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Allergen

Index Allergen

An allergen is a type of antigen that produces an abnormally vigorous immune response in which the immune system fights off a perceived threat that would otherwise be harmless to the body. [1]

157 relations: Adrenaline, Aesculus, Alder, Allergen immunotherapy, Allergic conjunctivitis, Allergic rhinitis, Allergy, Allergy to cats, Almond, Alternaria, Alternative medicine, Anaphylaxis, Antigen, Antihistamine, Anxiety, Appetite, Aroma compound, Artemisia vulgaris, Aspergillus, Asthma, Atopy, Autumn, Azelastine, Balsam of Peru, Basidiospore, Bean, Bee, Benadryl, Bioaerosol, Birch, Blood transfusion, Cadmium, Calvatia cyathiformis, Celeriac, Celery, Cetirizine, Chenopodium album, Chromium, Cladosporium, Clemastine, Cockroach, Constipation, Contact lens, Coprinus comatus, Cough, Cynodon dactylon, Dander, Dermatitis, Drug allergy, Egg allergy, ..., Egg white, Eggshell skull, Elm, European Union, Fel d 1, Fexofenadine, Fire ant, Food allergy, Food and Drug Administration, Food intolerance, Fruit, Fruit allergy, Fur, Ganoderma, Goldenseal, Hazel, Headache, Hornbeam, House dust mite, Hypoallergenic, Immune response, Immune system, Immunoassay, Immunoglobulin E, Insect sting allergy, Insomnia, Ipratropium bromide, Juniperus ashei, Latex, Latex allergy, Legume, List of allergens, Lolium, Loratadine, Maize, Maple, Milk allergy, Mosquito, Mouth, Nasal spray, Neomycin, Nickel, Nickel(II) sulfate, Nose filter, Nut (fruit), Oak, Olea, Oral allergy syndrome, Over-the-counter drug, Paranasal sinuses, Parasitic disease, Patch test, Pea, Peanut, Peanut allergy, Pecan, Penicillin, Petasites hybridus, Plantago, Platanus, Pleurotus ostreatus, Poaceae, Poison oak, Pollen, Populus, Pseudoephedrine, Puffball, Pumpkin, Quaternium-15, Radioallergosorbent test, Ragweed, Rhinorrhea, Royal jelly, Ruslan Medzhitov, Salicylic acid, Seafood, Sesame, Shellfish, Sneeze, Sorrel, Soy allergy, Soybean, Spore, Spring (season), Sulfonamide (medicine), Summer, Tilia, Timothy-grass, Topical decongestant, Toxicodendron radicans, Toxin, Tree, Tree nut allergy, Type I hypersensitivity, Urination, Urtica, Urushiol, Urushiol-induced contact dermatitis, Vaccine, Venom, Wasp, Weed, Wheat allergy, Wheeze, Willow, Wood, Wool. Expand index (107 more) »

Adrenaline

Adrenaline, also known as adrenalin or epinephrine, is a hormone, neurotransmitter, and medication.

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Aesculus

The genus Aesculus, with varieties called buckeye and horse chestnut, comprises 13–19 species of flowering plants in the soapberry and lychee family Sapindaceae.

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Alder

Alder is the common name of a genus of flowering plants (Alnus) belonging to the birch family Betulaceae.

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Allergen immunotherapy

Allergen immunotherapy, also known as desensitization or hypo-sensitization, is a medical treatment for some types of allergies.

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Allergic conjunctivitis

Allergic conjunctivitis is inflammation of the conjunctiva (the membrane covering the white part of the eye) due to allergy.

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Allergic rhinitis

Allergic rhinitis, also known as hay fever, is a type of inflammation in the nose which occurs when the immune system overreacts to allergens in the air.

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Allergy

Allergies, also known as allergic diseases, are a number of conditions caused by hypersensitivity of the immune system to typically harmless substances in the environment.

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Allergy to cats

Cat allergy in humans is an allergic reaction to one or more allergens produced by cats.

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Almond

The almond (Prunus dulcis, syn. Prunus amygdalus) is a species of tree native to Mediterranean climate regions of the Middle East, from Syria and Turkey to India and Pakistan, although it has been introduced elsewhere.

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Alternaria

Alternaria is a genus of ascomycete fungi.

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Alternative medicine

Alternative medicine, fringe medicine, pseudomedicine or simply questionable medicine is the use and promotion of practices which are unproven, disproven, impossible to prove, or excessively harmful in relation to their effect — in the attempt to achieve the healing effects of medicine.--> --> --> They differ from experimental medicine in that the latter employs responsible investigation, and accepts results that show it to be ineffective. The scientific consensus is that alternative therapies either do not, or cannot, work. In some cases laws of nature are violated by their basic claims; in some the treatment is so much worse that its use is unethical. Alternative practices, products, and therapies range from only ineffective to having known harmful and toxic effects.--> Alternative therapies may be credited for perceived improvement through placebo effects, decreased use or effect of medical treatment (and therefore either decreased side effects; or nocebo effects towards standard treatment),--> or the natural course of the condition or disease. Alternative treatment is not the same as experimental treatment or traditional medicine, although both can be misused in ways that are alternative. Alternative or complementary medicine is dangerous because it may discourage people from getting the best possible treatment, and may lead to a false understanding of the body and of science.-->---> Alternative medicine is used by a significant number of people, though its popularity is often overstated.--> Large amounts of funding go to testing alternative medicine, with more than US$2.5 billion spent by the United States government alone.--> Almost none show any effect beyond that of false treatment,--> and most studies showing any effect have been statistical flukes. Alternative medicine is a highly profitable industry, with a strong lobby. This fact is often overlooked by media or intentionally kept hidden, with alternative practice being portrayed positively when compared to "big pharma". --> The lobby has successfully pushed for alternative therapies to be subject to far less regulation than conventional medicine.--> Alternative therapies may even be allowed to promote use when there is demonstrably no effect, only a tradition of use. Regulation and licensing of alternative medicine and health care providers varies between and within countries. Despite laws making it illegal to market or promote alternative therapies for use in cancer treatment, many practitioners promote them.--> Alternative medicine is criticized for taking advantage of the weakest members of society.--! Terminology has shifted over time, reflecting the preferred branding of practitioners.. Science Based Medicine--> For example, the United States National Institutes of Health department studying alternative medicine, currently named National Center for Complementary and Integrative Health, was established as the Office of Alternative Medicine and was renamed the National Center for Complementary and Alternative Medicine before obtaining its current name. Therapies are often framed as "natural" or "holistic", in apparent opposition to conventional medicine which is "artificial" and "narrow in scope", statements which are intentionally misleading. --> When used together with functional medical treatment, alternative therapies do not "complement" (improve the effect of, or mitigate the side effects of) treatment.--> Significant drug interactions caused by alternative therapies may instead negatively impact functional treatment, making it less effective, notably in cancer.--> Alternative diagnoses and treatments are not part of medicine, or of science-based curricula in medical schools, nor are they used in any practice based on scientific knowledge or experience.--> Alternative therapies are often based on religious belief, tradition, superstition, belief in supernatural energies, pseudoscience, errors in reasoning, propaganda, fraud, or lies.--> Alternative medicine is based on misleading statements, quackery, pseudoscience, antiscience, fraud, and poor scientific methodology. Promoting alternative medicine has been called dangerous and unethical.--> Testing alternative medicine that has no scientific basis has been called a waste of scarce research resources.--> Critics state that "there is really no such thing as alternative medicine, just medicine that works and medicine that doesn't",--> that the very idea of "alternative" treatments is paradoxical, as any treatment proven to work is by definition "medicine".-->.

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Anaphylaxis

Anaphylaxis is a serious allergic reaction that is rapid in onset and may cause death.

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Antigen

In immunology, an antigen is a molecule capable of inducing an immune response (to produce an antibody) in the host organism.

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Antihistamine

Antihistamines are drugs which treat allergic rhinitis and other allergies.

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Anxiety

Anxiety is an emotion characterized by an unpleasant state of inner turmoil, often accompanied by nervous behaviour such as pacing back and forth, somatic complaints, and rumination.

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Appetite

Appetite is the desire to eat food, sometimes due to hunger.

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Aroma compound

An aroma compound, also known as an odorant, aroma, fragrance, or flavor, is a chemical compound that has a smell or odor.

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Artemisia vulgaris

Artemisia vulgaris (common mugwort or common wormwood) is one of several species in the genus Artemisia commonly known as mugwort, although Artemisia vulgaris is the species most often called mugwort.

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Aspergillus

Aspergillus is a genus consisting of a few hundred mold species found in various climates worldwide.

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Asthma

Asthma is a common long-term inflammatory disease of the airways of the lungs.

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Atopy

Atopy is a predisposition toward developing certain allergic hypersensitivity reactions.

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Autumn

Autumn, also known as fall in American and Canadian English, is one of the four temperate seasons.

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Azelastine

Azelastine is a potent, second-generation, selective, histamine antagonist (histamine-H1-receptor antagonist) used as a first line therapy of mild intermittent, moderate/severe intermittent and mild persistent rhinitis (new classification system for rhinitis).

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Balsam of Peru

Balsam of Peru, also known and marketed by many other names, is a balsam derived from a tree known as Myroxylon balsamum var.

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Basidiospore

A basidiospore is a reproductive spore produced by Basidiomycete fungi, a grouping that includes mushrooms, shelf fungi, rusts, and smuts.

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Bean

A bean is a seed of one of several genera of the flowering plant family Fabaceae, which are used for human or animal food.

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Bee

Bees are flying insects closely related to wasps and ants, known for their role in pollination and, in the case of the best-known bee species, the European honey bee, for producing honey and beeswax.

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Benadryl

Benadryl is a brand name for a number of different antihistamine medications used to treat allergies.

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Bioaerosol

Bioaerosols (short for biological aerosols) are a subcategory of particles released from terrestrial and marine ecosystems into the atmosphere.

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Birch

A birch is a thin-leaved deciduous hardwood tree of the genus Betula, in the family Betulaceae, which also includes alders, hazels, and hornbeams.

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Blood transfusion

Blood transfusion is generally the process of receiving blood or blood products into one's circulation intravenously.

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Cadmium

Cadmium is a chemical element with symbol Cd and atomic number 48.

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Calvatia cyathiformis

Calvatia cyathiformis, or purple-spored puffball, is a large edible saprobic species of Calvatia.

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Celeriac

Celeriac (Apium graveolens var. rapaceum), also called turnip-rooted celery, celery root, or knob celery, is a variety of celery cultivated for its edible stem or hypocotyl, and shoots.

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Celery

Celery (Apium graveolens) is a marshland plant in the family Apiaceae that has been cultivated as a vegetable since antiquity.

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Cetirizine

Cetirizine, prominently marketed under the brand name Zyrtec among others, is a potent second-generation antihistamine used in the treatment of hay fever, allergies, angioedema, and urticaria.

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Chenopodium album

Chenopodium album is a fast-growing weedy annual plant in the genus Chenopodium.

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Chromium

Chromium is a chemical element with symbol Cr and atomic number 24.

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Cladosporium

Cladosporium is a genus of fungi including some of the most common indoor and outdoor molds.

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Clemastine

Clemastine, also known as meclastin, is an antihistamine and anticholinergic.

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Cockroach

Cockroaches are insects of the order Blattodea, which also includes termites. About 30 cockroach species out of 4,600 are associated with human habitats. About four species are well known as pests. The cockroaches are an ancient group, dating back at least as far as the Carboniferous period, some 320 million years ago. Those early ancestors however lacked the internal ovipositors of modern roaches. Cockroaches are somewhat generalized insects without special adaptations like the sucking mouthparts of aphids and other true bugs; they have chewing mouthparts and are likely among the most primitive of living neopteran insects. They are common and hardy insects, and can tolerate a wide range of environments from Arctic cold to tropical heat. Tropical cockroaches are often much bigger than temperate species, and, contrary to popular belief, extinct cockroach relatives and 'roachoids' such as the Carboniferous Archimylacris and the Permian Apthoroblattina were not as large as the biggest modern species. Some species, such as the gregarious German cockroach, have an elaborate social structure involving common shelter, social dependence, information transfer and kin recognition. Cockroaches have appeared in human culture since classical antiquity. They are popularly depicted as dirty pests, though the great majority of species are inoffensive and live in a wide range of habitats around the world.

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Constipation

Constipation refers to bowel movements that are infrequent or hard to pass.

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Contact lens

A contact lens, or simply contact, is a thin lens placed directly on the surface of the eye.

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Coprinus comatus

Coprinus comatus, the shaggy ink cap, lawyer's wig, or shaggy mane, is a common fungus often seen growing on lawns, along gravel roads and waste areas.

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Cough

A cough is a sudden and often repetitively occurring, protective reflex, which helps to clear the large breathing passages from fluids, irritants, foreign particles and microbes.

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Cynodon dactylon

Cynodon dactylon, also known as Vilfa stellata, Bermuda grass, Dhoob, dūrvā grass, dubo, dog's tooth grass, Bahama grass, devil's grass, couch grass, Indian doab, arugampul, grama, wiregrass and scutch grass, is a grass that originated in Africa.

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Dander

Dander is material shed from the body of humans and various animals that have fur, hair, or feathers.

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Dermatitis

Dermatitis, also known as eczema, is a group of diseases that results in inflammation of the skin.

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Drug allergy

A drug allergy is an allergy to a drug, most commonly a medication, and is a form of adverse drug reaction.

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Egg allergy

Egg allergy is an immune hypersensitivity to proteins found in chicken eggs, and possibly goose, duck, or turkey eggs.

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Egg white

Egg white is the clear liquid (also called the albumen or the glair/glaire) contained within an egg.

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Eggshell skull

The eggshell rule (or thin skull rule) is a well-established legal doctrine in common law, used in some tort law systems, with a similar doctrine applicable to criminal law.

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Elm

Elms are deciduous and semi-deciduous trees comprising the flowering plant genus Ulmus in the plant family Ulmaceae.

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European Union

The European Union (EU) is a political and economic union of EUnum member states that are located primarily in Europe.

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Fel d 1

Fel d 1 is a protein that in cats is encoded by the CH1 (chain 1/Fel d 1-A) and CH2 (chain 2/Fel d 1-B) genes.

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Fexofenadine

Fexofenadine, sold under the trade name Allegra among others is an antihistamine pharmaceutical drug used in the treatment of allergy symptoms, such as hay fever and urticaria.

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Fire ant

Fire ant is the common name for several species of ants in the genus Solenopsis.

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Food allergy

A food allergy is an abnormal immune response to food.

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Food and Drug Administration

The Food and Drug Administration (FDA or USFDA) is a federal agency of the United States Department of Health and Human Services, one of the United States federal executive departments.

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Food intolerance

Food intolerance is a detrimental reaction, often delayed, to a food, beverage, food additive, or compound found in foods that produces symptoms in one or more body organs and systems, but generally refers to reactions other than food allergy.

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Fruit

In botany, a fruit is the seed-bearing structure in flowering plants (also known as angiosperms) formed from the ovary after flowering.

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Fruit allergy

A fruit allergy is a food allergy.

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Fur

Fur is the hair covering of non-human mammals, particularly those mammals with extensive body hair that is soft and thick.

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Ganoderma

Ganoderma is a genus of polypore mushrooms that grow on wood, and include about 80 species, many from tropical regions.

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Goldenseal

Goldenseal (Hydrastis canadensis), also called orangeroot or yellow puccoon, is a perennial herb in the buttercup family Ranunculaceae, native to southeastern Canada and the eastern United States.

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Hazel

The hazel (Corylus) is a genus of deciduous trees and large shrubs native to the temperate Northern Hemisphere.

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Headache

Headache is the symptom of pain anywhere in the region of the head or neck.

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Hornbeam

Hornbeams are hardwood trees in the flowering plant genus Carpinus in the birch family Betulaceae.

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House dust mite

House dust mites (HDM, or simply dust mites) are a large number of mites found in association with dust in dwellings.

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Hypoallergenic

Hypoallergenic, meaning "below normal" or "slightly" allergenic, was a term first used in a cosmetics campaign in 1953.

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Immune response

The Immune response is the body's response caused by its immune system being activated by antigens.

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Immune system

The immune system is a host defense system comprising many biological structures and processes within an organism that protects against disease.

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Immunoassay

An immunoassay is a biochemical test that measures the presence or concentration of a macromolecule or a small molecule in a solution through the use of an antibody (usually) or an antigen (sometimes).

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Immunoglobulin E

Immunoglobulin E (IgE) is a type of antibody (or immunoglobulin (Ig) "isotype") that has only been found in mammals.

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Insect sting allergy

Insect sting allergy is the term commonly given to the allergic response of an animal in response to the bite or sting of an insect.

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Insomnia

Insomnia, also known as sleeplessness, is a sleep disorder where people have trouble sleeping.

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Ipratropium bromide

Ipratropium bromide, sold under the trade name Atrovent among others, is a medication which opens up the medium and large airways in the lungs.

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Juniperus ashei

Juniperus ashei (Ashe juniper, post cedar, mountain cedar, or blueberry juniper) is a drought-tolerant evergreen tree, native to northeastern Mexico and the south-central United States north to southern Missouri; the largest areas are in central Texas, where extensive stands occur.

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Latex

Latex is a stable dispersion (emulsion) of polymer microparticles in an aqueous medium.

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Latex allergy

Latex allergy is a medical term encompassing a range of allergic reactions to the proteins present in natural rubber latex.

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Legume

A legume is a plant or its fruit or seed in the family Fabaceae (or Leguminosae).

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List of allergens

This is a list of allergies, which includes the allergen, potential reactions, and a brief description of the cause where applicable.

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Lolium

Lolium is a genus of tufted grasses in the bluegrass subfamily of the grass family.

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Loratadine

Loratadine, sold under the brand name Claritin among others, is a medication used to treat allergies.

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Maize

Maize (Zea mays subsp. mays, from maíz after Taíno mahiz), also known as corn, is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago.

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Maple

Acer is a genus of trees or shrubs commonly known as maple.

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Milk allergy

Milk allergy is an adverse immune reaction to one or more proteins in cow's milk.

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Mosquito

Mosquitoes are small, midge-like flies that constitute the family Culicidae.

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Mouth

In animal anatomy, the mouth, also known as the oral cavity, buccal cavity, or in Latin cavum oris, is the opening through which many animals take in food and issue vocal sounds.

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Nasal spray

Nasal sprays, or nasal drops, are used as local treatments for conditions such as nasal congestion and allergic rhinitis.

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Neomycin

Neomycin is an aminoglycoside antibiotic found in many topical medications such as creams, ointments, and eyedrops.

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Nickel

Nickel is a chemical element with symbol Ni and atomic number 28.

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Nickel(II) sulfate

Nickel(II) sulfate, or just nickel sulfate, usually refers to the inorganic compound with the formula NiSO4(H2O)6.

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Nose filter

A nose filter or nasal filter is an air filter designed to fit inside the human nostrils to prevent the nasal inhalation of allergens, pollutants, and irritants such as dust, smoke, and foul odors.

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Nut (fruit)

A nut is a fruit composed of an inedible hard shell and a seed, which is generally edible.

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Oak

An oak is a tree or shrub in the genus Quercus (Latin "oak tree") of the beech family, Fagaceae.

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Olea

Olea is a genus of about 40 species in the family Oleaceae, native to warm temperate and tropical regions of the Middle East, southern Europe, Africa, southern Asia, and Australasia.

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Oral allergy syndrome

Oral allergy syndrome (OAS), now known as Pollen-Food Allergy) is an allergic reaction in the mouth following eating food. It is a type of food allergy classified by a cluster of allergic reactions in the mouth in response to eating certain (usually fresh) fruits, nuts, and vegetables that typically develops in adults with hay fever. OAS is not a separate food allergy, but rather represents cross-reactivity between distant remnants of tree or weed pollen still found in certain fruits and vegetables. Therefore, OAS is only seen in people with seasonal pollen allergies, and mostly people who are allergic to tree pollen. It is usually limited to ingestion of only uncooked fruits or vegetables. Another term used for this syndrome is pollen-food allergy. In adults up to 60% of all food allergic reactions are due to cross-reactions between foods and inhalative allergens. OAS is a Type 1 or IgE-mediated hypersensitivity, which is sometimes called a "true allergy". The body's immune system produces IgE antibodies against pollen; in OAS, these antibodies also bind to (or cross-react with) other structurally similar proteins found in botanically related plants. OAS can occur any time of the year but is most prevalent during the pollen season. Individuals with OAS usually develop symptoms within a few minutes after eating the food.

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Over-the-counter drug

Over-the-counter (OTC) drugs are medicines sold directly to a consumer without a prescription from a healthcare professional, as opposed to prescription drugs, which may be sold only to consumers possessing a valid prescription.

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Paranasal sinuses

Paranasal sinuses are a group of four paired air-filled spaces that surround the nasal cavity.

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Parasitic disease

A parasitic disease, also known as parasitosis, is an infectious disease caused or transmitted by a parasite.

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Patch test

A patch test is a method used to determine whether a specific substance causes allergic inflammation of a patient's skin.

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Pea

The pea is most commonly the small spherical seed or the seed-pod of the pod fruit Pisum sativum.

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Peanut

The peanut, also known as the groundnut or the goober and taxonomically classified as Arachis hypogaea, is a legume crop grown mainly for its edible seeds.

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Peanut allergy

Peanut allergy is a type of food allergy to peanuts.

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Pecan

The pecan (Carya illinoinensis) is a species of hickory native to Mexico and the Southern United States.

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Penicillin

Penicillin (PCN or pen) is a group of antibiotics which include penicillin G (intravenous use), penicillin V (use by mouth), procaine penicillin, and benzathine penicillin (intramuscular use).

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Petasites hybridus

Petasites hybridus, the butterbur, is a herbaceous perennial flowering plant in the daisy family Asteraceae, native to Europe and northern Asia.

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Plantago

Plantago is a genus of about 200 species of small, inconspicuous plants commonly called plantains or fleaworts.

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Platanus

Platanus is a genus consisting of a small number of tree species native to the Northern Hemisphere.

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Pleurotus ostreatus

Pleurotus ostreatus, the oyster mushroom, is a common edible mushroom.

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Poaceae

Poaceae or Gramineae is a large and nearly ubiquitous family of monocotyledonous flowering plants known as grasses, commonly referred to collectively as grass.

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Poison oak

Poison oak refers to two plant species in the genus Toxicodendron.

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Pollen

Pollen is a fine to coarse powdery substance comprising pollen grains which are male microgametophytes of seed plants, which produce male gametes (sperm cells).

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Populus

Populus is a genus of 25–35 species of deciduous flowering plants in the family Salicaceae, native to most of the Northern Hemisphere.

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Pseudoephedrine

Pseudoephedrine (PSE) is a sympathomimetic drug of the phenethylamine and amphetamine chemical classes.

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Puffball

A puffball is a member of any of several groups of fungi in the division Basidiomycota.

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Pumpkin

A pumpkin is a cultivar of a squash plant, most commonly of Cucurbita pepo, that is round, with smooth, slightly ribbed skin, and deep yellow to orange coloration.

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Quaternium-15

Quaternium-15 (systematic name: hexamethylenetetramine chloroallyl chloride) is a quaternary ammonium salt used as a surfactant and preservative in many cosmetics and industrial substances.

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Radioallergosorbent test

A radioallergosorbent test (RAST) is a blood test using radioimmunoassay test to detect specific IgE antibodies, to determine the substances a subject is allergic to.

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Ragweed

Ragweeds are flowering plants in the genus Ambrosia in the aster family, Asteraceae.

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Rhinorrhea

Rhinorrhea or rhinorrhoea is a condition where the nasal cavity is filled with a significant amount of mucus fluid.

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Royal jelly

Royal jelly is a honey bee secretion that is used in the nutrition of larvae, as well as adult queens.

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Ruslan Medzhitov

Ruslan M. Medzhitov is a professor of immunobiology at Yale School of Medicine, a member of Yale Cancer Center, and a Howard Hughes Medical Institute investigator.

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Salicylic acid

Salicylic acid (from Latin salix, willow tree) is a lipophilic monohydroxybenzoic acid, a type of phenolic acid, and a beta hydroxy acid (BHA).

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Seafood

Seafood is any form of sea life regarded as food by humans.

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Sesame

Sesame (Sesamum indicum) is a flowering plant in the genus Sesamum, also called benne.

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Shellfish

Shellfish is a food source and fisheries term for exoskeleton-bearing aquatic invertebrates used as food, including various species of molluscs, crustaceans, and echinoderms.

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Sneeze

A sneeze, or sternutation, is a semi-autonomous, convulsive expulsion of air from the lungs through the nose and mouth, usually caused by foreign particles irritating the nasal mucosa.

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Sorrel

Common sorrel or garden sorrel (Rumex acetosa), often simply called sorrel, is a perennial herb in the family Polygonaceae.

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Soy allergy

Soy allergy is a type of food allergy.

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Soybean

The soybean (Glycine max), or soya bean, is a species of legume native to East Asia, widely grown for its edible bean, which has numerous uses.

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Spore

In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions.

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Spring (season)

Spring is one of the four conventional temperate seasons, following winter and preceding summer.

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Sulfonamide (medicine)

Sulfonamide (also called sulphonamide, sulfa drugs or sulpha drugs) is the basis of several groups of drugs.

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Summer

Summer is the hottest of the four temperate seasons, falling after spring and before autumn.

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Tilia

Tilia is a genus of about 30 species of trees, or bushes, native throughout most of the temperate Northern Hemisphere.

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Timothy-grass

Timothy-grass (Phleum pratense) is an abundant perennial grass native to most of Europe except for the Mediterranean region.

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Topical decongestant

Topical decongestants are decongestants applied directly to the nasal cavity.

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Toxicodendron radicans

Toxicodendron radicans, commonly known as eastern poison ivy or poison ivy, is a poisonous Asian and Eastern North American flowering plant that is well-known for causing urushiol-induced contact dermatitis, an itchy, irritating, and sometimes painful rash, in most people who touch it.

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Toxin

A toxin (from toxikon) is a poisonous substance produced within living cells or organisms; synthetic toxicants created by artificial processes are thus excluded.

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Tree

In botany, a tree is a perennial plant with an elongated stem, or trunk, supporting branches and leaves in most species.

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Tree nut allergy

A tree nut allergy is a hypersensitivity to dietary substances from tree nuts and edible tree seeds causing an overreaction of the immune system which may lead to severe physical symptoms.

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Type I hypersensitivity

Type I hypersensitivity (or immediate hypersensitivity) is an allergic reaction provoked by reexposure to a specific type of antigen referred to as an allergen.

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Urination

Urination is the release of urine from the urinary bladder through the urethra to the outside of the body.

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Urtica

Urtica is a genus of flowering plants in the family Urticaceae.

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Urushiol

Urushiol is an oily mixture of organic compounds with allergic properties found in plants of the family Anacardiaceae, especially Toxicodendron spp. (e.g., poison oak, Lacquer Tree, poison ivy, poison sumac) and also in parts of the mango tree.

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Urushiol-induced contact dermatitis

Urushiol-induced contact dermatitis (also called Toxicodendron dermatitis and Rhus dermatitis) is the medical name given to allergic rashes produced by the oil urushiol, which is contained in various plants, most notably those of the genus Toxicodendron: the Chinese lacquer tree, poison ivy, poison oak, and poison sumac.

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Vaccine

A vaccine is a biological preparation that provides active acquired immunity to a particular disease.

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Venom

Venomous Animals Venom is a form of toxin secreted by an animal for the purpose of causing harm to another.

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Wasp

A wasp is any insect of the order Hymenoptera and suborder Apocrita that is neither a bee nor an ant.

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Weed

A weed is a plant considered undesirable in a particular situation, "a plant in the wrong place".

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Wheat allergy

Wheat allergy is an allergy to wheat which typically presents itself as a food allergy, but can also be a contact allergy resulting from occupational exposure.

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Wheeze

A wheeze (formally called "sibilant rhonchi" in medical terminology) is a continuous, coarse, whistling sound produced in the respiratory airways during breathing.

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Willow

Willows, also called sallows, and osiers, form the genus Salix, around 400 speciesMabberley, D.J. 1997.

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Wood

Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants.

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Wool

Wool is the textile fiber obtained from sheep and other animals, including cashmere and mohair from goats, qiviut from muskoxen, angora from rabbits, and other types of wool from camelids.

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Redirects here:

Allergenic, Allergenicity, Allergens, Allergy season, Antiallergic, Contact allergen, Seasonal allergies, Seasonal allergy.

References

[1] https://en.wikipedia.org/wiki/Allergen

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