Abstract
Objective: This study aimed to characterize Dumb cane extract nanoemulsion for injection preparation and test its activity as an inflammation-inducing agent in rat intraplantar with IL-6 and TNF-alpha parameters in blood serum as well as the swelling response in paw. Methods: Nanoemulsion was made from an emulsion base of olive oil, coconut oil, tween 80 propylene glycol, and water for injection, as well as varying concentrations of Dumb cane extract (1%, 2%, and 4%) using vortex mixing and sonication methods. The characterization included particle size, zeta potential, and polydispersity index using the Zetasizer tool. Induction was carried out intraplantar in male rats. The parameters observed were the volume of swelling in paw and IL-6 and TNF-alpha in blood serum. Results: Dumb cane extract nanoemulsion concentrations of 1%, 2%, and 4% have particle size characteristics in the range of 20.3±0.17–30.1±0.68 nm, and zeta potential -31.4±1.59–33.1±1.33 mV. Dumb cane nanoemulsion can induce intraplantar inflammation with high IL-6 and TNF-alpha levels, significantly different from normal controls. Volume swelling occurred 4 h after intraplantar induction at a nanoemulsion concentration of 4%. Conclusion: Dumb cane extract nanoemulsion can be an alternative agent for inducing intraplantar inflammation in rat models.
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