The impulse of itching may have evolved for the reason, but we struggled to identify the reason.
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Forget what your parents have told you, it may be good for you to increase itching with itching by increasing your body’s defense against bacteria.
Scratch is a paradoxical phenomenon. Running your nails on itching skin can be a good thing.
To delve into this binary method, Dan Kaplan and his colleagues at Pittsburg University, Pennsylvania, and his colleagues have caused eczema -like symptoms in mouse ears.
The mouse ears that could hurt the will -expanded, containing more inflammatory cells called neutrophils -it helps our body infection -reaching the ears. More than the person wearing a collar to stop.
To see how this scratch is affecting the skin, researchers have investigated what is happening in cells. They found that neurons, which detect pain and pain, release chemicals known as material P, activating leukocytes called mast cells, and promoting the body to generate more neutral spheres. did.
“It indicates that scratching acts are really important in enhancing the behavior of mast cells,” says Holly Wilkinson, a British University.
The team also discovered that the amount of scratching would decrease. Staphylococcus aureusBacteria that are commonly involved in skin infections of the skin of the mouse. This microorganisms can cause many dermatitis that appears as dermatitis. “A 24 -hour scratch is enough to change the microbiomes in a way that can be measured.”
However, by activating mast cells, allergens cause inflammation routes, and in an eczema -like state, which is a type of dermatitis, the body effectively consumes skin inflammation. Is shown. Increased damage.
“It’s a good thing if you’re basically healthy and scratched,” says Wilkinson. “But if you have that turning point and you are too scratched, it can be negative.”
Kaplan says his team has performed a preliminary work that shows similar advantages from the people’s scratch.
topic:
(Tagstotrasslate) immune system
