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Full-Text Articles in Toxicology

Toxicological Effects And Treatment Of Accidental Ingestion Of Simparica Trio® In Felis Catus: An Investigative Review, Aussia Stander May 2024

Toxicological Effects And Treatment Of Accidental Ingestion Of Simparica Trio® In Felis Catus: An Investigative Review, Aussia Stander

Honors Theses

Simparica TRIO®, a canine endectocide manufactured by Zoetis, contains sarolaner, moxidectin, and pyrantel pamoate salt in an orally administered chewable tablet. These compounds are all toxic to both cats and dogs in sufficient amounts. As Simparica TRIO® rises in popularity among pet owners, Felis catus (felines, cats) in multi-pet households (households with both cats and dogs) are at increased risk of overdosage and toxicosis from accidental ingestion of Simparica TRIO® due to their smaller weight.

Simparica TRIO® is not for feline use and little literature exists on the symptoms of and treatment for accidental ingestion …


Lead Bioaccessibility And Commonly Measured Soil Characteristics (Detroit, Mi, Usa) – Phase 1, Sabrina R. Good, Allison R. Harris, Patrick Crouch, Conor T. Gowan, William D. Shuster, Shawn P. Mcelmurry Jan 2024

Lead Bioaccessibility And Commonly Measured Soil Characteristics (Detroit, Mi, Usa) – Phase 1, Sabrina R. Good, Allison R. Harris, Patrick Crouch, Conor T. Gowan, William D. Shuster, Shawn P. Mcelmurry

Open Data at Wayne State

Contaminated urban soil is one of the major contributors to child Pb exposure. To gain a better understanding of Pb risk in urban areas, composite samples were collected from 142 residential, privately owned, parcels in Detroit, Hamtramck, and Highland Park, Michigan, with approval from the property owners. The proximity of soil sampling and former smelter locations were also reported. Sample were collected from areas covered with turf grass. Four samples were collected, one from each cardinal direction (north, south, east, and west), 20 cm from an aluminum tent stake driven into the center of the sampling site. Soils were collected …


Assessment Of Spilled Toxic Bait By Wild Pigs And Potential Risk To Non-Target Species, John C. Kinsey, Justin A. Foster, Nathan P. Snow, Jason D. Wishart, Linton D. Staples, Janis K. Bush, Kurt V. Vercauteren Jan 2023

Assessment Of Spilled Toxic Bait By Wild Pigs And Potential Risk To Non-Target Species, John C. Kinsey, Justin A. Foster, Nathan P. Snow, Jason D. Wishart, Linton D. Staples, Janis K. Bush, Kurt V. Vercauteren

USDA Wildlife Services: Staff Publications

Background

In 2018, a sodium nitrite (SN)-based toxic bait for invasive wild pigs (hereafter wild pigs; Sus scrofa), was evaluated to determine its effectiveness in reducing local wild pig populations in Texas. Localized population reductions of > 70% were achieved, but spillage of bait outside wild pig-specific feeders (bait stations) caused by feeding wild pigs resulted in the deaths of non-target animals. To evaluate risks to non-target animals, we tested whether bait presentation influenced the total amount of bait spilled by wild pigs and estimated the associated risk to non-target species.

Results

We found that bait spilled outside bait stations …


Halogen Bonding Interactions Of Haloaromatic Endocrine Disruptors And The Potential For Inhibition Of Iodothyronine Deiodinases, Craig A. Bayse Jan 2023

Halogen Bonding Interactions Of Haloaromatic Endocrine Disruptors And The Potential For Inhibition Of Iodothyronine Deiodinases, Craig A. Bayse

Chemistry & Biochemistry Faculty Publications

Halogen bonding (XB) is a potential mechanism for the inhibition of the thyroid-activating/deactivating iodothyronine deiodinase family of selenoproteins through interactions with halogenated endocrine disrupting compounds (EDCs). Trends in XB interactions were examined using density functional theory for a series of polyhalogenated dibenzo-1,4-dioxins, biphenyls, and other EDCs with methylselenolate, a simple model of the Dio active site selenocysteine. The strengths of the interactions depend upon the halogen (Br>Cl), the degree of substitution, and the position of the acceptor. In terms of donor-acceptor energies, interactions at the meta position are often the strongest, suggesting a link to the topology of THs, …


The Intersection Between Toxicology And Aging Research: A Toxic Aging Coin Perspective., John P. Wise Jr. Sep 2022

The Intersection Between Toxicology And Aging Research: A Toxic Aging Coin Perspective., John P. Wise Jr.

Faculty Scholarship

We are imminently faced with the challenges of an increasingly aging population and longer lifespans due to improved health care. Concomitantly, we are faced with ubiquitous environmental pollution linked with various health effects and age-related diseases which contribute to increased morbidity with age. Geriatric populations are rarely considered in the development of environmental regulations or in toxicology research. Today, life expectancy is often into one’s 80s or beyond, which means multiple decades living as a geriatric individual. Hence, adverse health effects and late-onset diseases might be due to environmental exposures as a geriatric, and we currently have no way of …


A Study On The Efficacy Of A Naloxone Training Program, Gillian A. Beauchamp Md, Hoonani M. Cuadrado, Seth A. Campbell Pa-C, Bennie Eliason Chw, Chase Jones Do, Aaron Fedor Do, Lauren Grantz Pharmd, Csp, Paige Roth Lsw, Marna Greenberg Nov 2021

A Study On The Efficacy Of A Naloxone Training Program, Gillian A. Beauchamp Md, Hoonani M. Cuadrado, Seth A. Campbell Pa-C, Bennie Eliason Chw, Chase Jones Do, Aaron Fedor Do, Lauren Grantz Pharmd, Csp, Paige Roth Lsw, Marna Greenberg

Department of Emergency Medicine

Introduction: The use of naloxone to reverse a potentially fatal opioid overdose is a harm reduction strategy that reduces mortality and increases the potential for referral to substance use treatment for affected individuals. In the setting of outreach performed by a street medicine team, we aimed to determine the effectiveness of an educational intervention involving distribution of naloxone accompanied by a brief instructive session about opioids, opioid overdose, and medication administration. Methods: Our street medicine outreach team distributed 200 naloxone kits to clinicians and volunteers involved in caring for patients on ‘street rounds,’ as well as in shelters, soup kitchens, …


Childhood Exposure To Per- And Polyfluoroalkyl Substances (Pfas) And Neurobehavioral Domains In Children At Age 8 Years, Ann M. Vuong, Kimberly Yolton, Changchun Xie, Kim N. Dietrich, Joseph M. Braun, Glenys M. Webster, Antonia M. Calafat, Bruce P. Lanphear, Aimin Chen Aug 2021

Childhood Exposure To Per- And Polyfluoroalkyl Substances (Pfas) And Neurobehavioral Domains In Children At Age 8 Years, Ann M. Vuong, Kimberly Yolton, Changchun Xie, Kim N. Dietrich, Joseph M. Braun, Glenys M. Webster, Antonia M. Calafat, Bruce P. Lanphear, Aimin Chen

Environmental & Occupational Health Faculty Publications

Background: Toxicological studies have raised concerns regarding the neurotoxic effects of per- and polyfluoroalkyl substances (PFAS). However, observational evidence from human studies investigating the association between childhood PFAS and neurobehavior is limited and remains unclear. Objectives: To examine whether childhood PFAS concentrations are associated with neurobehavior in children at age 8 years and whether child sex modifies this relationship. Methods: We used data from 208 mother-child dyads in the Health Outcomes and Measures of the Environment (HOME) Study, a prospective pregnancy and birth cohort (Cincinnati, OH, USA). We quantified PFAS in child serum at 3 and 8 years. We assessed …


Innate Immune Activation By Checkpoint Inhibition In Human Patient-Derived Lung Cancer Tissues, Teresa W. M. Fan, Richard M. Higashi, Huan Song, Saeed Daneshmandi, Angela L. Mahan, Matthew S. Purdom, Therese J. Bocklage, Thomas A. Pittman, Daheng He, Chi Wang, Andrew N. Lane Aug 2021

Innate Immune Activation By Checkpoint Inhibition In Human Patient-Derived Lung Cancer Tissues, Teresa W. M. Fan, Richard M. Higashi, Huan Song, Saeed Daneshmandi, Angela L. Mahan, Matthew S. Purdom, Therese J. Bocklage, Thomas A. Pittman, Daheng He, Chi Wang, Andrew N. Lane

Center for Environmental and Systems Biochemistry Faculty Publications

Although Pembrolizumab-based immunotherapy has significantly improved lung cancer patient survival, many patients show variable efficacy and resistance development. A better understanding of the drug’s action is needed to improve patient outcomes. Functional heterogeneity of the tumor microenvironment (TME) is crucial to modulating drug resistance; understanding of individual patients’ TME that impacts drug response is hampered by lack of appropriate models. Lung organotypic tissue slice cultures (OTC) with patients’ native TME procured from primary and brain-metastasized (BM) non-small cell lung cancer (NSCLC) patients were treated with Pembrolizumab and/or beta-glucan (WGP, an innate immune activator). Metabolic tracing with 13C6-Glc/ …


Developmental Ethanol Exposure Causes Central Nervous System Dysfunction And May Slow The Aging Process In A Drosophila Model Of Fetal Alcohol Spectrum Disorder, Khaoula Belhorma, Nahed Darwish, Elizabeth Benn-Hirsch, Annalisa Duenas, Hillary Gates, Navneet Sanghera, Jodie Wu, Rachael L. French Jun 2021

Developmental Ethanol Exposure Causes Central Nervous System Dysfunction And May Slow The Aging Process In A Drosophila Model Of Fetal Alcohol Spectrum Disorder, Khaoula Belhorma, Nahed Darwish, Elizabeth Benn-Hirsch, Annalisa Duenas, Hillary Gates, Navneet Sanghera, Jodie Wu, Rachael L. French

Faculty Research, Scholarly, and Creative Activity

Alcohol is a known teratogen, and developmental exposure to ethanol results in fetal alcohol spectrum disorder (FASD). Children born with FASD can exhibit a range of symptoms including low birth weight, microcephaly, and neurobehavioral problems. Treatment of patients with FASD is estimated to cost 4 billion dollars per year in the United States alone, and 2 million dollars per affected individual's lifetime. We have established Drosophila melanogaster as a model organism for the study of FASD. Here we report that mutations in Dementin (Dmtn), the Drosophila ortholog of the Alzheimer's disease-associated protein TMCC2, convey sensitivity to developmental ethanol exposure, …


Stress, Alcohol Use, And Punitive Parenting During The Covid-19 Pandemic, Jennifer Price Wolf, Bridget Freisthler, Caileigh Chadwick May 2021

Stress, Alcohol Use, And Punitive Parenting During The Covid-19 Pandemic, Jennifer Price Wolf, Bridget Freisthler, Caileigh Chadwick

Faculty Research, Scholarly, and Creative Activity

Background
Emerging research suggests that parents are experiencing heightened stress during the COVID-19 pandemic. Parental stress is a risk factor for harsh or punitive parenting, and this association may be exacerbated by the use of alcohol.
Objective
We examine whether parental stress is associated with use of punitive parenting, as well as whether this association is modified by drinking pattern.
Participants & setting
We used advertisements and word-of-mouth to recruit 342 parents living in Central Ohio during the initial stay-at-home order for COVID-19.
Methods
We used geographic ecological momentary assessment (gEMA) to measure parental stress and punitive parenting during three …


Physicochemical Characterization And Genotoxicity Of The Broad Class Of Carbon Nanotubes And Nanofibers Used Or Produced In Us Facilities, Kelly Fraser, Vamsi Kodali, Naveena Yanamala, M. Eileen Birch, Lorenzo Cena, Gary Casuccio, Kristin Bunker, Traci L. Lersch, Douglas E. Evans, Aleksandr Stefaniak, Mary Ann Hammer, Michael L. Kashon, Theresa Boots, Tracy Eye, John Hubczak, Sherri A. Friend, Matthew Dahm, Mary K. Schubauer-Berigan, Katelyn Siegrist, David Lowry, Alison K. Bauer, Linda M. Sargent, Aaron Erdely Dec 2020

Physicochemical Characterization And Genotoxicity Of The Broad Class Of Carbon Nanotubes And Nanofibers Used Or Produced In Us Facilities, Kelly Fraser, Vamsi Kodali, Naveena Yanamala, M. Eileen Birch, Lorenzo Cena, Gary Casuccio, Kristin Bunker, Traci L. Lersch, Douglas E. Evans, Aleksandr Stefaniak, Mary Ann Hammer, Michael L. Kashon, Theresa Boots, Tracy Eye, John Hubczak, Sherri A. Friend, Matthew Dahm, Mary K. Schubauer-Berigan, Katelyn Siegrist, David Lowry, Alison K. Bauer, Linda M. Sargent, Aaron Erdely

Public Health Sciences Faculty Publications

Background Carbon nanotubes and nanofibers (CNT/F) have known toxicity but simultaneous comparative studies of the broad material class, especially those with a larger diameter, with computational analyses linking toxicity to their fundamental material characteristics was lacking. It was unclear if all CNT/F confer similar toxicity, in particular, genotoxicity. Nine CNT/F (MW #1-7 and CNF #1-2), commonly found in exposure assessment studies of U.S. facilities, were evaluated with reported diameters ranging from 6 to 150 nm. All materials were extensively characterized to include distributions of physical dimensions and prevalence of bundled agglomerates. Human bronchial epithelial cells were exposed to the nine …


Develop A High-Throughput Screening Method To Identify C-P4h1 (Collagen Prolyl 4-Hydroxylase 1) Inhibitors From Fda-Approved Chemicals, Shike Wang, Kuo-Hao Lee, Nathália Victoria Araujo, Chang-Guo Zhan, Vivek M. Rangnekar, Ren Xu Sep 2020

Develop A High-Throughput Screening Method To Identify C-P4h1 (Collagen Prolyl 4-Hydroxylase 1) Inhibitors From Fda-Approved Chemicals, Shike Wang, Kuo-Hao Lee, Nathália Victoria Araujo, Chang-Guo Zhan, Vivek M. Rangnekar, Ren Xu

Pharmaceutical Sciences Faculty Publications

Collagen prolyl 4-hydroxylase 1 (C-P4H1) is an α-ketoglutarate (α-KG)-dependent dioxygenase that catalyzes 4-hydroxylation of proline on collagen. C-P4H1-induced prolyl hydroxylation is required for proper collagen deposition and cancer metastasis. Therefore, targeting C-P4H1 is considered a potential therapeutic strategy for collagen-related cancer progression and metastasis. However, no C-P4H1 inhibitors are available for clinical testing, and the high content assay is currently not available for C-P4H1 inhibitor screening. In the present study, we developed a high-throughput screening assay by quantifying succinate, a byproduct of C-P4H-catalyzed hydroxylation. C-P4H1 is the major isoform of collagen prolyl 4-hydroxylases (CP4Hs) that contributes the majority prolyl 4-hydroxylase …


Aluminum Reproductive Toxicity: A Summary And Interpretation Of Scientific Reports, Robert A. Yokel Sep 2020

Aluminum Reproductive Toxicity: A Summary And Interpretation Of Scientific Reports, Robert A. Yokel

Pharmaceutical Sciences Faculty Publications

Publications addressing aluminum (Al)-induced reproductive toxicity were reviewed. Key details were compiled in summary tables. Approximate systemic Al exposure, a measure of bioavailability, was calculated for each exposure, based on the Al percentage in the dosed Al species, Al bioavailability, and absorption time course reports for the exposure route. This was limited to laboratory animal studies because no controlled-exposure human studies were found. Intended Al exposure was compared to unintended dietary Al exposure. The considerable and variable Al content of laboratory animal diets creates uncertainty about reproductive function in the absence of Al. Aluminum-induced reproductive toxicity in female mice and …


Effect Of Botulinum Toxin Injection On Asymmetric Lower Face And Chin Deviation, Dongwook Kim, Ju-Hyun Park, Vittorio Favero, James Mah, Young-Soo Jung, Seong Taek Kim Jul 2020

Effect Of Botulinum Toxin Injection On Asymmetric Lower Face And Chin Deviation, Dongwook Kim, Ju-Hyun Park, Vittorio Favero, James Mah, Young-Soo Jung, Seong Taek Kim

Dental Medicine Faculty Publications

The purpose of this study was to compare the efficacy of botulinum toxin (BoNT) in masseter muscle reduction depending on the amount of chin deviation. Exploring distinctive effects of BoNT relative to the characteristics of facial asymmetry will aid in planning and predicting treatment outcomes. Sixteen adult volunteers were classified into two groups according to the degree of menton deviation observed in posteroanterior cephalograms. Eight had a menton deviation of 3 mm or more and the other eight had less than 3 mm. A total of 25 Units of BoNT was injected into the unilateral masseter muscle of the prominent …


Association Of Long-Term Consumption Of Repeatedly Heated Mix Vegetable Oils In Different Doses And Hepatic Toxicity Through Fat Accumulation, Gul Ambreen, Afshan Siddiq, Kashif Hussain Apr 2020

Association Of Long-Term Consumption Of Repeatedly Heated Mix Vegetable Oils In Different Doses And Hepatic Toxicity Through Fat Accumulation, Gul Ambreen, Afshan Siddiq, Kashif Hussain

Department of Biological & Biomedical Sciences

Background: Hepatic diseases are one of the chief reasons for worldwide morbidity and mortality. The increased incidence in Asian countries is driving researchers to explore preventive ways from nature. It is more practical to go with healthy routine edibles like vegetable oils to avoid environmental and chemical hepatic injuries. With the use of thermally oxidized oils overproduction of reactive oxygen species (ROS) with overwhelmed cellular antioxidants defense system results in oxidative stress, the known cause of cardiovascular diseases (CVDs), cancers and neurodegenerative disorders. Little is investigated about the effect of daily used oxidized cooking oils on hepatic function changes with …


Hexavalent Chromium-Induced Cytotoxicity And Mutagenicity: A Study Of Protection By Ascorbic Acid And Epigallocatechin Gallate, Timothy P. Mayotte Jul 2019

Hexavalent Chromium-Induced Cytotoxicity And Mutagenicity: A Study Of Protection By Ascorbic Acid And Epigallocatechin Gallate, Timothy P. Mayotte

Honors Program Projects

Hexavalent chromium, or Cr(VI), is a potent oxidizer and known carcinogen, that is found at varying levels in the water sources of more than 200 million Americans. However, the exact mechanism of carcinogenicity remains unknown, and though the government currently regulates total chromium levels, they have yet to determine a permissible exposure limit for Cr(VI). Moreover, there is currently no preventative treatment for Cr(VI). Because of Cr(VI)’s strong oxidative power, we hypothesized that it causes DNA mutation and cell death via oxidation and that antioxidants could prevent this from occurring. To test this, we first assessed the viability of human …


The Effects Of Heart Medication On The Heart Rates Of Drosophila Melanogaster, Felicia A. Baer May 2018

The Effects Of Heart Medication On The Heart Rates Of Drosophila Melanogaster, Felicia A. Baer

Honors Program Projects

Background

Current animal models of human cardiac disease may be similar in anatomy and physiology but are often expensive and tedious to work with. The current need is for a model organism that is more efficient to work with in the lab but that still provides an accurate model of human cardiac disease. Drosophila melanogaster (D. mel) is such a candidate. While 74% of the genes coding for protein are conserved between D. mel and human hearts, it is unknown if cardiac medication used in humans, such as atropine and propranolol hydrochloride, similarly affect heart rate. I hypothesized that …


Regulation Of Radioactive Fracking Waste, Elizabeth Ann Glass Geltman, Nichole Leclair Jan 2018

Regulation Of Radioactive Fracking Waste, Elizabeth Ann Glass Geltman, Nichole Leclair

Publications and Research

Natural gas extracted form shale reached record production totals in 2015 in the United States and the US Energy Information Administration (EIA) forecasts natural gas production will continue to increase. Wastes from shale gas extraction can contain the radioactive isotopes radium-226 (Ra-226) and radium-228 (Ra-228), which decay further into radon (Rn). Exposure to radon, a form of naturally occurring radioactive materials (NORM), is the leading cause of lung cancer in the United States, after smoking. This article explores how states handle the disposal of technologically enhanced naturally occurring radioactive materials (TENORM) and/or NORM waste from oil and gas operations to …


9-Aminoacridine Inhibits Ribosome Biogenesis And Synergizes With Cytotoxic Drugs To Induce Selective Killing Of P53-Deficient Cells, Leonid Anikin, Dimitri G Pestov Dec 2017

9-Aminoacridine Inhibits Ribosome Biogenesis And Synergizes With Cytotoxic Drugs To Induce Selective Killing Of P53-Deficient Cells, Leonid Anikin, Dimitri G Pestov

Rowan-Virtua School of Osteopathic Medicine Faculty Scholarship

Common cancer treatments target rapidly dividing cells and do not discriminate between cancer and normal host cells. One approach to mitigating negative side‐effects of cancer treatment is to temporarily arrest cell cycle progression and thus protect normal cells during cytotoxic treatments, a concept called cyclotherapy. We recently proposed that transient inhibition of post‐transcriptional steps of ribosome biogenesis (RBG) can be used to selectively arrest p53‐positive host cells and not p53‐null cancer cells. In this study, we investigated whether cytoprotective RBG inhibition can be achieved through small molecule treatment.


Inhibition Of Post-Transcriptional Steps In Ribosome Biogenesis Confers Cytoprotection Against Chemotherapeutic Agents In A P53-Dependent Manner, Russell T Sapio, Anastasiya N Nezdyur, Matthew Krevetski, Leonid Anikin, Vincent J Manna, Natalie Minkovsky, Dimitri G Pestov Aug 2017

Inhibition Of Post-Transcriptional Steps In Ribosome Biogenesis Confers Cytoprotection Against Chemotherapeutic Agents In A P53-Dependent Manner, Russell T Sapio, Anastasiya N Nezdyur, Matthew Krevetski, Leonid Anikin, Vincent J Manna, Natalie Minkovsky, Dimitri G Pestov

Rowan-Virtua School of Osteopathic Medicine Faculty Scholarship

The p53-mediated nucleolar stress response associated with inhibition of ribosomal RNA transcription was previously shown to potentiate killing of tumor cells. Here, we asked whether targeting of ribosome biogenesis can be used as the basis for selective p53-dependent cytoprotection of nonmalignant cells. Temporary functional inactivation of the 60S ribosome assembly factor Bop1 in a 3T3 cell model markedly increased cell recovery after exposure to camptothecin or methotrexate. This was due, at least in part, to reversible pausing of the cell cycle preventing S phase associated DNA damage. Similar cytoprotective effects were observed after transient shRNA-mediated silencing of Rps19, but not …


The Effect Of Target-Specific Biomolecules In Breast Cancer, Mohannad Garoub Jun 2017

The Effect Of Target-Specific Biomolecules In Breast Cancer, Mohannad Garoub

FIU Electronic Theses and Dissertations

Cancer is the second leading cause of mortality in the United States and the World, therefore, early effective prevention, diagnosis, and therapy is needed. Estrogens play a major role in the initiation and progression of breast cancer. Elevated lifetime exposure to estrogens is associated with an increased risk of developing breast cancer. Estrogens through influencing mitochondria contribute to estrogen induced breast carcinogenesis; however, the exact mitochondrial mechanisms underlying the estrogen carcinogenic effect in breast tissue are not clearly understood. For this dissertation, the mitotoxic and cytotoxic effects of triphenylphosphonium cation (TPP) and Origanum majorana organic extract (OME) as well as …


Stability Of Synthetic Cathinones In Oral Fluid Samples, Briana Miller, Jiyoung Kim, Marta Concheiro May 2017

Stability Of Synthetic Cathinones In Oral Fluid Samples, Briana Miller, Jiyoung Kim, Marta Concheiro

Publications and Research

Synthetic cathinones are new stimulant drugs derived from cathinone that have been sold as “legal highs” worldwide. These compounds can elicit powerful effects such as delusions, hallucinations as well as other potentially dangerous behavior. New analogs with varying effects and potencies are constantly introduced in the market to evade legislation, and they are not detected by routine screening and confirmation methods. Oral fluid is an alternative matrix of increasing interest in forensic toxicology. Its collection is non-invasive and easily supervised, and positive drug findings typically reflect recent drug exposure. The focus of this research was to develop a method for …


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 Jan 2017

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 …


Aluminum And Phthalates In Calcium Gluconate: Contribution From Glass And Plastic Packaging, Robert A. Yokel, Jason M. Unrine Jan 2017

Aluminum And Phthalates In Calcium Gluconate: Contribution From Glass And Plastic Packaging, Robert A. Yokel, Jason M. Unrine

Pharmaceutical Sciences Faculty Publications

Introduction: Aluminum contamination of parenteral nutrition solutions has been documented for three decades. It can result in elevated blood, bone, and whole body aluminum levels associated with neurotoxicity, reduced bone mass and mineral content, and perhaps hepatotoxicity. The primary aluminum source among parenteral nutrition components is glass-packaged calcium gluconate, in which aluminum concentration the past three decades has averaged~ 4000 [mu]g/L, compared to < 200 [mu]g/L in plastic container-packaged calcium gluconate. A concern about plastic packaging is leaching of plasticizers, including phthalates, which have the potential to cause endocrine (male reproductive system) disruption and neurotoxicity.

Methods: Aluminum was quantified in samples collected periodically over more than two years from three calcium gluconate sources used to prepare parenteral nutrition solutions; two packaged in glass (from France and the US) and one in plastic …


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 Nov 2016

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 …


Aneuploidy: A Common And Early Evidence-Based Biomarker For Carcinogens And Reproductive Toxicants., Daniele Mandrioli, Fiorella Belpoggi, Ellen K Silbergeld, Melissa J. Perry Oct 2016

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 Oct 2016

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 chemicals, …


4,4’-Dichlorodiphenyltrichloroethane (Ddt) And 4,4’-Dichlorodiphenyldichloroethylene (Dde) Promote Adipogenesis In 3tl1 Adipocyte Cell Culture, J Kim, Q Sun, Y Yue, Kyong-Sup Yoon, K -Y Whang, J M. Clark, Y Park Jun 2016

4,4’-Dichlorodiphenyltrichloroethane (Ddt) And 4,4’-Dichlorodiphenyldichloroethylene (Dde) Promote Adipogenesis In 3tl1 Adipocyte Cell Culture, J Kim, Q Sun, Y Yue, Kyong-Sup Yoon, K -Y Whang, J M. Clark, Y Park

SIUE Faculty Research, Scholarship, and Creative Activity

4,4’-Dichlorodiphenyltrichloroethane (DDT), a chlorinated hydrocarbon insecticide, was extensively used in the 1940s and 1950s. DDT is mainly metabolically converted into 4,4’- dichlorodiphenyldichloroethylene (DDE). Even though most countries banned DDT in the 1970s, due to the highly lipophilic nature and very stable characteristics, DDT and its metabolites are present ubiquitously in the environment, including food. Recently, there are publications on relationships between exposure to insecticides, including DDT and DDE, and weight gain and altered glucose homeostasis. However, there are limited reports regarding DDT or DDE and adipogenesis, thus we investigated effects of DDT and DDE on adipogenesis using 3T3-L1 preadipocytes. Treatment …


Effect Of Bisphenol-A On Neurodevelopment In Drosophila Melanogaster Larvae, Alexandra M. Streifel May 2016

Effect Of Bisphenol-A On Neurodevelopment In Drosophila Melanogaster Larvae, Alexandra M. Streifel

All College Thesis Program, 2016-2019

This paper examines the effects of the chemical preservative bisphenol-A on the developing nervous systems of Drosophila melanogaster, or fruit fly, larvae. This study examines the effects of bisphenol-A using both behavioral as well as morphological paradigms. It was determined that bisphenol-A significantly increased the amount of time larvae spent in seeking behavior, the number of peristaltic contractions, and the distance traveled in a linear fashion. In the morphological analysis, indications of increased dendritic area in experimental larvae existed, but there was not enough data to determine significance. For future research, it is recommended that more data be gathered to …


The Emergence Of Systematic Review In Toxicology, Martin L. Stephens, Kellyn Betts, Nancy Beck, Vincent Cogliano, Kay Dickersin, George Gray, +8 Additional Authors May 2016

The Emergence Of Systematic Review In Toxicology, Martin L. Stephens, Kellyn Betts, Nancy Beck, Vincent Cogliano, Kay Dickersin, George Gray, +8 Additional Authors

Environmental and Occupational Health Faculty Publications

The Evidence-based Toxicology Collaboration hosted a workshop on “The Emergence of Systematic Review and Related Evidence-based Approaches in Toxicology,” on November 21, 2014 in Baltimore, Maryland. The workshop featured speakers from agencies and organizations applying systematic review approaches to questions in toxicology, speakers with experience in conducting systematic reviews in medicine and healthcare, and stakeholders in industry, government, academia, and non-governmental organizations. Based on the workshop presentations and discussion, here we address the state of systematic review methods in toxicology, historical antecedents in both medicine and toxicology, challenges to the translation of systematic review from medicine to toxicology, and thoughts …