Background:
The pesticide paraquat is hazardous to both humans and animals. Lung
damage is a common complication of paraquat poisoning.
Objective:
This research analyzes the preventive properties of Origanum vulgare leaf extract against
paraquat-induced acute pulmonary toxicity and oxidative stress.
Methods:
In this experiment, the rats were assigned to five distinct groups. Group 1 served as the
control, group 2 got only 25 mg/kg bw paraquat, and groups 3, 4, and 5 received paraquat and Origanum
vulgare leaf extract at dosages of 200, 400, and 800 mg/kg bw, respectively. In rats, inflammation-
related indicators and oxidative stress were analyzed after therapy.
Results:
Compared with the control group, the levels of the serum PC, MDA, and inflammatory
markers such as TNF-α, IL-6, and IL-1β remarkably rose (p < 0.05) and the pulmonary contents of
the SOD, CAT, and vitamin C greatly decreased (p < 0.05) in the paraquat-only group. Origanum
vulgare leaf extract administration after paraquat exposure resulted in a substantial increase in lung
SOD, CAT, and vitamin C levels as well as a significant reduction in MDA, PC, and lung
inflammatory markers (TNF-α, IL-6, and IL-1β) gene expression relative to the paraquat-only group.
Conclusion:
Origanum vulgare leaf extract might be supplied to lessen the toxicity of paraquat,
based on the findings of this research, which indicated that Origanum vulgare leaf extract has antioxidant-
enhancing properties and can improve the antioxidant defense system.
other:
Ethic number: IR. SKUMS. REC. 1395. 151.