TR-Dizin İndeksli Açık & Kapalı Erişimli Yayınlar
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Item Are oxidative stress markers helpful for diagnosing the disease and determining its complexity or extent in patients with stable coronary artery disease?(2017) Yılmaz, M.; Altın, C.; Özyıldız, A.; Müderrisoğlu, H.; 0000-0002-2557-9579; 0000-0002-9635-6313; 28990940; S-6973-2016; AAG-8233-2020OBJECTIVE: The aim of this study was to investigate the relationship between oxidative/antioxidative stress markers and the diagnosis and complexity of coronary artery disease (CAD) in patients with stable CAD. METHODS: A total of 145 patients were enrolled in the study. Based on coronary angiography results, the patients were categorized into 2 groups: those without CAD (Group 1) and those with CAD (Group 2). The patients in Group 2 were also categorized into low score and moderate/high score groups according to their SYNTAX score. The serum malondialdehyde (MDA) and total antioxidant capacity (TAOC) levels of Group 1 and Group 2 were compared. Finally, MDA and TAOC levels were compared between the moderate/high-risk and low-risk groups formed according to SYNTAX score. RESULTS: There was a significant difference with respect to both serum TAOC and MDA levels between Group 1 and Group 2 (p=0.036 and p=0.029, respectively). The groups with a SYNTAX score 1-22 and with a SYNTAX score >22 were not significantly different with respect to serum TAOC or MDA level (p=0.582 and p=0.85, respectively). CONCLUSION: The serum MDA level was significantly higher and the TAOC level was significantly lower in patients with stable CAD compared to those without; however, these molecule levels failed to predict disease complexity in patients with stable CAD.Item Effects of significant weight loss following bariatric surgery on red cell distribution width and mean platelet volume(2018) Altın, C.; Erol, V.; Yılmaz, M.; Bozkuş, Y.; Müderrisoğlu, H.Aim: Elevated red blood cell distribution width (RDW) and mean platelet volume (MPV) levels which are closely associated with chronic inflammation and platelet aggregation are suggested as independent predictors of obesity and cardiovascular diseases. However influence of significant weight loss following bariatric surgery on these parameters is unknown. Therefore we aimed to find out the effect of significant weight loss following laparoscopic sleeve gastrectomy (LSG) on RDW and MPV levels. Methods: The medical data of 98 morbid obese subjects (25 male, 73 female) who were operated between February 2015 and June 2017 according to indications of bariatric surgery in current guidelines including body mass index (BMI) >40 kg/m 2 or BMI= 35-40 kg/ m 2 with additional comorbidities were recorded. The difference between baseline and values at one year was expressed as a delta (Δ). Results: The mean age of our study population was 41.89±11.99 years and mean weight loss in one year after LSG was 45.41±13.13 kg (36.5%). BMI decreased from 46.60±7.11 kg/m 2 to 29.58±4.63 kg/m 2 . Compared to the baseline, significant decreases in RDW (14.61±1.69 % vs. 13.71±2.10 %; p<0.01) and MPV (8.63±1.45 vs. 7.92±1.24 fL, p<0.001) levels were found in the postoperative one-year values. In addition; ΔVKI was positively correlated with ΔRDW (r=0.343, p<0.01) and ΔMPV (r=0.322, p<0.01). Conclusion: We found that morbid obese subjects have significantly decreased RDW and MPV levels which are correlated to their weight loss in one-year follow-up after LSG. If we think that several factors may affect these parameters, conduction of further prospective large-scale studies are needed. © 2018, Logos Medical Publishing. All rights reserved.