Effect on levels of plasma paraoxonase activity, high density lipoprotein and malondialdehide of bellis in cyprinus carpio

One of the most important causes of environmental pollution is pesticides widely used in agriculture . In this study, 24 fish (200-300 g) Cyprinus carpio from Islahiye Tahtakopru Dam were used. The fish were transported to the laboratory in polyethylene tanks for a period of 5 days (22–25 °C and normal photoperiod). Then they were divided into 3 groups of 24 fishes: A control group, 0.025 mg/L Bellis I and 0.050 mg/L Bellis II. After the end of 14 days of application, blood samples were taken from the fishes and the plasma were separated . Paraoxonase (PON1) activity, high density lipoprotein (HDL) and Malondialdehide (MDA) were analyzed in the obtained plasma samples. PON1 and HDL levels in control group was found statistically significantly higher than Bellis I and Bellis II group (p<0.001) While MDA level in control group was found Statistically significant lower than Bellis I and Bellis II group (p<0.05). In conclusion, it is thought that Bellis may causes changes in PON1 enzyme activity, HDL and malondialdehyde levels which are involved in the detoxification of pesticides in fish. Keywords: Paraoxonase, Malondialdehide, High density lipoprotein, Bellis, Cyprinus carpio