The protective effects of urapidil on lung tissue after intestinal ischemia-reperfusion injury

Objective: The effects of urapidil in intestinal ischemia-reperfusion (IR) model were investigated using histopathological and biochemical methods. Materials and methods: Forty Wistar albino rats were subjected to sham operation (Group 1), IR (Group 2), IR + dimethyl sulfoxide (Group 3), IR + urapidil 0.5 mg/kg (Group 4), and IR + urapidil 5 mg/kg (Group 5). Levels of MDA, TAS, TOS, SOD, MPO, NF-kappa B, caspase-3, and LC3B were measured. Results and discussion: The groups 2 and 3 had significantly higher TOS and MPO levels than the sham group had (p < 0.001), whereas the TAS and SOD levels were significantly lower in Group 2 than in the sham group. In treatment groups, TAS and SOD levels increased, whereas TOS, MPO, and MDA levels decreased compared to Group 2. Caspase-3 and LC3B immunopositivities were seen at severe levels in Group 2 and 3. However, Group 4 and 5 were found to have lower levels of immunopositivity. Immunopositivity was observed in interstitial areas, peribronchial region, and bronchial epithelial cells. A moderate level of NF-kappa B immunopositivity was seen in Group 2 and 3. Conclusion: Our results show that urapidil is one of the antioxidant agents and protects lung tissue from oxidant effects of intestinal IR injury.