نتایج جستجو برای: blood storage
تعداد نتایج: 863423 فیلتر نتایج به سال:
Since the inception of blood banking, refinements in laboratory processes have allowed for progressively longer storage times of red blood cells. Whilst advantageous for the logistics of stock management, the clinical impact of the duration of red blood cell storage prior to transfusion remains uncertain, and a topic of growing interest.
BACKGROUND Erythrocytes undergo irreversible morphological and biochemical changes during storage. Reduced levels of deformability have been reported for stored erythrocytes. Erythrocyte deformability is essential for healthy microcirculation. OBJECTIVE The aim of this study is to evaluate shear stress (SS) induced improvements of erythrocyte deformability in stored blood. METHODS Deformabi...
Preservation of bio-specimens for molecular biological applications traditionally involves freezing which increases laboratory and research project costs. Protection and stabilization of DNA at room temperature (RT) may eliminate the costs associated with freezer storage. However, there is a paucity of information describing the yield, purity, and integrity of DNA stored at RT. Objectives were ...
BACKGROUND Intravascular red cell hemolysis impairs nitric oxide (NO)-redox homeostasis, producing endothelial dysfunction, platelet activation, and vasculopathy. Red blood cell storage under standard conditions results in reduced integrity of the erythrocyte membrane, with formation of exocytic microvesicles or microparticles and hemolysis, which we hypothesized could impair vascular function ...
Red blood cells undergo a series of biochemical fluctuations during 35-42-day storage period at 1°C to 6°C. The sodium/potassium pump is immobilised causing a decrease in intracellular potassium with an increase in cytoplasmic sodium levels, glucose levels decline, and acidosis occurs as a result of low pH levels. The frailty of stored erythrocytes triggers the formation of haemoglobin-containi...
Background: Early and non-invasive determination of blood glucose level is of great importance. We aimed to present a new technique to accurately infer the blood glucose concentration in peripheral blood flow using non-invasive optical monitoring system. Methods: The data for the research were obtained from 900 individuals. Of them, 750 people had diabetes mellitus (DM). The system was ...
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