Figure 5From: Prolyl oligopeptidase is inhibited in relapsing-remitting multiple sclerosisEffect of DTT on prolyl oligopeptidase levels in plasma from healthy and RR-MS patients. POP activity in plasma from healthy controls (white bar) and RR-MS patients (gray bar) after plasma pre-incubation in the absence, or presence (diagonal pattern), of DTT (5 mM). n = 10, p-values, **, 0.0024, ***, 0.0004.Back to article page