GlycA is a novel inflammatory marker, that combines the N-acetyl group signals of several acute phase glycoproteins and glycosylated lipoproteins. The molecules contributing to the GlycA signal are alpha-1-acid glycoprotein, alpha-1-antitrypsin, haptoglobin, transferrin, alpha-1-antimymotrypsin, and glycosylated lipoproteins. GlycA rises in inflammatory conditions both due to an increase in the concentration of acute phase glycoproteins and because of changes in their acetylation. The greatest acute phase protein contributor to the GlycA signal is alpha-1-acid glycoprotein. High triglyceride levels can also increase GlycA levels. The changes in GlycA have previously been primarily studied in humans.