BACKGROUND: The purposes of this study were to evaluate dimethylsulfoxide (DMSO) influences on oxidative stress and rat liver regeneration after partial hepatectomy (PH). METHODS: 36 young male Wistar rats were randomly assigned to two groups of 18 animals each - experimental (G2) and control (G1) - and all of them were submitted to PH at the time T0. The G1 rats received daily for 14 days, by intraperitoneal (i.p.) route, NaCl 0.9% (saline) 0.1mL/kg and the G2 animals got daily DMSO 3% 0.1mL/kg by the same route. In each group, at 36h(T1), 168h(T2) and 336h(T3) post-PH, a subgroup of 6 rats were chosen in a randomized way to complementary hepatectomy, when blood and the residual liver lobes were taken to measure reduced glutathione (GSH) (blood plasma and liver) and blood concentrations of glucose and total bilirubin. All surgical procedures were performed under inhaled ether anesthesia. RESULTS: DMSO inhibited the liver and the plasma GSH concentrations after 7 days but did not show any significant effect on liver regeneration phenomenona. CONCLUSION: DMSO administration leads to an inhibitory effect on oxidative stress but did not show any change on the liver regeneration evolution in rats after PH.
Hepatectomy; Oxidative stress; Rats; Liver regeneration; Lipid peroxidation; Dimethyl sulfoxide
