Know The Kinds of Allergens
Allergy, rather than a disease, is determined as the body’s hypersensitivity to a substance or item that when touched, ingested or smell triggers certain characteristic symptoms.
The word allergy comes from the Greek allergies?, And this in turn all voices, another and ergs, work, giving the meaning of “strange reaction,” the allergy is caused by certain elements called allergens and the symptoms produced are called allergic reactions.
When faced with a body allergic to the allergenic substance, and is constant exposure to it, the immune system generates an antibody response by releasing substances such as histamine, which produce symptoms in the subject themselves of an allergic reaction.
Types of allergy
Scientific classification
They have failed to identify and describe four types of hypersensitivity reactions or allergies. The four basic types are based on the classification of Coombs and Gell, 1963 are:
Type I or Immediate
Also known as anaphylactic hypersensitivity and inflammatory reactions are immediate establishment which arouse the action of the antibody IgE (immunoglobulin E) and overexposure generates the release of some mediators such as histamine, triggering a wide range of reactions known.
Type II or Cytotoxic
This type of allergy is caused due to pre-formed antibodies that bind to a particular cell, is mediating the IgM or IgG antibodies that bind to the antigen carried the complement system and as a result certain particles released infiltrate the target cell and destroy it.
Type III or immune complex
In this type of allergy, blood is the place to find the antigens with IgG and IgM antibodies form immune complexes that lodge in body tissues desenacdenando some reactions that may take several hours to develop.
Type IV or delayed
This allergy is known as late or delayed because the reaction takes 2 to 3 days to appear. The most notable difference is that they produce antibodies but not by immune cells, also known as T cells that attack infected cells.
For the type of allergen
Allergies are hypersensitivity reactions of such organism to an element that produces a warning or a threat, these elements may be of several types having the following:
Pollen Allergy
The so-called hay fever, or formerly “hay fever” is one of the most common allergies when it comes to outdoor areas, which manifests with allergic rhinitis in the sufferer, possibly mistaken for a cold.
Allergy to dust mites
This type of allergy, commonly known as “allergy to dust,” is a mite allergens, which are responsible for most respiratory allergies and are housed in damp and warm.
Animal Allergy
This allergy is caused either by the hair or certain substances from the skin of some animals that can produce everything from symptoms to skin manifestations respitatorios somewhat sharper.
Drug allergy
Some medications such as antibiotics, analgesics or other drugs may trigger allergies and skin symptoms and even anafliƔxicos.
Food allergy
This allergy, as its name implies, is caused by eating food or contact with allergens, especially shellfish, or dairy products that can cause hincazones on the lips, skin reactions and respiratory problems.
Allergy to insect bites
This is an allergy uncommon but arises due to inoculation of the poison of some kind of insect, which can cause swelling and other symptoms.
Allergy Symptoms
Among the wide variety of points that are affected by allergic reactions include skin symptoms, lung, eye, ENT, gastrointestinal and hematological among others, some of the symptoms that usually occur are:
Anaphylaxis
Also known as anaphylactic shock or shock, is an immune reaction that is triggered to some antibiotics or drugs and this can be lethal.
Allergic rhinitis
It exists within the different types of rhinitis, allergic rhinitis, the call is generated by dust, pollen or cold and that affects the nasal mucosa.
Food allergy
Its main signs of gastrointestinal symptoms such as vomiting, diarrhea and abdominal pain.
Atopic Dermatitis
This symptom is manifested frequently by food allergens or exposure to aeroallergens in both adults and children.
Conjunctivitis
More information on conjunctivitis
Conjunctivitis is one of the ocular symptoms and is defined as inflammation of the conjunctiva, a membrane lining the inside of the eyelid and is manifested by redness of the eyeball and constant watering.
Asthma
More about Asthma
This reaction is a respiratory disease that affects the lungs and for which the tissues of the bronchial mucosa are closed, preventing the passage of air and causing the sensation of choking and wheezing chest.