WordNet

a result; "this situation developed in response to events in Africa"
a phrase recited or sung by the congregation following a versicle by the priest or minister
the manner in which an electrical or mechanical device responds to an input signal or a range of input signals
characterized by or caused by allergy; "an allergic reaction"
having an allergy or peculiar or excessive susceptibility (especially to a specific factor); "allergic children"; "hypersensitive to pollen" (同)hypersensitive, hypersensitized, hypersensitised, sensitized, sensitised, supersensitive, supersensitized, supersensitised

PrepTutorEJDIC

〈C〉(…に対する)『返事』,『返答』《+『to』+『名』》 / 〈C〉〈U〉(…に対する)『反応』,『反響』《『to』+『名』》 / 〈C〉応答歌,応唱(牧師にならって合唱隊・会衆が短い祈り・歌を応答すること)
アレルギー性の;(…に)アレルギーを起こす《+『to』+『名』》 / 《補語にのみ用いて》《話》(…に)神経過敏の,(…が)大きらいの《+『to』+『名』(do『ing)』》

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/10/03 12:23:41」(JST)

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An allergic response is a hypersensitive immune reaction to a substance that normally is harmless or would not cause an immune response in everyone. An allergic response may cause harmful symptoms such as itching or inflammation or tissue injury.

Mechanism

Allergies are an abnormal immune reaction. The human immune system is designed to protect the body from potential harm and in people who have allergies the immune system will react to allergens (substances that trigger an immune response).

The immune system will produce immunoglobulin E, IgE, antibodies for each allergen. The antibodies will cause cells in the body to produce histamines. These histamines will act on different areas of the body (eyes, throat, nose, gastrointestinal tract, skin or lungs) to produce symptoms of an allergic reaction.

The allergic response is not limited to a certain amount of exposure. If the body is exposed to the allergen multiple times the immune system will react every time the allergen is present.

The reason why people get allergies is not known. The allergens are not passed down through generations. It is believed if parents have allergies the child is more likely to be allergic to the same allergens.

Some common symptoms include itchiness, swelling, running nose, watery eyes, coughing, wheezing, trouble breathing, hives, rashes, mucus production, or a more severe reaction anaphylaxis. Allergic responses and the severity vary from person to person.

Many substances can trigger an allergic reaction. Common triggers of a reaction include foods, likes nuts, eggs, milk, gluten, fruit and vegetables; insect bites from bees or wasps (often a severe response occurs); environmental factors such as pollen, dust, mold, plants like grass or trees, animal dander; medications or chemicals. Some people experience an allergic response to cold or hot temperatures outside, jewelry or sunlight.

There are daily treatments to reduce the severity of the allergic response. Often these treatments include an antihistamine oral pill, nasal spray, or eye drops. Other treatments include an allergy shot, which keep the allergic response to a minimum. For more severe reactions an epinephrine injection is carried around. This injection will be taken if the person is going into anaphylactic shock. The best treatment is avoidance of each allergen.

References

1) Allergies (2011) reviewed by A.D.A.M. A.D.A.M medical encyclopedia

2) Allergies.(2009) reviewed by Geimeier W J. Teen Health

3) Sicherer S, Sampson HA. Journal of Allergy and Clinical Immunology 2010 Feb 125 (2 suppl2) S116-25.

External links

Allergic response entry in the public domain NCI Dictionary of Cancer Terms

This article incorporates public domain material from the U.S. National Cancer Institute document "Dictionary of Cancer Terms".

UpToDate Contents

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English Journal

Specific IgG and IgA of common foods in Chinese children with eczema: friend or foe.

Hon KL1, Poon TC, Pong NH, Wong YH, Leung SS, Chow CM, Leung TF.
The Journal of dermatological treatment.J Dermatolog Treat.2014 Dec;25(6):462-6. doi: 10.3109/09546634.2013.848262. Epub 2013 Nov 15.
BACKGROUND: Specific immunoglobulins G and A (IgG and IgA) for common food items have been extensively measured as surrogate markers of food allergy, and dietary avoidance based on the test results advocated.AIM: We reviewed the prevalence of specific food IgG and IgA in children with eczema and eva
PMID 24237254

Efficacy of leukotriene receptor antagonist with anti-H1 receptor antagonist plus anti-H2 receptor antagonist for treatment of refractory chronic idiopathic urticaria.

Wan KS1, Chang YS.
The Journal of dermatological treatment.J Dermatolog Treat.2014 Dec;25(6):459-61. doi: 10.3109/09546634.2013.849791. Epub 2013 Nov 5.
BACKGROUND: The efficacy of the combination of leukotriene receptor antagonist (LRA) and H1 antihistamine was similar to the synergistic regimen of H1 and H2 antihistamine for treatment of chronic idiopathic urticaria (CIU). However, the effective rates of these two regimens were only 53.3% and 63.3
PMID 24192062

Gender differences in adverse drug reactions in dermatological patients in west Sicily: an epidemiological study.

Pistone G1, Gurreri R, Alaimo R, Curiale S, Bongiorno MR.
The Journal of dermatological treatment.J Dermatolog Treat.2014 Dec;25(6):510-2. doi: 10.3109/09546634.2013.814755. Epub 2013 Jul 5.
PURPOSE: The purpose of this study was to show that gender also plays an important role in pharmacokinetics, pharmacodynamics, and drug toxicity. It is only fair to take into account the so-called "gender-based medicine."METHODS: We again selected admission for cutaneous adverse drug reaction (CADRs
PMID 23763287

Japanese Journal

Food and Natural Materials Target Mechanisms to Effectively Regulate Allergic Responses (Nutrition and Food for Longevity : For the Well-Being of All : Proceedings of the 12th Asian Congress of Nutrition)

SHIN Hee Soon,SHON Dong-Hwa
Journal of nutritional science and vitaminology 61(Suppl.), S109-111, 2015-05
NAID 40020444322

Inhibitory/Suppressive oligodeoxynucleotide nanocapsules as simple oral delivery devices for preventing atopic dermatitis in mice

Wang Yeqin,Yamamoto Yoshinari,Shigemori Suguru,Watanabe Takafumi,Oshiro Kazushi,Wang Xinyu,Wang Pengfei,Sato Takashi,Yonekura Shinichi,Tanaka Sachi,Kitazawa Haruki,Shimosato Takeshi
MOLECULAR THERAPY 23(2), 297-309, 2015-02
… ODN nanocapsules (ODNcaps) were directly delivered to the PPs through oral administration and were taken up by macrophages in the PPs, where they induced an immune response. … The results of our iSG3cap oral delivery experiments suggest that iSG3 may be useful for treating allergic diseases. …
NAID 120005539426

Induction of humoral responses by epidermal Langerhans cells

Nagao Keisuke
Inflammation and Regeneration 35(1), 023-027, 2015
… This process, which we refer to as "preemptive" immunity, might also be relevant for percutaneous sensitization in allergic skin diseases. …
NAID 130004943878