Fig. 1
From: Chemokine CXCL13 in serum, CSF and blood–CSF barrier function: evidence of compartment restriction
CXCL13 ELISA results. a Scatterplot showing the relation between CSF CXCL13 ELISA concentrations of the diagnostic and the banked samples. b Histogram illustrating the differences in CXCL13 concentrations between CSF (white) and blood (grey) across negative (< 30 pg/ml), low (L, 30–99 pg/ml), medium (M, 100–250 pg/ml) and high (H, > 250 pg/ml) categories and negative subgroups “< 30/N” (N, normal QAlb), “< 30/P” (P, pathological QAlb). Bars represent medians and IQR. Significance values indicate differences of CSF and serum CXCL13 concentrations within categories and subgroups. IQR interquartile range, QAlb albumin quotient