International journal of radiation biology and related studies in physics, chemistry, and medicine最新文献_第10页

Interaction of factors modifying the radiosensitivity of dormant seeds: a review. 影响休眠种子辐射敏感性因子的相互作用研究进展。

International journal of radiation biology and related studies in physics, chemistry, and medicine Pub Date : 1987-12-01 DOI: 10.1080/09553008714552421

R R Atayan

引用次数: 9

Evaluation of radiation dose resulting from the ingestion of [3H]- and [14C]thymidine in the rat. 大鼠摄入[3H]-和[14C]胸苷引起的辐射剂量评估。

International journal of radiation biology and related studies in physics, chemistry, and medicine Pub Date : 1987-12-01 DOI: 10.1080/09553008714552531

H Takeda, T Iwakura

{"title":"Evaluation of radiation dose resulting from the ingestion of [3H]- and [14C]thymidine in the rat.","authors":"H Takeda, T Iwakura","doi":"10.1080/09553008714552531","DOIUrl":"https://doi.org/10.1080/09553008714552531","url":null,"abstract":"Average doses to rat tissues from the ingestion of 2-[14C]thymidine were compared with those from methyl-[3H]thymidine or 6-[3H]thymidine. Among the three precursors, [14C]thymidine gave the highest dose to spleen and small intestine. The doses to other tissues from [14C]thymidine were almost the same or lower as compared with those from [3H]thymidine, irrespective of the 9 times higher beta-ray energy of 14C than that of 3H. In the case of [14C]thymidine, most of the dose was given by radioactivity incorporated into the organic tissue constituents (non-volatile radioactivity). In the case of [3H]thymidine, however, the dose contributions by non-volatile radioactivity were very small and the major contributions were rather from volatile radioactivity (3HHO), formed by degradation of [3H]thymidine. No significant difference in their total doses was found between the two [3H]precursors, but the dose from non-volatile radioactivity alone was 2-3 times higher with methyl-[3H]thymidine than with 6-[3H]thymidine. Estimates of the dose to cell nuclei in various tissues after the ingestion of [3H]thymidine were also made in order to predict more precisely possible radiation hazards.","PeriodicalId":14254,"journal":{"name":"International journal of radiation biology and related studies in physics, chemistry, and medicine","volume":"52 6","pages":"957-64"},"PeriodicalIF":0.0,"publicationDate":"1987-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/09553008714552531","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14624815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Use of 'nuclear monolayers' to identify factors influencing DNA double-strand breakage by X-rays. 利用“核单层”通过x射线识别影响DNA双链断裂的因素。

International journal of radiation biology and related studies in physics, chemistry, and medicine Pub Date : 1987-12-01 DOI: 10.1080/09553008714552441

I R Radford

引用次数: 18

Differences in the uptake of transferrin bound 239Pu and 59Fe into multicellular spheroids of hepatocytes from adult male rats. 转铁蛋白结合的239Pu和59Fe在成年雄性大鼠肝细胞多细胞球体摄取的差异。

International journal of radiation biology and related studies in physics, chemistry, and medicine Pub Date : 1987-12-01 DOI: 10.1080/09553008714552471

F Schuler, C Csovcsics, D M Taylor

引用次数: 10

A radioprotector: cysteamine, inhibits oxygen transport in lipidic membranes. 一种放射性保护剂:半胱胺，抑制脂质膜中的氧运输。

International journal of radiation biology and related studies in physics, chemistry, and medicine Pub Date : 1987-12-01 DOI: 10.1080/09553008714552431

A Vachon, V Roman, C Lecomte, G Folcher, M Fatôme, P Braquet, F Berleur

引用次数: 9

The kinetics of repair in mouse lung after fractionated irradiation. 分级辐照后小鼠肺修复动力学研究。

International journal of radiation biology and related studies in physics, chemistry, and medicine Pub Date : 1987-12-01 DOI: 10.1080/09553008714552491

E L Travis, H D Thames, T L Watkins, I Kiss

{"title":"The kinetics of repair in mouse lung after fractionated irradiation.","authors":"E L Travis, H D Thames, T L Watkins, I Kiss","doi":"10.1080/09553008714552491","DOIUrl":"https://doi.org/10.1080/09553008714552491","url":null,"abstract":"The kinetics of repair of sublethal damage in mouse lung was studied after fractionated doses of 137Cs gamma-rays. A wide range of doses per fraction (1.7-12 Gy) was given with interfraction intervals ranging from 0.5 to 24 h. The data were analysed by a direct method of analysis using the incomplete repair model. The half-time of repair (T1/2) was 0.76 h for the pneumonitis phase of damage (up to 8 months) and 0.65 h for the later phase of damage up to 12 months. The rate of repair was dependent on fraction size for both phases of lung damage and was faster after large dose fractions than after small fractions. The T1/2 was 0.6 h (95 per cent c.1. 0.53, 0.69) for doses per fraction greater than 5 Gy and 0.83 h (95 per cent c.1 0.76, 0.92) for doses per fraction of 2 Gy. Repair was nearly complete by 6 h, at least for the pneumonitis phase of damage. To the extent that extrapolation of these data to humans may be valid, these results imply that treatments with multiple fractions per day that involve the lung will not be limited by the necessity for interfraction intervals much longer than 6 h.","PeriodicalId":14254,"journal":{"name":"International journal of radiation biology and related studies in physics, chemistry, and medicine","volume":"52 6","pages":"903-19"},"PeriodicalIF":0.0,"publicationDate":"1987-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/09553008714552491","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14624813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 76

Sperm shape abnormalities in mice exposed to californium-252 radiation. 受加州-252辐射的小鼠精子形状异常。

International journal of radiation biology and related studies in physics, chemistry, and medicine Pub Date : 1987-11-01 DOI: 10.1080/09553008714552261

S N Goud, J M Feola, Y Maruyama

引用次数: 6

On the effect of oxygen or copper(II) in radiation-induced degradation of DNA in the presence of thiols. 氧或铜(II)在硫醇存在下辐射诱导的DNA降解中的作用。

International journal of radiation biology and related studies in physics, chemistry, and medicine Pub Date : 1987-11-01 DOI: 10.1080/09553008714552191

W A Prütz, H Mönig

引用次数: 32

Association of plutonium with lysosomal, lipofuscin-like granules in Chinese hamster hepatocytes: evidence from electron microscopic and biochemical studies with 241Pu and 239Pu. 中国仓鼠肝细胞中钚与溶酶体、脂褐素样颗粒的关联:来自241Pu和239Pu的电镜和生化研究证据。

International journal of radiation biology and related studies in physics, chemistry, and medicine Pub Date : 1987-11-01 DOI: 10.1080/09553008714552231

G Hotz, A Seidel

{"title":"Association of plutonium with lysosomal, lipofuscin-like granules in Chinese hamster hepatocytes: evidence from electron microscopic and biochemical studies with 241Pu and 239Pu.","authors":"G Hotz, A Seidel","doi":"10.1080/09553008714552231","DOIUrl":"https://doi.org/10.1080/09553008714552231","url":null,"abstract":"This electron-microscopic-autoradiographic study was undertaken to identify the cell organelles, which bind plutonium in Chinese hamster hepatocytes at different times after injection. Female Chinese hamsters were injected intraperitoneally with 241Pu and sacrificed at time intervals of between 4 days and 35 weeks. The Chinese hamster was chosen as the experimental animal as it is a species in which there is virtually no elimination of plutonium from the liver. From the 4th day onwards beta-tracks were found over globular electron-dense structures, which were randomly distributed in the cytoplasm of the hepatocytes and strongly resembled lipofuscin bodies. Comparison of the results with those from biochemical experiments showed good agreement between the morphological and biochemical observations. At early times after injection 241Pu was also found in the hepatocyte nuclei. All the evidence suggests that in this species plutonium in hepatocytes becomes bound to lipofuscin-accumulating lysosomes, which cannot be excreted.","PeriodicalId":14254,"journal":{"name":"International journal of radiation biology and related studies in physics, chemistry, and medicine","volume":"52 5","pages":"723-34"},"PeriodicalIF":0.0,"publicationDate":"1987-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/09553008714552231","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14623318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Bleomycin, in contrast to gamma irradiation, induces extreme variation of DNA strand breakage from cell to cell. 与伽马射线照射相比，博莱霉素在细胞间诱导DNA链断裂的极端变异。

International journal of radiation biology and related studies in physics, chemistry, and medicine Pub Date : 1987-11-01 DOI: 10.1080/09553008714552201

O Ostling, K J Johanson

引用次数: 107