Fig. 1
From: S100A4 is elevated in axial spondyloarthritis: a potential link to disease severity
Increased circulating levels of S100A4 in axSpA patients. The levels of plasma S100A4 are higher in patients with axial spondyloarthritis (axSpA) compared to healthy controls and in axSpA patients without syndesmophytes (nr-axSpA + AS I) compared to those with the presence of syndesmophytes (AS II). Horizontal bars show the median with whiskers representing the interquartile range (IQR). AS I, ankylosing spondylitis without spinal involvement; AS II, ankylosing spondylitis with the presence of syndesmophytes