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Records with
- Keyword = adverse outcome pathway.
Records 1 to
25
of 824
2026
How Model Organisms and Model Uncertainty Impact Our Understanding of the Risk of Sublethal Impacts of Toxicants to Survival and Growth of Ecologically Relevant Species
(JOURNAL) [Published : Aug 22, 2024]
(JOURNAL) [Published : Aug 22, 2024]
Understanding how sublethal impacts of toxicants affect population-relevant outcomes for organisms is challenging. We tested the hypotheses that the well-known sublethal impacts of methylmercury (MeHg) and a polychlorinated biphenyl (PCB126) would have meaningful impacts on cohor...
Inhibition of Fin Regeneration in Fathead Minnow (Pimephales promelas) by a Potent Synthetic Glucocorticoid, and Development of Adverse Outcome Pathway 334
(JOURNAL) [Published : May 20, 2025]
(JOURNAL) [Published : May 20, 2025]
Despite structural and functional conservation across vertebrate species, the glucocorticoid receptor has been minimally studied in comparison to other biological targets for endocrine-disrupting compounds in aquatic systems. Because prolonged use of pharmaceutical glucocorticoid...
A Novel Constrained Drop Surfactometer Demonstrates Inhibition of Lung Surfactant Function by PFAS Aerosols In Vitro
(JOURNAL) [Published : Feb 01, 2026]
(JOURNAL) [Published : Feb 01, 2026]
Per- and polyfluoroalkyl substances (PFAS) are ubiquitous in both indoor and outdoor air, and there is increasing need to effectively screen this diverse class of chemicals for inhalation toxicity potential. Since PFAS have strong surface-active properties, we hypothesized they m...
The thyroid hormone system disrupting potential of resorcinol in fish
(JOURNAL) [Published : Sep 04, 2024]
(JOURNAL) [Published : Sep 04, 2024]
Environmental pollutants capable of interfering with the thyroid hormone (TH) system increasingly raise concern for both human and environmental health. Recently, resorcinol has received attention as a compound of concern due to its endocrine disrupting properties. It is a known ...
2025
Adverse Outcome Pathway (AOP) Coaching Program—How it functions and contributes to a more harmonized approach to AOP development and construction of AOP networks with regulatory utility
(JOURNAL) [Published : Jul 08, 2025]
(JOURNAL) [Published : Jul 08, 2025]
The Adverse Outcome Pathway (AOP) framework contributes to understanding of how specific and measurable biological perturbations cause adverse effects on human and environmental health. Recognizing the value of AOPs to support regulatory decisions around the world, the Organisati...
EPA AOP-DB version 2 updates
(DATA/SOFTWARE) [Published : May 09, 2021]
(DATA/SOFTWARE) [Published : May 09, 2021]
Here we present an updated version of the database, which includes an increased number of adverse outcomes and corresponding key events derived from updated feeds from the AOP-Wiki (https://aopwiki.org/), updated chemical, gene, tissue, disease information, as well as population-...
Enhancing the EPA Adverse Outcome Pathway Database (AOP-DB): Recent Updates and Sematic Integration
(PRESENTATION) [Presented : Mar 19, 2020]
(PRESENTATION) [Presented : Mar 19, 2020]
There is a need for more efficient use of existing data to characterize human toxicological response data for environmental chemicals of interest to the US Environmental Protection Agency (EPA). The Adverse Outcome Pathway (AOP) framework helps to organize existing mechanistic in...
Connecting ToxCast to the AOP Framework to Support Assay Interpretation and Data Use
(PRESENTATION) [Presented : Jun 05, 2025]
(PRESENTATION) [Presented : Jun 05, 2025]
Presentation for the Environmental Health Language Collaborative (EHLC) Adverse Outcome Pathway (AOP) Standards workshop, held virtually on June 4-5, 2025. The workshop will center on ways to improve the computability of Adverse Outcomes Pathways (AOPs) through a range of approac...
Fin Regeneration: An Example of ORD Response to State Needs
(PRESENTATION) [Presented : Jun 26, 2025]
(PRESENTATION) [Presented : Jun 26, 2025]
In 2017 the Wisconsin DNR reported observation of a high incidence of fish with fin erosion in Newton Creek, which originates near the site of the local oil refinery and flows approximately 2 miles through the city of Superior before discharging at the Hog Island Inlet of the Sup...
Advancing the Computability of AOPs through the AOP-Wiki: Updates on AOP-Wiki Releases 2.7 and 2.8
(PRESENTATION) [Presented : Jul 24, 2025]
(PRESENTATION) [Presented : Jul 24, 2025]
An adverse outcome pathway (AOP) is an analytical framework used to organize biomechanistic information linking molecular-level exposure events to downstream adverse outcomes, important for regulatory decision-making. The AOP-Wiki is a globally accessible user interface for the A...
Proteomic and behavioral alterations following developmental emamectin benzoate exposure in rats – Effects in development and adulthood
(PRESENTATION) [Presented : Mar 23, 2023]
(PRESENTATION) [Presented : Mar 23, 2023]
Proteomic and behavioral alterations following developmental emamectin benzoate exposure in rats – effects in development and adulthood
Emily M. Pitzer1, Tracey E. Beasley1, Garyn L. Jung1, Kathy L. McDaniel1, William T. Padgett1, Witold M. Winnik1, David W. Herr1
1Neurolog...
Per- and polyfluoroalkyl substance (PFAS) aerosols inhibit lung surfactant function: estimation of aerosol deposition and effect of carbon chain length.
(PRESENTATION) [Presented : Mar 20, 2025]
(PRESENTATION) [Presented : Mar 20, 2025]
Background and Purpose:
Lung surfactant (LS) critically impacts respiration by creating an air-liquid interface that reaches near-zero surface tension (ST) during compression. Inhibition of LS function is a molecular initiating event in an adverse outcome pathway resulting in dec...
Endocrine Disruption and Reproductive Pathology
(PAPER IN NON-EPA PROCEEDINGS) [Published : Dec 01, 2019]
(PAPER IN NON-EPA PROCEEDINGS) [Published : Dec 01, 2019]
Original submitted abstract for Symposium: Male reproductive impairments, such as hypospadias, cryptorchidism and reduced sperm counts, are relatively common and have reportedly been increasing in prevalence over the last several decades. These effects can be induced in laborator...
Adverse Outcome Pathways for Developmental Toxicity Gleaned from the Embryological Literature: A Rich and Rutted Road
(PRESENTATION) [Presented : Jul 01, 2020]
(PRESENTATION) [Presented : Jul 01, 2020]
An Adverse Outcome Pathway (AOP) is a framework for organizing knowledge about the etiology of an adverse phenotypic outcome. AOPs include a Molecular Initiating Event (MIE) and downstream Key Events (KEs) leading to an adverse outcome. Completion of the sequence depends on Key E...
Proteomic Changes in Primary Rat Cortical Cultures following Acute exposure to Triethyltin Bromide (TET)
(PRESENTATION) [Presented : Mar 23, 2023]
(PRESENTATION) [Presented : Mar 23, 2023]
There is a need to develop quick and sensitive chemical screening workflows such as utilization of in vitro new approach methods (NAMs) to reduce the number of animals used and increase efficiency to make informed decisions before proceeding to in vivo testing for neurotoxicity (...
Dipentyl phthalate induces multinucleated germ cells and reduces testosterone in the rat fetal testis with a similar dose-response
(PRESENTATION) [Presented : Mar 19, 2020]
(PRESENTATION) [Presented : Mar 19, 2020]
Phthalic acid esters (phthalates) are male reproductive toxicants that exert their most potent toxicity during a window of sensitivity in fetal development. In the fetal rat, exposure to phthalates reduces testosterone biosynthesis, alters the development of seminiferous cords, a...
Towards an Understanding of Synthetic Glucocorticoid Hazards in Aquatic Systems
(PRESENTATION) [Presented : Jan 29, 2025]
(PRESENTATION) [Presented : Jan 29, 2025]
Though estrogenic and androgenic contaminants have received extensive attention as endocrine disrupting and modulating chemicals causing water quality concerns, glucocorticoid agonism has been receiving increasing attention in aquatic systems. Of particular interest are synthetic...
Ecotoxicology Knowledgebase (ECOTOX) Interoperability with AOP Wiki and Other Resources
(PRESENTATION) [Presented : Aug 16, 2023]
(PRESENTATION) [Presented : Aug 16, 2023]
The ECOTOXicology Knowledgebase (ECOTOX) has been locating and curating ecologically-relevant toxicity data for over 30 years and is now a nationally and internationally recognized source of single-chemical toxicity test results for aquatic and terrestrial organisms. Through deca...
Application of Bioinformatics for Species Extrapolation in Regulatory Decision-making as an International Collaboration
(PRESENTATION) [Presented : Oct 25, 2023]
(PRESENTATION) [Presented : Oct 25, 2023]
The global regulatory landscape surrounding chemical safety is shifting away from animal testing and moving toward greater reliance on New Approach Methodologies (NAMs) including a rapid growth in molecular data and computational methods to achieve human and environmental protect...
Update from the Society for the Advancement of Adverse Outcome Pathways
(PRESENTATION) [Presented : Jun 30, 2023]
(PRESENTATION) [Presented : Jun 30, 2023]
No abstract required for this meeting.
Practical Application of Effects-based Markers for Estrogenicity: Surveillance of US Rivers
(PRESENTATION) [Presented : Jun 20, 2023]
(PRESENTATION) [Presented : Jun 20, 2023]
No abstract for this meeting
Introduction to the International Consortium to Advance Cross-Species Extrapolation
(PRESENTATION) [Presented : Mar 22, 2022]
(PRESENTATION) [Presented : Mar 22, 2022]
The global regulatory landscape surrounding chemical safety is shifting away from animal testing and moving toward greater reliance on New Approach Methodologies (NAMs) including a rapid growth in molecular data and computational methods to achieve human and environmental protect...
Cross-Species Extrapolation: Opportunities in a 21st-Century Regulatory Nonanimal Testing World
(PRESENTATION) [Presented : Mar 31, 2022]
(PRESENTATION) [Presented : Mar 31, 2022]
Regulatory decisions surrounding chemical safety are based primarily, although not exclusively, on human and environmental protection. Historically, there has been a reliance on animal toxicity testing to inform hazard and risk assessment. Typically, mammalian data drive human he...
Sars-CoV-2 antagonism of Interferon (IFN)-I antiviral response leading to infection proliferation
(PRESENTATION) [Presented : Jul 08, 2021]
(PRESENTATION) [Presented : Jul 08, 2021]
Viral protein interactions with host proteins in humans and other organisms are important for the transmission of SARS-CoV2. Understanding each step of the process by which host proteins interact with the viral proteins in severe acute respiratory syndrome coronavirus 2 (SARS-CoV...
Defining the Biologically Plausible Taxonomic Domain of Applicability Can Enhance the Utility of an Adverse Outcome Pathway for Understanding Apis and Non-Apis Bee Health
(PRESENTATION) [Presented : Jun 07, 2023]
(PRESENTATION) [Presented : Jun 07, 2023]
Apis bee health has gained significant attention due to the increases in colony death and failure. Chemical stressors, such as neonicotinoid insecticides, along with non-chemical stressors contribute to impact on colonies. In addition to the concern surrounding Apis bee populatio...