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    The Effect of Renal Transplantation on Cardiac Functions
    (2020) Yilmaz, Kerem Can; Akgun, Arzu Neslihan; Keskin, Suzan; Ciftci, Orcun; Moray, Gokhan; Muderrisoglu, Haldun; Haberal, Mehmet; 0000-0002-3462-7632; 0000-0001-8926-9142; 33229768; AAJ-8097-2021; W-5233-2018; AAJ-1331-2021
    Chronic renal failure is a well-known risk factor for cardiovascular poor outcome. Despite advances in dialysis and renal transplantation, these patients still have high cardiovascular morbidity and mortality. The aim of our study was to evaluate the changes in blood parameters and echocardiographic parameters of patients undergoing renal transplantation in our center. One hundred and eighty-three patients who underwent renal transplantation between September 2012 and January 2016 were included in the study. Pre- and postoperative hemoglobin values, lipid profiles, ejection fractions, presence of left ventricular hypertrophy, presence of diastolic dysfunction, and valve pathologies were retrospectively scanned. Data were obtained from all patients in terms of blood parameters, but we compared 92 patients' echocardiographic data because of lack of both pre- and postoperative echocardiography records. In our study, 124 patients (67.8%) were male, and the mean age was 42.6 +/- 14.4 years. Hemoglobin levels (11.2 +/- 1.98, 12.7 +/- 2.2 mg/dL, P <0.001) and high-density lipoprotein (HDL) values (37.6 +/- 10.5, 46.6 +/- 13.6 mg/dL, P <0.001) were found to be different significantly. In echocardiographic evaluation, there was no difference between pre- and postoperative ejection fractions in 92 patients. However, patients with preoperative ejection fraction <50% had a significant increase in postoperative ejection fraction (40.1 +/- 6.2, 48.4% +/- 9.4%, P = 0.012). Renal transplantation can improve left ventricle ejection fraction in patients with basal ejection fraction less than 50% and also provide a significant increase in hemoglobin and HDL levels in all patients. This suggests that renal transplantation may reverse the process for dilated cardiomyopathy and may improve cardiac function in patients with low ejection fraction. However, transplantation should be performed as early as possible in these patients.
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    Dietary Fiber Intake: Its Relation With Glycation End Products and Arterial Stiffness in End-Stage Renal Disease Patients
    (2019) Demirci, Bahar Gurlek; Tutal, Emre; Eminsoy, Irem O.; Kulah, Eyup; Sezer, Siren; 30314838; AAB-3881-2021
    Objective: We aimed to analyze the relationship between the effect of total dietary fiber intake on C-reactive protein (CRP) and on oxidative stress parameters such as serum advanced glycation end products (AGEs), superoxide dysmutase (SOD), malondialdehyde, and arterial stiffness by pulse wave velocity (PWv) in maintanace hemodialysis (MHD) patients. Methods: Among 650 MHD patients, 128 were selected according to inclusion criteria. The dietary survey was performed with a 3-day dietary history. Dietary fiber level was adjusted for total energy intake by the residual method. Patients were stratified by quartiles of adjusted dietary fiber (ADF) level as group 1 (n = 32) (ADF: <8.86 g/day), group 2 (n = 35) (ADF: 8.86-12.50 g/day), group 3 (n = 31) (ADF: 12.51-15.90 g/day), and group 4 (n = 30) (ADF: >= 15.91 g/day). Monthly assessed biochemical parameters including serum hemoglobin, albumin, CRP, calcium, phosphorus, and lipid profile levels were recorded. Serum AGEs, SOD, and malondialdehyde levels were determined by ELISA method. The PWv was determined from pressure tracing over carotid and femoral arteries. Results: Patients in group 3 and 4 had significantly lower CRP and AGE than those in group 1 and 2. Mean serum SOD level and PWv were significantly higher in group 4. In regression analysis, ADF intake was the unique predictor for both AGE (r(2) = 0.164, P = 0.017) and CRP levels (r(2) = 0.238, P = 0.01). Conclusion: Present data show that dietary fiber intake is independently correlated with inflammation and oxidative stress. In addition, decreased fiber intake results in impaired arterial stiffness. Thus, adequate fiber intake could prevent cardiovascular events and inflammatory processes in patients undergoing MHD. (C) 2018 by the National Kidney Foundation, Inc. All rights reserved.