Adjuvant Effects of Lavandula angustifolia Oil in Experimental Carrageenan-Induced Thrombosis

Antinociceptive, sedative, anti-inflammatory, and antioxidant effects of lavender oil (LO) have been documented. The aim of our study was to evaluate the adjuvant effects of pretreatment with LO compared to standard treatment (low molecular weight heparin) in thrombosis. We evaluated the effects of two doses of LO in addition to nadroparin calcium (NC) on experimentally induced thrombosis in rats. The groups were as follows: the control (C) group received intraperitoneal (i.p.) saline and vehicle (DMSO), the thrombosis (T) group received saline plus vehicle pretreatment, nadroparin calcium (NC) was administrated subcutaneously (s.c.), TNCL1 and TNCL2 received pretreatment with LO (TNCL1—100 mg/kg body weight (b.w.) i.p. and TNCL2—200 mg/kg b.w. i.p. and NC s.c.). Thrombosis was successfully obtained in all groups, except the C group. Statistically significant differences between groups (p-values < 0.001) were found for the levels of oxidative stress biomarkers (malondialdehyde, nitric oxide, and total oxidative stress) and antioxidant parameters (total antioxidant capacity and thiols), TNF-α, MCP-1, and RANTES. Dose-dependent effects are seen on the biomarkers under evaluation, with higher LO doses producing the best outcomes. When compared to the group receiving standard treatment (NC alone), the LO pretreatment led to an increase in antioxidant levels (p-values < 0.001) and a decrease in oxidative stress and pro-inflammatory levels (p-values < 0.001). Lavender oil associated with NC treatment alleviates the inflammatory components of experimental carrageenan-induced thrombosis in rats by decreasing oxidative stress and inflammatory cytokines and improving antioxidant activity.