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    8-Isoprostane and Coenzyme Q10 Levels in Patients with Metabolic Syndrome
    (Mary Ann Liebert, Inc, 2016) Ercan, Humeyra; Kiyici, Aysel; Marakoglu, Kamile; Oncel, Mufide
    Background: Metabolic syndrome has become an important health problem, which involves obesity, hyper-lipidemia, insulin resistance, and high blood pressure values. The components of metabolic syndrome are all suggested as independent cardiovascular disease risk factors along with high mortality and morbidity rates accompanied by many organ and system complications. Objective: We aimed to determine 8-isoprostane (8-IsoP) and coenzyme Q10 (CoQ10) levels in patients with metabolic syndrome and healthy individuals and demonstrate whether there was any relation between these parameters and metabolic syndrome criteria. Materials and Methods: A total of 30 patients (10 male, 20 female) with metabolic syndrome and 20 age-matched healthy individuals (9 male, 11 female) were involved in the study. Body mass index, waist and hip circumferences, systolic and diastolic blood pressures and serum glucose, triglyceride, total cholesterol, high-density lipoprotein cholesterol, insulin, HbA1c, 8-IsoP and CoQ10 levels, and homeostasis model assessment of insulin resistance indexes of all participants were determined. Results: 8-IsoP levels were significantly increased in metabolic syndrome compared to healthy individuals (P = 0.003), however, there was no significant difference between groups for CoQ10 levels. 8-IsoP levels were positively correlated with waist circumference (r = 0.303, P=0.032), diastolic blood pressure (r = 0.337, P = 0.017), systolic blood pressure (r = 0.329, P = 0.020) values and total cholesterol levels (r = 0.354, P=0.012). Conclusion: We can suggest that the levels of 8-IsoP, which is an indicator of the oxidative stress, increase in metabolic syndrome and this can be associated with high blood pressure and visceral adiposity, which are the components of metabolic syndrome.
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    Does obesity change the effect of aromatase inhibitors (AIs) on estradiol, leptin, insulin, and IGF-1 serum levels in breast cancer patients?
    (Amer Soc Clinical Oncology, 2012) Artac, Mehmet; Askin, Dudu; Kiyici, Aysel; Eren, Onder Orhan; Oncel, Mufide; Boruban, Melih Cem; Bozcuk, Hakan Sat
    [Abstract Not Availabe]
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    MMP-2, TIMP-2, and MMP-2/TIMP-2 complex levels in epidermoid lung cancer
    (Tubitak Scientific & Technological Research Council Turkey, 2013) Oncel, Mufide; Akoz, Mehmet; Oncel, Murat; Kiyici, Aysel; Apiliogullari, Burhan
    Aim: To investigate serum levels of MMP-2, TIMP-2, and MMP-2/TIMP-2 complex in epidermoid lung cancer and determine whether one of these markers or any combination of them can be used as a prognostic factor and in the management of this disease. Materials and methods: Twenty-eight patients with non-small cell lung cancer and 21 healthy, age-matched individuals participated in this study. MMP-2, TIMP-2, and MMP-2/TIMP-2 complex levels were measured in the sera of the patients and controls with the ELISA technique. Results: MMP-2, TIMP-2, and MMP-2/TIMP-2 complex levels were significantly elevated in patients with non-small cell lung cancer compared to the controls (P = 0.018, 0.041, and 0.034, respectively). Conclusion: MMP-2, TIMP-2, and MMP-2/TIMP-2 complex levels increased not only in lung tissues, but in the sera of the patients with non-small cell lung cancer. However, further studies are needed to fully evaluate the expression rates and diagnostic efficiency of these parameters in different histopathological subtypes of this cancer and in prospective research with a large number of participants.