A serum protein, alpha globulin in the blood.
Protein found in plasma that binds hemoglobin and clears it from wounds; the amount of haptoglobin is increased in certain inflammatory diseases, decreased in hemolytic anemia.
A blood protein that combines with hemoglobin; a low level indicates a breakdown of red blood cells, which may occur in certain diseases, snakebite, or drug ingestion. Levels are increased in some inflammatory conditions.
A protein present in blood plasma that binds with free hemoglobin to form a complex that is rapidly removed from the circulation. Depletion of plasma haptoglobin is a feature of anemias in which red blood cells are destroyed inside the circulation with the release of hemoglobin into the plasma.
A mucoprotein to which hemoglobin released from lysed red cells into plasma is bound. It is increased in certain inflammatory conditions and decreased in hemolytic disorders.
A blood protein produced by the liver, primarily serving the purpose of conserving iron by binding to any hemoglobin released from red blood cells.