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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.

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Allergies Blog

About Allergies Blog. Put something about you here by editing the right ... Allergies Blog is owned by 1800blogger which is a (for) profit organization. ...www.allergiesblog.net/

Allergies -- Allergy Blog

Allergies are more common than ever, affecting up to 1 in 3 people. ... Free Allergies Newsletter! Sign Up. Discuss in my Forum. Allergies Blog ...allergies.about.com/b/

Kids Food Allergies Blog

... Allergy Blog. ModernAllergyMom. My Kids Have Food Allergies ... Kids Food Allergies Blog is proudly powered by WordPress. Entries (RSS) and Comments (RSS) ...kidsfoodallergiesblog.com/

Food Allergies - Food Allergy - Food Allergy Symptoms Blog

What do you want to know about food allergies? ... The Blog Please Don't Pass the Nuts Allergizer Allergy Moms Allerjeez!Peanut Free Mama ...foodallergies.about.com/b/

achoo! The Blog. Allergy Relief News and Tips

The first and only blog about allergies and allergy relief. ... blog is maintained by AchooAllergy.com, a leading retailer of allergy relief ...www.achooallergy.com/blog/

Wikipedia About Allergies

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.

Classification and history

The concept of "allergy" was originally introduced in 1906 by the Viennese pediatrician Clemens von Pirquet, after he noted that some of his patients were hypersensitive to normally innocuous entities such as dust, pollen, or certain foods. Pirquet called this phenomenon "allergy" from the Greek words allos meaning "other" and ergon meaning "work". Historically, all forms of hypersensitivity were classified as allergies, and all were thought to be caused by an improper activation of the immune system. Later, it became clear that several different disease mechanisms were implicated, with the common link to a disordered activation of the immune system. In 1963, a new classification scheme was designed by Philip Gell and Robin Coombs that described four types of hypersensitivity reactions, known as Type I to Type IV hypersensitivity. With this new classification, the word "allergy" was restricted to only type I hypersensitivities (also called immediate hypersensitivity), which are characterized as rapidly developing reactions.

A major breakthrough in understanding the mechanisms of allergy was the discovery of the antibody class labeled immunoglobulin E (IgE) - Kimishige Ishizaka and co-workers were the first to isolate and describe IgE in the 1960s.

Many allergens such as dust or pollen are airborne particles. In these cases, symptoms arise in areas in contact with air, such as eyes, nose and lungs. For instance, allergic rhinitis, also known as hay fever, causes irritation of the nose, sneezing, and itching and redness of the eyes. Inhaled allergens can also lead to asthmatic symptoms, caused by narrowing of the airways (bronchoconstriction) and increased production of mucus in the lungs, shortness of breath (dyspnea), coughing and wheezing.

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News about Allergies

Whitby walk to raise awareness about allergies and asthma

Whitby This WeekWHITBY -- Runners will be hitting the pavement for the annual Triple A Run/Walk this month to raise awareness about allergies and asthma. The event is hosted by the Asthma/Allergy Information...http://newsdurhamregion.com/article/125836

Folic acid may alleviate allergies and asthma

14 WFIE EvansvilleA new study shows folic acid might help people with allergies and asthma.http://www.14wfie.com/global/story.asp?s=10323409

Your Dog's Battle With Allergies

KKCO Grand JunctionAs temperatures warm up, allergies flare up, but we're not the only ones suffering. For a lot of people allergy season is a real pain. But there is a smaller group that is often overlooked, your pets.http://www.nbc11news.com/home/headlines/44565467.html

Got allergies? The worst is yet to come

The Salt Lake TribunePollen » A stuffy nose, watery eyes and a pounding headache. These days, you may suspect H1N1 swine flu. But what's making you miserable is more likely seasonal allergies -- specifically tree pollen, and if you're like most sufferers, the worst will come later this monthhttp://www.sltrib.com/news/ci_12315802?source=rss

Low Folate May Be Linked to Allergies

WebMDEarly research suggests that low folate levels may be linked to an increased risk for allergy and asthma, but more study is needed to confirm the association.http://www.webmd.com/allergies/news/20090508/low-folate-may-...

News about Allergies

City decides bees have their place

News RegisterThey would prohibit beekeeping altogether within 300 feet of anyone with certified bee sting allergies. Beekeepers would be required to submit an application to the city, which would notify properties within 300 feet. That would allow anyone with a ... http://www.newsregister.com/node/22558

Learning to live with allergies and asthma

Morning SunAllergies and asthma affect the lives of one out of every four Americans, according to the American Academy of Allergy and Asthma Immunology. For the many that suffer from these conditions, there is hope. Learning what the conditions are, how to ... http://www.themorningsun.com/articles/2008/10/09/life/srv000...

Taking Cordarone for short time not an option -study

HealthCentral.comBut because it can cause allergies, liver, lung and other health problems, the researchers said they wanted to see if cutting time on the drug could help. This was not the case, Isabelle Van Gelder of the University of Groningen in the Netherlands and ... http://www.healthcentral.com/heart-disease/news-271929-66.ht...

Breathe easy: you can take control of allergies

Beacon NewsNasal allergies can cause a variety of symptoms including sneezing, congestion, runny nose, post-nasal drip, and itching. Eyes can be affected as well, leading to itching, tearing and redness. The condition goes by many names including allergic ... http://www.suburbanchicagonews.com/beaconnews/lifestyles/120...

Food safety minute: Avoidance is the only way to prevent food ...

Sauk Valley Daily GazetteThere has been much discussion about food allergies lately. From newspaper articles to documentaries, food allergies are receiving much-needed attention in the media. Although food allergies are frequently discussed, many people still have unanswered ... http://www.saukvalley.com/articles/2008/10/09/features/food/...

Search results for Allergies

Allergies

Your eyes itch, your nose is running, you're sneezing, and you're covered in hives. The enemy known as allergies has struck again.http://www.kidshealth.org/teen/diseases_conditions/allergies...

Allergy Symptoms

If you have allergies, the time at which you take your allergy medication may make a big difference. http://www.webmd.com/allergies/guide/allergy-symptoms

Allergies

What Are Allergies? Why Do I Have Allergies? Testing For Allergies How Do Allergies Develop?http://www.coolnurse.com/allergies.htm

Allergies: Things You Can Do to Control Your Symptoms

You have an allergy when your body overreacts to things that don't cause problems for most people. These things are called allergens. Your body's overreaction to the allergens is ... http://familydoctor.org/online/famdocen/home/common/allergie...

MedlinePlus Medical Encyclopedia: Allergies

Illustrated guide, includes causes, symptoms, and treatments. Learn about different tests used to find allergens.http://www.nlm.nih.gov/medlineplus/ency/article/000812.htm
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Dining with Food Allergies

Dining with Food AllergiesDining with Food AllergiesFlash - Video

What are Allergies and Asthma?

What are Allergies and Asthma?An allergy is when your immune system reacts to something as if it would do your body harm. Common allergens include pollens, foods, mold, dust, feathers, pet dander, insect...Flash - Video

Dead Sea Salt Skin Care Products Be...

Dead Sea Salt Skin Care Products Benefits for Skin Allergieshttp://www.deadseamineral.com/DeadSeaHelpsSkinDisorders.asp Here are the benefits of Dead Sea Mineral Products in managing skin allergies.Flash - Video

Allergy and Allergies Relief.

Allergy and Allergies Relief.http://www.pilgrim-self-hypnosis-recordings.com/page54/page54.html Allergy and Allergies Relief Advanced self hypnosis recordings by Duncan McColl of Pilgrim Tapes CD’s and...QuickTime - Video

Outdoor Allergies Prove Worse this ...

Outdoor Allergies Prove Worse this FallAllergy season should be over, but for people who suffer from outdoor allergies this fall proves to be worse. There is a combination of weed pollens and an increase ...Video - Video

Answers for Allergies

help meemeallergies???help meemei know exactly what u mean, i have the same problem. What I did was washed every bedsheet and vacuumed my room. I also removed my carpet and switched it with wood. Try not to leave your window open or...bubblegumx0xAllergies?>?>?>?>?>?>?>?bubblegumx0xIt could be... but without seeing a doctor you will not get a definitive answer online.Windi LeaHow much should allergies affect eyelash follicles?Windi Leai dont think its allopecia, if you rub your eyes alot, then you are loosening them, which makes it really easy for them to get irratated and fall out, i have to be careful of this same thing but not f...eateverywhaleWhat allergies do I need to fake to keep out of a vegetarian restaurant?eateverywhaleTell them you just don't want to go.braindead_romantikCan an allergic person overcome allergies to his pet by building a tolerance over time?braindead_romantikI have been allergic to cats all my life and I have never built any sort of immunity to them. I think you should go to a allergist and they can help you build immunity to your allergies by injecting y...
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