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Öğe Can paricalcitol increase the effectiveness of N-acetylcysteine in contrast induced acute kidney prophylaxis in rats? A biochemical and histopathological study(Universidad de la Frontera, 2022) Yıldırım, Yaşar; Bahadır, Veysi; Aydın, Emre; Aydın, Fatma Yılmaz; Yılmaz, Zülfükar; Ketani, Aydın; Kaplan, İbrahim; Tuncer, Mehmet Cudi; Kadiroǧlu, Ali Kemal; Yılmaz, Mehmet EminN-Acetylcysteine (NAC) is used for contrast induced acut kidney injury (CI-AKI) prophylaxis because of its antioxidant effects. Paricalcitol, which has reno-protective effects, is likely to provide a more effective prophylaxis when added to NAC treatment. The study was designed based on this hypothesis. The study was organised to include 4 groups each consisting of 7 rats. Group 1 was the control group, and Group 2 included rats with CI-AKI. Rats in Group 3 were administered NAC at a dose of 100 mg/kg via oral gavage once a day for 5 days. Rats in group 4 were administered paricalcitol at a dose of 0.4 mcg/kg once a day for 5 days in addition to NAC. CI-AKI was induced after the treatments in both groups. The study was terminated on the sixth day. Samples were collected from the rats’ sera and kidney tissues to study oxidant and antioxidant parameters; kidney function tests were also studied. There were significant differences between the contrast nephropathy group (Group 2) and NAC and NAC+paricalcitol groups with respect to serum urea and creatinine levels. When the same groups were compared regarding oxidant (TOS-MDA) and antioxidant (TAC-Paraoxonase) parameters, we observed that the oxidant parameters increased in serum and kidney tissue samples with NAC use, and that effect was strengthened by the addition of paricalcitol to NAC treatment. However, despite increased antioxidant effectiveness, we observed no decrease in urea and creatinine levels when paricalcitol was added for CI-AKI in rats. There was no significant difference between Group 3 and Group 4. Paricalcitol provides a more potent antioxidant effect in both serum and kidney tissue samples when added to NAC treatment in rats with CI-AKI. Despite increased antioxidant parameters, however, paricalcitol does not provide a significant decrease in urea and creatinine levels.Öğe Evaluation of the effect of intraperitoneal etanercept administration on oxidative stress and inflammation indicators in the kidney and blood of experimental sepsis-induced rats(Sociedade Brasileira de Medicina Tropical, 2020) Aydın, Emre E.; Yıldırım, Yaşar; Aydın, Fatma Yılmaz; Bahadır, Mehmet Veysi; Kaplan, İbrahim; Kadiroğlu, Berfin; Ketani, Muzaffer Aydın; Yılmaz, Zülfükar; Kadiroǧlu, Ali Kemal; Yılmaz, Mehmet EminIntroduction: Sepsis is an important cause of mortality and morbidity, and inflammatory response and oxidative stress play major roles underlying its pathophysiology. Here, we evaluated the effect of intraperitoneal etanercept administration on oxidative stress and inflammation indicators in the kidney and blood of experimental sepsis-induced rats. Methods: Twenty-eight adult Sprague Dawley rats were classified into Control (Group 1), Sepsis (Group 2), Sepsis+Cefazolin (Group 3), and Sepsis+Cefazolin+Etanercept (Group 4) groups. Kidney tissue and serum samples were obtained for biochemical and histopathological investigations and examined for the C reactive protein (CRP), tumor necrosis factor-alpha (TNF-α), triggering receptor expressed on myeloid cells (TREM), and malondialdehyde (MDA) levels. Results: The levels of TNF-α, TREM, and MDA in serum and kidney samples were significantly higher in rats from sepsis group than in rats from control group (p < 0.05). Group 3 showed a significant reduction in serum levels of TNF-α, CRP, and TREM as compared with Group 2 (p < 0.05). Serum TNF-α, CRP, TREM, and MDA levels and kidney TNF-α and TREM levels were significantly lower in Group 4 than in Group 2 (p < 0.05). Serum TNF-α and TREM levels in Group 4 were significantly lower than those in Group 3, and histopathological scores were significantly lower in Group 3 and Group 4 than in Group 2 (p < 0.05). Histopathological scores of Group 4 were significantly lower than those of Group 3 (p < 0.05). Conclusions: Etanercept, a TNF-α inhibitor, may ameliorate sepsis-induced oxidative stress, inflammation, and histopathological damage.Öğe The relationship between acute kidney injury and inflammation-based parameters and mortality in oncologic intensive care patients(Turkish Society of Medical and Surgical Intensive Care, 2020) Aydın, Emre E.; Kadiroǧlu, Ali Kemal; Yilmaz Aydin, Fatma; Kara, Ali VeyselBackground and Aims: Cancer patients are admitted to intensive care units (ICU) due to primary diseases, treatment-related conditions or comorbid diseases. Acute kidney injury (AKI) and infections appear to be factors affecting mortality and morbidity in ICU follow-up. Therefore, in our study, we investigated the effect of AKI and inflammation-based parameters on mortality in cancer patients admitted to the ICU. Materials and Methods: In this study, 386 patients diagnosed with malignancy hospitalized between 2010 and 2014 in Dicle University Medical Faculty Internal Medicine ICU were included. The study was designed retrospectively. The demographic characteristics and clinical information of the patients were obtained from the files. Subsequently, patients were classified as non-survivors (group 1) and survivors (group 2). Both groups were compared in terms of the presence and stage of AKI by KDIGO definition, neutrophil / lymphocyte ratio (NLR) and platelet / lymphocyte ratio (PLR). Results: Creatinine, CRP, neutrophil counts were found to be significantly higher and albumin, hemoglobin, platelet and lymphocyte counts were found to be lower in group 1 (n=276) compared to group 2 (n=110). Length of ICU was longer in group 2 patients. There was a positive correlation between mortality and KDIGO stages and NLR. Mortality rate was increased 1.9 fold in KDIGO stage 1, 2.3 fold in stage 2, 2.4 fold in stage 3 and 1.5 fold if NLR>5. There was no statistically significant relationship between PLR and mortality. Conclusion: The presence of AKI and elevated inflammation-based parameters were associated with mortality in oncologic patients admitted to the ICU.Öğe Relationship between epicardial adipose tissue and body composition as determined by multi-frequency bioelectrical impedance analysis in patients with stage 5 chronic kidney disease(International Scientific Information, Inc., 2020) Yılmaz, Zülfükar; İnce, Hasan; Aydın, Emre E.; Yıldırım, Yaşar; Aydın, Fatma Yılmaz; Yüksel, Enver; Karabulut, Aziz; Dursun, Lezgin; Kadiroǧlu, Ali Kemal; Yılmaz, Mehmet EminBackground: The main cause of mortality among chronic kidney disease (CKD) patients is cardiovascular disease (CVD). Epicardial adipose tissue (EAT) is considered to be novel cardiovascular risk factor. We assessed EAT in non-dialyzed stage 5 CKD patients and explored the association of EAT with body composition as determined by multi-frequency BIA. Material/Methods: The present included 70 stage 5 CKD patients who had not undergone dialysis and 40 healthy control subjects. EAT thickness was assessed by echocardiography. Hydration status and body composition were evaluated by multi-frequency bioelectrical impedance analysis. Results: Stage 5 CKD patients had significantly higher EAT thickness than healthy subjects (6.56±1.18 vs. 4.05±1.45, p<0.001). Fat tissue mass, systolic blood pressure (SBP), age, fat tissue index, and body mass index were positively correlated with EAT thickness in the CKD patient group (p<0.05). Lean tissue mass, lean tissue index (LTI), and high-density lipoprotein (HDL) were negatively correlated with EAT thickness in the CKD patient group (p<0.05). Stepwise multiple regression analysis showed that age, SBP, and LTI were independently associated with EAT thickness in CKD patients. Conclusions: We found significantly higher EAT thickness in stage 5 CKD patients who were not on dialysis compared to healthy controls. EAT was significantly associated with age, SBP, and LTI in CKD patients. Interventions to reduce the risk factors associated with EAT thickness might protect against CVD disease in CKD patients.
