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Pseudoallergy, sometimes known as nonallergic hypersensitivity, is a type of hypersensitivity reaction mostly described in the context of drug allergy.The mechanism is somewhat similar to the type 1 hypersensitivity in the Gell and Coombs classification in that the effector cell is also mast cell.
[1] [2] Common antigens include molds, bacteria, bird droppings, bird feathers, agricultural dusts, bioaerosols and chemicals from paints or plastics. [3] People affected by this type of lung inflammation ( pneumonitis ) are commonly exposed to the antigens by their occupations, hobbies, the environment and animals.
Hypersensitivity reactions are idiosyncratic reactions to a drug. [1] Although the term NSAID was introduced to signal a comparatively low risk of adverse effects, [2] NSAIDs do evoke a broad range of hypersensitivity syndromes. These syndromes have recently been classified by the European Academy of Allergy and Clinical Immunology Task Force ...
A patch test (contact delayed hypersensitivity allergy test) [17] is a commonly used examination to determine the exact cause of an allergic contact dermatitis. According to the American Academy of Allergy, Asthma, and Immunology, "patch testing is the gold standard for contact allergen identification". [2]
1,2,6-Hexanetriol is a trivalent alcohol with two primary and one secondary hydroxy group. It is similar to glycerol in many respects and is used as a substitute for glycerol in many applications due to its more advantageous properties, such as higher thermal stability and lower hygroscopicity .
1,6-Hexanediol is an organic compound with the formula (CH 2 CH 2 CH 2 OH) 2. It is a colorless water-soluble solid. [3] History and synthesis.
True wheat allergies are very rare; it is estimated to effect 0.1%-2.2% of individuals depending on region. [60] The allergy does not commonly persist into adolescence. Gluten-free foods are safer for wheat allergic patients but they still may theoretically contain wheat's other allergenic proteins. [61]
Low humidity from air conditioning was found to be the most common cause of physical irritant contact dermatitis. [3] To the lay person a definition of low humidity being a physical irritant can be confusing because low humidity is a deficit (or absence) of an elemental substance, whereas all other irritants implicated in contact dermatitis are in concentrations of relative abundance.