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Persistent neuropathy and hyperkeratosis from distant arsenic exposure.
Beth A Baker1, Andrew R Topliff, Rita B Messing
1Occupational and Environmental Medicine, Regions Medical Center, 640 Jackson St, St. Paul, MN 55101, USA. beth.a.baker@healthpartners.com
Journal of Agromedicine
|May 17, 2006
Summary
Long-term arsenic exposure from well water can cause nerve damage (polyneuropathy) and skin lesions. Some individuals showed symptoms 28 years after acute toxic exposure, highlighting the lasting health effects of environmental contaminants.
Area of Science:
- Environmental Health
- Toxicology
- Neurology
Background:
- Assesses long-term health effects of acute arsenic exposure from contaminated well water.
- Investigates sequelae in individuals exposed via drinking water sourced from a landfill with arsenical pesticides.
Observation:
- Follow-up study included 10 of 13 individuals from an initial cohort.
- Seven cohort members underwent interviews, physical examinations, and sensory nerve testing (sNCT).
- Medical records and questionnaire data were collected for all participants and deceased individuals.
Findings:
- A minority of subjects (3/7) exhibited sensory complaints and electrodiagnostic findings consistent with polyneuropathy 28 years post-exposure.
- Two patients showed hyperkeratotic lesions, and one had hyperpigmentation, both indicative of arsenic toxicity.
- Nerve conduction threshold evaluations revealed subclinical neuropathic changes in some exposed individuals.
Implications:
- Arsenic exposure can lead to persistent neurological deficits and dermatological manifestations.
- Environmental contamination poses significant long-term public health risks.
- Highlights the importance of monitoring environmental toxins and their chronic health impacts.