Figure 1From: The interaction between C5a and sphingosine-1-phosphate in neutrophils for antineutrophil cytoplasmic antibody mediated activationPlasma levels of sphingosine-1-phosphate (S1P) in patients with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) at the active stage and in remission. (A) Plasma levels of S1P in AAV patients compared with normal controls. (B) Plasma levels of S1P in AAV patients at active stage and in remission.Back to article page