Figure 3From: Different amounts of protein-bound citrulline and homocitrulline in foot joint tissues of a patient with anti-citrullinated protein antibody positive erosive rheumatoid arthritisResults of the HPLC-analysis of citrulline and homocitrulline. The auto-integrated HPLC peak areas of A) citrulline and B) homocitrulline in the six samples analyzed from each of the eight removed foot joint tissues. In the first operation tissue A was non-erosive and tissue B was from an erosive location.Back to article page