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[在体外暴露于不同剂量氘核(受阿德图隆保护)的情况下人类淋巴细胞中发生的染色体疾病频率]

[Frequency of chromosome disorders occurring in human lymphocytes in the in vitro exposure to different doses of deuterons as protected by adeturon].

作者信息

Bulanova M D, Ivanov B A, Mileva M S, Ryzhov N I, Gerasimenko V N

出版信息

Genetika. 1982 Jul;18(7):1164-8.

PMID:6889553
Abstract

Peripheral blood of 4 healthy donors was exposed to deutrons with the energy 4,2 GeV/nuclone and the intensivity of 4 to 6.10(10) particles per impulse, the capacity of the dose being 0,008 Gr/sec. The LPE of deutrons was 2,14 MeV sm2/g. Irradiation doses were 0,26; 0,49; 0,97; 2,02; 3,80 Gr. 15-20 min prior to irradiation, the protector adeturone was added at a concentration of 550 micrograms/ml of blood. Chromosome aberrations were analyzed in protected and unprotected blood samples. The results were treated using the method of variance and regression analysis. The correlative correspondence between the number of chromosome aberrations and an approximate dose of actual irradiation was established as Y = 0,13 d + 6,55.10(-4) D2 for dicentrics and as 0,26 D + 12,6.10(-4) D2 + 4,5 for the total percentage of aberrations. The pattern of the dose - effect dependence was retained in protected samples. The calculated values of the factor of dose decrease confirmed antiirradiation properties of adeturone.

摘要

4名健康供体的外周血暴露于能量为4.2 GeV/核子、每脉冲强度为4至6×10¹⁰个粒子的氘核中,剂量率为0.008戈瑞/秒。氘核的传能线密度为2.14兆电子伏·平方厘米/克。照射剂量分别为0.26、0.49、0.97、2.02、3.80戈瑞。在照射前15至20分钟,以550微克/毫升血液的浓度加入保护剂阿得妥龙。对受保护和未受保护的血样进行染色体畸变分析。结果采用方差分析和回归分析方法处理。对于双着丝粒染色体畸变,染色体畸变数量与实际照射近似剂量之间的相关对应关系确定为Y = 0.13d + 6.55×10⁻⁴D²;对于畸变总百分比,相关对应关系为0.26D + 12.6×10⁻⁴D² + 4.5。在受保护的样本中保留了剂量 - 效应依赖模式。剂量降低因子的计算值证实了阿得妥龙的抗辐射特性。

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