In vitro evaluation of glutathione implementation on oxidative dna damage and oxidant status in high glucose conditions

Aim: This study aimed to show the effects of glutathione, recognized by its antioxidant specialties, on the potential DNA damage (8-hydroxy-2- deoxyguanosine) and the antioxidant system changes upon its implementation in BHK-21 cells cultured with high glucose. Materials and Methods: BHK-21 cell line was regularly surpassed in vitro conditions (5% FBS, 10% horse serum, 1% L-Glutamine, 1% penicillin/ streptomycin in RPMI 1640 medium, and 5% CO2 and 95% humidity and 37ºC) incubated. The control group determined glucose's IC50 value based on the viability tests executed on MTT cells. Cells were seeded in plates as each would have 2x106 cells. The control, the test, and the crossbreed test (glucose; (285 mM), glutathione (250 &micro ,M)) groups were prepared. After 24 hours of incubation, trypsinized cells were designed for analysis through vitrification. In the lysate of the cell culture that was procured, Oxidative DNA damage, TAS, TSO, and OSI were measured by the spectrophotometric system with ELISA. Results: It was observed that 8-OHdG levels increased significantly with glucose application. Moreover, the increase in the HG+GSH group was more significant when compared to the control group (p≤0.05). No difference with the control group was found only in the group where GSH was applied. As for TAS, whereas any difference was observed in GSH used groups, the increase in the HG+GSH group was significant compared to the control group (p≤0.05). that were the same as the control group. TOS and OSI considerably increased in HG + GSH implemented groups as to the control group (p≤0.05). Conclusion: According to the results, no protective impacts of glutathione at the cellular level in the doses mentioned above were observed on high-dose glucose implemented cells. On the other hand, it was revealed that the applied amounts of glutathione in the process did not cause any toxic effects

Relationship between Packed Cell Volume Levels and Serum Nitric Oxide Concentrations in Cattle with Tropical Theileriosis

This study was performed to determine changes in serum NO (nitric oxide) levels in cattle with theileriosis in accordance with PCV levels. For this purpose, 42 cattle with theileriosis and 10 healthy cattle have been used as material. Infected animals have been divided into 3 equal groups. 1st group had <12%, 2nd group had 13-24% and 3rd group had <25% PCV level. Blood samples have been used to determine NO concentrations. Serum NO concentrations prior to treatment increased in all infected groups compared to control group however its levels were significant only in the third group. NO concentrations decreased to almost normal values after treatment especially in 2nd and 3rd group, however this decrease was not significant in the first group. As a result, NO levels have been found increased in cattle with natural theileriosis. Therefore, its concluded that NO level and PCV levels in theileriosis should be studied with more detail in the future to enlighten the role of NO release and strategies for controlling its' release should be made especially in severe cases. (C)2015 PVJ. All rights reserve