The effect of tadalafil therapy on kidney damage caused by sepsis in a polymicrobial septic model induced in rats: a biochemical and histopathological study

Int Braz J Urol. 2017 Mar-Apr;43(2):345-355. doi: 10.1590/S1677-5538.IBJU.2016.0075.

Abstract

Introduction: Sepsis is an inflammatory reaction to bacteria involving the whole body and is a significant cause of mortality and economic costs. The purpose of this research was to determine whether tadalafil exhibits a preventive effect on sepsis in a septic model induced in rats with cecal ligation and puncture (CLP).

Materials and methods: Rats were randomly separated into groups, 10 rats in each: (i) a sham (control) group, (ii) an untreated sepsis group, (iii) a sepsis group treated with 5mg/kg tadalafil and (iv) a sepsis group treated with 10mg/kg tadalafil. A polymicrobial sepsis model was induced in rats using CLP. Rats were sacrificed after 16h, and blood and kidney tissues were collected for biochemical and histopathological study.

Results: Levels of the inflammatory parameter IL-6 decreased significantly in the sepsis groups receiving tadalafil in comparison with the untreated sepsis group (p < 0.05). In terms of histopathology, inflammation scores investigated in kidney tissues decreased significantly in the sepsis groups receiving tadalafil compared to the untreated sepsis group (p < 0.05). In addition, levels of creatinine and cystatin C measured in septic rats receiving tadalafil were lower by a clear degree than in septic rats (p < 0.05).

Conclusion: In this study, tadalafil exhibited a preventive effect for sepsis-related damage by suppressing inflammation in serum and kidney tissue of septic rats in a polymicrobial sepsis model induced with CLP.

Keywords: Acute Kidney Injury; Renal Insufficiency; Tadalafil.

Publication types

  • Evaluation Study

MeSH terms

  • Animals
  • Calcitonin / blood
  • Catalase / analysis
  • Creatinine / blood
  • Cystatin C / blood
  • Disease Models, Animal
  • Enzyme-Linked Immunosorbent Assay
  • Immunohistochemistry
  • Interleukin-6 / blood
  • Kidney / drug effects
  • Kidney / pathology
  • Ligation
  • Male
  • Malondialdehyde / analysis
  • Peroxidase / analysis
  • Phosphodiesterase 5 Inhibitors / therapeutic use*
  • Random Allocation
  • Rats, Wistar
  • Reference Values
  • Renal Insufficiency / etiology*
  • Renal Insufficiency / pathology
  • Renal Insufficiency / prevention & control*
  • Reproducibility of Results
  • Sepsis / complications*
  • Sepsis / pathology
  • Sepsis / prevention & control*
  • Spectrophotometry
  • Superoxide Dismutase / analysis
  • Tadalafil / therapeutic use*

Substances

  • Cystatin C
  • Interleukin-6
  • Phosphodiesterase 5 Inhibitors
  • Malondialdehyde
  • Tadalafil
  • Calcitonin
  • Creatinine
  • Catalase
  • Peroxidase
  • Superoxide Dismutase