Quantitative and qualitative effect of gamma-ray dose-rate on mutagenesis in human lymphoblastoid cells.

abstract：:In this report, in situ hybridization with whole chromosome painting probes was used to paint radiation-induced micronuclei (MN) in three lymphoblastoid cells lines to investigate the frequency of radiation-induced MN. The results obtained for four different chromosomes showed that there was a significant deviation of...

journal_title：International journal of radiation biology

authors： Slavotinek A,Sauer-Nehls S,Braselmann H,Taylor GM,Nüsse M

更新日期：1996-10-01 00:00:00

abstract：:In mice, external X- or gamma-irradiation may induce thymic lymphomas or myeloid leukaemias, while bone-seeking alpha-emitters may induce osteosarcomas and, to a lesser extent, acute myeloid leukaemia. The present paper aims to review briefly some of the experimental data with respect to the molecular mechanisms under...

journal_title：International journal of radiation biology

authors： Janowski M,Cox R,Strauss PG

更新日期：1990-04-01 00:00:00

abstract：:Recently, it has been demonstrated that two different thermal resistant states found in Chinese hamster cells, one transient, associated with thermotolerance, and the other permanent, associated with the increased expression of the cognate member of the hsp 70 family, are characterized by faster recovery from heat-ind...

journal_title：International journal of radiation biology

authors： Laszlo A,Davidson T,Hu A,Landry J,Bedford J

更新日期：1993-05-01 00:00:00

abstract：:Murine bone marrow contains osteogenic precursor cells that undergo differentiation during in vitro cultivation. In vitro these cells are potential target cells for alpha-irradiation-induced bone tumour formation. Under defined tissue culture conditions these differentiating cells were directly exposed to alpha-partic...

journal_title：International journal of radiation biology

authors： Schoeters GE,Vander Plaetse F,van den Heuvel RL

更新日期：1994-08-01 00:00:00

abstract：PURPOSE:To investigate whether mobile phone radiation might affect snail nociception, employing radiofrequency (RF) electromagnetic fields (EMF) which, to our knowledge, have hitherto not been studied in a snail model. Exposure to extremely low frequency (ELF) magnetic fields has however been shown to significantly aff...

journal_title：International journal of radiation biology

authors： Nittby H,Moghadam MK,Sun W,Malmgren L,Eberhardt J,Persson BR,Salford LG

更新日期：2012-03-01 00:00:00

abstract：PURPOSE:Gamma-irradiation leads to activation of p53 tumour suppressor gene and to p53-dependant stimulation of a large panel of cellular genes including proapoptotic genes involved in intrinsic and extrinsic pathways. Most in vivo published data referred to high (lethal) irradiation doses. The present study was perfor...

journal_title：International journal of radiation biology

authors： Alvarez S,Drané P,Meiller A,Bras M,Deguin-Chambon V,Bouvard V,May E

更新日期：2006-11-01 00:00:00

abstract：PURPOSE:The prolonged delivery times associated with intensity modulated radiation therapy (IMRT) may reduce treatment effectiveness of radiation therapy for cancers with short repair half-times. In this study, in vitro radiation experiments with DU-145 prostate cancer cells were designed to quantify the half-time of s...

journal_title：International journal of radiation biology

authors： Wang JZ,Rhee JG,Shi P,Stewart RD,Allen Li X

更新日期：2008-06-01 00:00:00

abstract：:Diploid elongated spermatids of mice were enriched by flow cytometry and cell sorting using a new type of sorter (Partec). The sorted abnormal spermatids were identified morphologically and by nuclear area integration. The radiation-induced increase in the frequency of diploid elongated spermatids was monitored with t...

journal_title：International journal of radiation biology

authors： Hacker-Klom U,Heiden T,Otto FJ,Mauro F,Göhde W

更新日期：1989-05-01 00:00:00

abstract：PURPOSE:Cartilage degradation usually results as a consequence of inflammatory processes in the joints. To study this phenomenon experimentally, adjuvant-induced arthritis (AIA) was used as a model of chronic inflammation under the influence of irradiation. The potential chondroprotective effect of 13% aqueous extract ...

journal_title：International journal of radiation biology

authors： El-Ghazaly MA,El-Naby DH,Khayyal MT

更新日期：2011-03-01 00:00:00

abstract：:Pre-implantation embryos of the mouse were studied for the occurrence of an adaptive response, i.e. induction of radio-resistance by a previous low dose. Various experimental designs were checked (initial doses between 3 and 10 cGy; second dose 2-6 Gy at 6-24 h after the first dose). Some of the experiments were carri...

journal_title：International journal of radiation biology

authors： Müller WU,Streffer C,Niedereichholz F

更新日期：1992-08-01 00:00:00

abstract：:Survival of HT29 cells was measured after irradiation with single doses of X-rays (0.05-5 Gy) and neutrons (0.025-1.5 Gy), using a Dynamic Microscopic Imaging Processing Scanner (DMIPS) with which individual cells can be accurately located in tissue culture flasks, their positions recorded, and after an appropriate in...

journal_title：International journal of radiation biology

authors： Lambin P,Marples B,Fertil B,Malaise EP,Joiner MC

更新日期：1993-05-01 00:00:00

abstract：PURPOSE:The hemorrhagic syndrome is a major cause of morbidity and mortality associated with the acute radiation syndrome (ARS). We previously characterized the dose-response relationship for total body irradiation (TBI)-induced ARS in the New Zealand White (NZW) rabbit. Thrombocytopenia, hemorrhage, and anemia were st...

journal_title：International journal of radiation biology

authors： Jackson IL,Gurung G,Ayompe E,Fown ER,Triesler S,Mali B,Casildo A,Gibbs A,Poirier Y,Cohen EP,Newman D,Vujaskovic Z

更新日期：2020-10-16 00:00:00

abstract：:Radiation-induced DNA double-strand breaks (dsbs) were measured in CHO-K1 cells by means of an experimental approach involving constant-field gel electrophoresis and densitometric scanning of ethidium bromide stained gels. For X-irradiation, an induction efficiency of 36 +/- 5 dsbs (Gy x cell)-1 was determined. With t...

journal_title：International journal of radiation biology

authors： Heilmann J,Taucher-Scholz G,Kraft G

更新日期：1995-08-01 00:00:00

abstract：PURPOSE:To evaluate how irradiation affects thyroid autoimmunity in mouse models of Hashimoto's thyroiditis and Graves' hyperthyroidism. MATERIALS AND METHODS:Non-obese diabetic (NOD)-H2(h4) mice spontaneously develop anti-thyroglobulin (Tg) antibodies and thyroiditis when supplied with sodium iodine (NaI) in the drin...

journal_title：International journal of radiation biology

authors： Nagayama Y,Kaminoda K,Mizutori Y,Saitoh O,Abiru N

更新日期：2008-09-01 00:00:00

abstract：:High doses of rHIL-1 protected C3H/HeN mice against lethal radiation damage. The optimum time of radioprotection was found when this cytokine was administered at 4 h and at 20 h before irradiation. The dose reduction factors when the IL-1 was administered at those times were about 1.30. The radioprotection at the opti...

journal_title：International journal of radiation biology

authors： Wu SG,Tuboi A,Miyamoto T

更新日期：1989-10-01 00:00:00

abstract：:A review is presented to the program of education and training setup within the DoReMi Network of Excellence. DoReMi was funded by Euratom under the EU 7th Framework Programme to coordinate the EU research into risks from low-dose ionizing radiation. It was seen to be necessary to form a network of expert institutions...

journal_title：International journal of radiation biology

authors： Ottolenghi A,Trott KR,Smyth V

更新日期：2019-01-01 00:00:00

abstract：PURPOSE:Ionizing radiation (IR) produced a dose-dependent increase in apoptosis in U937/pCEP4 cells which was attenuated by the stable over expression of Bcl-2 (U937/Bcl-2). A dose of 2 Gy IR was selected for further analyses to determine if subsequent exposure to 10nM bryostatin- would overcome the resistance to IR-in...

journal_title：International journal of radiation biology

authors： Cartee L,Davis C,Lin PS,Grant S

更新日期：2000-10-01 00:00:00

abstract：PURPOSE:To construct a quantitative model of the radiation-induced bystander effect based on diffusion-type spreading of bystander signal communication between the hit and non-hit cells. Cell inactivation and induced oncogenic transformation by broad- and microbeam irradiation systems are considered. MATERIALS AND MET...

journal_title：International journal of radiation biology

authors： Nikjoo H,Khvostunov IK

更新日期：2003-01-01 00:00:00

abstract：PURPOSE:To investigate whether an adaptive response can be induced in mice which were pre-exposed to 900 MHz radiofrequency fields. MATERIALS AND METHODS:Adult male Kunming mice were exposed to 900 MHz radiofrequency fields (RF) at power intensities of 12, 120 and 1200 μW/cm(2) for 1 h/day for 14 days and then subject...

journal_title：International journal of radiation biology

authors： Cao Y,Xu Q,Jin ZD,Zhou Z,Nie JH,Tong J

更新日期：2011-07-01 00:00:00

abstract：:This study evaluated the cell-mediated (CMI) and humoral immune responses in four Beagle dogs five to six years after single inhalation exposures to different monodisperse 239PuO2 aerosols (0.72-1.4 microns activity median aerodynamic diameter). These exposures resulted in initial lung burdens ranging from 19 to 35 kB...

journal_title：International journal of radiation biology

authors： Galvin JB,Bice DE,Guilmette RA,Muggenburg BA,Haley PJ

更新日期：1989-02-01 00:00:00

abstract：:Radiation-induced DNA double-strand breaks (dsb) were studied in Ehrlich ascites tumour cells (EATC) by sedimentation in neutral sucrose gradients at low centrifuge speed. Dsb induction was found to be linear with dose with a frequency of: ndsbmr-1D-1 = (11.7 +/- 2) x 10(-12)Gy-1 for 140 kV X-rays and ndsbmr-1D-1 = (1...

journal_title：International journal of radiation biology

authors： Blöcher D

更新日期：1988-11-01 00:00:00

abstract：PURPOSE:Testicular seminoma cancer incidence has significantly increased over the last few decades, and although it is successfully treated by radiotherapy, long-term health risks are still unclear. The aim of the study was to show long-term genome damage in patients with seminoma after radiotherapy. MATERIALS AND MET...

journal_title：International journal of radiation biology

authors： Fucic A,Gamulin M,Katic J,Milic M,Druzhinin V,Grgić M

更新日期：2013-11-01 00:00:00

abstract：PURPOSE:Since the number of cancer patients treated by proton irradiation has increased in the last few years, it seems appropriate to study dose-dependent effects of proton irradiation on mammalian tissues in more detail. MATERIALS AND METHODS:Tissue samples of normal skin of mouse and swine, of a human tumour model ...

journal_title：International journal of radiation biology

authors： Synytsya A,Alexa P,Besserer J,De Boer J,Froschauer S,Gerlach R,Loewe M,Moosburger M,Obstová I,Quicken P,Sosna B,Volka K,Würkner M

更新日期：2004-08-01 00:00:00

abstract：PURPOSE:Immune cells accumulate in and around cancers and cooperate with each other using specific cytokines to attack the cancer cells. The heavy-ion beams for cancer therapy may stimulate immune cells and affect on the immune system. However, it is still poorly understood how the immune cells are stimulated by ion-be...

journal_title：International journal of radiation biology

authors： Mutou-Yoshihara Y,Funayama T,Yokota Y,Kobayashi Y

更新日期：2012-03-01 00:00:00

abstract：:Purpose: A study is presented of the irradiation of cancerous cervical cell line HeLa loaded with a platinum salt, betamethasone and deoxyglucose. The presence of the platinum increases the free-radical concentration and augments the cell death rate, whereas betamethasone or deoxyglucose induces radiosensitization by ...

journal_title：International journal of radiation biology

authors： Usami N,Hirayama R,Kobayashi K,Furusawa Y,Le Sech C

更新日期：2020-05-01 00:00:00

abstract：PURPOSE:Although the significance of cell cycle checkpoints in overcoming low-dose hyper-radiosensitivity (HRS) has been proposed, the underlying mechanism of HRS in human hepatocellular cells remains unclear. Therefore, the aim of this study was to characterize HRS inhuman hepatocellular HepG2 cells and to explore the...

journal_title：International journal of radiation biology

authors： Xue J,Zong Y,Li PD,Wang LX,Li YQ,Niu YF

更新日期：2016-10-01 00:00:00

abstract：PURPOSE:Effects of radiation on the differentiation of C2C12 myoblasts were studied using cell cultures in which the cells differentiated into either muscle cells or osteoblasts. MATERIALS AND METHODS:A mouse skeletal myoblast cell line, C2C12, was cultured and irradiated at confluence. Muscle differentiation was esti...

journal_title：International journal of radiation biology

authors： Ikeda S,Hachisu R,Yamaguchi A,Gao YH,Okano T

更新日期：2000-03-01 00:00:00

abstract：PURPOSE:To study the relationship between cell reproductive death and exchange frequency in SW-1573 human lung tumour cells with and without incorporated iodo-deoxyuridine (IdUrd) following irradiation of plateau-phase cultures with y-rays. METHOD:Linear-quadratic (LQ) analysis was performed for the data on clonogenic...

journal_title：International journal of radiation biology

authors： Franken NA,Ruurs P,Ludwików G,van Bree C,Kipp JB,Darroudi F,Barendsen GW

更新日期：1999-03-01 00:00:00

abstract：PURPOSE:Exposure to ionizing radiation induces plant defenses by regulating the expression of response genes. The systemic acquired resistance deficient 1 (SARD1) is a key gene in plant defense response. In this study, the function of Oryza sativa SARD1 (OsSARD1) was investigated after exposure of seeds/plants to ioniz...

journal_title：International journal of radiation biology

authors： Jung IJ,Hwang JE,Han SM,Kim DS,Ahn JW,Choi HI,Kwon SJ,Kang SY,Kim JB

更新日期：2017-07-01 00:00:00

abstract：PURPOSE:To investigate the influence of chromatin organization and scavenging capacity in relation to irradiation temperature on the induction of double-strand breaks (DSB) in structures derived from human diploid fibroblasts. MATERIALS AND METHODS:Agarose plugs with different chromatin structures (intact cells+/-wort...

journal_title：International journal of radiation biology

authors： Elmroth K,Nygren J,Stenerlöw B,Hultborn R

更新日期：2003-10-01 00:00:00