Determining the mechanisms of toxic action of phenols to Tetrahymena pyriformis.

Abstract:

:Phenols are environmentally important compounds that are widely used in agriculture and industry. Thus, phenols are of interest to environmental toxicologists, which has led to the development of several quantitative structure-activity relationship (QSAR) models. The most successful QSARs have been established for compounds having a common mechanism of toxic action (MOA). However, correctly determining the MOA of a compound is not easy. Discriminant analysis was used in this study to separate phenols by their MOAs. The working hypothesis of this study was that phenols with different MOAs lie in different regions in the response surface described by the ionization-corrected hydrophobicity descriptor, log D, the electrophilicity descriptor, ELUMO, and the interaction between hydrophobicity and electrophilicity, D * ELUMO. Results of discriminant analysis showed a total error rate of 15%. In addition, it was difficult to separate phenols that had a polar narcosis MOA from phenols that had a proelectrophile MOA.

journal_name

Environ Toxicol

journal_title

Environmental toxicology

authors

Ren S

doi

10.1002/tox.10040

keywords:

subject

Has Abstract

pub_date

2002-01-01 00:00:00

pages

119-27

issue

2

eissn

1520-4081

issn

1522-7278

journal_volume

17

pub_type

杂志文章