Question

what is the difference between allergen and histamine?​

Answer 1

Explanation:

They're chemicals your immune system makes. Histamines act like bouncers at a club. They help your body get rid of something that's bothering you -- in this case, an allergy trigger, or "allergen." Histamines start the process that hustles those allergens out of your body or off your skin.

Answer 2

Hllergen

• An allergen is a sort of antigen that triggers an overly aggressive immune response in which the immune system defends the body against a perceived danger that would otherwise be innocuous. Allergies are the term for such responses.
• In scientific terms, an allergen is an antigen that can cause a type-I hypersensitivity reaction in atopic people by triggering immunoglobulin E (IgE) responses.
• Most people only produce strong Immunoglobulin E responses in reaction to parasite illnesses.

Histamine?

• Histamine is a nitrogenous organic molecule that regulates gastrointestinal physiological function and acts as a neurotransmitter in the brain, spinal cord, and uterus.
• Histamine has been classified as a local hormone (autocoid) since its discovery in 1910 since it lacks the typical endocrine glands that release it; nonetheless, histamine has recently been identified as a central neurotransmitter.
• Histamine is a primary mediator of itching and is implicated in the inflammatory response.
• Histamine is created by basophils and mast cells in surrounding connective tissues in response to invading infections as part of the immune response.