News tagged with allergy

Related topics: children · infectious diseases · immune system · vaccine · asthma

E-cigarettes: Not a healthy alternative to smoking

Caveat emptor – or "buyer beware" holds true when it comes to the unknown health effects of e-cigarettes. An article in the June issue of Annals of Allergy, Asthma & Immunology, the scientific journal of the American College ...

May 27, 2014
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Three little-known facts about indoor allergies

A yellow dusting of pollen might have you running for cover behind closed windows and doors. Not so fast. An allergist at The Ohio State University Wexner Medical Center says indoor allergens cause just as much trouble, and ...

May 14, 2014
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Has food allergy incidence risen in Australia?

(Medical Xpress)—In light of Food Allergy Week, Dr Robert Loblay, Sydney Medical School Immunologist and Director of the Allergy Unit at Royal Prince Alfred Hospital, has said that the incidence of food allergy has increased ...

May 13, 2014
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Drug therapy for allergy moves forward

Researchers have identified several target molecules which are suitable for the development of new allergy drugs. The Journal of Allergy and Clinical Immunology, the most prestigious journal in the field of allergology, has ...

May 12, 2014
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Food allergies in prison

Food allergy policies in America's jails and prisons are woefully inadequate and are a cause for alarm, says a University of Dayton sociologist.

May 06, 2014
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Asthma sufferers may be prone to bone loss

Some of the 26 million Americans with asthma may also be prone to bone loss. According to a study published today in the May issue of Annals of Allergy, Asthma & Immunology, the scientific journal of the American College ...

May 01, 2014
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Five things to know about seasonal allergies

Seasonal allergies are one of the most common medical problems in America, with around 20 percent of people affected. That means that if you do not personally have allergies, chances are a close relative or friend of yours ...

May 01, 2014
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Allergy is a disorder of the immune system often also referred to as atopy. Allergic reactions occur to normally harmless environmental substances known as allergens; these reactions are acquired, predictable, and rapid. Strictly, allergy is one of four forms of hypersensitivity and is called type I (or immediate) hypersensitivity. It is characterized by excessive activation of certain white blood cells called mast cells and basophils by a type of antibody known as IgE, resulting in an extreme inflammatory response. Common allergic reactions include eczema, hives, hay fever, asthma, food allergies, and reactions to the venom of stinging insects such as wasps and bees.

Mild allergies like hay fever are highly prevalent in the human population and cause symptoms such as allergic conjunctivitis, itchiness, and runny nose. Allergies can play a major role in conditions such as asthma. In some people, severe allergies to environmental or dietary allergens or to medication may result in life-threatening anaphylactic reactions and potentially death.

A variety of tests now exist to diagnose allergic conditions; these include testing the skin for responses to known allergens or analyzing the blood for the presence and levels of allergen-specific IgE. Treatments for allergies include allergen avoidance, use of anti-histamines, steroids or other oral medications, immunotherapy to desensitize the response to allergen, and targeted therapy.

This text uses material from Wikipedia, licensed under CC BY-SA

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