ArticleUlusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES2023
The determination of the protective role of sildenafil administration in rats with sepsis-induced liver injury.
Article in Ulusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundSepsis is a complex syndrome which comes out after infection, characterized by activation of inflammation and infection and has a high morbidity and mortality. Sildenafil (SLD) is a selective phosphodiesterase Type 5 enzyme inhibitor and is used in the treatment of erectile dysfunction effectively all over the world. In this study, we investigated whether SLD had protective effect or not by studying the effect of SLD on reactive oxygen species and antioxidants in cecal ligation and puncture (CLP) polymicrobial sepsis model in rat liver histopathologically and biochemically.
methodsRats were divided into four groups: (1) 10 mg/kg SLD given CLP group; (2) 20 mg/kg SLD given CLP group; (3) CLP group; and (4) SHAM operated group. CLP polymicrobial sepsis model was applied to the rats. All rats in our study were sacrificed by overdose general anesthetic after 16 h (thiopental sodium, 50 mg/kg). Specimens of rat liver were analyzed histopathologically and biochemically. In the study, superoxide dismutase (SOD) and glutathione (GSH) parameters were measured to indicate the antioxidant activity in liver during sepsis. To evaluate the oxidant activity, myeloperoxidase (MPO) and lipid peroxidation (LPO) parameters were measured in liver tissue.
resultsSOD and MPO activities and GSH and LPO levels were high in CLP polymicrobial sepsis model when compared to SHAM group (p<0.05). In all SLD groups, GSH levels were high when compared to CLP group. In 20 mg/kg SLD given sepsis group, high GSH levels were observed according to SHAM group. In addition, while all SLD dose groups had a significant decrease versus CLP group in LPO levels (p<0.05), they had a significant increase in MPO activities. In 20 mg/kg SLD administrated rats, an improvement observed in biochemical parameters. In this study, SOD and MPO activities which were low in SHAM group increased in CLP polymicrobial sepsis model. When SLD administrated, MPO activity increased in both SHAM and CLP groups. In this study, GSH and LPO levels also increase in septic liver tissue. When SLD administrated to SHAM group, it increased VI protective GSH level and decreased detrimental LPO level. In histopathological examination, it was observed that 10 mg/kg SLD administration had a curative effect in liver tissue partly.
conclusionIt was shown that acute SLD administration decreased liver damage in septic rats dose-dependently in this study. In addition, it was observed that it corrected the broken oxidant-antioxidant balance. This might mediate the protective effect of SLD in liver. However, we believe that new experimental and clinical studies should be in the future to understand the protective effect of SLD in liver.
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