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10:11
Whole-Body Nanoparticle Aerosol Inhalation Exposures
Published on: May 7, 2013
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Nanoparticle Exposure and Hormetic Dose-Responses: An Update.
Ivo Iavicoli1, Veruscka Leso2, Luca Fontana3
1Department of Public Health, University of Naples Federico II, 80131 Naples, Italy. ivo.iavicoli@unina.it.
International Journal of Molecular Sciences
|March 15, 2018
Summary
Hormesis, a beneficial adaptive response to stress, applies to nanomaterials. This review confirms hormesis is a generalized response to nanoparticle exposure, even at low doses.
Area of Science:
- Environmental Science
- Toxicology
- Nanotechnology
Background:
- Hormesis describes adaptive biological responses to environmental challenges.
- Nanomaterial production and use are increasing, raising concerns about low-dose exposure.
- Understanding nanoparticle toxicology is crucial for risk assessment.
Purpose of the Study:
- To review current knowledge on nanoparticle-induced biphasic dose-responses.
- To explore hormesis as a generalized response to nanomaterial exposure.
- To identify factors influencing nanoparticle hormesis.
Main Methods:
- Literature review of existing studies on nanoparticle hormesis.
- Analysis of evidence supporting biphasic dose-responses.
- Discussion of nanoparticle physico-chemical properties and their effects.
Main Results:
- Hormesis is confirmed as a generalized adaptive response to nanoparticle exposure.
- Biphasic dose-responses are observed across various nanomaterials.
- Nanoparticle properties influence these dose-response relationships.
Conclusions:
- Hormesis is a relevant concept for understanding low-dose nanoparticle effects.
- Molecular mechanisms and long-term effects require further investigation.
- Accurate nanomaterial risk assessment necessitates understanding low-dose exposure impacts.
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