Assessment of mechanisms driving non-linear dose–response relationships in genotoxicity testing

M Guerard, M Baum, A Bitsch, G Eisenbrand… - … Research/Reviews in …, 2015 - Elsevier
In genetic toxicology, risk assessment has traditionally adopted linear dose–responses for
any compound that causes genotoxic effects. Increasing evidence of non-linear dose …

A template wizard for the cocreation of machine-readable data-reporting to harmonize the evaluation of (nano) materials

N Jeliazkova, E Longhin, N El Yamani… - Nature protocols, 2024 - nature.com
Making research data findable, accessible, interoperable and reusable (FAIR) is typically
hampered by a lack of skills in technical aspects of data management by data generators …

Estimation of safe dietary intake levels of acrylamide for humans

RG Tardiff, ML Gargas, CR Kirman, ML Carson… - Food and Chemical …, 2010 - Elsevier
Acrylamide (AA), a human neurotoxicant and rat tumorigen, is produced in starchy foods
when cooked. AA is also an industrial chemical used in polyacrylamide production. A safety …

Derivation of point of departure (PoD) estimates in genetic toxicology studies and their potential applications in risk assessment

GE Johnson, LG Soeteman‐Hernández… - Environmental and …, 2014 - Wiley Online Library
Genetic toxicology data have traditionally been employed for qualitative, rather than
quantitative evaluations of hazard. As a continuation of our earlier report that analyzed ethyl …

Quantitative interpretation of genetic toxicity dose‐response data for risk assessment and regulatory decision‐making: current status and emerging priorities

PA White, AS Long, GE Johnson - Environmental and Molecular …, 2020 - Wiley Online Library
The screen‐and‐bin approach for interpretation of genotoxicity data is predicated on three
false assumptions: that genotoxicants are rare, that genotoxicity dose–response functions do …

Quantitative approaches for assessing dose–response relationships in genetic toxicology studies

BB Gollapudi, GE Johnson… - Environmental and …, 2013 - Wiley Online Library
Genetic toxicology studies are required for the safety assessment of chemicals. Data from
these studies have historically been interpreted in a qualitative, dichotomous “yes” or “no” …

Structures of covalent adducts between DNA and ochratoxin A: a new factor in debate about genotoxicity and human risk assessment

PG Mantle, V Faucet-Marquis… - Chemical Research …, 2010 - ACS Publications
The potent renal carcinogenicity of ochratoxin A (OTA) in rats, principally in the male, raises
questions about mechanism. Chromatographic evidence of DNA adducts after 32P …

Mammalian Cell HPRT Gene Mutation Assay: Test Methods

GE Johnson - Genetic Toxicology: Principles and Methods, 2012 - Springer
Using the combination of bacterial gene mutation assay and chromosomal aberrations test
in mammalian cells may not detect a small proportion of mammalian specific mutagenic …

[HTML][HTML] Comparison of the transgenic rodent mutation assay, error corrected next generation duplex sequencing, and the alkaline comet assay to detect dose-related …

JP Bercu, S Zhang, Z Sobol, PA Escobar, P Van… - … /Genetic Toxicology and …, 2023 - Elsevier
Abstract N-Nitrosodiethylamine (NDEA), a well-studied N-nitrosamine, was tested in rats to
compare the dose-response relationship of three genotoxicity endpoints. Mutant/mutation …

Microbiota-derived genotoxin tilimycin generates colonic stem cell mutations

L Pöltl, M Kitsera, S Raffl, S Schild, A Cosic… - Cell Reports, 2023 - cell.com
The DNA-alkylating metabolite tilimycin is a microbial genotoxin. Intestinal accumulation of
tilimycin in individuals carrying til+ Klebsiella spp. causes apoptotic erosion of the epithelium …