Chloroquine-Inducible Par-4 Secretion Is Essential For Tumor Cell Apoptosis And Inhibition Of Metastasis, 2017 University of Kentucky
Chloroquine-Inducible Par-4 Secretion Is Essential For Tumor Cell Apoptosis And Inhibition Of Metastasis, Ravshan Burikhanov, Nikhil Hebbar, Sunil K. Noothi, Nidhi Shukla, James Sledziona, Nathália Araujo, Meghana Kudrimoti, Qing Jun Wang, David S. Watt, Danny R. Welch, Jodi Maranchie, Akihiro Harada, Vivek M. Rangnekar
Radiation Medicine Faculty Publications
The induction of tumor suppressor proteins capable of cancer cell apoptosis represents an attractive option for the re-purposing of existing drugs. We report that the anti-malarial drug, chloroquine (CQ), is a robust inducer of Par-4 secretion from normal cells in mice and cancer patients in a clinical trial. CQ-inducible Par-4 secretion triggers paracrine apoptosis of cancer cells and also inhibits metastatic tumor growth. CQ induces Par-4 secretion via the classical secretory pathway that requires the activation of p53. Mechanistically, p53 directly induces Rab8b, a GTPase essential for vesicle transport of Par-4 to the plasma membrane prior to secretion. Our findings ...
Total Organic Iodine Quantification And Occurrence In Drinking Water, And Toxicity Assessment Of Iodinated Disinfection By-Products, 2017 University of Massachusetts Amherst
Total Organic Iodine Quantification And Occurrence In Drinking Water, And Toxicity Assessment Of Iodinated Disinfection By-Products, Rassil El Sayess
Doctoral Dissertations May 2014 - current
The focus of this work has been placed is on iodinated DBPs (I-DBPs), measured using total organic iodine (TOI), a surrogate measure of iodinated organics. This is due to the growing toxicity literature that places I-DBPs among the most toxic of all DBPs. To measure TOI in water, a new method was developed. This method combines adsorption, combustion, and trapping of combustion products, with an offline inductively coupled plasma/mass spectrometer (ICP-MS) for iodide detection. Three factors were varied across two levels each in order to optimize the method. The chosen method used a sample pH of less than 1 ...
Identification Of “Kratom” (Mitragyna Speciosa) Alkaloids In Commercially Available Products, 2017 Virginia Commonwealth University
Identification Of “Kratom” (Mitragyna Speciosa) Alkaloids In Commercially Available Products, Julia Grzymkowski, Michelle R. Peace, Justin Poklis
Undergraduate Research Posters
“Kratom” is the common name for the botanical mitragyna speciosa. It is a tree native to Southeast Asia in which leaves contain the psychoactive alkaloids mitragynine and 7-hydroxymitragynine. Kratom is often ingested as teas, chewed, or smoked. It acts as a stimulant in small doses and as an opioid in large doses. Overdoses can result in vomiting, seizures, and death. Recently the Drug Enforcement Agency (DEA) placed Kratom on Schedule 1, but, due to public outcry, it was almost immediately removed.
Eleven kratom based products were obtained from various tobacco shops, “headshops” and via the internet including: Choice brand capsule ...
Immunotherapy Against Drugs Of Abuse, 2017 Sacred Heart University
Immunotherapy Against Drugs Of Abuse, Gianna Raimondi (Class Of 2017)
Writing Across the Curriculum
Current treatments for drug addiction involve classical pharmacological therapy, involving the use of competitive or noncompetitive agonists (full, partial, or inverse) and antagonists. Drugs of abuse enter the brain after crossing the blood-brain barrier rapidly and binding to the proper receptor(s). They are able to do so because they are small and lipid soluble, and produce reinforcing effects by increasing levels of dopamine in brain areas associated with reward. This occurs in specific systems associated with addiction. In the mesolimbic system, neuron cell bodies originate in the ventral tegmental area (VTA) and project to the nucleus accumbens (NAc), amygdala ...
Bursian Et Al 2017 Overview Of Avian Toxicity Dwh Nrda Ees.Pdf, 2016 Michigan State University
Bursian Et Al 2017 Overview Of Avian Toxicity Dwh Nrda Ees.Pdf, Steven Bursian, C R. Alexander, Dave Cacela, Fred L. Cunningham, Karen M. Dean, Brian S. Dorr, Chris K. Ellis, Celine A. Goddard-Codding, Chris G. Guglielamo, Katie C. Hanson-Dorr, Kendal E. Harr, Katherine A. Healy, Michael J. Hooper, Katherine E. Horak, John P. Isanhart, L V. Kennedy, Jane E. Link, Ivan Maggini, J K. Moye, C R. Perez, Chris A. Pritsos, Susan A. Shriner, K A. Trust, Pete L. Tuttle
Brian S Dorr
Molecular Measurement Of Toxicity In Fish; Case Examples And Policy Implications, 2016 University of Rhode Island
Molecular Measurement Of Toxicity In Fish; Case Examples And Policy Implications, Jessica A. Freedman
Senior Honors Projects
Stormwater and oil are common urban contaminants that can be harmful to fish species. One way of recognizing exposed and impaired fish is by monitoring gene expression and gene induction. This study focused on the identification and validation of reference genes for measuring contaminant-induced changes in gene expression due to urban influence. In this study, reference genes (which are genes used to normalize data and remain consistent in varying exposures regardless of organism and tissue type) were established. Six genes were identified as reference genes (ef1a, wdtc1, mtm1, spop, rxrba and tuba1) from a longer list of potential reference genes ...
Novel Tools For Targeting Pcbs And Pcb Metabolites Using Ssdna Aptamers, 2016 University of Iowa
Novel Tools For Targeting Pcbs And Pcb Metabolites Using Ssdna Aptamers, Marisa Genevive Salomon Beltran
Theses and Dissertations
Polychlorinated biphenyls (PCBs) are persistent environmental chemicals. Mono-hydroxylated polychlorinated biphenyls (OH-PCBs) are PCB metabolites found commonly in human blood, environmental water and sediment samples. Detection of small amounts of PCBs and their OH-PCB metabolites in biological matrices from epidemiological and laboratory studies remains a challenge.
The application of aptamers is studied as a means to identify and quantify PCBs and OH-PCBs. Aptamers are single stranded short oligonucleotides that arrange into unique shape of three-dimensional structures when binding to their target. Like antibodies they have high affinity and specificity for their specific target. The hypothesis is that aptamers can identify PCBs ...
Use Of A Modified Greenscreen Tool To Conduct A Screening-Level Comparative Hazard Assessment Of Conventional Silver And Two Forms Of Nanosilver., Jennifer Sass, Lauren Heine, Nina Hwang
Environmental and Occupational Health Faculty Publications
BACKGROUND: Increased concern for potential health and environmental impacts of chemicals, including nanomaterials, in consumer products is driving demand for greater transparency regarding potential risks. Chemical hazard assessment is a powerful tool to inform product design, development and procurement and has been integrated into alternative assessment frameworks. The extent to which assessment methods originally designed for conventionally-sized materials can be used for nanomaterials, which have size-dependent physical and chemical properties, have not been well established. We contracted with a certified GreenScreen profiler to conduct three GreenScreen hazard assessments, for conventional silver and two forms of nanosilver. The contractor summarized publicly ...
The Influence Of Oxygen Tension And Glycolytic And Citric Acid Cycle Substrates In Acrolein-Induced Cellular Injury In The Differentiated H9c2 Cardiac Cell Model, Jayme Coyle
Graduate Theses and Dissertations
Most in vitro systems employ the standard cell culture maintenance conditions of 95 % air with 5 % CO2 to balance medium pH, which translates to culture oxygen tensions of approximately 20 % - above the typical ≤ 6 % found in most tissues. The current investigation, therefore, aims to characterize the effect of maintenance and toxicant exposure with a particular focus on the α,β-unsaturated aldehyde, acrolein, in the presence of physiologically relevant oxygen tension using a differentiated H9c2 cardiomyoblast subclone. H9c2 cells were maintained separately in 20.1 and 5 % oxygen, after which cells were differentiated for five days, and then exposed to acrolein ...
Aneuploidy: A Common And Early Evidence-Based Biomarker For Carcinogens And Reproductive Toxicants., 2016 George Washington University
Aneuploidy: A Common And Early Evidence-Based Biomarker For Carcinogens And Reproductive Toxicants., Daniele Mandrioli, Fiorella Belpoggi, Ellen K Silbergeld, Melissa J. Perry
Environmental and Occupational Health Faculty Publications
Aneuploidy, defined as structural and numerical aberrations of chromosomes, continues to draw attention as an informative effect biomarker for carcinogens and male reproductive toxicants. It has been well documented that aneuploidy is a hallmark of cancer. Aneuploidies in oocytes and spermatozoa contribute to infertility, pregnancy loss and a number of congenital abnormalities, and sperm aneuploidy is associated with testicular cancer. It is striking that several carcinogens induce aneuploidy in somatic cells, and also adversely affect the chromosome compliment of germ cells. In this paper we review 1) the contributions of aneuploidy to cancer, infertility, and developmental abnormalities; 2) techniques for ...
School Siting Near Industrial Chemical Facilities: Findings From The U.S. Chemical Safety Board's Investigation Of The West Fertilizer Explosion., Veronica A Tinney, Jerad M Denton, Lucy Sciallo-Tyler, Jerome A. Paulson
Environmental and Occupational Health Faculty Publications
BACKGROUND: The U.S. Chemical Safety and Hazard Investigation Board (CSB) investigated the April 17, 2013 explosion at the West Fertilizer Company (WFC) that resulted in 15 fatalities, more than 260 injuries and damage to more than 150 buildings. Among these structures were four nearby school buildings cumulatively housing children in grades K-12, a nursing care facility and an apartment complex. The incident occurred during the evening when school was not in session, which reduced the number of injuries.
OBJECTIVES: The goal of this paper is to illustrate the consequences of siting schools near facilities that store or use hazardous ...
Quantifying The Toxicity Of 1-Methylnaphthalene To The Shallow-Water Coral, Porites Divaricata, For Use In The Target Lipid Model, 2016 Nova Southeastern University
Quantifying The Toxicity Of 1-Methylnaphthalene To The Shallow-Water Coral, Porites Divaricata, For Use In The Target Lipid Model, Nicholas Turner
Theses and Dissertations
The proximity of coral reefs to coastal urban areas and shipping lanes predisposes corals to petroleum pollution from multiple sources. Previous research has evaluated petroleum toxicity to coral using a variety of methodologies, including monitoring effects of acute and chronic spills, in situ exposures, and ex situ exposures with both adult and larval stage corals. Variability in toxicant, bioassay conditions, species and other methodological disparities among studies prevents comprehensive conclusions regarding the toxicity of hydrocarbons to corals. This research evaluated the 48-hour toxicity of 1-methylnaphthalene to Porites divaricata using a continuous-flow passive dosing system. The range-finding exposure evaluated the dosing ...
Synthetic And Biological Exploration Of (+)-Boldine - Identification Of Potential Cns Receptor Ligands, 2016 CUNY Hunter College
Synthetic And Biological Exploration Of (+)-Boldine - Identification Of Potential Cns Receptor Ligands, Sujay Joseph
School of Arts & Sciences Theses
(+)-Boldine, an aporphine alkaloid, is reported to be biologically active at various Central Nervous System(CNS) receptors. However, only a few Structure Activity Relationship(SAR) studies have been conducted using boldine’s aporphine scaffold. A library of novel analogs was synthesized from boldine to understand the effect of bisbenzylation at C2 and C9 positions on the affinity and selectivity at the serotonin receptors.
Air Pollution, Pulmonary Oxidative Stress, And The Endothelin System In The Development Of Cardiovascular Injury., 2016 University of Louisville
Air Pollution, Pulmonary Oxidative Stress, And The Endothelin System In The Development Of Cardiovascular Injury., Jordan B. Finch
Electronic Theses and Dissertations
The goal of this project was to examine the role of endothelin-1 (ET-1) as a mediator in the pathway between air pollution exposure and the development of vascular injury. A human cohort and male mice (C57BL/6 and ecSOD-Tg) were used to evaluate changes in the ET-1 system in response to exposures of fine particulate matter (PM2.5). Human ET-1 levels were significantly associated with environmental factors and markers of vascular change, but were decreased with increased PM2.5. No association was seen between ET-1 and endothelial progenitor cells (EPCs) except for EPC-4, possibly indicating a regulatory relationship with this ...
Evaluation Of Alterations In Dopamine And Neuro-Toxicity Caused By Co-Exposure To Lead (Pb) And Polychlorinated Biphenyls (Pcbs), Sabah Hassain Enayah
Theses and Dissertations
Polychlorinated biphenyls (PCBs) are synthetic organic compounds that resist natural breakdown in the environment. Various toxic metals are found naturally in the earth and may become concentrated as a result a human activity. PCBs and toxic metals are a major public health concern due to human exposure from both natural and anthropogenic sources. Humans may be exposed to these chemicals from occupational sources, ingestion through food, drinking water and some medications. The main risk arising from environmental pollution by toxic metals and PCBS is damage to the nervous system. This thesis set out to answer two questions 1) does co-exposure ...
The Effect Of Parathion On Red Blood Cell Acetylcholinesterase In The Wistar Rat, 2016 Sapporo Medical University
The Effect Of Parathion On Red Blood Cell Acetylcholinesterase In The Wistar Rat, Naofumi Bunya, Keigo Sawamoto, Hanif Benoit, Steven B. Bird
Open Access Articles
Organophosphorus (OP) pesticide poisoning is a significant problem worldwide. Research into new antidotes for these acetylcholinesterase inhibitors, and even optimal doses for current therapies, is hindered by a lack of standardized animal models. In this study, we sought to characterize the effects of the OP pesticide parathion on acetylcholinesterase in a Wistar rat model that included comprehensive medical care. Methods. Male Wistar rats were intubated and mechanically ventilated and then poisoned with between 20 mg/kg and 60 mg/kg of intravenous parathion. Upon developing signs of poisoning, the rats were treated with standard critical care, including atropine, pralidoxime chloride ...
Protection Against Radiotherapy-Induced Toxicity, 2016 Griffith University
Protection Against Radiotherapy-Induced Toxicity, Susan Hall, Santosh Rudrawar, Matthew Zunk, Nijole Bernaitis, Devinder Arora, Catherine M. Mcdermott, Shailendra Anoopkumar-Dukie
Faculty of Health Sciences & Medicine Publications
Radiation therapy is a highly utilized therapy in the treatment of malignancies with up to 60% of cancer patients receiving radiation therapy as a part of their treatment regimen. Radiation therapy does, however, cause a wide range of adverse effects that can be severe and cause permanent damage to the patient. In an attempt to minimize these effects, a small number of compounds have been identified and are in use clinically for the prevention and treatment of radiation associated toxicities. Furthermore, there are a number of emerging therapies being developed for use as agents that protect against radiation-induced toxicities. The ...
From Milpas To The Market: A Study On The Use Of Metal Silos For Safer And Better Storage Of Guatemalan Maize, 2016 University of Nebraska-Lincoln
From Milpas To The Market: A Study On The Use Of Metal Silos For Safer And Better Storage Of Guatemalan Maize, José Rodrigo Mendoza
Dissertations & Theses in Food Science and Technology
This project aimed to implement the use of metal silos to improve quality and safety of maize consumed by inhabitants of the highlands of Guatemala. This manuscript includes a literature review of the maize production chain in Guatemala, a survey about agricultural practices used in the region of study, as well as a characterization of the analyzed maize regarding its mycoflora, nutritional composition, and insect infestation. To better understand the current situation regarding agricultural practices and maize consumption, a survey was carried out. Sample consisted of 280 families representing 14 rural communities distributed in the townships of Todos Santos and ...
Exploration Of Chemical And Biological Management Strategies For Diaphorina Citri The Primary Vector Of Candidatus Liberibacter Asiaticus, 2016 University of Texas at Tyler
Exploration Of Chemical And Biological Management Strategies For Diaphorina Citri The Primary Vector Of Candidatus Liberibacter Asiaticus, Gretta Marie Sharp
Diaphorina citri (Hemipteran: Psyllidae), the Asian citrus psyllid, is a phloem-feeding, invasive species endemic to southern Asia that was first identified in the United States in Florida in 1998. Since introduction, D. citri has spread across the major citrus growing regions of the United States. This is of great concern to the citrus industry because D. citri is the primary vector of Candidatus Liberibacter asiaticus the causal agent of Haunglongbing (HLB). Haunglongbing is the most economically devastating disease of citrus causing an estimated 8.92 billion dollars lost in revenue and 4.62 billion dollars lost in gross domestic product ...
Omics As Therapeutic Platform: Environmental Factors To Parkinson's Disease, 2016 New York Medical College
Omics As Therapeutic Platform: Environmental Factors To Parkinson's Disease, Hong-Duck Kim, Shana Warner, Kamini Singh, Jae-Hyeon Cho, Diane E. Heck
NYMC Faculty Publications
No abstract provided.