A special kind of nose cell may trigger allergic reactions

https://www.newscientist.com/article/2230541-a-special-kind-of-nose-cell-may-trigger-allergic-reactions/

Close up of woman nose

We don’t know why some people who have allergies lose their sense of smell

Ruslan Nassyrov / Alamy Stock Photo

Mice have tens of thousands of chemical sensing nose cells that can cause an allergic reaction. Researchers say this discovery could help us understand how the immune system reacts to inhaled allergens and why some people with allergies lose their sense of smell.

We know that in humans and mice, breathing in allergens such as house dust mite droppings or mould can cause inflammation in the nose. This triggers a further allergic response driven by immune cells, but we …