allergy and immunology definition
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Translations for allergy and immunology Allergy and Immunology is a medical specialty on the diagnosis, treatment, and management of diseases and medical conditions involving the immune system.The field of Allergy and Immunology covers a wide variety of conditions, from allergies brought on by environmental factors, food and drug, etc. to autoimmune diseases and AIDS.
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Allergies and the Immune System Allergies are the result of your immune system’s response to a substance. Immune responses can be mild, from coughing and a runny nose, to a life-threatening reaction know as anaphylaxis. A person becomes allergic when their body develops antigens against a substance. Upon repeated exposure the severity of the reaction may increase.
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allergy allergy. n, pl-gies. 1. (Pathology) a hypersensitivity to a substance that causes the body to react to any contact with that substance. Hay fever is an allergic reaction to pollen. 2. aversion: he has an allergy to studying.
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Overview Definition. Penicillin allergy is an abnormal reaction of your immune system to the antibiotic drug penicillin. Penicillin is prescribed for treating various bacterial infections. Common signs and symptoms of penicillin allergy include hives, rash and itching. Severe reactions include anaphylaxis, a life-threatening condition that affects multiple body systems.
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What an Allergist Can Do for Your Child An allergist/immunologist is a medical doctor with specialty training in the diagnosis and treatment of allergic diseases, asthma, and diseases of the immune system.
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Immunology Immunology is a branch of biology that covers the study of immune systems in all organisms. The Russian biologist Ilya Ilyich Mechnikov advanced studies on immunology and received the Nobel Prize for his work in 1908. He pinned small thorns into starfish larvae and noticed unusual cells surrounding the thorns. This was the active response of the body trying to maintain its integrity. It was Mechnikov who first observed the phenomenon of phagocytosis, in which the body defends itself against a fo
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Learn About Allergies The topic of allergies has become routine in our lives, and certainly most everyone has an idea of what an allergy is. An allergy is an abnormal reaction by a person's immune system against a normally harmless substance. A person without allergies would have no reaction to this substance, but when a person who is allergic encounters the trigger, the body reacts by releasing chemicals which cause allergy symptoms.
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- Allergen: A substance that can cause an allergic reaction. Common allergens include ragwee... Allergic reaction: The hypersensitive response of the immune system of an allergic indiv... Allergic rhinitis: Medical term for hay fever, an allergic reaction that mimics a chronic ... Allergy: A misguided reaction to foreign substances by the immune system, the body system ... Allergy shots: See Allergy desensitization.
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allergy allergies. 1  1 : altered bodily reactivity (such as hypersensitivity) to an antigen in response to a first exposure a bee venom allergy so severe that a second sting may be fatal.
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Immunologic Tolerance An individual in a state of anergy often indicates that the immune system is unable to mount a normal immune response against a specific antigen, usually a self-antigen. Lymphocytes are said to be anergic when they fail to respond to their specific antigen. Anergy is one of three processes that induce tolerance, modifying the immune system to prevent self-destruction (the others being clonal deletion and immunoregulation).
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Overview The allergist treats asthma and allergies. An allergist is a physician who specializes in the diagnosis and treatment of asthma and other allergic diseases. The allergist is specially trained to identify the factors that trigger asthma or allergies. Allergists help people treat or prevent their allergy problems.
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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. Such reactions are called allergies.
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Allergies and Allergic Reactions Allergies are disorders of the immune system. Most allergic reactions are a result of an immune system that responds to a false alarm..
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immunology the branch of science dealing with the components of the immune system, immunity from disease, the immune response, and immunologic techniques of analysis. Origin of immunology.
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Top 30 Doctor insights on: Duration Of Allergic Reactions Allergies (Definition) Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and can be very serious. ...Read more.
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- Medical Definition of Immunoglobulin E. Immunoglobulin E: A class of immunoglobulins that includes the antibodies that are important in an allergic response. Abbreviated IgE. A person who has an allergy often has elevated blood levels of IgE. IgE antibodies attack and engage the invading army of allergens.
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Immune system Immunology: The study of all aspects of the immune system, including its structure and function, disorders of the immune system, blood banking, immunization, and organ transplantation.
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hypersensitivity A. Allergy is the exaggerated and out-of-place reaction of the immune system to external substances or stimuli that are not harmful to the body, so the reaction actually damages the body instead of helping it. The may be pollen and foods, as well as insect stings, drugs and almost any other substances.
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Dental Terms Allergic reaction: The hypersensitive response of the immune system of an allergic individual to a substance. When an allergen enters the body, it causes the body's immune system to develop an allergic reaction in a person with an allergy to it. This reaction can occur when the immune system attacks a normally harmless substance (the allergen). The immune system calls upon a protective antibody called immunoglobulin E or IgE to fight these invading substances.
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- A specialist in immunology. immunology im·mu·nol·o·gy (ĭm'yə-nŏl'ə-jē) n. The branch of biomedicine that is concerned with the structure and function of the immune system, innate and acquired immunity, and laboratory techniques involving the interaction of antigens with antibodies.
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- Immunotherapy is one of the most effective means of treating allergies and asthma, often resulting in near complete relief of symptoms. Immunotherapy treats the underlying cause of the allergic reaction, slowly allowing your body to eventually better tolerate the allergens that trigger your symptoms.Immunotherapy is a type of preventative treatment for an allergic response to allergens such as pollens, dust mites, molds, and animal dander.Immunotherapy treats the underlying cause of the allergic reaction while decongestants and antihistamines only treat the symptoms.Immunotherapy involves administering gradually increasing doses of the allergens to the allergic patient.mmunotherapy treats the underlying cause of the allergic reaction while decongestants and antihistamines only treat the symptoms. Immunotherapy involves administering gradually increasing doses of the allergens to the allergic patient.
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Immunology Ecoimmunology, or ecological immunology, explores the relationship between the immune system of an organism and its social, biotic and abiotic environment. More recent ecoimmunological research has focused on host pathogen defences traditionally considered non-immunological, such as pathogen avoidance, self-medication, symbiont-mediated defenses, and fecundity trade-offs.
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ANERGY Meaning: Reduction or lack of an immune response to a specific antigen. Classified under: Nouns denoting stable states of affairs. Hypernyms (anergy is a kind of...): immunological disorder (a disorder of the immune system)
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atopy See atopic. A state of increased sensitivity to common antigens (e.g., house dust, animal dander, pollen) with increased production of allergen-specific IgE. Atopy may have a hereditary component, given the increased susceptibility to hay fever, asthma and eczematoid dermatitis.linical immunology A state of ↑ sensitivity to common antigens–eg, house dust, animal dander, pollen, with ↑ production of allergen-specific IgE; atopy may have a hereditary component as there is ↑ susceptibility to hay fever, asthma, and eczematoid dermatitis.
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allergen allergen. 1. a substance, protein or nonprotein, capable of inducing allergy or specific hypersensitivity. 2. a purified protein of a food (such as milk, eggs, or wheat), bacterium, or pollen. adj., adj allergen´ic. Allergens are used to test a patient for hypersensitivity to specific substances (see skin test).
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Patch testing for skin allergies An allergic reaction is specific to the individual and to a substance (or a group of related substances) called an allergen. Allergy is a hypersensitivity (oversensitivity) to a particular substance, and always involves the immune system. All areas of skin that are in contact with the allergen develop the rash.