To confirm our understanding of the effect of BbV on neutrophil function we decided to perform an experiment investigating the ability of BbV to induce IL-6 release. The results obtained indicate that BbV induced the release of this cytokine. Like IL-8 there is no data in the literature showing the effect of BbV on the production of IL-6 by isolated human neutrophils. Since BbV induces ROS production, we suggest that ROS may contribute to IL-6 release induced by BbV. Accordingly, the literature shows that intramuscular injection of B. asper venom induced an increase in IL-1beta and IL-6 in the muscle (Chaves et al., 2005). In addition, levels of proinflammatory cytokines IL-6 and TNF-a were significantly increased after B. asper venom injection (Zamunér et al., 2005). Recently, Corasolla Carregari et al. (2013) purified a new basic PLA2 Asp-49 from B. bilineata that induced an increase in vascular permeability and in serum cytokine levels (IL-6, IL-1 and TNF-a) in mice.