Αποτελέσματα Αναζήτησης
Macrophages are also "antigen-presenting cells", presenting the foreign proteins (antigens) to other immune cells, triggering an immune response.
Plasma proteins, sometimes referred to as blood proteins, are proteins present in blood plasma. They serve many different functions, including transport of lipids, hormones, vitamins and minerals in activity and functioning of the immune system.
Aside from the sugar (glycan or carbohydrate) antigens, the red blood cell membrane contains three types of protein that carry blood group antigens: single-pass proteins, multi-pass proteins, and glycosylphosphatidylinositol (GPI)-linked proteins.
In the case of a foreign red blood cell antigen, the patient's pre-existing antibodies bind to the antigen, coating the donor RBCs. Some types of antibody may activate the complement cascade, a series of enzyme-driven reactions involving protein fragments.
Plasma is the liquid component of blood, in which the red blood cells, white blood cells, and platelets are suspended. It constitutes more than half of the blood's volume and consists mostly of water that contains dissolved salts (electrolytes) and proteins. The major protein in plasma is albumin.
20 Οκτ 2024 · Antibodies may be induced by many foreign substances in addition to microorganisms; immunoglobulins are involved in some hypersensitivity and allergic reactions. Other plasma proteins are concerned with the coagulation of the blood. Many proteins are involved in highly specific ways with the transport function of the blood.
2 ημέρες πριν · Blood, fluid that transports oxygen and nutrients to cells and carries away carbon dioxide and other waste products. Blood contains specialized cells that serve particular functions. These cells are suspended in a liquid matrix known as plasma. Learn more about the components and function of blood.
