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Updated: Dec 27, 2025
09:36
Primary Cultures of Rat Astrocytes and Microglia and Their Use in the Study of Amyotrophic Lateral Sclerosis
Published on: June 23, 2022
3.8K
Hypothesis: amyotrophic lateral sclerosis and environmental pollutants
Michael Swash1,2, Andrew Eisen3
1Barts and The London School of Medicine, Queen Mary University of London and Royal London Hospital, London, UK.
Muscle & Nerve
|March 6, 2020
Summary
Environmental pollutants may contribute to amyotrophic lateral sclerosis (ALS) development. Early and lifelong exposure, combined with genetic factors and increased lifespan, could explain disease incidence variations.
Area of Science:
- Neuroscience
- Environmental Health
Background:
- Amyotrophic lateral sclerosis (ALS) etiology involves genetic, epigenetic, and environmental factors.
- The disease's historical context is linked to the Industrial Revolution.
Observation:
- ALS incidence correlates with increasing longevity, but this association is incomplete.
- Industrial activity has led to increased environmental pollutant exposure over time.
Findings:
- Exposure to environmental pollutants, particularly in early life and throughout a lifetime, is proposed as a significant factor in ALS causation.
- The interplay of genetic mutations, pollutant exposure, and increased life expectancy may explain global and regional ALS incidence variations.
Implications:
- This hypothesis suggests a modifiable environmental component in ALS pathogenesis.
- Focused epidemiological studies are needed to test the link between pollutant exposure and ALS, using the Bradford Hill criteria.
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