The effect of carvacrol on oxidative stress parameters in CCl4-induced liver fibrosis. TAC total antioxidant capacity (a), –SH total thiol group (b), TOS total oxidant status (c), MDA malondialdehyde (d). FC fibrotic control, T70 CCl4 + carvacrol 70 mg/kg, C70 olive oil + carvacrol 70 mg/kg, VC olive oil alone, HC normal saline alone. ♦: compared to FC group, ϕ: restore to HC group [there was no significant difference to HC group (p > 0.05)]. Data were expressed as Mean ± SEM. +p < 0.01; #p < 0.001