ABSTRACT

Aim

The purpose of this study was to determine the effects of the plant extract, which is obtained from Onosma nigricaule due to the oxidation parameters caused in mice by Malathion that is used as an insecticide in agriculture, on leptin in renal tissues in an immunohistochemical way.

Material-Methods

A total of 48 male mice were used in our study. 6 groups were determined as the control (group 1), maize oil which is the transport agent of malathion (group 2), normal saline which is the transport agent of plant extract (group 3), Onosma nigricaule (group 4), malathion (group 5) and Onosma nigricaule plant extract + malathion (group 6) group. The localization of leptin in the renal tissue was determined using the method of Streptavidin-Biotin- Peroxidase. Hematoxylin-eosin and triple staining methods were used for histological and pathological examinations.

Results

No lesion was determined in renal tissues of the control group, normal saline group, maize oil group, Onosma nigricaule malathion and onosma nigricaule + malathion groups. Leptin immunoreactivity was determined with a weak intensity in renal tubulus proximalis and distalis epithelial cells of mice in the onosma nigricaule group, and onosma nigricaule + malathion group and with a high intensity in tubulus proximalis of other groups.

Conclusion

This study conducted on mice revealed that malathion, which is commonly used as insecticide in Turkey, affects leptin activities in renal tissue of mice.