Here, we review the role of the histamine and hypocretin systems in sleep–wake modulation. Furthermore, we summarize the neuropathological changes to these two systems in narcolepsy and discuss ...

ON THIS PAGEHistamine and Chronic HivesHow to Follow a Low-Histamine DietWhat to Know Before You Try ItIf you have chronic ...

Histamine is a natural chemical that helps ... Allergies happen when your immune system overreacts to things such as pollen and mold. Your immune system might mistakenly think that these things ...

But your immune system sees them as a threat and responds ... Some people may be sensitive to that. "Histamine poisoning" can happen if you eat fish that weren't kept at safe temperatures and ...

The symptoms of histamine intolerance are similar to that of an allergic reaction and can affect multiple systems in the body. Diamine oxidase (DAO) is the enzyme that breaks down histamine in the ...

Histamine is an active substance found in a large range of living organisms that plays a major role in allergic reaction, dilating blood vessels and increasing the permeability of vessel walls.

The bacterial histamine then activates the gut immune system through histamine-4 receptor, which draws immune mast cells into the intestines. These activated mast cells produce even more histamine ...

Histamine is a chemical produced by the immune system, mostly by special cells called mast cells, whenever the body is exposed to foreign particles like dust, pollen, or pet dander, and it also ...

Much of the itching that we experience as humans is driven by activation of the histamine system. This system releases histamine as part of the body's reaction to things like mosquito bites ...