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Oral Health Assessment by Lay Personnel for Older Adults
Published on: February 2, 2020
Qualitative and quantitative procedures for health risk assessment
1Department of Radiation Genetics and Chemical Mutagenesis, Medical Genetic Center South-West the Netherlands, Leiden University Medical Center, Wassenaarseweg 72, 2333 AL, Leiden, Netherlands. lohman@rullf2.medfac.leidenuniv.nl
Mutation Research
|October 13, 1999
Summary
Environmental electrophiles can cause cancer by damaging DNA. Understanding their mechanisms and ranking their mutagenic potency is key for risk assessment, though challenges remain in cancer prevention.
Area of Science:
- Environmental Health
- Toxicology
- Carcinogenesis
Background:
- Environmental and endogenous electrophiles are potent mutagens and ultimate carcinogens, directly interacting with DNA.
- Over 200 genotoxic tests exist to monitor human exposure, but intrinsic mutagenic potency often shows little variation among agents.
- Assessing cancer risk requires understanding not just genotoxicity but also the mechanism of DNA interaction.
Purpose of the Study:
- To explore quantitative risk assessment strategies for environmental and carcinogenic agents.
- To investigate the feasibility of ranking mutagenic potency for agents like DNA cross-linkers and mono-alkylating agents.
- To identify factors beyond genotoxicity that influence cancer risk and prevention.
Main Methods:
- Weight-of-evidence analysis of genotoxic test responses.
- Categorization of agents into DNA cross-linkers and mono-alkylating agents.
- Quantitative hazard ranking of mutagenic potency.
Main Results:
- A feasible approach for quantitative hazard ranking of mutagenic potency was demonstrated for specific agent groups.
- Ranking of mutagenic potency correlated with carcinogenic potency in rodents.
- Despite these advances, practical cancer prevention in the human population remains challenging.
Conclusions:
- Effective cancer risk assessment necessitates understanding DNA interaction mechanisms and agent potency.
- Cancer treatment, prevention of other diseases, and an aging population are critical factors influencing cancer mortality.
- Addressing these multifaceted issues is crucial for improving cancer prevention and reducing mortality.
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