Figure 1. Comparison of S100-MP determinations from serum and plasma.
FACS analysis revealed that both fresh plasma and stored serum samples can be used reliably to determine the levels of CD4+, CD14+ and iNKT MP. In agreement with previous reports, levels of platelet-derived MP (CD41+) were significantly decreased in serum16. n indicates the number of serum/plasma pairs, the bold number the difference (in percent) between the means (not bold) of the measured MP population in serum vs. plasma. Differences (percent in bold) between serum and plasma were calculated using the following formula: (mean plasma MP – mean serum MP)/ mean serum MP.
