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Environmental signaling: a biological context for endocrine disruption
A O Cheek1, P M Vonier, E Oberdörster
1Tulane-Xavier Center for Bioenvironmental Research, New Orleans, LA, USA.
Environmental Health Perspectives
|April 16, 1998
Summary
Chemicals mimicking estrogen can disrupt normal signaling, potentially impacting health. This review examines how diverse compounds interact with estrogen pathways, affecting physiological responses in organisms.
Area of Science:
- Environmental Science
- Endocrinology
- Toxicology
Background:
- Organisms use chemical signals for environmental response.
- Sensitivity to signals can lead to vulnerability to environmental contaminants (xenobiotics).
Purpose of the Study:
- To review how various chemicals interact with steroid-like signaling pathways, particularly estrogen.
- To compare different chemical groups for their estrogenic activity and mechanisms.
Main Methods:
- Comparative analysis of bioavailability, metabolism, receptor interaction, and cell-signaling pathway interaction.
- Review of structurally diverse chemical groups: steroids, phytoestrogens, and synthetic chemicals.
Main Results:
- Numerous compounds exhibit estrogenic activity.
- Structural diversity influences bioavailability, metabolism, and receptor/pathway interactions.
- Mechanisms of action vary among chemical groups.
Conclusions:
- Chemicals that mimic steroid hormones can interfere with biological systems.
- These steroid mimics may be linked to adverse health trends in humans and animals.