“…Over the past decade, proteomics have yielded potential new candidates in the quest for better biomarkers for RA, including the S100 proteins, serum amyloid A, alpha 1-antitrypsin, and apolipoproteins in the blood [ 6 ]. In principle, carbohydrates, lipids and proteins (including enzymes, matrix proteins or their neoepitopes, autoantibodies, acute-phase proteins, chemokines, growth factors, cytokines and their inhibitors, and receptors) can be biomarkers for inflammation, connective tissue destruction, diagnosis and prognosis in RA (reviewed by Carrasco and Barton [ 7 ]).…”