 Allergies! [25]
Allergy is a disorder of the immune system often also referred to as atopy.
Antidepressants [24]
An antidepressant is a psychiatric medication used to alleviate mood disorders, such as major depression and dysthymia.
Arthritis [23]
Arthritis is a group of conditions involving damage to the joints of the body.
Cancer [28]
Cancer is a class of diseases in which a group of cells display uncontrolled growth
Cardio & Blood [1]
Risk factors for heart disease: infections
Cholesterol [3]
A fat-like substance called a lipid. It is used to build cell membranes, hormones and bile acids
Diabetes [20]
The inability of the body to produce, or the inability to metabolize, the human hormone insulin; Diabetes insipidus, usually a disorder of the ...
Epilepsy [9]
Epilepsy is a common chronic neurological disorder characterized by recurrent unprovoked seizures
Gastrointestinal [4]
The digestive tract is the system of organs within multicellular animals that takes in food...
General Health [54]
The infant, child or young person?s current health condition
Herbal [30]
Herbal tea, herbal medicine
Hormonal [26]
Hormones - Proteins produced by organs of the body that trigger activity in other locations.
Men's Health [2]
For men on fitness, health, sex, caree
Pain relief [23]
Pain management is the medical discipline concerned with the relief of pain.
Skin care [23]
The skin is the outer covering of the body
Weight Loss [29]
Loss of body weight by dieting or due to various easting disorders or medical conditions.
Women's Health [31]
Find information on women's health issues, and lifestyle at the Women's Health
Fresh material  What are symptoms of endometriosis: dysmenorrhoea
→ More
Solutions to infertility: what you can do to help yourself
→ More
Endometriosis: the burden of guilt
→ More
Endometriosis: about suspected diagnosis
→ More
What are symptoms of endometriosis
→ More
The most popular materials [439 view]
Prostaglandins—the new hormones → More
[418 view]
Factors affecting fertility: environmental hazards → More
[365 view]
Occupational hazards that can affect fertility → More
[360 view]
Endometriosis: pain and emotional turmoil → More
[340 view]
Hysterectomy: prolapse → More
Awaiting moderation 56 Article |
How ige produces allergies HOW IGE PRODUCES ALLERGIES
Anyone who lives in a town or city will have been kept awake, at some time or another, by the sound of a burglar alarm ringing endlessly in an empty shop or house. The alarm is only meant to ring if someone breaks in, but it is triggered off by some other quite innocent event, such as a strong wind or the vibrations of a passing lorry. This is more or less what happens in the case of allergies. The mast cells, which are meant to respond to invasion by parasites, are triggered off by an innocuous substance such as eggs or cow's milk. But why should this happen?
The answer is that the body misguidedly makes IgE antibodies that fit the antigens in these substances. A very complex and intricate set of controls normally prevent the body from making IgE in response to such harmless materials, but in the allergic individual something goes awry and the control mechanisms break down.
In the case of Jane, her body had mistakenly made IgE antibodies to an antigen in peanuts, probably a protein. The strange symptoms that she experienced on eating peanuts were all produced by mediators released from her mast cells. Mast cells in the tissues of the mouth were triggered as soon as the food came into contact with them, producing symptoms almost immediately. Her lips and tongue swelled up because tiny blood vessels inside them became leaky, allowing fluid to seep out into the surrounding tissues.
The cause of Jane's collapse (anaphylactic shock) when she ate peanuts again was a sudden drop in blood pressure, likewise produced by the mediators. This time, it seems, more IgE was present and far more mediators released. By making the blood vessels all over her body expand, and at the same time become more leaky, the mediators left her without enough blood pressure to keep the vital organs functioning.
*34\180\8*
Allergies
«Canada Online Pharmacy»
 Print
Viewed: 107
| Keywords for this page: How ige produces allergies |
|
|
