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Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...
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High Content Screening Analysis to Evaluate the Toxicological Effects of Harmful and Potentially Harmful Constituents (HPHC)
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Bias in toxicology.

Birgitte Wandall1, Sven Ove Hansson, Christina Rudén

  • 1Department of Philosophy and the History of Technology, Royal Institute of Technology (KTH), Teknikringen 78 B, 100 44, Stockholm, Sweden. birgitte.wandall@infra.kth.se

Archives of Toxicology
|March 16, 2007
PubMed
Summary

Bias significantly impacts toxicological research and testing, potentially skewing results. More empirical studies are needed to understand and address bias in toxicology.

Area of Science:

  • Toxicology
  • Research Integrity
  • Scientific Methodology

Background:

  • Bias, defined as systematic deviation from the truth, poses a substantial risk in toxicological research and standardized testing.
  • The prevalence and impact of bias in toxicology are largely unknown due to a scarcity of empirical investigations.

Purpose of the Study:

  • To identify major potential sources of bias in toxicological research and testing.
  • To highlight areas requiring empirical study regarding bias in toxicology.
  • To advocate for prioritizing investigations into bias in toxicological research.

Main Methods:

  • Literature review and conceptual analysis to identify potential sources of bias.
  • Discussion of the implications of bias in toxicological data.

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  • Identification of research gaps concerning bias in toxicology.

    • Main Results:

    • Several major potential sources of bias in toxicological research and testing have been identified.
    • A significant lack of empirical data exists regarding the prevalence and impact of bias in the field.
    • Specific areas for future empirical research on bias in toxicology have been outlined.

    Conclusions:

    • Bias is a substantial concern in toxicology, necessitating focused research efforts.
    • Prioritizing empirical studies on bias is crucial for ensuring the reliability and validity of toxicological findings.
    • Further investigation is required to quantify and mitigate bias in toxicological research and testing.