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    The effects of Losartan on oxidative stress and inflammation in non-diabetic patients undergoing chronic hemodialysis
    (Verduci Publisher, 2013) Kayabasi, H.; Yilmaz, Z.; Sit, D.; Kadiroglu, A. K.; Yilmaz, E.
    INTRODUCTION: We aimed to evaluate the effects of Losartan, an angiotensin receptor blocker, on serum inflammatory markers, plasma thiol groups, and oxidative stres indexes among patients undergoing hemodialysis (HD) treatment. PATIENTS AND METHODS: Fiftytwo end-stage renal disease (ESRD) patients undergoing chronic HD programme for at least 12 months, and thirty age and gender matched healthy volunteers were enrolled into this prospective clinical trial. Plasma levels of thiol groups (SH), total antioxidant capacitiy (TAC), and total oxidant status (TOS) were studied. Oxidative stress index (OSI) was calculated by TOS/TAC. Firstly results of patients were compared with healthy subjects and then patients were treated by Losartan 50-100 mg and followed up for three months. RESULTS: Among patients, SH Groups, TAC, TOS, and OSI were statistically higher than controls. Also the inflammatory markers were significantly higher in patients than controls and albumin was lower among patients. At the end of the 3 months among all patients the mean value of TAC was increased to 1.7 +/- 0.4 micromol Trolox Eqv./L. from 1.4 +/- 0.2, and SH groups to 0.33 +/- 0.02 mmol/L from 0.22 +/- 0.01, (p < 0.001) while TOS decreased to 7.2 +/- 1.1 micromol H2O2 Eqv./L from 9.5 +/- 4.5, and OSI decreased to 5.0 +/- 0.8 from 7.1 +/- 3.2 (p < 0.001). CONCLUSIONS: Losartan was effective in controlling blood pressure, and decreasing OSI, a marker of elevated oxidative stress, and increasing plasma levels of SH groups, an antioxidant, in ESRD patients undergoing hemodialysis. So, it may not be only a hypotensive drug, but also improves OS, particularly in patients with ESRD.
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    Öğe
    Lead levels of kidney cortex and medulla in autopsy samples
    (Elsevier Ireland Ltd, 2015) Arica, E.; Kayaalti, Z.; Kaya-Akyuzlu, D.; Yilmaz, E.; Soylemezoglu, T.
    [Abstract Not Available]