibacterial Activity, Vasiliki Lamprinou, Kyriaki Tryfinopoulou, Emmanuel N. Velonakis, Alkiviadis Vatopoulos, Smaragdi Antonopoulou, Elizabeth Fragopoulou, Adriani Pantazidou, Athena Economou-Amilli
International Journal of Speleology
Cave Cyanobacteria - thriving in an ‘extreme’ environment with interesting species biodiversity - are supposed to be a potential source of bioactive compounds. Lipid extracts from pure cultures of two recently established Cyanobacteria from Greek caves, Toxopsis calypsus and Phormidium melanochroun, were used for antibacterial screening against human pathogenic bacteria (reference and clinical isolates). Antimicrobial Susceptibility testing for both taxa was carried out using the disc-diffusion (Kirby Bauer) method, while preliminary data applying the standard broth microdilution method for the determination of the Minimal Inhibitory Concentration (MIC) are given only for T. calypsus. Antibacterial activity was demonstrated against the Gram-positive clinical and ...
The Effect Of An Educational Intervention On Oral Anticoagulation Therapy Knowledge In Primary Care, 2015 Valparaiso University
The Effect Of An Educational Intervention On Oral Anticoagulation Therapy Knowledge In Primary Care, Elizabeth D. Deck
Evidence-Based Practice Project Reports
It is estimated that three million people in the United States are on oral anticoagulation therapy (warfarin). Populations studied have been found in therapeutic range 64% of the time (Pernod, Labarere, & Bosson, 2008). The low percentage of therapeutic range is attributable to (a) adherence, (b) monitoring infrequency, (c) Vitamin K antagonists, and (d) the effects of aging and comorbidities. The purpose of this evidence-based practice (EBP) project was to examine whether an educational intervention would improve the knowledge of patients receiving warfarin therapy. Roy’s model for patient adaptation and the Stetler Model for EBP were used as frameworks for the project. A pretest/posttest design was used over a 2-week period that included 38 patients aged 42 through 90 (M = 74.7, SD = 10.1). An educational intervention done by the project manager using a booklet, video, and food models on warfarin therapy was completed after the pretest. Patients’ INR (International Normalized Ratio) values were tracked at pretest, posttest, and every two weeks for twelve weeks. A paired sample t test found a statistically significant difference between the pre- and posttest scores. The mean pretest score was 11.11; SD = 2.35 compared to the posttest mean score of 12.48; SD = 1.45; (t (37) = - 4.215, p < .001). No significant difference from pretest INR to posttest INR was found (t (26) = -2.002, p > .056). A Cochran’s Q test showed INR results from 4 to 12 weeks were not statistically significant (x²(4) = 4, p > .406). Results demonstrated that an educational intervention improved patient knowledge, but the intervention did not improve the patients’ INR values over two weeks, or over the four ...
The Characterization Of Amyloid Fibrils And Novel Synthetic Heparin-Binding Peptides Binding To Cell Surfaces, 2015 University of Tennessee, Knoxville
The Characterization Of Amyloid Fibrils And Novel Synthetic Heparin-Binding Peptides Binding To Cell Surfaces, Nicole Marie Hackenbrack
University of Tennessee Honors Thesis Projects
No abstract provided.
Effects Of Different Brands Of Coffee On The Transcriptional Activity Of Drosophila Cyp6a8 Gene Promoter, 2015 University of Tennessee, Knoxville
Effects Of Different Brands Of Coffee On The Transcriptional Activity Of Drosophila Cyp6a8 Gene Promoter, Marie Ashley Scott
University of Tennessee Honors Thesis Projects
No abstract provided.
Evaluation Of Bde-47 And -99 Lipid Modulating Effects In Hepg2 Human Carcinoma Cells, 2015 University of Rhode Island
Evaluation Of Bde-47 And -99 Lipid Modulating Effects In Hepg2 Human Carcinoma Cells, Eileen A. Holovac
Senior Honors Projects
Non-alcoholic fatty liver disease (NAFLD) is becoming a significantly more common problem in today’s society, affecting up to 25% of people in the United States as reported by the American Liver Foundation. According to the American Association of the Study of Liver Diseases, NAFLD is the buildup of fat in the liver that is not caused by secondary factors such as alcohol consumption, hereditary disorders, or the use of steatogenic medication such as amioderone. A liver is considered fatty when 5-10% of the liver’s weight is fat. The progression of NAFLD can lead to cirrhosis, liver cancer, or ...
Advanced Problem Solving In The Biotherapeutics Industry: Parameters Influencing The Delivery Of A Novel Cell Therapy Product And Exploration Of A New Method For Determining Activity Of Clostridium Histolyticum Collagenase, A Wound Debridement Enzyme, 2015 University of North Texas Health Science Center at Fort Worth
Advanced Problem Solving In The Biotherapeutics Industry: Parameters Influencing The Delivery Of A Novel Cell Therapy Product And Exploration Of A New Method For Determining Activity Of Clostridium Histolyticum Collagenase, A Wound Debridement Enzyme, Melanie A. Harris B.S.
Theses and Dissertations
Biotechnology is a multi-faceted industry with many unique challenges that require knowledge in a broad range of topics. When working in the wound care field it is necessary to not only create a product in the laboratory, but also effectively bring it to the patient. This task requires many skilled people who can test it for efficacy, design and conduct clinical trials, confirm quality and consistency, design packaging, consider transportation issues and so on. The following investigation focuses on the testing of a cellular product and its accompanying device under various conditions as well as the exploration of a new ...
Oxphos-Mediated Induction Of Nad+ Promotes Complete Oxidation Of Fatty Acids And Interdicts Non-Alcoholic Fatty Liver Disease, 2015 University of Massachusetts Medical School
Oxphos-Mediated Induction Of Nad+ Promotes Complete Oxidation Of Fatty Acids And Interdicts Non-Alcoholic Fatty Liver Disease, Thomas E. Akie, Lijun Liu, Minwoo Nam, Shi Lei, Marcus P. Cooper
Open Access Articles
OXPHOS is believed to play an important role in non-alcoholic fatty liver disease (NAFLD), however, precise mechanisms whereby OXPHOS influences lipid homeostasis are incompletely understood. We previously reported that ectopic expression of LRPPRC, a protein that increases cristae density and OXPHOS, promoted fatty acid oxidation in cultured primary hepatocytes. To determine the biological significance of that observation and define underlying mechanisms, we have ectopically expressed LRPPRC in mouse liver in the setting of NAFLD. Interestingly, ectopic expression of LRPPRC in mouse liver completely interdicted NAFLD, including inflammation. Consistent with mitigation of NAFLD, two markers of hepatic insulin resistance-ROS and PKCepsilon ...