An introduction to environmental neurotoxicology: Lessons from a clinical perspective

Area of Science:

• Environmental Neurotoxicology
• Clinical Neurology
• Toxicology

Background:

• 1992 National Academy of Sciences report emphasized identifying neurotoxic substances and assessing risks.
• Clinical neurological considerations were noted as lacking despite prior neurotoxic syndrome outbreaks.
• Physicians were recommended to take thorough occupational and toxic exposure histories.

Purpose of the Study:

• To review environmental neurotoxicology with a clinical and practical approach.
• To analyze demonstrative cases of neurotoxic syndromes and their environmental links.
• To discuss the future of Environmental Neurotoxicology (ENT) in light of diffuse contamination and emerging concerns.

Main Methods:

• Defined keywords: Environment, Neurotoxicology, Neurotoxicants.
• Presented demonstrative clinical cases (e.g., Epidemic Neuropathy in Cuba, Minamata disease, ALS/PDC on Guam).
• Reviewed environments containing neurotoxicants, exposure routes, and clinical presentations.

Main Results:

• Highlighted the role of environmental factors in various neurotoxic syndromes.
• Discussed the impact of diffuse chemical contamination, including air pollution, endocrine disruptors, and nanoparticles.
• Expressed concern over knowledge gaps regarding non-monotonic kinetics, chemical mixtures, low-dose exposures, and delayed neurodegenerative disease onset.

Conclusions:

• Clinical and practical approaches are crucial in Environmental Neurotoxicology.
• Diffuse chemical contamination poses significant questions about human brain health.
• Further research is needed on complex exposure scenarios and their long-term neurological consequences.