Effect of extremely low frequency electromagnetic fields on bacterial membrane.

abstract：:It is well established from clinical, epidemiological and laboratory studies that specific human germ line mutation can predispose to spontaneously arising cancer. Some of the responsible genes have been characterized at the molecular level and evidence is rapidly accumulating on mechanistic aspects of the problem. A ...

journal_title：International journal of radiation biology

authors： Cox R

更新日期：1994-11-01 00:00:00

abstract：PURPOSE:To describe the design and dosimetric characterization of a simple and economical small animal irradiator. MATERIALS AND METHODS:A high dose rate (HDR) (192)Ir brachytherapy source from a commercially available afterloader was used with a 1.3 cm thick tungsten collimator to provide sharp beam penumbra suitable...

journal_title：International journal of radiation biology

authors： Grams MP,Wilson ZC,Sio TT,Beltran CJ,Tryggestad EJ,Gupta SK,Blackwell CR,McCollough KP,Sarkaria JN,Furutani KM

更新日期：2014-10-01 00:00:00

abstract：PURPOSE:We aimed for a quantitative evaluation that justifies guidelines for evacuation which take into consideration both the human and economic costs. To the best of our knowledge, such an evaluation has not been performed yet. The present guidelines published by the International Atomic Energy Agency (IAEA) are prob...

journal_title：International journal of radiation biology

authors： Yanovskiy M,Levi ON,Shaki YY,Socol Y

更新日期：2020-11-01 00:00:00

abstract：PURPOSE:To determine the involvement of c-Jun NH(2)-terminal kinase-1 (JNK1) and possibly of HSP27 in heat-induced apoptosis of human monoblastic leukaemia U937 cells. MATERIALS AND METHODS:Dominant negative JNK1 (APF), in which the phosphorylation sites Thr-Pro-Tyr were changed to Ala-Pro-Phe, was overexpressed in U9...

journal_title：International journal of radiation biology

authors： Enomoto A,Suzuki N,Liu C,Kang Y,Zhu J,Serizawa S,Matsumoto Y,Morita A,Ito M,Hosoi Y

更新日期：2001-08-01 00:00:00

abstract：PURPOSE:To investigate the possible role of vitamin E, coenzyme Q10 and rutin in ameliorating the biochemical changes in brain and serum induced by cerebral ischemia/reperfusion (I/R) in whole body γ-irradiated rats. MATERIALS AND METHODS:Cerebral ischemia was induced in male Wistar rats (either irradiated or non-irra...

journal_title：International journal of radiation biology

authors： Abd-El-Fattah AA,El-Sawalhi MM,Rashed ER,El-Ghazaly MA

更新日期：2010-12-01 00:00:00

abstract：PURPOSE:Radiotherapy of cancer carries a perceived risk of inducing secondary cancer and other damage due to dose delivered to normal tissue. While expectedly small, this risk must be carefully analysed for all modalities. Especially in the use of exotic particles like pions and antiprotons, which annihilate and produc...

journal_title：International journal of radiation biology

authors： Kovacevic S,Bassler N,Hartley O,Knudsen H,Vranjes S,Garaj-Vrhovac V,Holzscheiter M

更新日期：2009-12-01 00:00:00

abstract：:Mouse C3H 10T1/2 cells are most sensitive to radiation-induced neoplastic transformation in the G2/M-phase of the cell cycle. When synchronized 10T1/2 cells were exposed to phorbol 12-myristate 13-acetate (TPA) after irradiation, transformation of cells not in the transformation-sensitive window was enhanced, but tran...

journal_title：International journal of radiation biology

authors： Wells RL,Cao J,Xing Y,He L,Elkind MM

更新日期：1993-12-01 00:00:00

abstract：PURPOSE:This review will examine the role of phosphatases in cancer cell signalling and also outline emerging findings regarding the influence of phosphatases on tumor cell survival after ionising radiation. CONCLUSION:The exposure of tumour cells to clinically relevant doses of ionising radiation causes DNA damage an...

journal_title：International journal of radiation biology

authors： Hamilton J,Bernhard EJ

更新日期：2009-11-01 00:00:00

abstract：PURPOSE:To examine whether the levels of micronuclei induction, as a marker for genomic instability in the progeny of X-irradiated cells, correlates with DNA repair function. MATERIALS AND METHODS:Two repair deficient cell lines (X-ray repair cross-complementing 1 [XRCC1] deficient cell line [EM9] and X-ray repair cro...

journal_title：International journal of radiation biology

authors： Kashino G,Suzuki K,Kodama S,Watanabe M,Prise KM

更新日期：2013-04-01 00:00:00

abstract：PURPOSE:Solar energy has a number of short- and long-term detrimental effects on skin that can result in several skin disorders. The aim of this review is to summarise current knowledge on endogenous systems within the skin for protection from solar radiation and present research findings to date, on the exogenous opti...

journal_title：International journal of radiation biology

authors： Svobodová A,Vostálová J

更新日期：2010-12-01 00:00:00

abstract：:Purpose: The key to increasing our understanding of low dose effects of ionizing radiation is cooperation and communication between research organizations around the world. The purpose of this article is to describe the Electric Power Research Institute (EPRI) program for such cooperation. Materials and methods: EPRI ...

journal_title：International journal of radiation biology

authors： Cool DA

更新日期：2019-10-01 00:00:00

abstract：:The repair activity of verbascoside (VER), isolated from Pedicularis spicata, towards the oxidizing hydroxyl radical adduct of dGMP and its reaction mechanism were studied using pulse radiolysis. Upon pulse radiolysis of nitrous oxide saturated aqueous solution of 2'-deoxyguanosine-5'-monophosphate (dGMP) and VER, it ...

journal_title：International journal of radiation biology

authors： Li W,Zheng R,Su B,Jia Z,Li H,Jiang Y,Yao S,Lin N

更新日期：1996-04-01 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: Dose assessment plays an important role in case of radiological accidents and can be performed by scoring structural changes of chromosome morphology induced in cells by ionizing radiation. The results of such a test are biased by scorer experience, therefore, simple to learn assays are recommended to be used...

journal_title：International journal of radiation biology

authors： Gałecki M,Tartas A,Szymanek A,Sims E,Lundholm L,Sollazzo A,Cheng L,Fujishima Y,Yoshida MA,Żygierewicz J,Wojcik A,Brzozowska-Wardecka B

更新日期：2019-09-01 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 honour perhaps the most influential man in the radiation sciences, Henry S. Kaplan, by reviewing the field of tumour hypoxia, one of his many interests. RESULTS:It was postulated over 50 years ago by Thomlinson and Gray that human solid tumours would contain hypoxic cells and that they would exert a negativ...

journal_title：International journal of radiation biology

authors： Brown M

更新日期：2010-11-01 00:00:00

abstract：PURPOSE:Theoretical modelling techniques are often used to simulate the action of ionizing radiations on cells at the nanometre level. Using monoenergetic vacuum-UV (VUV) radiation to irradiate DNA either dry or humidified, the action spectra for the induction of DNA damage by low energy photons and the role of water a...

journal_title：International journal of radiation biology

authors： Folkard M,Prise KM,Vojnovic B,Brocklehurst B,Michael BD

更新日期：2000-06-01 00:00:00

abstract：PURPOSE:DNA damage is one of the main consequences of exposure to ionizing irradiation (IR). Recent studies indicate that IR can modulate the expression of immune system-related genes. However, the effects of IR on the expression of genes and pathways of the B7-CD28 superfamily remain poorly defined. The aim of this st...

journal_title：International journal of radiation biology

authors： Silveira DA,Ribeiro FM,Simão ÉM,Mattos VLD,Góes EG

更新日期：2020-12-17 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 investigate the ability of electromagnetic (EM) field pre-exposures to induce protection in chick embryos against subsequent ultraviolet (UV) light exposure. MATERIALS AND METHOD:Chick embryos in the 4th day of gestation were exposed for 20 minutes (short term) or 96 hours (long term) to 60 Hz, 8 microT mag...

journal_title：International journal of radiation biology

authors： Dicarlo AL,Hargis MT,Penafiel LM,Litovitz TA

更新日期：1999-12-01 00:00:00

abstract：:Despite the extensive utilization of radiotherapy in cancer treatments, clinicians often face challenges in achieving desired outcomes. This is because of the existence of secondary radiation effects like bystander phenomenon that influence radiation nontargeted cells and tissues. The concept of bystander effects of r...

journal_title：International journal of radiation biology

authors： Mukherjee S,Chakraborty A

更新日期：2019-03-01 00:00:00

abstract：PURPOSE:The relationship between cellular telephone use and excretion of the melatonin metabolite 6-hydroxymelatonin sulfate (6-OHMS) was evaluated in two populations of male electric utility workers (Study 1, n=149; Study 2, n=77). MATERIALS AND METHODS:Participants collected urine samples and recorded cellular telep...

journal_title：International journal of radiation biology

authors： Burch JB,Reif JS,Noonan CW,Ichinose T,Bachand AM,Koleber TL,Yost MG

更新日期：2002-11-01 00:00:00

abstract：PURPOSE:To summarize current knowledge regarding mechanisms of radiation-induced skin injury and medical countermeasures available to reduce its severity. Advances in radiation delivery using megavoltage and intensity modulated radiation therapy have permitted delivery of higher doses of radiation to well-defined tumor...

journal_title：International journal of radiation biology

authors： Kim JH,Kolozsvary AJ,Jenrow KA,Brown SL

更新日期：2013-05-01 00:00:00

abstract：:The radiation response of 15 mammalian cell lines comprising 11 human tumour, two human fibroblast and two murine lymphoma cell lines, has been analysed using the linear-quadratic equation. As well as using conventional analysis of acute dose-survival curves to derive values for alpha and beta (termed alpha ac and bet...

journal_title：International journal of radiation biology

authors： Peacock JH,Eady JJ,Edwards SM,McMillan TJ,Steel GG

更新日期：1992-04-01 00:00:00

abstract：PURPOSE:Many studies have shown that exposure to radiofrequency radiation (RFR) could activate cellular signal transduction pathways. In the present research, we investigated the effects of exposure to a 1.8-GHz RFR at different intensities on epidermal growth factor (EGF) receptor clustering and phosphorylation in hum...

journal_title：International journal of radiation biology

authors： Sun W,Shen X,Lu D,Fu Y,Lu D,Chiang H

更新日期：2012-03-01 00:00:00

abstract：PURPOSE:The aim of this research was to demonstrate the effects of 50 Hz sinusoidal extremely low frequency of magnetic fields (ELF-MF) on preincubated chicken embryo hearts at histopathological, biochemical, and ultrastructural levels. MATERIALS AND METHODS:Ninety healthy fertilized eggs were divided into six groups ...

journal_title：International journal of radiation biology

authors： Shams Lahijani M,Tehrani DM,Fereydouni N

更新日期：2013-04-01 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:The tandemly repeated hexamers (TTAGGG)n present at the telomeric ends protect the human genome from a variety of environmental exposures including ionizing radiation. In order to find out the effect of chronic low dose radiation exposure, we have determined telomere length among newborns from high level natura...

journal_title：International journal of radiation biology

authors： Das B,Saini D,Seshadri M

更新日期：2012-09-01 00:00:00

abstract：PURPOSE:To understand the mechanisms of life-shortening due to early neoplastic death caused by chronic low dose-rate (LDR; 20 mGy/22 h/day) radiation which accumulates to a high dose (HD; 8 Gy) (LDR/HD) as reported previously. MATERIALS AND METHODS:Female B6C3F(1) mice were continuously exposed to LDR/HD gamma-rays u...

journal_title：International journal of radiation biology

authors： Takai D,Todate A,Yanai T,Ichinohe K,Oghiso Y

更新日期：2011-07-01 00:00:00

abstract：PURPOSE:To resolve the difficulty in counting merged DNA damage foci in high-LET (linear energy transfer) ion-induced patterns. MATERIALS AND METHODS:The analysis of patterns of RIF (radiation-induced foci) produced by high-LET Fe and Ti ions were conducted by using a Monte Carlo model that combines the heavy ion trac...

journal_title：International journal of radiation biology

authors： Ponomarev AL,Huff J,Cucinotta FA

更新日期：2010-06-01 00:00:00