Patients with chronic obstructive pulmonary disease (COPD) who also have allergic disease have higher levels of respiratory symptoms and are at higher risk for COPD exacerbations, according to a new study from researchers ...
Diseases, Conditions, Syndromes May 10, 2013 | not rated yet | 0
Parents are reporting more skin and food allergies in their children, a big U.S. government survey found. Experts aren't sure what's behind the increase. Could it be that children are growing up in households so clean that ...
Immunology May 02, 2013 | not rated yet | 1
Children born outside the United States have a lower risk of asthma, skin and food allergies, and living in the United States for a decade may raise a person's allergy risk, said a study on Monday.
Immunology Apr 29, 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 ...
Diseases, Conditions, Syndromes Apr 09, 2013 | not rated yet | 0
(AP)—On the sidewalks and the subways it's clear: Japan is becoming a sea of surgical masks. It's about pollen, about germs and even a little about China, its polluting rival across the sea.
Diseases, Conditions, Syndromes Mar 22, 2013 | not rated yet | 0
(HealthDay)—The spring allergy season is off to an early start and allergy sufferers need to take action to prevent symptoms, an expert says.
Immunology Mar 17, 2013 | 5 / 5 (3) | 0
Scientists at the Charité – Universitätsmedizin Berlin have now been able to identify the grass pollen molecule, against which the allergic response of hay fever in children is initiated. In addition, it was shown that ...
Immunology Feb 11, 2013 | 5 / 5 (1) | 0
Despite known risks and recommendations for protective equipment, many people are still affected with asthma after exposure to chemicals at work. This is the finding of an international study of 13,000 people carried out ...
Health Jan 15, 2013 | not rated yet | 0
Triclosan - an antibacterial chemical found in toothpaste and other products - can contribute to an increased risk of allergy development in children. This comes from the Norwegian Environment and Childhood ...
Immunology Nov 14, 2012 | not rated yet | 0
(HealthDay)—A new study suggests that people who suffer from both hay fever and asthma may be less likely to die from colon cancer.
Cancer Oct 18, 2012 | not rated yet | 0
(Medical Xpress)—A new study from the University of Alberta shows that your genes could be the reason your allergic asthma or hay fever is so severe.
Inflammatory disorders Oct 15, 2012 | 5 / 5 (1) | 0
The best-selling wrinkle erasing drug Botox will be used in an Australian study to treat hay fever, researchers said Tuesday after it showed promise in providing relief in early trials.
Diseases, Conditions, Syndromes Oct 09, 2012 | 5 / 5 (1) | 0
(HealthDay)—Many parents complain that as soon as school starts, their child inevitably catches a cold. But, while kids do swap their fair share of germs during the school day, not every runny nose stems ...
Diseases, Conditions, Syndromes Sep 25, 2012 | not rated yet | 0
A synthetic, anti-inflammatory and anti-allergic family of drugs to combat a variety of illnesses while avoiding detrimental side effects has been developed by a Hebrew University of Jerusalem researcher.
Inflammatory disorders Sep 06, 2012 | 5 / 5 (3) | 0
Queenslanders can expect to endure a longer hay fever season than the rest of Australia thanks to flowering subtropical grasses.
Immunology Sep 03, 2012 | not rated yet | 0
Allergic rhinitis is an allergic inflammation of the nasal airways. It occurs when an allergen, such as pollen, dust or animal dander (particles of shed skin and hair) is inhaled by an individual with a sensitized immune system. In such individuals, the allergen triggers the production of the antibody immunoglobulin E (IgE), which binds to mast cells and basophils containing histamine. When caused by pollens of any plants, it is called "pollinosis", and if specifically caused by grass pollens, it is known as "hay fever". Ironically, in hay fever, there is neither any fever nor any hay, but since grasses shed their pollens into the air, at about the same time that hay is being cut, the common term hay fever is used.
IgE bound to mast cells are stimulated by pollen and dust, causing the release of inflammatory mediators such as histamine (and other chemicals). This usually causes sneezing, itchy and watery eyes, swelling and inflammation of the nasal passages, and an increase in mucus production. Symptoms vary in severity between individuals. Very sensitive individuals can experience hives or other rashes. Particulate matter in polluted air, and chemicals such as chlorine and detergents, which can normally be tolerated, can greatly aggravate allergic rhinitis. The physician John Bostock first described hay fever in 1819 as a disease.
Allergies are common. Heredity and environmental exposures may contribute to a predisposition to allergies. It is roughly estimated that one in three people have an active allergy at any given time and at least three in four people develop an allergic reaction at least once in their lives. In Western countries between 10–25% of people annually are affected by allergic rhinitis.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
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