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羟自由基清除剂对红细胞膜辐射损伤的影响。

Effect of .OH scavengers on radiation damage to the erythrocyte membrane.

作者信息

Grzelińska E, Bartkowiak A, Bartosz G, Leyko W

出版信息

Int J Radiat Biol Relat Stud Phys Chem Med. 1982 May;41(5):473-81. doi: 10.1080/09553008214550551.

DOI:10.1080/09553008214550551
PMID:6807930
Abstract

Thiourea, and .OH scavenger, reduced the gamma-radiation-induced changes in the rigidity of erythrocyte membrane lipids, the state of membrane proteins, and lipid peroxidation. Several .OH scavengers, but not superoxide dismutase, also inhibited the radiation-induced acceleration of the transport of a hydrophilic non-electrolyte spin label TEMPOL across the erythrocyte membrane. The effects of scavengers were usually biphasic with a maximum of the protective effect. Higher concentrations of the scavengers were less effective, as in the case of radioprotection of erythrocytes to haemolysis studied previously.

摘要

硫脲,一种羟基清除剂,可减少γ辐射诱导的红细胞膜脂质刚性、膜蛋白状态和脂质过氧化的变化。几种羟基清除剂,而非超氧化物歧化酶,也抑制了辐射诱导的亲水性非电解质自旋标记物TEMPOL跨红细胞膜转运的加速。清除剂的作用通常呈双相,具有最大保护作用。清除剂浓度越高效果越差,这与之前研究的红细胞抗溶血辐射防护情况相同。

相似文献

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Effect of .OH scavengers on radiation damage to the erythrocyte membrane.羟自由基清除剂对红细胞膜辐射损伤的影响。
Int J Radiat Biol Relat Stud Phys Chem Med. 1982 May;41(5):473-81. doi: 10.1080/09553008214550551.
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[The effect of ionizing radiation in a wide dosage range on the structural-functional characteristics of the protein and lipid components of erythrocyte plasma membranes].[宽剂量范围内电离辐射对红细胞质膜蛋白质和脂质成分结构功能特性的影响]
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Effect of thiol reagents and ionizing radiation on the permeability of erythrocyte membrane for spin-labeled non-electrolytes.硫醇试剂和电离辐射对红细胞膜对自旋标记非电解质的通透性的影响。
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引用本文的文献

1
Lipid peroxidation in microsomes of murine bone marrow after low-dose gamma-irradiation.
Radiat Environ Biophys. 1994;33(4):315-23. doi: 10.1007/BF01210453.
2
Ionizing radiation-induced structural modification of human red blood cells.电离辐射诱导的人类红细胞结构改变。
Radiat Environ Biophys. 1991;30(1):45-52. doi: 10.1007/BF01595573.