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Articles 1 - 15 of 15
Full-Text Articles in Toxicology
Halogen Bonding Interactions Of Haloaromatic Endocrine Disruptors And The Potential For Inhibition Of Iodothyronine Deiodinases, Craig A. Bayse
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.
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
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, …
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
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/ …
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
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 …
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
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 …
9-Aminoacridine Inhibits Ribosome Biogenesis And Synergizes With Cytotoxic Drugs To Induce Selective Killing Of P53-Deficient Cells, Leonid Anikin, Dimitri G Pestov
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.
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
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 …
Extracorporeal Membrane Oxygenation (Ecmo) For Severe Toxicological Exposures: Review Of The Toxicology Investigators Consortium (Toxic)., G S. Wang, R Levitan, T J. Wiegand, Jennifer Lowry, R F. Schult, S Yin, Toxicology Investigators Consortium
Extracorporeal Membrane Oxygenation (Ecmo) For Severe Toxicological Exposures: Review Of The Toxicology Investigators Consortium (Toxic)., G S. Wang, R Levitan, T J. Wiegand, Jennifer Lowry, R F. Schult, S Yin, Toxicology Investigators Consortium
Manuscripts, Articles, Book Chapters and Other Papers
Although there have been many developments related to specific strategies for treating patients after poisoning exposures, the mainstay of therapy remains symptomatic and supportive care. One of the most aggressive supportive modalities is extracorporeal membrane oxygenation (ECMO). Our goal was to describe the use of ECMO for toxicological exposures reported to the American College of Medical Toxicology (ACMT) Toxicology Investigators Consortium (ToxIC). We performed a retrospective review of the ACMT ToxIC Registry from January 1, 2010 to December 31, 2013. Inclusion criteria included patients aged 0 to 89 years, evaluated between January 2010 through December 2013, and received ECMO for …
The Role Of Renal Replacement Therapy In The Management Of Pharmacologic Poisonings, Aibek E. Mirrakhimov, Aram Barbaryan, Adam Gray, Taha Ayach
The Role Of Renal Replacement Therapy In The Management Of Pharmacologic Poisonings, Aibek E. Mirrakhimov, Aram Barbaryan, Adam Gray, Taha Ayach
Internal Medicine Faculty Publications
Pharmacologic toxicities are common and range from mild to life-threatening. The aim of this study is to review and update the data on the role of renal replacement therapy (RRT) in the management of various pharmacologic poisonings. We aim to provide a focused review on the role of RRT in the management of pharmacological toxicities. Relevant publications were searched in MEDLINE with the following search terms alone or in combination: pharmacologic toxicity, hemodialysis, hemofiltration, renal replacement therapy, toxicology, poisonings, critical illness, and intensive care. The studies showed that a pharmacologic substance should meet several prerequisites to be deemed dialyzable. These …
Role Of The Calcium Plateau In The Neuronal Injury And Behavioral Morbidities Following Organophosphate Intoxication, Laxmikant S. Deshpande, Robert E. Blair, Kristin F. Phillips, Robert J. Delorenzo
Role Of The Calcium Plateau In The Neuronal Injury And Behavioral Morbidities Following Organophosphate Intoxication, Laxmikant S. Deshpande, Robert E. Blair, Kristin F. Phillips, Robert J. Delorenzo
Neurology Publications
Organophosphate (OP) chemicals include nerve agents and pesticides, and there is a growing concern of OP based chemical attacks against civilians. Current antidotes are essential in limiting immediate mortality associated with OP exposure. However, further research is needed to identify molecular mechanisms underlying long-term neurological deficits following survival of OP toxicity in order to develop effective therapeutics. We have developed rat survival models of OP induced status epilepticus (SE) that mimic chronic mortality and morbidity following OP intoxication. We have observed significant elevations in hippocampal calcium levels after OP SE that persisted for weeks following initial survival. Drugs inhibiting intracellular …
High Dose, Variable Length, N-Acetylcysteine (Hinac) Therapy For Late-Presenting Acetaminophen Poisoning, Jessica K. Eygnor Do, Suprina Dorai Md, Philip W. Moore Do, J Ward Donovan Md, Keith K. Burkhart Md
High Dose, Variable Length, N-Acetylcysteine (Hinac) Therapy For Late-Presenting Acetaminophen Poisoning, Jessica K. Eygnor Do, Suprina Dorai Md, Philip W. Moore Do, J Ward Donovan Md, Keith K. Burkhart Md
Department of Emergency Medicine
No abstract provided.
Overuse Of Antibiotics In Children For Upper Respiratory Infections (Uris): A Dilemma, Malika Taufiq, Rukhsana Wamiq Zuberi
Overuse Of Antibiotics In Children For Upper Respiratory Infections (Uris): A Dilemma, Malika Taufiq, Rukhsana Wamiq Zuberi
Department for Educational Development
No abstract provided.
Aluminium Phosphide Poisoning: A Case Report, Shela Akbar Ali Hirani, Arshalooz Rahman
Aluminium Phosphide Poisoning: A Case Report, Shela Akbar Ali Hirani, Arshalooz Rahman
School of Nursing & Midwifery
This paper reports the case of a family in which three children were presented at Emergency Room (ER) with poisoning after the use of a pesticide at home. Initially, the cases were managed as routine cases of organophosphorus poisoning; however, the death of two children made the health team members realise that the poison's effects were delayed and devastating. Later, the compound was identified as Aluminium Phosphide (ALP), and the life of the last surviving child in the family was saved.
The Status Of Childhood Lead Poisoning And Prevention In Nevada, Usa, Anne Rothweiler, Elena E. Cabb, Shawn Gerstenberger
The Status Of Childhood Lead Poisoning And Prevention In Nevada, Usa, Anne Rothweiler, Elena E. Cabb, Shawn Gerstenberger
Environmental & Occupational Health Faculty Publications
One of the first steps in addressing the problem of childhood lead poisoning is to identify the possible sources of exposure in specific communities and target high-risk populations with appropriate interventions. Due to several factors, such as lack of funding and lack of blood lead reporting, little information exists regarding the occurrence of childhood lead poisoning and the prevalence of potential exposure sources in the state of Nevada. Following the recent establishment of a Nevada-based Lead Poisoning Program, we compiled the most current information available on Nevadans, and use this knowledge to suggest future research objectives and outreach activities for …