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Pharmacology, Toxicology and Environmental Health Commons™
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Articles 1 - 5 of 5
Full-Text Articles in Pharmacology, Toxicology and Environmental Health
Molecular Measurement Of Toxicity In Fish; Case Examples And Policy Implications, Jessica A. Freedman
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 …
An Analysis Of The Use Of Animal Models In Predicting Human Toxicology And Drug Safety, Jarrod Bailey, Michelle Thew, Michael Balls
An Analysis Of The Use Of Animal Models In Predicting Human Toxicology And Drug Safety, Jarrod Bailey, Michelle Thew, Michael Balls
Jarrod Bailey, PhD
Animal use continues to be central to preclinical drug development, in spite of a lack of its demonstrable validity. The current nadir of new drug approvals and the drying-up of pipelines may be a direct consequence of this. To estimate the evidential weight given by animal data to the probability that a new drug may be toxic to humans, we have calculated Likelihood Ratios (LRs) for an extensive data set of 2,366 drugs, for which both animal and human data are available, including tissue-level effects and MedDRA Level 1–4 biomedical observations. This was done for three preclinical species (rat, mouse …
Neurotoxicity Of Two Related Organophosphates On Caenorhabditis Elegans, Collin M. Brown
Neurotoxicity Of Two Related Organophosphates On Caenorhabditis Elegans, Collin M. Brown
Honors Program Projects
Organophosphates are a class of toxicants that act by inhibiting the activity of acetylcholinesterase, an enzyme vital to normal neuronal activity. Dimethoate and omethoate are two organophosphates that are chemical "cousins" of one another. Omethoate is a metabolite, or byproduct of dimethoate decomposition, and is more toxicologically active than dimethoate. Both toxicants were applied to cultures of Caenorhabditis elegans to determine two qualities of the organophosphates: their relative toxicity and their cumulative effects. The toxicity of omethoate was found to be significantly higher than that of dimethoate. Omethoate was found to have a 144.4% more lethal toxicity than dimethoate, and …
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 …
Consequences Of Developmental Lead (Pb2+) Exposure On Reproductive Strategies In Drosophila, Elizabeth Kathleen Peterson
Consequences Of Developmental Lead (Pb2+) Exposure On Reproductive Strategies In Drosophila, Elizabeth Kathleen Peterson
Legacy Theses & Dissertations (2009 - 2024)
Anthropogenic lead (Pb) pollution is ubiquitous in the environment and a risk factor for both human and wildlife health. Pb exposure has the potential to alter reproductive strategies with respect to mate choice and reproductive output. This could be especially deleterious if these changes disrupt adaptive behavioral and reproductive life history strategies. Therefore, the overall aim of this body of work was to examine the consequences of developmental Pb exposure on reproductive strategies, using Drosophila melanogaster as a model system. In all experiments, D. melanogaster were reared from egg stage to adulthood in either control or leaded medium and were …