Lale Afrasyap

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Selenium, aluminum, cadmium, and magnesium concentrations and gluthathione-peroxidase activities in sera of 35 healthy individuals, 30 renal transplants, and 30 hemodialysis patients were measured. Serum selenium, aluminum, and cadmium concentrations in both groups of patients were higher than the controls (p<0.001), whereas the serum(More)
Nitric oxide is synthesized from L-arginine by endothelial nitric oxide synthase encoded by eNOS gene. This study was performed to investigate the relationship between the serum nitric oxide level and eNOS gene polymorphism in the Turkish population with angiographically diagnosed coronary artery disease (63.47 +/- 9.10 years old, n=250) and control(More)
Plasma and erythrocyte selenium levels in rabbits supplemented with therapeutic doses of selenium were studied by Zeeman graphite furnace atomic absorption spectrometry using a new palladium-ascorbic acid chemical modifier in order to achieve a higher precision. An improved coupled test procedure was used to determine the glutathione peroxidase (GSH-Px)(More)
Melatonin (MEL) is synthesized mainly in the pineal gland and derived from 5-hydroxytryptophan (5-HTP). Zinc (Zn) is one of the most important trace elements in the body. Zn and MEL levels are changed with aging. The aim of this study was to investigate the age-related changes of tissue and plasma Zn levels and effect of MEL administration on these(More)
This study was carried out to investigate the effect of selenium supplementation at a therapeutic level on the isolated ileum contractions and the acetylcholine responses in New Zealand rabbits. While no difference with respect to the controls was found in the spontaneous ileum contraction frequencies a significant increase in the contraction amplitude was(More)
Although the interaction between Hcy, NO(2)(-) and vascular disease has been extensively studied, there are no data verifying their ratios to HDL-C in coronary artery disease (CAD). We examined whether Hcy/HDL-C and NO(2)(-)/HDL-C ratios correlated with the degree of stenosis in CAD. Also, TC/HDL-C and LDL-C/HDL-C ratios were evaluated in the same(More)
The purpose of this study was to examine whether the serum levels of nitric oxide end products and the ratio of nitrite to lipoproteins are valid instruments in the clinical follow-up of patients with coronary artery disease. 65 subjects were divided into three groups, including patients with coronary artery disease, silent coronary artery disease and(More)
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