The effect of progesterone on systemic inflammation and oxidative stress in the rat model of sepsis.

Objectives: To explore the protective effect of progesterone on inflammation and oxidative stress in a rat model of sepsis created by cecal ligation and puncture (CLP).

Materials And Methods: Rats were randomly divided into 4 groups: Overiectomy group (OVX), sham operated (control), sepsis (CLP) group and progesterone-treated CLP group (CLP+ progesterone). The rats in CLP+ progesterone group received intraperitoneal progesterone (2 mg/kg).

Sildenafil reduces ischemia-reperfusion injury in rat ovary: biochemical and histopathological evaluation.

Background/aims: To evaluate the effects of sildenafil on antioxidant enzyme activities, lipid peroxidation and histopathological changes in ovarian tissue after ischemia-reperfusion (I/R) injury in a rat model.

Methods: A total of 18 adult female Wistar albino rats weighing 200-250 g were studied as follows: (1) control group: sham operation, (2) I/R group: 3 h of reperfusion after 3 h of ischemia and (3) I/R + sildenafil group: 3 h of reperfusion after 3 h of ischemia; half an hour before reperfusion, sildenafil (1.4 mg·kg(-1)) was given by oral gavage.