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erik [133]
3 years ago
14

What is histamine and what is its role in allergic reactions

Biology
1 answer:
never [62]3 years ago
3 0
As part of an immune response to foreign pathogens, histamine is produced by basophils and by mast cells found in nearby connective tissues. Histamine increases the permeability of the capillaries to white blood cells and some proteins, to allow them to engage pathogens in the infected tissues
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