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Alergeno

Reacción positiva a...Reacción positiva a un alergeno

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Definición

Es una sustancia que puede provocar una reacción alérgica. En algunas personas, el sistema inmunitario considera a los alérgenos como "extraños" o "peligrosos". Como resultado, el sistema inmunitario reacciona haciendo un anticuerpo llamado inmunoglobulina E (IgE) para defenderse en contra del alérgeno. Esta reacción provoca los síntomas de alergia.

Información

Los alérgenos comunes incluyen:

Caspa y proteínas de animales
Polvo
Medicamentos (como antibióticos o medicamentos que se aplican sobre la piel)
Alimentos (como huevo, maní, leche, nueces, soya, pescado, carne de animal y trigo)
Esporas fúngicas
Heces de insectos y ácaros
Piquetes y mordeduras de insectos (su veneno)
Látex de hule natural
Polen

Referencias

Stewart GA, Robinson C. The structure and function of allergens. In: Burks AW, Holgate ST, O'Hehir RE, et al, eds. Middleton's Allergy: Principles and Practice. 9th ed. Philadelphia, PA: Elsevier; 2020:chap 26.

Programe una cita

Actualizado : 2/2/2023

Versión en inglés revisada por : Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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