Browsing by Author "Uluocak, Nihat"

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Dapsone Can Be a New Treatment Option for Reducing the Detrimental Effect of Priapism
(2021) Uluocak, Nihat; Kolukcu, Engin; Parlaktaş, Bekir Süha; Deresoy, Faik Alev; Katar, Muzaffer; Unsal, Velid
Aim: This study aims to analyze the effect of dapsone against ischaemia-reperfusion injury on corporal tissue in a model of induced-priapism in rats. Material and Method: A total of 24 rats were randomized into three groups. Group 1 was defined as the control group. Ischaemia-reperfusion injury was evaluated following the priapism model in Group 2. Group 3 had similar procedures to the rats in Group 2. Group 3 additionally had 12.5 mg/kg dapsone administered intraperitoneally 30 minutes after priapism. Results: Biochemical analysis of blood indicated a significant increase in Group 3 in terms of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) activity and total antioxidant status (TAS) values compared with Group 2 (p:0.002, p:0.029 and p:0.009, respectively). The highest values of malondialdehyde (MDA), protein carbonyl (PC) and total oxidant status (TOS) were recorded in Group 2 (p<0.001). Interleukin 1beta (IL-1beta), Interleukin 6 (IL-6) and tumor necrosis factor alpha (TNF alpha) levels were found to be significantly decreased in Group 3 compared with Group 2 (p:0.022, p:0.049 and p<0.001, respectively). Direct microscopic evaluation determined an improvement in inflammation, edema, desquamation and vasocongestion scores in Group 3 compared to Group 2 (p<0.05). Conclusion: Dapsone has a protective effect on ischaemia-reperfusion injury in corporal tissue.
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.
Milrinone ameliorates ischaemia-reperfusion injury in experimental testicular torsion/detorsion rat model
(Andrologia, 2021) Unsal, Velid; Kölükçü, Engin; Atılgan, Doğan; Uluocak, Nihat; Deresoy, Faik Alev; Katar, Muzaffer
This experimental study aims to evaluate the efficacy of milrinone against ischaemia-reperfusion injury due to testicular torsion/detorsion. Group 1 was defined as the control group. Testicular torsion/detorsion model was performed in Group 2. Group 3 had similar procedures to the rats in Group 2. In addition, 0.5 mg/kg of milrinone was administered intraperitoneally immediately after testicular torsion in Group 3. Histopathological examinations indicated a dramatic improvement in terms of inflammation, haemorrhage, oedema, congestion, Cosentino and Johnson scores in Group 3 compared to Group 2 (p =.037, p =.045, p =.018, p =.040, p =.033 and p =.03 respectively). Blood biochemical analyses, superoxide dismutase (SOD), glutathione peroxidase (GSH-px) activity and total antioxidant status (TAS) levels increased significantly in Group 3 compared to Group 2 (p =.001, p =.024 and p <.001). Malondialdehyde (MDA), protein carbonyl (PC), interleukin 1beta (IL-1beta), tumour necrosis factor-alpha (TNF-alpha) and total oxidant status (TOS) levels decreased in Group 3 compared to Group 2 (p =.001, p =.018, p <.001, p =.036 and p =.002 respectively). Tissue biochemical analyses determined an increase in SOD and GSH-px activity in Group 3 compared to Group 2, while PC and MDA levels were reduced (p =.001, p <.001, p =.038 and p <.001 respectively). Milrinone attenuates ischaemia-reperfusion injury that causes highly harmful effects due to testicular torsion/detorsion.