Allergen
hideAn allergen is a nonparasitic antigen capable of stimulating a type-I hypersensitivity reaction in atopic individuals.
Most humans mount significant Immunoglobulin E (IgE) responses only as a defense against parasitic infections. However, some individuals mount an IgE response against common environmental antigens. This hereditory predisposition is called atopy. In atopic individuals, non-parasitic antigens stimulate inappropriate IgE production, leading to type I hypersensitivity. Sensitivities vary from one person to another and it is possible to be allergic to an extraordinary range of substances.
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News tagged with allergens
Exposure to both traffic, indoor pollutants puts some kids at higher risk for asthma later
Nov 24, 2009 |
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New research presents strong evidence that the "synergistic" effect of early-life exposure to both outdoor traffic-related pollution and indoor endotoxin causes more harm to developing lungs than one or the other exposure ...
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Microbes help mothers protect kids from allergies
Dec 07, 2009 |
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A pregnant woman's exposure to microbes may protect her child from developing allergies later in life. Researchers in Marburg, Germany find that exposure to environmental bacteria triggers a mild inflammatory response in ...
Better education associated with improved asthma
Dec 17, 2009 |
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Individuals with more education suffer less from asthma. Researchers writing in BioMed Central's open access journal Respiratory Research have found that having less than 12 years of formal schooling is associated with w ...
Exposures to metals and diesel emissions in air linked to respiratory symptoms in children
Nov 23, 2009 |
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Exposure shortly after birth to ambient metals from residential heating oil combustion and particles from diesel emissions are associated with respiratory symptoms in young inner city children, according to a new study by ...
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