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Öğe The efficacy of systemic inflammatory response and oxidative stress in erectile dysfunction through multi-inflammatory index: a prospective cross-sectional analysis(Oxford Univ Press, 2023) Taskiran, Mehmet; Dogan, KazimBackground Systemic inflammation and oxidative stress increase the possibility of erectile dysfunction (ED) through a coordinated response to vascular endothelial damage. Aim The study aimed to evaluate the status of oxidative stress and systemic inflammation in ED. Methods The analysis was a prospective, cross-sectional, single-center study. The study included non-ED (n = 54) and ED (n = 104) groups. The study analyzed demographics, clinical outputs, oxidative stress (total antioxidant status [TAS], total oxidant status [TOS], oxidative stress index [OSI]), and an inflammatory condition (multi-inflammatory index 1 [MII-1], MII-2). Outcomes Oxidative stress and systemic inflammation were evaluated together in ED, which was evaluated with the help of the International Erectile Function Index (IIEF) scale. Results TAS significantly decreased in the ED group compared with the non-ED group (2.25 +/- 0.83 mmol Trolox equivalents/L vs 1.45 +/- 0.65 mmol Trolox equivalents/L; P = .001). TOS increased in the ED group (14.1 +/- 6.2 mu mol H2O2 equivalents/L) compared with non-ED group (11.05 +/- 6.8 mu mol H2O2 equivalents/L) (P = .002). OSI was as low as 0.74 +/- 0.33 in the non-ED group and as high as 2.38 +/- 0.85 in the ED group (P = .001). Both MII-1 (273 +/- 398 vs 745 +/- 1311; P = .012) and MII-2 (4.66 +/- 5.02 vs 19.7 +/- 29.4; P = .031) increased in the ED group compared with the non-ED group. IIEF was negatively correlated with MII-1 (r = -0.298; P = .009), MII-2 (r = -0.341; P = .006), and OSI (r = -0.387; P < .0001), while TAS had a strong positive correlation with the IIEF (r = 0.549; P = .0001). OSI was correlated with MII-1 (r = 0.304; P = .001) and MII-2 (r = 0.334; P = .001). OSI was the strongest parameter in predicting ED (P = .0001; area under the curve, 0.795; 95% confidence interval, 0.696-0.855). The cutoff was 0.71 at 80.5% sensitivity and 67.2% specificity. Clinical Implications OSI showed diagnostic potential for ED as an oxidative stress indicator, while MII-1 and MII-2 showed the effectiveness. Strengths and Limitations MIIs, a novel indicator of systemic inflammatory condition, were analyzed for the first time in patients with ED. The long-term diagnostic efficacy of these indices was lacking, as all patient data did not include long-term follow-up. Conclusion Considering their low cost and easy applicability compared with OSI, MIIs could be essential parameters in the follow-up for ED for physicians.Öğe A randomized controlled trial of combined low-intensity extracorporeal shockwave therapy and Dapoxetine use in the management of lifelong premature ejaculation(Mre Press, 2023) Dogan, Kazim; Taskiran, MehmetWe aimed to evaluate the efficacy of combined low-intensity extracorporeal shockwave therapy (LI-ESWT) and dapoxetine administration for the treatment of lifelong premature ejaculation (LPE) in comparison to LI-ESWT and dapoxetine alone. In the randomized controlled trial, 212 men diagnosed with LPE were enrolled. The participants were randomized into four subgroups: control (n = 50), dapoxetine (n = 56), LI-ESWT (n = 50) and LI-ESWT + dapoxetine (n = 56). The intravaginal ejaculation latency (IELT), premature ejaculation profile (PEP), and Global Impression of Change (GIC) were evaluated. There were substantial improvements in the fold-increase of the IELT (F-IELT), and PEP and GIC-I scores in both the dapoxetine (p < 0.001) and LI-ESWT + Dapoxetine (p < 0.001) groups than in the control and LI-ESWT groups. Although the LI-ESWT group demonstrated a minor improvement in the F-IELT score (p = 0.04), there were no noticeable improvements in the PEP (p = 0.12) and GIC-I ( p = 0.15) scores. In conclusion, a combination of dapoxetine administration and LI-ESWT might be more effective in treating LPE than LI-ESWT or dapoxetine alone, indicating a potential synergistic effect.Öğe Therapeutic effect of thymoquinone on brain damage caused by nonylphenol exposure in rats(Wiley, 2023) Ceylan, Tayfun; Akin, Ali Tugrul; Karabulut, Derya; Tan, Fazile Canturk; Taskiran, Mehmet; Yakan, BirkanNonylphenol (NP), causes various harmful effects such as cognitive impairment and neurotoxicity. Thymoquinone (TQ), has antioxidant, anti-inflammatory, and neuroprotective properties. In this study, our aim is to investigate the effects of TQ on the brain damage caused by NP. Corn oil was applied to the control group. NP (100 mg/kg/day) was administered to the NP and NP + TQ groups for 21 days. TQ (5 mg/kg/day) was administered to the NP + TQ and TQ groups for 7 after 21 days. At the end of the experiment, the new object recognition test was applied to the rats and the rats were killed and their brain tissues were removed. Sections taken from brain tissues were stained with hematoxylin-eosin for histopathological evaluation. In addition, neuronal nuclei (NeuN), glial fibrillary acidic protein (GFAP), Cas-3, and nerve growth factor (NGF) immunoreactivities were evaluated in brain tissue sections. In addition, malondialdehyde (MDA), superoxide dismutase (SOD), and catalase (CAT) activities were determined. Comet assay was applied to determine DNA damage in cells. The results of our study showed that NP, caused behavioral disorders and damage to the cerebral cortex in rats. This damage in the form of neuron degeneration seen in the cortex was associated with apoptosis involving Cas-3 activation, increased DNA damage, and free oxygen radicals. NP, SOD, and CAT caused a decrease in enzyme activities. In addition, the cellular protein NeuN was decreased, astrocytosis-associated GFAP was increased, and growth factor NGF was decreased. When all our evaluations are taken together, treatment with TQ showed an ameliorative effect on the behavioral impairment and brain damage caused by NP exposure.
