Evaluation of an asymmetry parameter for curve-fitting in single-chemical and mixture toxicity assessment

DA Dawson, N Genco, HM Bensinger, D Guinn… - Toxicology, 2012 - Elsevier
… experimental mixture toxicity against the combined effect model(s) selected. … mixture
toxicity testing and data analysis protocols used, removal of the minimum effect parameter

Reproducibility of binary‐mixture toxicity studies

N Cedergreen, P Kudsk, SK Mathiassen… - … and Chemistry: An …, 2007 - Wiley Online Library
… Binary-mixture studies often … -mixture toxicity experiments in terms of deviation from the
reference model of concentration addition (CA), dose-level dependence, and isobole asymmetry. …

Modeling the toxicity of pollutants mixtures for risk assessment: a review

M Sigurnjak Bureš, M Cvetnić, M Miloloža… - Environmental chemistry …, 2021 - Springer
mixture toxicity and clarify the interaction between mixture components. The risk assessment
of mixtures … impact the mixture toxicity (such as multiple chemicals, species, mechanisms of …

A random effects model for binary mixture toxicity experiments

H Sørensen, N Cedergreen, JC Streibig - Journal of Agricultural, Biological …, 2010 - Springer
… been used, eg one allowing for asymmetry or hormesis (increase in response at … mixtures
the CA assumption corresponds to a straight line isobole, whereas our model has a parameter

Modeling of pharmaceuticals mixtures toxicity with deviation ratio and best-fit functions models

M Wieczerzak, B Kudłak, G Yotova… - Science of the Total …, 2016 - Elsevier
… is the effective concentration of the mixture predicted by any one of … mixture obtained from
toxicity testing. The Observed values in this study are calculated as a mean of toxicity mixtures

An isobole-based statistical model and test for synergism/antagonism in binary mixture toxicity experiments

H Sørensen, N Cedergreen, IM Skovgaard… - … and Ecological Statistics, 2007 - Springer
… For example, the degree of asymmetry in the third example was not reproducible in three …
the interaction parameters are easily converted to the sum of toxic units for a 50:50%-mixture, …

Time-dependence in mixture toxicity prediction

DA Dawson, EMG Allen, JL Allen, HJ Baumann… - Toxicology, 2014 - Elsevier
… the standard four-parameter logistic function (which employed the minimum … parameter but
not the asymmetry parameter) and suggested that changes in slope, asymmetry, and toxicity

Equations for estimating binary mixture toxicity: 3-methyl-2-butanone with a series of electrophiles

DA Dawson, TW Schultz - Plos one, 2024 - journals.plos.org
… -derived analyses, and the slope and asymmetry values for the two mixture toxicity
models used in this study are publicly available from the OSF repository (https://osf.io/2nvdw/). …

Measuring and modelling mixture toxicity of imidacloprid and thiacloprid on Caenorhabditis elegans and Eisenia fetida

JL Gomez-Eyles, C Svendsen, L Lister, H Martin… - Ecotoxicology and …, 2009 - Elsevier
toxicity of multicomponent mixtures reasonably, interactions may limit the predictive capability
when a few compounds dominate a mixture. … to a full range of mixtures of the similar acting …

Hormesis in mixtures—Can it be predicted?

RG Belz, N Cedergreen, H Sørensen - Science of the total environment, 2008 - Elsevier
… are to be viewed as a true low concentration phenomenon of many toxicants, then this study
represents a first step towards an incorporation of hormesis into mixture-toxicity evaluations. …