Alergeno

Definición

Un alergeno es una sustancia que puede provocar una reacción alérgica. En algunas personas, el sistema inmunitario considera a los alergenos "extraños" o "peligrosos". Esto es lo que lleva a que se presenten síntomas de alergias.

Información

Los alergenos comunes abarcan:

  • Caspa y proteínas de animales
  • Bacterias y virus
  • Químicos
  • Polvo
  • Fármacos (como antibióticos o medicamentos que se aplican sobre la piel)
  • Alimentos (como la leche, el chocolate, las frambuesas y el trigo)
  • Perfumes
  • Plantas
  • Polen
  • Humo

Figures

Reacción positiva a un alergeno

Referencias

Wasserman SI. Approach to the patient with allergic or immunologic disease. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 257.

Revision

Last reviewed 1/13/2013 by David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.

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