γ辐射对Li+通过人红细胞膜转运的影响。

Cytobios Pub Date : 1998-01-01

C Bindea, V V Morariu, I Chereji

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引用次数: 0

摘要

人红细胞在室温下暴露于剂量高达60 Gy的662 keV γ射线下。总Li+内流以及被动扩散和Na(+)-K+泵浦机制的Li+内流随剂量线性增加。在最高剂量下，Li(+)-Na+反转运机制通过辐照红细胞膜的Li+外排速率常数K降低了约35%。

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The effect of gamma radiation on Li+ transport through human erythrocyte membranes.

Human erythrocytes were exposed at room temperatures to 662 keV gamma radiation at doses up to 60 Gy. The total delta Li+ influx as well as the delta Li+ influx by passive diffusion and Na(+)-K+ pump mechanisms increased linearly with the dose. The rate constant K of Li+ efflux by the Li(+)-Na+ countertransport mechanism through irradiated erythrocyte membranes was reduced by about 35% at the highest dose.

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Cytobios

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