Browsing Original publications by Descriptor calculation software "TSAR 3.3"

Showing items 1-6 of 6

Aptula, A.O.; Netzeva, T.I.; Valkova, I.V.; Cronin, M.T.D.; Schultz, T.W.; Kühne, R.; Schüürmann, G. Multivariate Discrimination between Modes of Toxic Action of Phenols. Quant. Struct.-Act. Relat. 2002, 21, 1, 12–22.

Published: Villu Ruusmann (2012-05-23)

Abstract: A set of 221 phenols, for which toxicity data to the ciliate Tetrahymena pyriformis were available, was subjected to stepwise linear discriminant analysis (LDA) in order to classify their toxic mechanisms of action. The compounds were a priori grouped into the following four mechanisms according to structural rules: polar narcotics, weak acid respiratory ...

Dataset
Cronin, M.T.D.; Aptula, A.O.; Duffy, J.C.; Netzeva, T.I.; Rowe, P.H.; Valkova, I.V.; Schultz, T.W. Comparative assessment of methods to develop QSARs for the prediction of the toxicity of phenols to Tetrahymena pyriformis. Chemosphere 2002, 49, 10, 1201–1221.

Published: Villu Ruusmann (2012-05-23)

Abstract: Quantitative structure-activity relationships (QSARs) for the toxicity of 200 phenols to the ciliated protozoan Tetrahymena pyriformis, and the validation of the QSARs using a test set of a further 50 compounds, are reported. The phenols are structurally heterogeneous and represent a variety of mechanisms of toxic action including polar narcosis, weak acid ...

Regression
Hewitt, M.; Madden, J.C.; Rowe, P.H.; Cronin, M.T.D. Structure-based modelling in reproductive toxicology: (Q)SARs for the placental barrier. SAR QSAR Environ. Res. 2007, 18, 57-76.

Published: Sam Belfield (2024-03-07)

Abstract: The replacement of animal testing for endpoints such as reproductive toxicity is a long-term goal. This study describes the possibilities of using simple (quantitative) structure-activity relationships ((Q)SARs) to predict whether a molecule may cross the placental membrane. The concept is straightforward, if a molecule is not able to cross the placental ...

Toxicokinetics Regression
Netzeva, T.I.; Aptula, A.O.; Chaudary, S.H.; Duffy, J.C.; Schultz, T.W.; Schüürmann, G.; Cronin, M.T.D. Structure-Activity Relationships for the Toxicity of Substituted Poly-hydroxylated Benzenes to Tetrahymena pyriformis: Influence of Free Radical Formation. QSAR Comb. Sci. 2003, 22, 6, 575–582.

Published: Villu Ruusmann (2012-05-23)

Abstract: The aim of this study was to develop quantitative structure-activity relationships for the toxicity to Tetrahymena pyriformis of 30 substituted poly-hydroxylated benzenes. Physico-chemical descriptors for the expression of free radical formation, associated with the OH moiety on the aromatic ring, were calculated. These included one-electron equilibrium constants ...

Regression
Schultz, T.W.; Cronin, M.T.D.; Netzeva, T.I.; Aptula, A.O. Structure-Toxicity Relationships for Aliphatic Chemicals Evaluated with Tetrahymena pyriformis. Chem. Res. Toxicol. 2002, 15, 12, 1602–1609.

Published: Villu Ruusmann (2012-05-23)

Abstract: Quantitative structure-activity relationships were developed for the toxicity data of 500 aliphatic chemicals tested in the two-day Tetrahymena pyriformis population growth impairment assay. These chemicals represented a number of structural classes spanning a variety of mechanisms of toxic action including narcoses and electrophilic mechanisms. A series of ...

Regression
Schultz, T.W.; Netzeva, T.I.; Roberts, D.W.; Cronin, M.T.D. Structure-Toxicity Relationships for the Effects to Tetrahymena pyriformis of Aliphatic, Carbonyl-Containing, α,β-Unsaturated Chemicals. Chem. Res. Toxicol. 2005, 18, 2, 330–341.

Published: Villu Ruusmann (2012-05-23)

Abstract: Toxicity data for 82 aliphatic chemicals with an alpha,beta-unsaturated substructure were compiled. Toxicity was assessed in the 2-day Tetrahymena pyriformis population growth impairment assay. Toxic potency [log(IGC50(-1))] for most of these chemicals was in excess of baseline narcosis as quantified by the 1-octanol/water partition coefficient (log K(ow)). ...

Regression

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