观察生长抑制和DNA损伤基因45(Growth arrest and DNA damage gene 45,GADD45)X射线照射后表达的改变,并研究其与照射剂量之间的关系。外周血给予0-5 GyX线照射后分离出单个核细胞并培养,在不同时间点上用反转录聚合酶链反应(Reverse tr...观察生长抑制和DNA损伤基因45(Growth arrest and DNA damage gene 45,GADD45)X射线照射后表达的改变,并研究其与照射剂量之间的关系。外周血给予0-5 GyX线照射后分离出单个核细胞并培养,在不同时间点上用反转录聚合酶链反应(Reverse transcriptase-Polymerase clain reaction,RT-PCR)的方法测定 GADD45基因的相对表达量,分析该基因的剂量、效应关系。照射后GADD45基因在转录水平表达呈剂量依赖性增加,照射后4h达峰值,以后开始下降,但在24h仍未恢复到初始水平。展开更多
The aim of the present study is to analyze the global research trend of radiation-responsive genes and identify the highly reproducible radiation-responsive genes. Bibliometric methods were applied to analyze the glob...The aim of the present study is to analyze the global research trend of radiation-responsive genes and identify the highly reproducible radiation-responsive genes. Bibliometric methods were applied to analyze the global research trend of radiation-responsive genes. We found 79 publications on radiation-responsive genes from 2000 to 2017. A total of 35 highly reproducible radiation-responsive genes were identified. Most genes are involved in response to DNA damage, cell proliferation, cell cycle regulation, and DNA repair.The p53 signal pathway was the top enriched pathway. The expression levels of 18 genes in human B lymphoblastoid cell line（AHH-1） cells were significantly up-regulated in a dose-dependent manner at 24 h after exposure to 0-5 Gy ^60 Coγ-ray irradiation. Our results indicate that developing a gene expression panel with the 35 high reproducibility radiation-responsive genes may be necessary for qualitative and quantitative assessment after exposure.展开更多
Cytogenetic indicators,especially dicentric chromosomes,have been globally considered the gold standard of biological dose estimation for more than 60 years.The application of these indicators to biological dose estim...Cytogenetic indicators,especially dicentric chromosomes,have been globally considered the gold standard of biological dose estimation for more than 60 years.The application of these indicators to biological dose estimation in victims of radiation accidents in China has undergone approximately 40 years of development and thus provides more accurate information for the clinical diagnosis and patients’treatment.This paper reviews the application and future development of cytogenetic indicators,including chromosomal aberrations(dicentric chromosomes and chromosomal translocations),cytokinesis-block micronuclei,nucleoplasmic bridges,and premature condensation chromosome ring,as biodosimeters in China.展开更多
采用Web of Science核心合集数据库和中国知网数据库(CNKI)获得文献数据,运用文献计量学方法和CiteSpace(6.2.R4)、VOSviewer(版本号1.6.19)软件,以辐射敏感基因检测作为生物剂量计的研究主题在文献、作者、机构、期刊等方面进行分析。...采用Web of Science核心合集数据库和中国知网数据库(CNKI)获得文献数据,运用文献计量学方法和CiteSpace(6.2.R4)、VOSviewer(版本号1.6.19)软件,以辐射敏感基因检测作为生物剂量计的研究主题在文献、作者、机构、期刊等方面进行分析。WOS数据库结果显示,2000—2023年,在辐射敏感基因检测作为生物剂量计研究主题的文献总量从3篇增长到297篇;美国是这个领域中研究比较活跃的国家,中国发文量排世界第7;Radiation Research,International Journal of Radiation Biology,Scientific Reports,Health Physics等是该研究主题的重要学术期刊同时也有较高的共被引频次;关键词聚类反映出该领域主要研究方向为DNA损伤-修复、细胞凋亡、p53信号通路、体内-体外试验、生物剂量计模型。共被引文献显示基因FDXR作为生物剂量计的研究是最近引用量最多的文献,也是该领域研究热点。CNKI数据库结果分析显示单个基因(MDM2、GADD45、XPC、FDXR、HPRT)剂量-效应关系研究是国内该领域主要研究方向。同时提示基因集群检查为基因检测作为生物剂量计未来研究方向。展开更多
基金financially supported by the National Natural Science Foundation of China[Nos.81172593,81573081]
文摘The aim of the present study is to analyze the global research trend of radiation-responsive genes and identify the highly reproducible radiation-responsive genes. Bibliometric methods were applied to analyze the global research trend of radiation-responsive genes. We found 79 publications on radiation-responsive genes from 2000 to 2017. A total of 35 highly reproducible radiation-responsive genes were identified. Most genes are involved in response to DNA damage, cell proliferation, cell cycle regulation, and DNA repair.The p53 signal pathway was the top enriched pathway. The expression levels of 18 genes in human B lymphoblastoid cell line（AHH-1） cells were significantly up-regulated in a dose-dependent manner at 24 h after exposure to 0-5 Gy ^60 Coγ-ray irradiation. Our results indicate that developing a gene expression panel with the 35 high reproducibility radiation-responsive genes may be necessary for qualitative and quantitative assessment after exposure.
基金This work was supported by Key Science and Technology Project of Henan Province,China,IDs:142102310086Medical Science and Technology Reseach of Henan Province,China,IDs:LHGJ20190815。
文摘Cytogenetic indicators,especially dicentric chromosomes,have been globally considered the gold standard of biological dose estimation for more than 60 years.The application of these indicators to biological dose estimation in victims of radiation accidents in China has undergone approximately 40 years of development and thus provides more accurate information for the clinical diagnosis and patients’treatment.This paper reviews the application and future development of cytogenetic indicators,including chromosomal aberrations(dicentric chromosomes and chromosomal translocations),cytokinesis-block micronuclei,nucleoplasmic bridges,and premature condensation chromosome ring,as biodosimeters in China.
文摘采用Web of Science核心合集数据库和中国知网数据库(CNKI)获得文献数据,运用文献计量学方法和CiteSpace(6.2.R4)、VOSviewer(版本号1.6.19)软件,以辐射敏感基因检测作为生物剂量计的研究主题在文献、作者、机构、期刊等方面进行分析。WOS数据库结果显示,2000—2023年,在辐射敏感基因检测作为生物剂量计研究主题的文献总量从3篇增长到297篇;美国是这个领域中研究比较活跃的国家,中国发文量排世界第7;Radiation Research,International Journal of Radiation Biology,Scientific Reports,Health Physics等是该研究主题的重要学术期刊同时也有较高的共被引频次;关键词聚类反映出该领域主要研究方向为DNA损伤-修复、细胞凋亡、p53信号通路、体内-体外试验、生物剂量计模型。共被引文献显示基因FDXR作为生物剂量计的研究是最近引用量最多的文献,也是该领域研究热点。CNKI数据库结果分析显示单个基因(MDM2、GADD45、XPC、FDXR、HPRT)剂量-效应关系研究是国内该领域主要研究方向。同时提示基因集群检查为基因检测作为生物剂量计未来研究方向。
