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 allergen
Milk is safe, even encouraged, for some children after treatment for milk allergy
Aug 18, 2009 |
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Some children with a history of severe milk allergy can safely drink milk and consume other dairy products every day, according to research led by the Johns Hopkins Children's Center and published in the Aug. 10 online edition ...
Top food scientist to target hidden fish allergens, pork, with new tests
Jun 29, 2009 |
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The odds of contracting mad cow disease from banned or adulterated bovine protein lurking in raw or processed food for humans or meat-bone meal for livestock have declined over the past decade. So have the ...
Why does eczema often lead to asthma?
May 19, 2009 |
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Many young children who get a severe skin rash develop asthma months or years later. Doctors call the progression from eczema, or atopic dermatitis, to breathing problems the atopic march. In this week's issue of PLoS Bi ...
Forget the Sprays: Roaches and Their Allergens Reduced in Schools Using IPM
May 05, 2009 |
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(PhysOrg.com) -- A North Carolina State University study shows that using integrated pest management (IPM) to control pests in public schools - monitoring closely for signs of pests and then utilizing baits and traps in areas ...
Spring into action against allergies
Apr 13, 2009 |
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It's spring allergy season, and many of you are ready to wave the white flag -- a wad of tissues, that is -- in surrender.
Malfunction of the respiratory epithelium is a cause of allergy?
Apr 03, 2009 |
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One reason for the development of allergy may be malfunction of the respiratory epithelium, which allows allergens to bind to, enter and travel through the epithelium. Two studies by Finnish research groups on this subject ...
Enzyme and vitamin define the yin and yang of asthma
Mar 29, 2009 |
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The allergen breathed in by a person with asthma triggers a proteinase or enzyme called MMP7 that activates a cascade of events to prompt an allergic reaction, said a consortium of researchers led by Baylor College of Medicine ...
