Publications by authors named "Onur Elmas"

Background And Aim: Decreased vascular reactivity in atherosclerosis was previously shown. In our study, it was aimed to demonstrate the decreased vascular functions in both microvascular and macrovascular tissues and to estimate any correlation between them.

Methods: Twenty-five control outpatients with no coronary artery disease (CAD) history and 26 outpatients with CAD history were enrolled in the study.

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Cytokines, such as transforming growth factor (TGF)-ß1, and increased oxidative stress are considered to be responsible for the development of diabetic nephropathy. We hypothesized that Aesculus hippocastanum (AH) seeds may have preventive effects on oxidative stress and TGF-β-related diabetic nephropathy in streptozotocin (STZ)-induced diabetic nephropathy in rats. Twenty-one male Sprague-Dawley albino rats were divided into three groups (n=7).

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Aims: Although fibromyalgia (FM) syndrome is associated with many symptoms, there is as yet no specific finding or laboratory test diagnostic of this syndrome. The physical examination and laboratory tests may be helpful in figuring out this syndrome.

Materials And Methods: The heart rate, respiration rate, body temperature (TEMP), height, body weight, hemoglobin level, erythrocyte sedimentation rate, white blood cell count, platelet count (PLT), rheumatoid factor and C-reactive protein levels and electrocardiograms (ECG) of FM patients were compared with those of control individuals.

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Background: Fibromyalgia syndrome (FMS) is identified by widespread musculoskeletal pain, sleep disturbance, nonrestorative sleep, fatigue, morning stiffness and anxiety. Anxiety is very common in Fibromyalgia and generally leads to a misdiagnosis. Self-rated Beck Anxiety Inventory (BAI) and doctor-rated Hamilton Anxiety Inventory (HAM-A) are frequently used by specialists to determine anxiety that accompanies fibromyalgia.

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It is controversial that uric acid (UA) levels are related to the severity of hypertension in preeclampsia (PE). Our aim in this study was to determine whether UA, xanthine oxidase activity (XOA), allantoin and nitrite levels are related to arterial blood pressure (BP) in PE. We formed a control group (n = 20) and a PE group (n = 20) for the study.

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Although a large number of exposure studies have been carried out to investigate possible detrimental effects of a power-line frequency magnetic field (PF-MF; 50-60 Hz) on living organisms, there is no consensus in reported results. Recent research suggested that short-term exposure to a 50 Hz PF-MF can have a greater effect than long-term exposure. In our study, we aimed to investigate the possible effect of short-term 50 Hz PF-MF exposure on central, peripheral, and autonomic nervous systems through electroencephalogram (EEG), nerve conduction velocity (NCV), and heart rate variability (HRV) measurements.

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Objectives: Corrosive oesophagitis is a common health problem in children. Scar tissue can develop during the recovery period, and as a result, serious narrowing of the oesophagus can develop, in turn causing morbidity and mortality. In previous studies, it was argued that tamoxifen (TAM) may have antifibrotic effects beyond its oestrogen antagonist or agonist properties.

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The use of electrical devices has gradually increased throughout the last century, and scientists have suggested that electromagnetic fields (EMF) generated by such devices may have harmful effects on living creatures. This work represents a systematic review of collective scholarly literature examining the effects of EMFs on the heart. Although most works describing effects of EMF exposure have been carried out using city electric frequencies (50-60 Hz), a consensus has not been reached about whether long- or short-term exposure to 50-60 Hz EMF negatively affects the heart.

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ABSTRACT The heart is a contractile organ that can generate its own rhythm. The contraction, or the rhythm, of the heart may be influenced by electromagnetic field (EMF) exposure, because of the heart's excitability characteristic. In previous studies, different methods have been used to study the possible effects of an extremely low frequency electromagnetic field (ELF-EMF) on the heart.

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Although there have been many studies on this topic, the molecular mechanism of the toxic effects of hyperammonemia on cells has not yet been fully explained. Recent studies have held oxidative stress mechanisms responsible for hyperammonemia-induced cell damage. Kidney functions are affected in diseases associated with an increase in ammonia in the blood.

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The aim of this study was to investigate possible effects of 50 Hz-1 mT magnetic field (MF) on action potential in isolated rat sciatic nerve. We used 16 Wistar rats in the study. They were divided into control (n = 10) and MF (n = 6) groups.

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Objective: To investigate whether hyperammonemia can lead to any structural change in liver and spleen tissues or biochemical changes in blood and if allopurinol (ALLO) has a protective effect in hyperammonemia.

Methods: This study was conducted between April and May 2006. Thirty-six females Wistar Albino rats were randomly divided into 3 equal groups: Controls, administered with ammonia (NH3) and administered with NH3 + ALLO groups.

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