[单次及慢性小剂量低强度照射对脑片钾离子转运的影响]
[Effects of single and chronic low-intensity irradiation in small doses on K+ transport in brain slices].
作者信息
Dvoretskiĭ A I, Zaĭtseva I A, Egorova E G
机构信息
Research Institute of Biology, Dniepropetrovsk National University, 49050 Ukraine.
出版信息
Radiats Biol Radioecol. 2002 Sep-Oct;42(5):492-7.
Single and/or chronic X-ray low-intensity irradiation in doses from 0.01 up to 0.5 Gy invokes non-linear, oscillatory changes of K+ content in a native tissue of rat brain, and also of Na,K-pump activity in slices of rat brain cortex, incubated in vitro. It is found out that effects of separately taken equal doses of single and chronic exposure are of unequal means or of diverse directions. Thus the single irradiation is characterized by the lower degree of postradiation recovery processes.
单次和/或慢性低强度X射线照射，剂量从0.01到0.5 Gy，会引起大鼠脑组织中钾离子含量以及体外培养的大鼠大脑皮质切片中钠钾泵活性的非线性振荡变化。研究发现，单独给予等量的单次照射剂量和慢性照射剂量所产生的效应，其方式不同或方向各异。因此，单次照射的特点是辐射后恢复过程的程度较低。
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