ALLERGIES
Allergy is a disease of the immune system, which is a kind of hypersensitivity reaction. Allergic reactions are usually harmless environmental substances known as allergens these reactions are acquired, predictable and fast. Strictly, allergy is one of four forms of hypersensitivity and is called type I (or immediate) hypersensitivity. It is characterized by excessive activation of certain white blood cells called mast cells and basophils kind of IgE is known, when the extreme inflammatory reaction. Common allergic reactions are eczema, hives, hay fever, asthma, food allergies, and toxic reactions to stinging insects like wasps and bees.
Mild allergies like hay fever are very common in the human population and cause symptoms such as allergic conjunctivitis, itchy and runny nose. Allergies can play an important role in diseases such as asthma. In some people, severe allergies or dietary allergens or environmental agents may cause fatal anaphylactic reactions.
Several tests for diagnosing allergic conditions today, a control skin for responses to known allergens or analyzing the presence of blood, and levels of allergen-specific IgE. Avoid allergens, allergy treatments are the use of antihistamines, steroids or other oral medications, therapy and desensitize the immune response to allergens and goal-oriented.
PATHOPHYSIOLOGY
Pathophysiology of allergic reactions can be divided into two phases. The first is an acute reaction, which takes place as soon as they are exposed to the allergen. At this stage, it can either decrease or proceed at the end of the reaction, which may extend significantly the symptoms of a response and cause tissue damage. Proteins are unique properties that allow them to become allergic. Forces to stabilize the secondary structure and quaternary protein resistant to degradation. Later, they interact with cells inappropriate IgE immune system.
Most of the potentially allergenic proteins can not survive in the environment destroys the digestive system and others are harmless, but they have a solid structure to withstand the acidic environment of the digestive system and are sometimes marked by the immune system as harmful. In other reactions, toxins bind to a protein present. The immune system sees the protein as harmful to the body, and rejects the protein, causing a skin reaction or systemic.
Allergy is a disease of the immune system, which is a kind of hypersensitivity reaction. Allergic reactions are usually harmless environmental substances known as allergens these reactions are acquired, predictable and fast. Strictly, allergy is one of four forms of hypersensitivity and is called type I (or immediate) hypersensitivity. It is characterized by excessive activation of certain white blood cells called mast cells and basophils kind of IgE is known, when the extreme inflammatory reaction. Common allergic reactions are eczema, hives, hay fever, asthma, food allergies, and toxic reactions to stinging insects like wasps and bees.
Mild allergies like hay fever are very common in the human population and cause symptoms such as allergic conjunctivitis, itchy and runny nose. Allergies can play an important role in diseases such as asthma. In some people, severe allergies or dietary allergens or environmental agents may cause fatal anaphylactic reactions.
Several tests for diagnosing allergic conditions today, a control skin for responses to known allergens or analyzing the presence of blood, and levels of allergen-specific IgE. Avoid allergens, allergy treatments are the use of antihistamines, steroids or other oral medications, therapy and desensitize the immune response to allergens and goal-oriented.
PATHOPHYSIOLOGY
Pathophysiology of allergic reactions can be divided into two phases. The first is an acute reaction, which takes place as soon as they are exposed to the allergen. At this stage, it can either decrease or proceed at the end of the reaction, which may extend significantly the symptoms of a response and cause tissue damage. Proteins are unique properties that allow them to become allergic. Forces to stabilize the secondary structure and quaternary protein resistant to degradation. Later, they interact with cells inappropriate IgE immune system.
Most of the potentially allergenic proteins can not survive in the environment destroys the digestive system and others are harmless, but they have a solid structure to withstand the acidic environment of the digestive system and are sometimes marked by the immune system as harmful. In other reactions, toxins bind to a protein present. The immune system sees the protein as harmful to the body, and rejects the protein, causing a skin reaction or systemic.
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