Abstract
Melittin (MLT) (10 μg/paw) and D49 (0.4 μg/paw) were injected into the hind paw of male CD-1 mice and elicited 70–80% of maximal paw edema responses at 60 and 30 min after injection, respectively. D49 paw edema was significantly inhibited by anti-histamine/serotonin agents, a PAF antagonist, a PLA2 inhibitor, and some but not all 5-LO and CO inhibitors, indicating that this edema is produced by several classes of inflammatory mediators with mast cell degranulation apparently playing a major role. In contrast, MLT paw edema was not inhibited effectively using the same pharmacological agents except theophylline, suggesting it was elicited via a different sequence of inflammatory events. In summary, D49 and MLT paw edema models were found to be ineffective models to identify experimental PLA2 compounds in our laboratory.
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Hartman, D.A., Tomchek, L.A., Lugay, J.R. et al. Comparison of antiinflammatory and antiallergic drugs in the melittin- and D49 PLA2-induced mouse paw edema models. Agents and Actions 34, 84–88 (1991). https://doi.org/10.1007/BF01993245
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DOI: https://doi.org/10.1007/BF01993245