ALLERGEN in Biological News

Malfunction of the respiratory epithelium is a cause of allergy?

... what happens in the epithelium immediately after allergen exposure, before the allergic reaction develops. They used birch pollen allergen (Bet v 1) exposure and showed that this allergen binds to, enters and travels through conjunctival ...

The Clorox Company's new indoor allergen product reduces common indoor allergens up to 90 percent

... dander by up to 90 percent. While most indoor allergen sprays trap or hide indoor allergens, Clorox® ... dander allergens by altering the structure of the allergen protein. "Replacing the carpet with hardwood ... in the home making them a critical part of indoor allergen control. In fact, there may be more allergens on ...

Increased allergen levels in homes linked to asthma

... a new national survey demonstrate that elevated allergen levels in the home are associated with asthma ... have allergies may alleviate symptoms by reducing allergen exposures inside their homes. The work was ... of Americans who suffer from asthma. Indoor allergen exposures are of great importance in relation to ...

NIH selects LIAI for major study on allergy molecular causes and possible treatments

... donors over five years and will look at 32 common allergen sources, such as trees, grasses, weeds, fungi, ... doses of the substance causing allergy or allergen over a long period of time in order to develop ... could be given small pieces or epitopes from the allergen that would be able to induce immune tolerance, ...

Expert recommends town councils to design low-allergy impact green spaces

... it comes to design urban green spaces. "All of them have been described as allergen plants, and they provoke serious damage to the people who suffer such ... may remain adherent to the surface of pollen grains increasing their allergen activity) are other of the factors which contribute to the allergic nature ...

Animal food allergens unmasked

... of Vienna. EF-hand proteins form the second largest animal food allergen family. Those in birds and mammals are not allergenic, while those in frogs and fish can cause allergy. The third animal food allergen family, caseins, are all mammalian proteins from milk. The researchers ...

IPM reduces cockroaches and allergens in schools

... cockroach allergens, especially among inner-city children. A new study in the May issue of Journal of Medical Entomology entitled "German Cockroach allergen Levels in North Carolina Schools: Comparison of Integrated Pest Management and Conventional Cockroach Control" shows that using integrated pest ...

Toxicology program features wide range of human health and environment topical sessions

... There is growing concern that the introduction of a novel protein into the food supply could result in the unintentional introduction of a new food allergen and could pose a risk to susceptible individuals. Toxicologists will explore this issue and talk about a number of strategies that have been used to ...

Even natural perfumes may cause allergies

... be only slightly allergenic. However through autoxidation and reaction with skin enzymes, the substance is activated and becomes the closely related allergen geranial. This is the first time these activation pathways have been demonstrated for the substance. It is important to investigate how perfumes ...

Molecular mechanism of anaphylactic shock decoded

... on by medication, insect stings, or other allergens, which has become more frequent in recent decades. In sensitized persons, the presence of the allergen leads to the release of various substances (mediators) from immune cells in the blood. These mediators, e.g. histamine or leukotriene, cause an ...

Scientists developing food allergy treatment

... impact on their quality of life." Attempted treatment with allergen-specific immunotherapy, where a patient received monthly injections with an allergen extract for three to five years, failed because it could cause anaphylaxis as a side effect. Anaphylaxis is a severe allergic reaction involving ...

Lab test for allergy scoops national

... a patient and the researchers are hoping it could also be developed as a diagnostic tool for parasitic infections. It works by adding tiny dots of allergen molecules to paper on a glass slide. A drop of the patient's blood is added before the slide is incubated with the cells causing the symptoms of ...

Asthma and other allergies tied to absence of specialized cells

... reactions. These regulatory T cells are manufactured according to instructions from a gene called Foxp3 whenever we eat or inhale a potential allergen for the first time, ensuring that the next time we encounter that substance, we will not mount an allergic response. "We don't become allergic ...

Salt-tolerant gene found in simple plant nothing to sneeze at

... of the National Academy of Science. This gene has been considered non-essential or even a nuisance, Koiwa said. People thought it was an allergen and couldnt find anything good it was doing in plants. So, it was thought of as not necessary for the growth or development of a plant. However, ...

Study helps explain how allergic reactions are triggered

... store inflammatory cytokines and compounds [including histamine and heparin] in sacs called granules, she explains. When the mast cells encounter an allergen pollen, for example they degranuate, releasing their contents and triggering allergic reactions. But, she adds, in recent years, scientists have ...

First all-African GM crop is resistant to maize streak virus

... plants. The next stage of the research involves field trials to ensure that the transformed crop is digestible, that the protein is not an allergen and that it will be ecologically friendly to other organisms within the environment. Following the results of these trials, the crop will be ...

Novel Therapy Tested in Mice Could Chase Away Cat Allergies

... investigator Andrew Saxon, M.D., of UCLA. The cat allergen end of GFD binds to antibodies on the surface of ... allergic?to cats: their reactions to cat allergen would be comparable to reactions in a ... of these mice with GFD, and then injected cat allergen into the windpipes of all the mice, including a ...

Hay fever can send work productivity down the drain

... participants (405) had a traditional skin-prick test, in which a drop of allergen is placed on a patient's arm or back. The physician then pricks the skin through the drop, which lets the allergen enter the body. The doctor and patient then wait for a reaction, which ...

Allergy battle could be won in five years, says scientist

... to cause an allergic response. "The drugs we are developing -- called allergen Delivery Inhibitors (ADIs) ?are designed to disable these allergens so ... possible," said Professor Garrod. "Current medicines don't act against the allergen at this early stage ?they only ease the symptoms ?so the development of ...

Airborne mold spores increase kids' risk for multiple allergies

... employed as an environmental consultant at Quantus Analytical, a mold and allergen laboratory and consulting group in Cincinnati. Using a small air ... is needed before we will fully understand the impact of fungi as an allergen in infants." If mold is found in the home, the UC team recommends ...

Groundbreaking Canadian asthma study

... produced, and airways narrow when muscles within the airway walls contract. During an asthmatic attack, in response to an asthma trigger such as an allergen or irritant, the airway smooth muscle may contract leading to airway narrowing and breathing difficulties. Asthma currently affects more than 2 ...

'Allergy cells' can aggravate cancer and psoriasis

... substances that give rise to the classic allergic symptoms, such as swelling, congestion and itching. The explosive reactions are activated when an allergen (such as pollen particles) binds to receptors on the surface of the mast cell, which then opens and secretes part of its contents. In the past ...

Friendly bacteria in alcoholic milkshake could fight food allergies

... [Monday 16 October 2006(DOI 10.1002/jsfa2469)] in the SCI's Journal of the Science of Food and Agriculture has shown that the milk drink inhibits the allergen specific antibody Immunoglobulin E (IgE). IgE is involved in immune responses to inactivate organisms that might cause disease. However, in the ...

Pilot study successful in taming allergic reactions to food

... sufferers to alleviate symptoms. In this approach, called immunotherapy, physicians give patients shots containing small amounts of the troublesome allergen in an effort to build their tolerance to it. The therapy works on a cellular level to alter specific immune system cells, called lymphocytes, that ...