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A NICEATM webinar series on “Using Informatics to Improve Data Analysis of Chemical Screening Assays Conducted in Zebrafish” begins on February 2. This three-part webinar series will consider the issues of protocol variability in zebrafish screening studies and how some of these issues might be addressed by implementation of standardized nomenclature systems.
The webinars are free and open to the public, although registration is required to attend. The webinar series is being organized by NICEATM in support of the National Toxicology Program’s Systematic Evaluation of the Application of Zebrafish in Toxicology (SEAZIT) program. A link to registration, details about all webinars, and more information about SEAZIT can be found on the NICEATM website.
On December 20, 2016, the U.S. Environmental Protection Agency launched a voluntary pilot program to evaluate the usefulness and acceptability of a mathematical tool that estimates the toxicological classification of a chemical, and published guidance on how pesticide companies can submit data for the program. This program is another step toward EPA’s goal of reducing animal testing by adopting better testing methods, as described in the March 2016 Letter to Stakeholders issued by Office of Pesticide Programs Director Jack Housenger.
The mathematical tool, known as the GHS Mixtures Equation, is used in the Globally Harmonized System of Classification and Labeling of Chemicals (GHS). Use of the GHS Mixtures Equation can reduce animal use for oral and inhalation toxicity studies of pesticide formulations.
To evaluate the GHS Mixtures Equation, EPA requests submission of acute oral and acute inhalation toxicity study data paired with mathematical calculations (GHS Mixtures Equation data) to support the evaluation of pesticide product formulations. EPA expects that the pilot will run for approximately six months but will begin data analysis sooner if enough data is received.