Potassium concentrations in irradiated blood.

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Potassium concentrations in irradiated blood.

Blood components are irradiated to reduce the risk of graft versus host disease induced by transfusion in a wide range of immunocompromised patients. Irradiation has been claimed to be harmless to red cells and neutrophil function and to have little effect on platelet increments.'`3 A case of fatal graft versus host disease induced by transfusion in a child prompted our paediatric oncologists t...

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Changes in potassium and sodium concentrations in stored blood

Potassium is the principal intracellular cation with sodium being the principal extracellular cation. Maintenance of the distribution of potassium and sodium between the intracellular and the extracellular compartments relies on several homeostatic mechanisms. This study analysed the effect of blood storage on the concentrations of potassium and sodium in stored blood and also determine any var...

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Prompt cytomolecular identification of chromosome aberration in irradiated blood cells

Background: understanding the genomic alteration induced by ionizing radiation still remains to be a methodological challenge in genetic field. The energy released from this type of radiation can potentially causes structural and numerical alterations in lymphocytes, which in turn converts them into abnormal tumor cells. Chromosomal abnormalities associated with specific type of hematological m...

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Effect of oxygen and temperature on the potassium efflux of irradiated, stored red blood cells.

Gamma irradiation of blood is performed to prevent transfusion-associated graft-versus-host disease and can result in an accelerated efflux of intracellular potassium (K+). The oxygen content of the blood and the temperature at which the irradiation is carried out are two variables reported to affect this shift; they were investigated in two separate studies. Study A-Four units of AS-5 red bloo...

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Hysteresis and memory effects in irradiated potassium blue bronzes

2014 Molybdenum blue bronzes exhibit below the Peierls transition time-dependent phenomena. These properties, which are related to the charge density wave instability, are often associated to the presence of defects. In this paper we show that the hysteresis observed during temperature cycling is amplified when defects are introduced by irradiation. We describe two new phenomena observed after ...

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ژورنال

عنوان ژورنال: BMJ

سال: 1992

ISSN: 0959-8138,1468-5833

DOI: 10.1136/bmj.304.6819.120