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| This glossary contains: 19186 medical terms |
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Allergic contact eczema
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Allergic contact eczemaAlso called allergic contact dermatitis, this is a red, itchy, weepy reaction where the skin has come into contact with a substance that the immune system recognizes as foreign, such as poison ivy or certain preservatives in creams and lotions.
RELATED TERMS--------------------------------------
Dermatitis
Dermatitis, also known as eczema, is a skin irritation characterized by red, flaky skin, sometimes with cracks or tiny blisters. Dermatitis is extremely itchy, but scratching damages the fragile skin and exacerbates the problem so it is important for people with eczema to try to leave the area alone.
Skin
Skin is an organ of the integumentary system; which is composed of a layer of tissues that protect underlying muscles and organs. Skin is used for insulation, vitamin D production, sensation, and excretion (through sweat).
Immune
Resistant to a particular disease.
Poison
A substance that causes illness or death when eaten, drunk or absorbed into the body.
SIMILAR TERMS--------------------------------------
Allegheny General Back Institute
The Allegheny General Back Institute is a hospital in Pittsburgh, Pennsylvania, United States.
Allegheny General Headache Center
The Allegheny General Headache Center is a hospital in Pittsburgh, Pennsylvania, United States.
Allegheny General Hospital-Suburban Campus
The Allegheny General Hospital-Suburban Campus is a hospital in Bellevue, Pennsylvania, United States.
Allegheny Neuropsychiatric
The Allegheny Neuropsychiatric is a hospital in Pittsburgh, Pennsylvania, United States.
Allegheny Rheumatology
The Allegheny Rheumatology is a hospital in Pittsburgh, Pennsylvania, United States.
Allegheny University
The Allegheny University is a hospital in Philadelphia, Pennsylvania, United States.
Allegheny University Hospitals
The Allegheny University Hospitals is a hospital in Philadelphia, Pennsylvania, United States.
Allegra
Allegra is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): fexofenadine hydrochloride .
Allegra d 24 hour
Allegra d 24 hour is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): fexofenadine hydrochloride; pseudoephedrine hydrochloride .
Allegra-d 12 hour
Allegra-d 12 hour is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): fexofenadine hydrochloride; pseudoephedrine hydrochloride .
Allele
An alternative form of a gene. One of the different forms of a gene that can exist at a single locus (spot on a chromosome). Also one of the different forms of any segment of a chromosome.
Allelic
Relating to one of a series of two or more alternate forms of a gene that occupy the same position or locus on a specific chromosome.
Allelic exclusion
The ability of heterozygous lymphoid cells to produce only one allelic form of antigen-specific receptor when they have the genetic endowment to produce both. Genes other than those for the specific receptors are usually expressed codominantly.
Allelotropia
A depth percept can cause a shift in perceived form, namely change in the perceived distance between patterns in a configuration. For example that a pattern AB C is viewed in one eye and the pattern A BC is viewed through the other, the letter B is seen in depth at a position halfway between A and C.
Allen Medical Center
The Allen Medical Center is a hospital in Oberlin Ohio, United States.
Allentown Osteopathic Medical
The Allentown Osteopathic Medical is a hospital in Allentown, Pennsylvania, United States.
Allerfed
Allerfed is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): pseudoephedrine hydrochloride; triprolidine hydrochloride .
Allergen
An antigen responsible for producing allergic reactions by inducing IgE formation.
Allergen extract
A fluid containing allergens extracted from natural sources (e.g. trees, grass, cat hair and dander) to a defined standard, quality and quantity. Used in specific allergy vaccination, skin prick tests, provocation tests and in vitro tests.
Allergic conjunctivitis
Inflammation of the whites of the eyes (the conjunctivae) with itching and redness of the eyes and tearing, due to allergy.
Allergic contact dermatitis
A red, itchy, weepy reaction where the skin has come into contact with a substance that the immune system recognizes as foreign, such as poison ivy, poison oak or poison sumac or certain preservatives in creams and lotions. This type of reaction reflects a specific sensitivity or allergy to a specific substance. Also called allergic contact eczema.
Allergic granulomatosis
A disease (also often called the Churg-Straus syndrome) characterized by inflammation of the blood vessels in persons with a history of asthma or allergy.The symptoms of the Churg-Strauss syndrome include fatigue, weight loss, inflammation of the nasal passages, numbness, and weakness. The ultimate test for the diagnosis of Churg-Straus syndrome is a biopsy of involved tissue. Treatment of Churg-Strauss syndrome involves stopping inflammation and suppressing the immune system. The Churg-Straus syndrome is named for the American pathologists Jacob Churg and Lotte Straus.
Allergic granulomatous angiitis
See: Churg-Strauss syndrome.
Allergic purpura
See: Sch”nlein-Henoch purpura.
Allergic rhinitis
Allergic rhinitis is a common allergic reaction that causes inflammation of the nose. Symptoms typically include sneezing, congestion, a runny nose, and an itchy nose. Allergic rhinitis may be seasonal or perennial.
Allergic rhinitis, perennial
Allergic rhinitis (hay fever) that occurs throughout the year.
Allergic rhinitis, seasonal
Allergic rhinitis (hay fever) which occurs during a specific season.
Allergic salute
"The person with allergic rhinitis (hay fever) often rubs his/her nose using the index finger. This is the so-called ""allergic salute."""
Allergic vasculitis
A disease (also more commonly called the Churg-Straus syndrome) characterized by inflammation of the blood vessels in persons with a history of asthma or allergy. The symptoms of the Churg-Strauss syndrome include fatigue, weight loss, inflammation of the nasal passages, numbness, and weakness. The ultimate test for the diagnosis of Churg-Straus syndrome is a biopsy of involved tissue. Treatment of Churg-Strauss syndrome involves stopping inflammation and suppressing the immune system. The Churg-Straus syndrome is named for the American pathologists Jacob Churg and Lotte Straus. Vasculitis means inflammation of vessels.
Allergies
Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen.
Allergy
A major defense mounted by the body's immune system against normally harmless substances, or allergens, such as chemicals in pollen, food, bee stings, animal dander, or dust. An allergic reaction is the body's strong reaction to these substances in a person who is sensitive to them. Reactions range from mild to severe, and may include sneezing, a rash, or difficulty breathing (which can be fatal).
Allergy and Infectious Diseases, National Inst.
"One of the U.S. National Institutes of Health (NIH), the mission of the NIAID is ""to support and conduct research and research training (that) strives to understand, treat, and ultimately prevent the myriad infectious, immunologic, and allergic diseases that threaten millions of human lives."" Immunology figures into this statement presumably because it is the common foundation for infectious diseases and allergy."
Allergy desensitization
"Stimulation of the immune system with gradually increasing doses of the substances to which a person is allergic, the aim being to modify or stop the allergy ""war"" (by reducing the strength of the IgE and its effect on the mast cells). This form of treatment is very effective for allergies to pollen, mites, cats, and especially stinging insects (e.g., bees, hornets, yellow jackets, wasps, velvet ants, fire ants). Allergy immunotherapy usually takes 6 months to a year to become effective and injections (""shots"") are usually required for 3-5 years."
Allergy immunotherapy
Stimulation of the immune system with gradually increasing doses of the substances to which a person is allergic. The aim is to modify or stop the allergy by reducing the strength of the IgE response. This form of treatment is very effective for allergies to pollen, mites, animal dander, and especially stinging insects. Allergy immunotherapy usually takes six months to a year to become effective, and injections are usually required for three to five years.
Allergy scratch test
Test done on the skin to identify the allergy substance (the allergen) that is the trigger for an allergic reaction. A small amount of the suspected allergy-provoking substance is placed on the skin. The skin is then gently scratched through the small drop with a special sterile needle. If the skin reddens and, more importantly, if it swells, then the test is read as positive and allergy to that substance is considered probable.
Allergy shots
See Allergy desensitization.
Allergy skin test
Test done on the skin to identify the allergy substance (the allergen) that is triggering the allergic reaction. A small amount of the suspected allergy-provoking substance is placed on the skin. The skin is then gently scratched through the small drop with a special sterile needle. If the skin reddens and, more importantly, if it swells, then the test is read as positive and allergy to that substance is considered probable.
Allergy testing
Tests (often skin tests) to determine a person?s reaction to some foreign substances that are normally harmless, but that produce reaction in some individuals.
Allergy to cockroaches
A condition that manifests as an allergic reaction when one is exposed to tiny particles from cockroaches. Asthma can be due to exposure to cockroach allergens (allergy-provoking substances). These substances are the proteins shed or excreted by the cockroaches.
Allergy, cow milk
"Casein and whey are the two major proteins of human milk and most milk-based formulas. Some (less than 8% of) infants have a true allergy to the cow proteins that are in milk-based formulas. Infants with true cow milk allergy can develop abdominal pain, diarrhea, rectal bleeding, skin rash, and wheezing when given milk- based formulas. These symptoms will disappear as soon milk- based formula is removed from the diet. (Allergy to cow milk protein is different from lactose intolerance). The treatment of cow milk protein allergy involves using formulas that contain no cow milk, or using formulas that contain ""predigested"" casein and whey proteins. The predigesting process breaks the whole proteins into smaller pieces or into amino acids. The amino acids and smaller protein pieces are non-allergenic (do not cause allergy). Soy protein formulas contain no cow milk, and are reasonable alternatives for infants with true cow milk allergy. However, some infants have allergy to both cow milk and soy proteins. These infants require a formula in which the cow milk protein (casein) has been ""predigested"" and specific amino acids added to provide a formula that can provide proper nutrition.
Allergy, honey bee
See: Honey bee allergy.
Allergy, peanut
See: Peanut allergy.
PREVIOUS AND NEXT TERMS--------------------------------------
Alkyl group
In chemistry, a group of atoms derived from an alkane (a hydrocarbon with no carbon-to-carbon multiple bonds) by the loss of a hydrogen atom.
ALL (acute lymphoblastic leukemia)
Acute lymphoblastic leukemia, also less often called acute lymphocytic leukemia. See: Acute lymphoblastic leukemia.
Allele
An alternative form of a gene. One of the different forms of a gene that can exist at a single locus (spot on a chromosome). Also one of the different forms of any segment of a chromosome.
Allergic conjunctivitis
Inflammation of the whites of the eyes (the conjunctivae) with itching and redness of the eyes and tearing, due to allergy.
Allergic contact dermatitis
A red, itchy, weepy reaction where the skin has come into contact with a substance that the immune system recognizes as foreign, such as poison ivy, poison oak or poison sumac or certain preservatives in creams and lotions. This type of reaction reflects a specific sensitivity or allergy to a specific substance. Also called allergic contact eczema.
Allergic contact eczema
Allergic granulomatosis
A disease (also often called the Churg-Straus syndrome) characterized by inflammation of the blood vessels in persons with a history of asthma or allergy.The symptoms of the Churg-Strauss syndrome include fatigue, weight loss, inflammation of the nasal passages, numbness, and weakness. The ultimate test for the diagnosis of Churg-Straus syndrome is a biopsy of involved tissue. Treatment of Churg-Strauss syndrome involves stopping inflammation and suppressing the immune system. The Churg-Straus syndrome is named for the American pathologists Jacob Churg and Lotte Straus.
Allergic granulomatous angiitis
See: Churg-Strauss syndrome.
Allergic purpura
See: Sch”nlein-Henoch purpura.
Allergic rhinitis, perennial
Allergic rhinitis (hay fever) that occurs throughout the year.
Allergic rhinitis, seasonal
Allergic rhinitis (hay fever) which occurs during a specific season.
RELATED TERMS--------------------------------------
Dermatitis
Dermatitis, also known as eczema, is a skin irritation characterized by red, flaky skin, sometimes with cracks or tiny blisters. Dermatitis is extremely itchy, but scratching damages the fragile skin and exacerbates the problem so it is important for people with eczema to try to leave the area alone.
Skin
Skin is an organ of the integumentary system; which is composed of a layer of tissues that protect underlying muscles and organs. Skin is used for insulation, vitamin D production, sensation, and excretion (through sweat).
Immune
Resistant to a particular disease.
Poison
A substance that causes illness or death when eaten, drunk or absorbed into the body.
SIMILAR TERMS--------------------------------------
Allegheny General Back Institute
The Allegheny General Back Institute is a hospital in Pittsburgh, Pennsylvania, United States.
Allegheny General Headache Center
The Allegheny General Headache Center is a hospital in Pittsburgh, Pennsylvania, United States.
Allegheny General Hospital-Suburban Campus
The Allegheny General Hospital-Suburban Campus is a hospital in Bellevue, Pennsylvania, United States.
Allegheny Neuropsychiatric
The Allegheny Neuropsychiatric is a hospital in Pittsburgh, Pennsylvania, United States.
Allegheny Rheumatology
The Allegheny Rheumatology is a hospital in Pittsburgh, Pennsylvania, United States.
Allegheny University
The Allegheny University is a hospital in Philadelphia, Pennsylvania, United States.
Allegheny University Hospitals
The Allegheny University Hospitals is a hospital in Philadelphia, Pennsylvania, United States.
Allegra
Allegra is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): fexofenadine hydrochloride .
Allegra d 24 hour
Allegra d 24 hour is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): fexofenadine hydrochloride; pseudoephedrine hydrochloride .
Allegra-d 12 hour
Allegra-d 12 hour is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): fexofenadine hydrochloride; pseudoephedrine hydrochloride .
Allele
An alternative form of a gene. One of the different forms of a gene that can exist at a single locus (spot on a chromosome). Also one of the different forms of any segment of a chromosome.
Allelic
Relating to one of a series of two or more alternate forms of a gene that occupy the same position or locus on a specific chromosome.
Allelic exclusion
The ability of heterozygous lymphoid cells to produce only one allelic form of antigen-specific receptor when they have the genetic endowment to produce both. Genes other than those for the specific receptors are usually expressed codominantly.
Allelotropia
A depth percept can cause a shift in perceived form, namely change in the perceived distance between patterns in a configuration. For example that a pattern AB C is viewed in one eye and the pattern A BC is viewed through the other, the letter B is seen in depth at a position halfway between A and C.
Allen Medical Center
The Allen Medical Center is a hospital in Oberlin Ohio, United States.
Allentown Osteopathic Medical
The Allentown Osteopathic Medical is a hospital in Allentown, Pennsylvania, United States.
Allerfed
Allerfed is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): pseudoephedrine hydrochloride; triprolidine hydrochloride .
Allergen
An antigen responsible for producing allergic reactions by inducing IgE formation.
Allergen extract
A fluid containing allergens extracted from natural sources (e.g. trees, grass, cat hair and dander) to a defined standard, quality and quantity. Used in specific allergy vaccination, skin prick tests, provocation tests and in vitro tests.
Allergic conjunctivitis
Inflammation of the whites of the eyes (the conjunctivae) with itching and redness of the eyes and tearing, due to allergy.
Allergic contact dermatitis
A red, itchy, weepy reaction where the skin has come into contact with a substance that the immune system recognizes as foreign, such as poison ivy, poison oak or poison sumac or certain preservatives in creams and lotions. This type of reaction reflects a specific sensitivity or allergy to a specific substance. Also called allergic contact eczema.
Allergic granulomatosis
A disease (also often called the Churg-Straus syndrome) characterized by inflammation of the blood vessels in persons with a history of asthma or allergy.The symptoms of the Churg-Strauss syndrome include fatigue, weight loss, inflammation of the nasal passages, numbness, and weakness. The ultimate test for the diagnosis of Churg-Straus syndrome is a biopsy of involved tissue. Treatment of Churg-Strauss syndrome involves stopping inflammation and suppressing the immune system. The Churg-Straus syndrome is named for the American pathologists Jacob Churg and Lotte Straus.
Allergic granulomatous angiitis
See: Churg-Strauss syndrome.
Allergic purpura
See: Sch”nlein-Henoch purpura.
Allergic rhinitis
Allergic rhinitis is a common allergic reaction that causes inflammation of the nose. Symptoms typically include sneezing, congestion, a runny nose, and an itchy nose. Allergic rhinitis may be seasonal or perennial.
Allergic rhinitis, perennial
Allergic rhinitis (hay fever) that occurs throughout the year.
Allergic rhinitis, seasonal
Allergic rhinitis (hay fever) which occurs during a specific season.
Allergic salute
"The person with allergic rhinitis (hay fever) often rubs his/her nose using the index finger. This is the so-called ""allergic salute."""
Allergic vasculitis
A disease (also more commonly called the Churg-Straus syndrome) characterized by inflammation of the blood vessels in persons with a history of asthma or allergy. The symptoms of the Churg-Strauss syndrome include fatigue, weight loss, inflammation of the nasal passages, numbness, and weakness. The ultimate test for the diagnosis of Churg-Straus syndrome is a biopsy of involved tissue. Treatment of Churg-Strauss syndrome involves stopping inflammation and suppressing the immune system. The Churg-Straus syndrome is named for the American pathologists Jacob Churg and Lotte Straus. Vasculitis means inflammation of vessels.
Allergies
Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen.
Allergy
A major defense mounted by the body's immune system against normally harmless substances, or allergens, such as chemicals in pollen, food, bee stings, animal dander, or dust. An allergic reaction is the body's strong reaction to these substances in a person who is sensitive to them. Reactions range from mild to severe, and may include sneezing, a rash, or difficulty breathing (which can be fatal).
Allergy and Infectious Diseases, National Inst.
"One of the U.S. National Institutes of Health (NIH), the mission of the NIAID is ""to support and conduct research and research training (that) strives to understand, treat, and ultimately prevent the myriad infectious, immunologic, and allergic diseases that threaten millions of human lives."" Immunology figures into this statement presumably because it is the common foundation for infectious diseases and allergy."
Allergy desensitization
"Stimulation of the immune system with gradually increasing doses of the substances to which a person is allergic, the aim being to modify or stop the allergy ""war"" (by reducing the strength of the IgE and its effect on the mast cells). This form of treatment is very effective for allergies to pollen, mites, cats, and especially stinging insects (e.g., bees, hornets, yellow jackets, wasps, velvet ants, fire ants). Allergy immunotherapy usually takes 6 months to a year to become effective and injections (""shots"") are usually required for 3-5 years."
Allergy immunotherapy
Stimulation of the immune system with gradually increasing doses of the substances to which a person is allergic. The aim is to modify or stop the allergy by reducing the strength of the IgE response. This form of treatment is very effective for allergies to pollen, mites, animal dander, and especially stinging insects. Allergy immunotherapy usually takes six months to a year to become effective, and injections are usually required for three to five years.
Allergy scratch test
Test done on the skin to identify the allergy substance (the allergen) that is the trigger for an allergic reaction. A small amount of the suspected allergy-provoking substance is placed on the skin. The skin is then gently scratched through the small drop with a special sterile needle. If the skin reddens and, more importantly, if it swells, then the test is read as positive and allergy to that substance is considered probable.
Allergy shots
See Allergy desensitization.
Allergy skin test
Test done on the skin to identify the allergy substance (the allergen) that is triggering the allergic reaction. A small amount of the suspected allergy-provoking substance is placed on the skin. The skin is then gently scratched through the small drop with a special sterile needle. If the skin reddens and, more importantly, if it swells, then the test is read as positive and allergy to that substance is considered probable.
Allergy testing
Tests (often skin tests) to determine a person?s reaction to some foreign substances that are normally harmless, but that produce reaction in some individuals.
Allergy to cockroaches
A condition that manifests as an allergic reaction when one is exposed to tiny particles from cockroaches. Asthma can be due to exposure to cockroach allergens (allergy-provoking substances). These substances are the proteins shed or excreted by the cockroaches.
Allergy, cow milk
"Casein and whey are the two major proteins of human milk and most milk-based formulas. Some (less than 8% of) infants have a true allergy to the cow proteins that are in milk-based formulas. Infants with true cow milk allergy can develop abdominal pain, diarrhea, rectal bleeding, skin rash, and wheezing when given milk- based formulas. These symptoms will disappear as soon milk- based formula is removed from the diet. (Allergy to cow milk protein is different from lactose intolerance). The treatment of cow milk protein allergy involves using formulas that contain no cow milk, or using formulas that contain ""predigested"" casein and whey proteins. The predigesting process breaks the whole proteins into smaller pieces or into amino acids. The amino acids and smaller protein pieces are non-allergenic (do not cause allergy). Soy protein formulas contain no cow milk, and are reasonable alternatives for infants with true cow milk allergy. However, some infants have allergy to both cow milk and soy proteins. These infants require a formula in which the cow milk protein (casein) has been ""predigested"" and specific amino acids added to provide a formula that can provide proper nutrition.
Allergy, honey bee
See: Honey bee allergy.
Allergy, peanut
See: Peanut allergy.
PREVIOUS AND NEXT TERMS--------------------------------------
Alkyl group
In chemistry, a group of atoms derived from an alkane (a hydrocarbon with no carbon-to-carbon multiple bonds) by the loss of a hydrogen atom.
ALL (acute lymphoblastic leukemia)
Acute lymphoblastic leukemia, also less often called acute lymphocytic leukemia. See: Acute lymphoblastic leukemia.
Allele
An alternative form of a gene. One of the different forms of a gene that can exist at a single locus (spot on a chromosome). Also one of the different forms of any segment of a chromosome.
Allergic conjunctivitis
Inflammation of the whites of the eyes (the conjunctivae) with itching and redness of the eyes and tearing, due to allergy.
Allergic contact dermatitis
A red, itchy, weepy reaction where the skin has come into contact with a substance that the immune system recognizes as foreign, such as poison ivy, poison oak or poison sumac or certain preservatives in creams and lotions. This type of reaction reflects a specific sensitivity or allergy to a specific substance. Also called allergic contact eczema.
Allergic contact eczema
Allergic granulomatosis
A disease (also often called the Churg-Straus syndrome) characterized by inflammation of the blood vessels in persons with a history of asthma or allergy.The symptoms of the Churg-Strauss syndrome include fatigue, weight loss, inflammation of the nasal passages, numbness, and weakness. The ultimate test for the diagnosis of Churg-Straus syndrome is a biopsy of involved tissue. Treatment of Churg-Strauss syndrome involves stopping inflammation and suppressing the immune system. The Churg-Straus syndrome is named for the American pathologists Jacob Churg and Lotte Straus.
Allergic granulomatous angiitis
See: Churg-Strauss syndrome.
Allergic purpura
See: Sch”nlein-Henoch purpura.
Allergic rhinitis, perennial
Allergic rhinitis (hay fever) that occurs throughout the year.
Allergic rhinitis, seasonal
Allergic rhinitis (hay fever) which occurs during a specific season.
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This dictionary contains 19186 terms.
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