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Microplastics Trigger Allergic Reactions in Lungs
1 Jun
Summary
- Inhaled microplastics can linger in lungs for over 14 days.
- These particles trigger inflammation linked to allergic responses.
- PET microplastics actively influence immune responses to allergens.
Microplastic particles, commonly found in the environment, have been detected in mouse lungs for a minimum of two weeks following inhalation. This prolonged presence is associated with significant airway inflammation.
The study identified an increase in lymphocytes and eosinophils, immune cells crucial in allergic reactions. These microplastics were found to actively modulate the body's immune system. When PET microplastics were combined with ragweed pollen, a known allergen, the resulting inflammation intensified.
Scientists noted that PET microplastics do not merely reside in the body but actively impact immune responses. This indicates potential immunological consequences, with further research being essential to understand real-world human exposure and effects.
