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    The effects of oxytocin on penile tissues in experimental priapism model in rats
    (SPRINGER, 2019) Kolukçu, Engin; Kılıç, Şahin; Parlaktaş, Bekir Süha; Erdemir, Fikret; Ünsal, Velid; Atılgan, Doğan; Uluocak, Nihat
    PurposeThis study aimed to demonstrate the effects of oxytocin on penile tissues in ischemia-reperfusion injury developed after priapism.MethodsForty Wistar Albino strain male rats were divided into four groups. The control group (n=10) was not intervened. In Group 2, a rat model of priapism was constructed and maintained for 1 h. In Group 3, reperfusion was ensured for 30min following priapism. Rats in Group 4 rats were given oxytocin 30min before the induction of reperfusion following priapism. All rats were penectomized, and adequate amounts of blood sample were drawn. Inflammation, vasocongestion, desquamation, and edema in penile tissue were scored between 0 and 3 points (0: normal, 1: mild, 2: moderate, 3: severe) to evaluate the severity of tissue damage. The activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px), and the levels of malondialdehyde (MDA), and nitric oxide (NO) in blood samples were determined spectrophotometrically.ResultsIn histopathological examination, statistically significant positive changes were detected in vasocongestion, inflammation, desquamation, and edema scores in Group 4 than in Group 2 and Group 3 (p<0.001). Biochemical test results revealed that NO levels were significantly lower in Group 4 than in Group 3 (p<0.001). Serum GSH-Px activities in Group 4 significantly increased when compared with the other groups 2 and 3 (p=0.002, p=0.001, respectively). There was no statistical difference among the groups regarding SOD activities and MDA levels (p>0.05).ConclusionsOxytocin protected against priapism-induced ischemia-reperfusion injury developed in cavernosal tissue as observed based on histopathological and biochemical evidence. Although this is an experimental study, oxytocin can be thought as an alternative drug in the treatment of priapism.