A recent study has shown that scratching mosquito bites activates an immune response that helps protect against infections, particularly in mice. The researchers discovered that when mice scratched the area affected by an allergen, it led to heightened inflammation and the recruitment of immune cells called neutrophils. However, when scratching was limited with the use of Elizabethan collars, the inflammation was reduced. This study offers new insights into the molecular mechanisms behind the satisfaction of scratching and suggests an immune protective role inherent to the act.
The findings indicate scratching activates an immune response that protects the skin against infections, providing a molecular basis for the satisfaction of scratching.
Scratching might help alleviate some forms of skin irritation, as it results in the recruitment of immune cells, which can aid in managing inflammation.
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