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Allergic Reactions
...  number of reasons. Almost anything can trigger them, so they are actually hard to prevent and to avoid. Hypersensitivity reactions usually take place when your body’s white blood cells produce antibodies to fight against antigens. The antibodies try to detect and to destroy substances that can cause different illnesses and diseases by releasing substances called mediators. Mediators affect  ...

Anaphylaxis
...  and most dangerous kind of allergic reactions. These reactions can be so severe that they are normally considered life threatening. An allergic reaction occurs whenever your immune system produces antibodies to defend against any harmful substance. Whenever these substances provoke an allergic reaction, they are known as allergens. The chemicals that are produced by these antibodies may  ...

Serum Sickness
...  sickness is an immune system reaction to proteins found in antiserum derived from an animal source. The antiserum is the liquid part of the blood where antibodies are found. These components help your body protect itself against infectious or poisonous substances, and are typically used as antitoxins or antivenom. This condition is frequently experienced by individuals older than 15 years  ...

Rhinitis
...  allergens to see which allergens produce undesirable reactions. Blood test could also be administered to the patient to measure the response of the immune system to several allergens. The amount of antibodies will be checked. A CT-scan could also be administered if the doctor suspects that the patient suffers from nasal polyps. Nasal polyps are unnecessary growth in the sinuses or in the nasal  ...

Blood Brain Barrier
...  the brain from bacterial infections. Because of its function, brain infection is very rare. However, the supposed protection can also be a problem if medication and drugs are to be administered. The antibodies and antibiotics are too large to cross the BBB, creating a challenge for physicians. Therefore, if you suffer from brain infections, it can be very difficult to treat due to the blood  ...


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