Figure 1.

Intact and split proinsulin in RA patients and controls. Left graph (data plot on left axes) shows absolute values of intact proinsulin (black), split proinsulin (gray), and total insulin (white) in controls, non-glucocorticoids rheumatoid arthritis patients (GC-RA), rheumatoid arthritis patients taking glucocorticoids (GC+RA), and total rheumatoid arthritis patients (Total RA). Right graph (data plot on right axes) shows split proinsulin to C-peptide ratio (%) in the same groups. Significant P values are detailed.

Ferraz-Amaro et al. Arthritis Research & Therapy 2013 15:R17   doi:10.1186/ar4149
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