What are the reactions of hypersensitivity?
hypersensitivity or allergies damage the reactions of the body's body to a specific substance. The body usually excludes antibodies, cells produced by bone wood and other cells to fight foreign substances. Once a foreign substance enters the body, specific antibodies are produced to neutralize or kill them. These antibodies are able to recognize a foreign substance during subsequent expositions. However, some individuals become sensitive to a particular substance, leading to the occurrence of hypersensitivity reactions during the second contact and every time they contact a criminal or allergen.
Individuals with a family history of allergy have higher risks of developing hypersensitivity reactions. Environmental factors can also bring a condition such as early exposure to an incident substance or substance. The change in the season also often triggers many hypersensitive reactions in vulnerable wolves, especially children with allergies to pollen and homemade dust.
There are four known types of hypersensitive reactions. The first type is the immediate hypersensitivity reaction, which often represents symptoms of allergy within minutes of exposure. It often occurs on allergens such as animal robber, homemade dust and food such as peanuts and eggs. Conditions showing type I reactions include rhinitis or allergic rhinitis and urticaria characterized by redness, itching and swelling of the skin. Anaphylactic shock, also in type I, is a fatal reaction that causes problems and breathing problems, fainting, low blood pressure and can even lead to death if it is not managed soon. Anaphylactic shock is often caused by the point of bees and the administration of drugs such as antibiotics and hormones.
type II reactions are reactions mediated by antibody or cytotoxic hypersensitivity of Reactions. This generally occurs when tissues or organs in the body are destroyed due to the action of antibodies fighting the criminals. Type II conditions include hyperthyroidismor excessive production of thyroid hormones; Hemolytic anemia induced by drug or destruction of red blood cells in response to the drug; and GoodPasture syndrome, a rare autoimmune disease affecting the lungs and kidneys. Acute rheumatic fever is another reaction of type II. It is manifested by inflammation of the heart muscles after Streptococcus bacteria infection.
in responses mediated by the immune complex or type III, a complex of foreign substances and antibodies, usually deposits on the organ, causing damage to the organ in this process. Examples of conditions for type III include rheumatoid arthritis, characterized by stiffness and joint pain; and systemic lupus erythematosus, autoimmune disease manifested with a butterfly rash on the face, fatigue and kidney inflammation. Poststreptococcal glomerulonephritis, also according to type III, is in the kidneys the deposit of the bacterial complex of antibodies and bacteria Streptococcus, usually after the neck pain. Often results in kidney inflammation manifested by the presence of blood in the urine, menMary urine, fever and swelling.
delayed hypersensitivity or type IV response usually occurs for several hours or even more than one day after exposure to a foreign substance or organism. The best example is a tuberculosis test. A small amount of antigen is injected in a small area of skin, which usually becomes red and swollen in a few hours or up to 72 hours later if the individual has been exposed to an organism causing tuberculosis.