allergenic extract


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.

extract

 [ek´strakt]
a concentrated preparation of a vegetable or animal drug.
allergenic extract an extract of allergenic components from a crude preparation of an allergen, such as weed, grass, or tree pollen, molds, house dust, or animal dander, used for diagnostic skin testing or for immunotherapy for allergy.
cell-free extract the solution obtained by rupturing cells and removing all particulate matter.

al·ler·gen·ic ex·tract

extract (usually containing protein) from various sources, for example, pollen, dust, mold, insect venom, food, containing the immunogenic or allergenic compounds; may be used for skin testing or desensitization.
Synonym(s): allergic extract

al·ler·gen·ic ex·tract

(al'ĕr-jen'ik eks'trakt)
Extract (usually containing protein) from various sources (e.g., food, bacteria, pollen) suspected of stimulating manifestations of allergy; may be used for skin testing or desensitization.
Synonym(s): allergic extract.
References in periodicals archive ?
Serial dilution titration skin tests in inhalant allergy: A clinical quantitative assessment of biologic skin reactivity to allergenic extracts. Otolaryngol Clin North Am 1974;7(3):579-615.
Supply of allergenic extracts for in vivo diagnostics with accessories, as defined in Annex 1) Table Products~ Technical Specification and its related services in support of regional health in art.
Two examples of such codes are 95024 ("intracutaneous [intradermal] tests with allergenic extracts, immediate type reaction, including test interpretation and report by a physician, specify number of tests") and 95004 ("percutaneous tests [scratch, puncture, prick] with allergenic extracts, immediate type reaction, including test interpretation and report by a physician, specify number of tests").
The ELISA procedure involves binding of FDA-approved allergenic extracts to polystyrene microtiter plate wells; when serum is added to the wells, food-specified IgG will bind to fixed food allergen.