peanut allergy

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peanut allergy

Immunology A common cause of anaphylactic reactions which, unlike some allergies, is rarely outgrown; PA is the most common cause of food allergy in the US, and a leading cause of food-induced anaphylaxis and death after accidental exposure

peanut allergy

An IgE-mediated immediate hypersensitivity reaction to the consumption of peanuts (the seeds of Arachis hypogaea). Peanut allergens are designated Ara by the World Health Organization. Peanut allergy is the most important food allergy in the U.S., affecting more than a million people. Reactions range from mild (rashes) to life-threatening (closure of the airway, cardiac dysrhythmias, coma). About 50 people die of peanut allergy in the U.S. each year.

Patient care

People with known allergies to peanuts must avoid eating raw or processed peanuts and also products containing or prepared with peanut oil . Those affected by peanut allergy should learn to watch for the signs of anaphylaxis (hives, pruritus, rashes in the skin creases, shortness of breath, choking, wheezing, stridor). People with known anaphylaxis to peanuts should carry epinephrine injectors and use them at the onset of a hypersensitivity reaction. (Repeated use may be necessary in persistent reactions.) Cross-reactivity to other legumes (peas, soy products) may affect some people and pose important health risks. Affected people should wear medical alert bracelets or necklaces identifying their condition. Densensitization can be accomplished with modified peanut allergens.

See also: allergy

peanut allergy

An often severe form of ALLERGY in which up to one-third of sufferers experience ANAPHYLAXIS. Peanut allergy is not more common than other food allergies, all of which are rare, affecting about 1 person in 100,000 per year. It is becoming commoner, however, and is liable to be more severe than most, and is especially dangerous in asthmatic children. Peanut proteins may be found in such diverse foodstuffs as chocolate spread and scotch eggs. The allergy has been shown to be significantly associated with intake of soy milk or soy formula and with the use of skin preparations containing peanut oil. The increasing incidence is thought to be due to unduly early exposure of babies to peanut butter after weaning.
References in periodicals archive ?
Traces of nuts are capable of causing severe and potentially life-threatening allergic reactions to those who suffer from peanut allergies.
Peanut allergies have increased by 350 percent in westernised countries over the last 20 years, with a recent Australian study finding that 10 percent of all 12monthold babies were allergic to peanuts, as well as 3 percent of all infants.
However, more challenges are waiting until the final products are accepted from the public, especially the patients with peanut allergies.
Said cited all the allergies like peanut allergies are the most fatal and there is an increasing concern as children age and enter their high-risk teenage years.
Although peanut allergies still only affect a relatively small proportion of consumers, this posits brands a greater opportunity to promote these alternative-based spreads not only among those with allergies, but who are looking to transition to more overall healthy alternatives.
Peanut allergies are on the rise globally and affect about 1 in 50 children, mostly in high-income countries.
She found that while people generally eat peanuts that have been heat treated (via roasting or boiling), the extracts that are commonly used to diagnose peanut allergies are from raw peanuts.
London, Sept 6 (ANI): Geneticists, including one of Indian-origin, have linked African ancestry to an increased risk of peanut allergies.
SCOTS scientists have found a vital clue to why thousands of kids get deadly peanut allergies.
POTENTIALLY fatal childhood peanut allergies mainly affect better-off boys, research has shown.
Peanut allergies are relatively common and usually cause breathing problems.
ISLAMABAD, March 15, 2010 (Balochistan Times): Among children and teenagers with asthma, those who also have peanut allergies may have more or more-severe asthma attacks.