Further, the concentration of miR-155 was found correlated with CRP concentrations and BASDAI (Bath Ankylosing Spondylitis Disease Activity Index) and mSASSS (modified Stoke Ankylosing Spondylitis Spinal Score) values, suggesting a plausible utility for miR-155 as a marker of disease activity. This evidence concerns the gene CRP and spondylitis.