Fig. 4From: The blood fluke Schistosoma mansoni cleaves the coagulation protein high molecular weight kininogen (HK) but does not generate the vasodilator bradykininBradykinin detection. Bradykinin generated following incubation of HK with either male schistosomes (HK + males) or with pure human kallikrein (HK + Kallikrein) or alone (HK) for 24 h at 37oC. Positive (+) and negative (-) controls used in this ELISA assay are bradykinin, 2.8 nM and 0 nM. (Mean +/- SD, n = 3)Back to article page