Repair of potentially lethal damage by introduction of T4 DNA ligase in eucaryotic cells.

abstract：PURPOSE:Ionizing radiation induces DNA damage, some of which are present in clusters, defined as two or more lesions within one to two helical turns of DNA by passage of a single radiation track. These clusters are thought to contribute to the detrimental effects of radiation, in part due to the compromised repair of c...

journal_title：International journal of radiation biology

authors： Cunniffe S,Walker A,Stabler R,O'Neill P,Lomax ME

更新日期：2014-06-01 00:00:00

abstract：:Solid human tumours contain areas with low oxygen tension (pO2). For bioreductive drugs it is important to define the cytotoxic effect according to drug concentration and to clinically relevant pO2. In this study, the pO2 dependence of the survival of three human cell lines (HRT 18, Na11 +, and MEWO), exposed to tirap...

journal_title：International journal of radiation biology

authors： Lartigau E,Guichard M

更新日期：1995-02-01 00:00:00

abstract：PURPOSE:To reduce retention and toxicity of the alpha particle emitter polonium-210 in rats by newly developed chelating agents. MATERIALS AND METHODS:Repeated subcutaneous chelation was conducted after intravenous injection of 210Po nitrate. For reduction of 210Po retention the treatment with vicinal dithiols meso-an...

journal_title：International journal of radiation biology

authors： Rencová J,Volf V,Jones MM,Singh PK

更新日期：2000-10-01 00:00:00

abstract：:Cell cultures derived from skin biopsies of mouse fetuses X-irradiated at the zygote stage (2 Gy) were studied for the presence of chromosomal aberrations and micronuclei. In comparison with cells from control, unirradiated fetuses significantly higher spontaneous frequencies of aberrations per 100 metaphases and aber...

journal_title：International journal of radiation biology

authors： Pampfer S,Streffer C

更新日期：1989-01-01 00:00:00

abstract：:A comparison has been made of the in vitro light-activated drug cytotoxicities of two different porphyrin compounds, Photofrin II and TPPS4. An early passage human colon adenocarcinoma cell line, WiDr, has been exposed to either drug for 24 h, the excess drug washed from the cells and the cells irradiated with light u...

journal_title：International journal of radiation biology

authors： West CM,Moore JV

更新日期：1988-10-01 00:00:00

abstract：PURPOSE:Genotoxic effects have been considered the gold standard to determine if an environmental factor is a carcinogen, but the currently available data for extremely low frequency time-varying magnetic fields (ELF-MF) remain controversial. As an environmental stimulus, the effect of ELF-MF on cellular DNA may be sub...

journal_title：International journal of radiation biology

authors： Yoon HE,Lee JS,Myung SH,Lee YS

更新日期：2014-04-01 00:00:00

abstract：PURPOSE:The aim was to evaluate the utility of multiple blood-protein biomarkers for early-response assessment of radiation exposure using a murine radiation model system. MATERIAL AND METHODS:BALB/c male mice (8-10 weeks old) were exposed to whole-body 60Co gamma-rays (10 cGy min(-1)) over a broad dose range (0-7 Gy)...

journal_title：International journal of radiation biology

authors： Ossetrova NI,Blakely WF

更新日期：2009-01-01 00:00:00

abstract：PURPOSE:Dose response and repair kinetics of phosphorylated histone H2A isoform X (gamma-H2AX) foci in T-lymphocytes were investigated in the low-dose range after in vitro irradiation of whole blood and T-lymphocytes with 100 kVp X-rays and (60)Co gamma-rays. MATERIALS AND METHODS:Whole blood or isolated T-lymphocytes...

journal_title：International journal of radiation biology

authors： Beels L,Werbrouck J,Thierens H

更新日期：2010-09-01 00:00:00

abstract：PURPOSE:Following ionizing radiation exposure, intestinal crypt regeneration is possible but it is still not known if regenerating crypts give rise to differentiated functional epithelial cells on villi. The aim of this study was to demonstrate that irradiated progeny of enterocytic precursor cells are capable of proli...

journal_title：International journal of radiation biology

authors： Haton C,Lebrun F,Benderitter M,Griffiths NM

更新日期：2005-03-01 00:00:00

abstract：:The effects of a low dose (0.1-20 mGy) preirradiation with X-rays followed by a higher dose (2 Gy) of the same radiation on the recovery of the genetic damage induced as dominant lethals in mature oocytes (stage 14) of different strains of Drosophila melanogaster were investigated. The response was shown to be depende...

journal_title：International journal of radiation biology

authors： Schäppi-Büchi C

更新日期：1994-04-01 00:00:00

abstract：PURPOSE:To evaluate and optimize the radioprotective ability of the most potent fraction of an aqueous extract of Coronopus didymus in whole body gamma-irradiated Swiss albino mice and to evaluate the antioxidant status and lipid peroxidation of the livers of the surviving mice. To correlate the free radical scavenging...

journal_title：International journal of radiation biology

authors： Prabhakar KR,Veerapur VP,Parihar KV,Priyadarsini KI,Rao BS,Unnikrishnan MK

更新日期：2006-08-01 00:00:00

abstract：:Radiation survival curves have been obtained for crypts in the small and large intestine of male BDF1 mice using the microcolony assay. Four regions of the small intestine and three regions of the large intestine were studied. One of the major objectives was to determine the optimal conditions for the microcolony assa...

journal_title：International journal of radiation biology

authors： Cai WB,Roberts SA,Bowley E,Hendry JH,Potten CS

更新日期：1997-02-01 00:00:00

abstract：:Wet heat shock (60 degrees C, 90 s) and caffeine (3.8 X 10(-4) M) afford significant radioprotection against post-irradiation O2-dependent damage which develops in seeds of approximately 3.5% moisture content. The damage was assessed in terms of seedling injury on the eighth day of growth. An increase in seedling inju...

journal_title：International journal of radiation biology

authors： Singh SP,Kesavan PC

更新日期：1991-05-01 00:00:00

abstract：:Electron transfer to 5-bromouracil (5-BrU) from nucleobase (N) electron adducts (and their protonated forms) has been studied by product analysis and pulse radiolysis. When an electron is transferred to 5-BrU, the ensuing 5-BrU radical anion rapidly loses a bromide ion; the uracilyl radical thus formed reacts with add...

journal_title：International journal of radiation biology

authors： Nese C,Yuan Z,Schuchmann MN,Von Sonntag C

更新日期：1992-11-01 00:00:00

abstract：:Cell killing and the production of DNA double-strand breaks (dsbs) were measured in parallel for V79 cells and a human tumour cell line (Caski) following exposure to radiations of differing linear energy transfer (LET) including accelerated heavy ions. Dsb induction was assessed by neutral filter elution (pH 7.4) and ...

journal_title：International journal of radiation biology

authors： Weber KJ,Flentje M

更新日期：1993-08-01 00:00:00

abstract：PURPOSE:The molecular basis of gene regulation in cells exposed to ionising radiation is not fully understood. Gene regulation occurs at the transcriptional and post-transcriptional levels. Recent studies have suggested that micro-RNA (miRNA) plays a significant role at the post-transcriptional gene regulation. miRNA a...

journal_title：International journal of radiation biology

authors： Chaudhry MA,Kreger B,Omaruddin RA

更新日期：2010-07-01 00:00:00

abstract：PURPOSE:To investigate whether pre- and post-drug magnetic field (MF) exposure of 50 Hz, 0.2 mT has any significant effect on pentylenetetrazol (PTZ)-induced seizures in mice. MATERIAL AND METHODS:MF was generated by a pair of Helmholtz coils. Seizures were induced by PTZ injection intraperitoneally (i.p.) at a dose o...

journal_title：International journal of radiation biology

authors： Canseven AG,Keskil ZA,Keskil S,Seyhan N

更新日期：2007-04-01 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：PURPOSE:To develop and validate non-fluorescent chromosome painting for bright-field microscopy using the peroxidase/diaminobenzidine (DAB) reaction. MATERIALS AND METHODS:Peripheral blood lymphocytes were taken from patients with uterine cancer who had received heavy-ion radiation therapy. Chromosome slides were trea...

journal_title：International journal of radiation biology

authors： Kanda R,Suzuki M,Minamihisamatsu M,Furukawa A,Odaka T,Hayata I

更新日期：1998-05-01 00:00:00

abstract：:This paper presents a summary of our understanding to date of the formation of DNA strand breaks induced by highly energetic particle beams (high-LET radiation). We have compared our own recent data on the formation of strand breaks induced in DNA in an aqueous solution with our previous data and those of others avail...

journal_title：International journal of radiation biology

authors： Roots R,Holley W,Chatterjee A,Irizarry M,Kraft G

更新日期：1990-07-01 00:00:00

abstract：:The in vitro cell survival of a human cervix carcinoma cell line (HX156c) has been assessed using 60Co gamma-rays administered at either high (150 cGy/min) or low (3.2 cGy/min) dose rate. Recovery during low dose-rate irradiation was observed; the dose reduction factor at 10(-2) cell kill for 150 versus 3.2 cGy/min wa...

journal_title：International journal of radiation biology

authors： Kelland LR,Steel GG

更新日期：1988-08-01 00:00:00

abstract：PURPOSE:To identify and assess, among the participants in the RENEB (Realizing the European Network of Biodosimetry) project, the emergency preparedness, response capabilities and resources that can be deployed in the event of a radiological or nuclear accident/incident affecting a large number of individuals. These ca...

journal_title：International journal of radiation biology

authors： Monteiro Gil O,Vaz P,Romm H,De Angelis C,Antunes AC,Barquinero JF,Beinke C,Bortolin E,Burbidge CI,Cucu A,Della Monaca S,Domene MM,Fattibene P,Gregoire E,Hadjidekova V,Kulka U,Lindholm C,Meschini R,M'Kacher R,Moquet

更新日期：2017-01-01 00:00:00

abstract：PURPOSE:Radiotherapy is an important treatment option for brain tumors, but the unavoidable irradiation of normal brain tissue can lead to delayed cognitive impairment. The mechanisms involved are still not well explained and, therefore, new tools to investigate the processes leading to the delayed symptoms of brain ir...

journal_title：International journal of radiation biology

authors： Parente A,Maciel ES,J O Dierckx RA,Langendijk JA,de Vries EFJ,Doorduin J

更新日期：2020-09-01 00:00:00

abstract：PURPOSE:Previous work from the authors' group and others has demonstrated that some of the effects of UV irradiation on gene expression are modulated in response to the addition of salicylic acid to irradiated cells. The presumed effector molecule responsible for this modulation is NF-kappaB. In the experiments describ...

journal_title：International journal of radiation biology

authors： Paunesku T,Chang-Liu CM,Shearin-Jones P,Watson C,Milton J,Oryhon J,Salbego D,Milosavljevic A,Woloschak GE

更新日期：2000-02-01 00:00:00

abstract：PURPOSE:To seek the delayed appearance of chromosomal abnormalities in human fibroblasts exposed to the Auger electron emitter 125I. MATERIALS AND METHODS:Normal untransformed human fibroblasts, HF19, were exposed to a concentration of [I125]IUdR, which allowed the survival of 37% of clonogens. Chromosomal analysis us...

journal_title：International journal of radiation biology

authors： Griffin CS,Neshasateh-Riz A,Mairs RJ,Wright EG,Wheldon TE

更新日期：2000-07-01 00:00:00

abstract：PURPOSE:The effect of extremely low frequency electromagnetic fields (ELF-EMF) on bacteria has attracted attention due to its potential for beneficial uses. This research aimed to determine the effect of ELF-EMF on bacterial membrane namely the membrane potential, surface potential, hydrophobicity, respiratory activity...

journal_title：International journal of radiation biology

authors： Oncul S,Cuce EM,Aksu B,Inhan Garip A

更新日期：2016-01-01 00:00:00

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：PURPOSE:To investigate the possible role of cell cycle arrest in the radiosensitization of mouse spermatogonial stem cells due to small conditioning X-ray exposures. MATERIALS AND METHODS:A 24 h fractionation interval between conditioning (1 Gy) and challenging (8 or 9 Gy) exposures was used. Two approaches were follo...

journal_title：International journal of radiation biology

authors： Van Buul PP,Van Duyn-Goedhart A,Beumer T,Bootsma AL

更新日期：2001-03-01 00:00:00

abstract：BACKGROUND:Element-specific biokinetic models are used to reconstruct doses to systemic tissues from internal emitters. Typically, a systemic model for a radionuclide explicitly depicts only its dominant repositories. Remaining tissues and fluids are aggregated into a pool called Other tissue in which the radionuclide ...

journal_title：International journal of radiation biology

authors： Leggett RW,Tolmachev SY,Boice JD Jr

更新日期：2018-12-04 00:00:00

abstract：PURPOSE:Therapy with low doses of ionising radiation (X-rays) exerts anti-inflammatory effects. Little is known about whether and how low doses of X-ray treatment modulate the inflammatory phenotype of macrophages, especially the secretion of Interleukin-1beta (IL-1β). MATERIALS AND METHODS:Macrophages were differenti...

journal_title：International journal of radiation biology

authors： Lödermann B,Wunderlich R,Frey S,Schorn C,Stangl S,Rödel F,Keilholz L,Fietkau R,Gaipl US,Frey B

更新日期：2012-10-01 00:00:00