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Medications Apr 10, 2013 | 5 / 5 (1) | 0 |
Australian mums have been given a tick of approval when it comes to choosing the right time to give their babies solid foods.
Health Apr 10, 2013 | not rated yet | 0
In future there could be precise, personal travel warnings for hay fever sufferers covering the whole of Europe. The pollen warning service of the MedUni Vienna is working on a pollen count map in order to ...
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Pediatrics Apr 09, 2013 | not rated yet | 0
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By tracking the very earliest days of one person's robust immune response to HIV, researchers have charted a new route for developing a long-sought vaccine that could boost the body's ability to neutralize ...
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Asthma is becoming an epidemic in the United States. The number of Americans diagnosed with asthma grows annually, with 26 million currently affected. And according to a new study, nearly two-thirds or more of all asthmatics ...
Immunology Apr 02, 2013 | 5 / 5 (3) | 0 |
Scientists at the University of Pittsburgh School of Medicine have discovered a new biological pathway of innate immunity that ramps up inflammation and then identified agents that can block it, leading to increased survival ...
Immunology Mar 31, 2013 | 4.8 / 5 (4) | 1 |
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Medical research Mar 28, 2013 | 4 / 5 (1) | 0 |
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Health Mar 27, 2013 | not rated yet | 0
About 90 percent of children with two copies of a common genetic variation and who wheezed when they caught a cold early in life went on to develop asthma by age 6, according to a study to be published March 28 by the New En ...
Immunology Mar 27, 2013 | 5 / 5 (1) | 0 |
Drugmaker Merck & Co. says federal regulators are reviewing its application to sell a new type of treatment for grass pollen allergy that gradually reduces allergy symptoms over time, rather than just temporarily relieving ...
Immunology Mar 27, 2013 | 4 / 5 (1) | 0
In an advance in efforts to reduce the use of animals in testing new cosmetic and other product ingredients for skin allergies, scientists are describing a new, highly accurate non-animal test for these skin-sensitizers. ...
Medical research Mar 27, 2013 | not rated yet | 0
An allergy is a hypersensitivity disorder of the immune system. Allergic reactions occur when a person's immune system reacts to normally harmless substances in the environment. A substance that causes a reaction is called an allergen. These reactions are acquired, predictable, and rapid. Allergy is one of four forms of hypersensitivity and is formally called type I (or immediate) hypersensitivity. Allergic reactions are distinctive because of excessive activation of certain white blood cells called mast cells and basophils by a type of antibody called Immunoglobulin E (IgE). This reaction results in an inflammatory response which can range from uncomfortable to dangerous.
Mild allergies like hay fever are very common in the human population and cause symptoms such as red eyes, itchiness, and runny nose, eczema, hives, hay fever, or an asthma attack. 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 reactions called anaphylaxis. Food allergies, and reactions to the venom of stinging insects such as wasps and bees are often associated with these severe reactions.
A variety of tests exist to diagnose allergic conditions. These include placing possible allergens on the skin and looking for a reaction such as swelling. Blood tests can also be done to look for an allergen-specific IgE.
Treatments for allergies include avoiding known allergens, use of medications such as anti-histamines that specifically prevent allergic reactions, steroids that modify the immune system in general, and medications such as decongestants that reduce the symptoms. Many of these medications are taken by mouth, though epinephrine, which is used to treat anaphylactic reactions, is injected. Immunotherapy uses injected allergens to desensitize the body's response.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
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