ASTHMA
Asthma is an inflammatory disease of the lung, occurring as an allergic reaction to specific allergens such as dust mites, pollen and animal dander that would otherwise be harmless to individuals without asthma. Asthma can be triggered by exercise and air pollutants. The hypersensitivity involved in asthma occurs upon re exposure to the allergen.
When the B cells in the body first identify and encounter the allergen, they differentiate to form plasma cells responsible in the creation of antibodies these antibodies which bind to mast cells. Upon re exposure to the allergen, the allergen binds to the antibodies on the mast cells, causing them to be primed or stimulated. As a result, an asthma attack occurs where histamine is released from the mast cells and exerts its effects on the respiratory bronchioles, causing the restricting of airways and an accumulation of mucus and fluid.
An asthma attack affects the ability to breathe, causing shortness of breath, coughing and wheezing. A sever asthma attack can lead to death. There is no cure for asthma however there is treatment for it. Treatment options suppress the inflammatory allergic response and expands the airways. Asthmatics inhale Beta2-adrenergic agonist, a chemical compound which binds to receptors located on cells known as beta2-adrenergic receptors to initiate a signal transduction pathway where a relay of events occurs, amplifying the message from an external source to an internal source to eventually cause the opening of potassium channels and ultimately cause the relaxation of smooth muscles
Asthma is an inflammatory disease of the lung, occurring as an allergic reaction to specific allergens such as dust mites, pollen and animal dander that would otherwise be harmless to individuals without asthma. Asthma can be triggered by exercise and air pollutants. The hypersensitivity involved in asthma occurs upon re exposure to the allergen.
When the B cells in the body first identify and encounter the allergen, they differentiate to form plasma cells responsible in the creation of antibodies these antibodies which bind to mast cells. Upon re exposure to the allergen, the allergen binds to the antibodies on the mast cells, causing them to be primed or stimulated. As a result, an asthma attack occurs where histamine is released from the mast cells and exerts its effects on the respiratory bronchioles, causing the restricting of airways and an accumulation of mucus and fluid.
An asthma attack affects the ability to breathe, causing shortness of breath, coughing and wheezing. A sever asthma attack can lead to death. There is no cure for asthma however there is treatment for it. Treatment options suppress the inflammatory allergic response and expands the airways. Asthmatics inhale Beta2-adrenergic agonist, a chemical compound which binds to receptors located on cells known as beta2-adrenergic receptors to initiate a signal transduction pathway where a relay of events occurs, amplifying the message from an external source to an internal source to eventually cause the opening of potassium channels and ultimately cause the relaxation of smooth muscles