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Toxicology Commons

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Full-Text Articles in Toxicology

Examining The Regulatory Value Of Multi-Route Mammalian Acute Systemic Toxicity Studies, Troy Seidle, Pilar Prieto, Anna Bulgheroni Dec 2014

Examining The Regulatory Value Of Multi-Route Mammalian Acute Systemic Toxicity Studies, Troy Seidle, Pilar Prieto, Anna Bulgheroni

Troy Seidle, PhD

Regulatory information requirements for pesticides call for submission of acute systemic toxicity data for up to three different exposure routes (oral, dermal, inhalation) for both active ingredients and formulated products. Similar multi-route testing is required in the European Union and elsewhere for industrial chemicals. To determine the value of acute toxicity testing by more than one route, oral-dermal and oralinhalation concordances among regulatory classifications were examined for large data sets of chemicals and pesticide active ingredients. Across all sectors examined, oral acute toxicity classifications for pure active substances were more severe than those derived from dermal data in more than …


Cross-Sector Review Of Drivers And Available 3rs Approaches For Acute Systemic Toxicity Testing, Troy Seidle, Sally Robinson, Tom Holmes, Stuart Creton, Pilar Prieto, Julia Scheel, Magda Chlebus Dec 2014

Cross-Sector Review Of Drivers And Available 3rs Approaches For Acute Systemic Toxicity Testing, Troy Seidle, Sally Robinson, Tom Holmes, Stuart Creton, Pilar Prieto, Julia Scheel, Magda Chlebus

Troy Seidle, PhD

Acute systemic toxicity studies are carried out in many sectors in which synthetic chemicals are manufactured or used and are among the most criticized of all toxicology tests on both scientific and ethical grounds. A review of the drivers for acute toxicity testing within the pharmaceutical industry led to a paradigm shift whereby in vivo acute toxicity data are no longer routinely required in advance of human clinical trials. Based on this experience, the following review was undertaken to identify (1) regulatory and scientific drivers for acute toxicity testing in other industrial sectors, (2) activities aimed at replacing, reducing, or …


An Evaluation Of Mercury Concentrations In Three Brands Of Canned Tuna, Shawn Gerstenberger, Adam Martinson, Joanna Kramer Mar 2014

An Evaluation Of Mercury Concentrations In Three Brands Of Canned Tuna, Shawn Gerstenberger, Adam Martinson, Joanna Kramer

Shawn Gerstenberger

There is widespread concern over the presence of Hg in fish consumed by humans. While studies have been focused on determining the Hg concentration in sport fish and some commercial fish, little attention has been directed to canned tuna; it is widely held that concentrations are low. In the present study, the amount of Hg present in canned tuna purchased in Las Vegas, Nevada, USA, was examined, and the brand, temporal variation, type, and packaging medium impacts on Hg concentrations in tuna were explored. A significant (p < 0.001) brand difference was noted: Brand 3 contained higher Hg concentrations ($\bar x$ …


Books Published, Ashraf Mozayani Feb 2014

Books Published, Ashraf Mozayani

Ashraf Mozayani, Ph.D., PharmD

No abstract provided.