نتایج جستجو برای: iron content
تعداد نتایج: 548653 فیلتر نتایج به سال:
Fatty liver disease can range from fatty liver alone (steatosis) to fatty liver associated with inflammation (steatohepatitis). Purpose: The study was undertaken to determine the relationships between the histological finding and biochemical measures of hepatic injury with hepatic iron content in patients with chronic liver diseases and steatosis. Methods: The study of 115 patients with chronic...
Background: Clinical studies have shown that disturbance of iron homeostasis in ischemic stroke influenced recovery and functional outcome following blood reperfusion of obstructed cerebral vessels, but the mechanism of iron-mediated toxicity in ischemic strokes has not been fully elucidated. Methods: A middle cerebral artery occlusion (MCAO) mouse model was established by introducing an embolu...
Iron is an essential nutrient for the growth of most bacteria. To obtain iron, bacteria have developed specific iron-transport systems located on the membrane surface to uptake iron and iron complexes such as ferrichrome. Interference with the iron-acquisition systems should be therefore an efficient strategy to suppress bacterial growth and infection. Based on the chemical similarity of iron a...
Introduction: R2 and phase images derived from high-resolution 7 Tesla magnetic susceptibility-weighted MRI provide a rich contrast in healthy and diseased human brain. Yet, the sources that contribute to this contrast are not fully understood. Previous studies suggest that iron and myelin brain content may each contribute to R2 and phase in a different manner [1]. In this study, we used multip...
59Fe uptake by rabbit reticulocytes from human transferrin-bound iron was studied by using transferrin solutions (35, 50, 65, 80 and 100% saturated with iron) whose only common characteristic was their content of diferric transferrin. During the early incubation period, 59Fe uptake from each preparation by reticulocytes was identical despite wide variations in amounts of total transferrin, tota...
Iron is essential for human life, but toxic if present in excess. To avoid iron overload and maintain iron homeostasis, all cells are able to regulate their iron content through the post-transcriptional control of iron genes operated by the cytosolic iron regulatory proteins that interact with iron responsive elements on iron gene mRNA. At the systemic level, iron homeostasis is regulated by th...
BACKGROUND Oxygen, haemoglobin and cardiac output are integrated components of oxygen transport: each gram of haemoglobin transports 1.34 mls of oxygen in the blood. Low arterial partial pressure of oxygen (PaO2), and haemoglobin saturation (SaO2), are the indices used in clinical assessments, and usually result from low inspired oxygen concentrations, or alveolar/airways disease. Our objective...
Since the first description by Theorell (11) of a process of isolating and purifying myoglobin from horse heart by crystallization, several workers have succeeded in preparing myoglobin by Theorell’s procedure. Roche and Vieil (8) and Rossi and Aragona (9) have described methods less arduous than Theorell’s. Their methods, however, sacrifice yield to gain simplicity. We have developed a modific...
A study of silica and iron recovery from the iron ore concentration tailing is presented. The residue is composed of 40.1% Fe, 33.4% SiO2, 8.31% Al2O3, 0.08% P, and 0.34% MnO. The developed process of silica and iron recovery consisted of size classification, magnetic separation, and removal of impurities by leaching. A concentration of SiO2 from 33.4% to 67.0%, with 60.0% of mass reduction, wa...
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