Fig. 1

Differences in global DNA methylation between healthy controls (HC) and early rheumatoid arthritis (RA) patients. The percentage of 5-methylcytosine (5mC) over the total content of cytosine in total DNA of a T cells, b B cells, and c monocytes is shown. Each dot represents a subject. Horizontal bars with an empty square are means. Differences in (a) and (c) were significant, P < 0.05