Proteins that are secreted into the blood in increased or decreased quantities by hepatocytes in response to trauma, inflammation, or disease. These proteins can serve as inhibitors or mediators of the inflammatory processes. Certain acute-phase proteins have been used to diagnose and follow the course of diseases or as tumor markers.

Synonyms: Reactants, Acute Phase, Acute Phase Reactants, Glycoprotein, Acute-Phase, Acute-Phase Proteins, Acute Phase Protein, Acute Phase Proteins, Protein, Acute-Phase, Acute-Phase Reactants, Acute Phase Glycoproteins, 0, Glycoproteins, Acute-Phase, Acute-Phase Glycoprotein, Acute-Phase Glycoproteins, Acute Phase Reactant, Acute-Phase Reactant, Reactant, Acute-Phase, Phase Reactant, Acute, Reactants, Acute-Phase, Reactant, Acute Phase, Proteins, Acute-Phase, Acute-Phase Protein, Proteins, Acute Phase, Acute Phase Glycoprotein