【摘要】 本文讨论了氦氖激光照射小白鼠后其骨髓的细胞分裂率,发现对照组与2934mJ/mm~2、2718mmJ/mm~2、2040mJ/mm~2激光隔日照射组之间有显著差异(P<0.01或0.05);但与同上剂量隔5日照射组之间无显著差异(P>0.05)。我们认为氦氖激光隔日照射可促进小白鼠骨髓的细胞分裂。本文还分析了2934mJ/mm~2、2718mJ/mm~2隔日照射小白鼠后骨髓细胞染色体及微核出现率的变化,发现2934mJ/mm~2照射后染色体数目异常与对照组间有显著性统计学差异(P<0.05),2718ml/mm~2照射后染色体数目异常以及2934mJ/mm~2、2718mJ/mm~2照射后染色体结构畸变和微核出现率与对照组均无显著差异。更多还原

【Abstract】 This paper discusses the cell division rate of the bone marrow after the He-Ne laser irradiation on mice. It was found that there were significant differences(p<0.01 or p<0.05)between the control group and the experiment one irradiated by laser of 2934mJ/mm~2, 2718mJ/mm~2, 2040mJ/mm~2 every other day, but no differences(P>0.05) between the control group and experiment group irratiated by the same laser every five days. We consider that the He-Ne laser irradiation performed every other day might promote the cell division of bone marrowin mice. The paper also analyzed the changes of this bone marrow chromosomes and the incidence of micronuclei when the mice were irradiated by the lasers of 2934mJ/mm~2, 2718mJ/mm~2 every other day. It was found that there were statistically significant difference(P<0.05)between the chromosome numerical aberration of the control group and that of the experiment one when irradiated by the laser of 2934mJ/mm~2 every other day, but no difference by the laser of 2718mJ/mm~2 every other day. Between the chromosome structural aberration and incidence of micronuclei of the control group and that of the experiment one no difference was found when the mice were irradiated by 2934mJ/mm~2 and 2718mJ/mm~2更多还原