What is required for the validation of in vitro assays for predicting contaminant relative bioavailability? Considerations and criteria

Juhasz, AL; Basta, NT; Smith, E

HERO ID

2064145

Reference Type

Journal Article

Year

2013

Language

English

PMID

23725856

HERO ID 2064145
In Press No
Year 2013
Title What is required for the validation of in vitro assays for predicting contaminant relative bioavailability? Considerations and criteria
Authors Juhasz, AL; Basta, NT; Smith, E
Journal Environmental Pollution
Volume 180
Page Numbers 372-375
Abstract A number of studies have shown the potential of in vitro assays to predict contaminant in vivo relative bioavailability in order to refine human health exposure assessment. Although the term ‘validated’ has been used to describe the goodness of fit between in vivo and in vitro observations, its misuse has arisen from semantic considerations in addition to the lack of defined criteria for establishing performance validation. While several internal validation methods may be utilised, performance validation should preferably focus on assessing the agreement of model predictions with a set of data which are independent of those used to construct the model. In order to achieve robust validated predictive models, a number of parameters (e.g. size of data set, source of independent soils, contaminant concentration range, animal model, relative bioavailability endpoint) need to be considered in addition to defined criteria for establishing performance validation which are currently lacking.
Doi 10.1016/j.envpol.2013.05.008
Pmid 23725856
Wosid WOS:000322425300048
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English
Keyword Bioaccessibility; Bioavailability; Correlation; Human health risk assessment; Validation