Figure 4From: Lung inflammation changes and oxidative stress induced by cigarette smoke exposure in guinea pigs affected by Zataria multiflora and its constituent, carvacrolThe level of thiol group in BALF of control, COPD, and COPD treated with dexamethasone, three concentrations ofZ. multiflora(a), and three concentrations of carvacrol (b). ###; p < 0.001 compared to control and **; p < 0.01, ***; p < 0.001 compared to non-treated COPD group.Back to article page