What Are the Signs of an Allergic Reaction to Pineapple?

Allergies that occur after eating pineapple or inhaling bromelain. The causative factor is the bromelain contained in pineapple, which can cause allergic reactions to those with specific systems. Onset often in childhood.

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Inhalation of the enzyme at work can show paroxysmal dyspnea, accompanied by wheezing, which lasts for several minutes to hours.

Bromelain is a soluble antigen-specific component that is presented by lymphocytes to specific IgE-type plasma cells, which stimulates antibodies produced when IgE antibodies (reactin) attach to mast cells. When bromelain re-enters the body, it acts as an antigen molecule Combined with two IgE bridges on sensitized mast cells or basophils, release histamine (H), eosinophil chemokine (ECF-A), neutrophil chemokine (NCF), allergic slow response substance (SRS-A), platelet aggregation factor (PAF), prostaglandin (PG), bradykinin and other bioactive substances, cause bronchial smooth muscle contraction and increased mucosal secretion, leading to asthma. The disease can be treated with bronchodilators to control acute attacks. Pineapple contains a kind of glycosides. After eating pineapple, it can stimulate oral mucosa, causing itching and tingling. Bromelain as a foreign protein can cause severe abdominal pain, vomiting, diarrhea, itching of the skin, measles, dyspnea, weak pulses, cyanosis, and decreased blood pressure. People with specific constitutions should avoid contact with allergens to prevent morbidity. Folk experience Soaking saltwater before eating pineapple can destroy bromelain. Broken pineapple is also destroyed after eating pineapple.