Empirical evaluation of global vitamin D effective ultraviolet irradiances under cloudy conditions for a subtropical southern hemisphere site.

abstract：:The goal of this study was to make a comparison between stereotactic brachytherapy implants and linear accelerator-based radiosurgery of brain tumors with respect to physical dose distributions and radiobiological efficacy. Twenty-four treatment plans made for irradiation of brain tumors with low-dose-rate (125)I brac...

journal_title：Radiation research

authors： Viola A,Major T,Julow J

更新日期：2006-06-01 00:00:00

abstract：:The major limitation to reaching a curative radiation dose in radioresistant tumors such as malignant gliomas is the high sensitivity to radiation and subsequent damage of the surrounding normal tissues. Novel dose delivery methods such as minibeam radiation therapy (MBRT) may help to overcome this limitation. MBRT ut...

journal_title：Radiation research

authors： Prezado Y,Deman P,Varlet P,Jouvion G,Gil S,Le Clec'H C,Bernard H,Le Duc G,Sarun S

更新日期：2015-09-01 00:00:00

abstract：:Although conclusive evidence has been obtained for the presence of radiation-induced bystander effects, the mechanisms that trigger and regulate these processes are still largely unknown. The bystander effect may play a critical role in determining the biological effectiveness of low-dose exposures, but questions on h...

journal_title：Radiation research

authors： Schettino G,Folkard M,Michael BD,Prise KM

更新日期：2005-03-01 00:00:00

abstract：:Takagaki, M., Ono, K., Masunaga, S-I., Kinashi, Y., Oda, Y., Miyatake, S-I., Hashimoto, N., Powell, W., Sood, A. and Spielvogel, B. F. Boronated Dipeptide Borotrimethylglycylphenylalanine as a Potential Boron Carrier in Boron Neutron Capture Therapy for Malignant Brain Tumors. Radiat. Res. 156, 118-122 (2001).A borona...

journal_title：Radiation research

authors： Takagaki M,Powell W,Sood A,Spielvogel BF,Hosmane NS,Kirihata M,Ono K,Masunaga SI,Kinashi Y,Miyatake SI,Hashimoto N

更新日期：2001-07-01 00:00:00

abstract：:Groups of rats were administered different doses of X rays (7.5 and 15 Gy), and the effect on the permeability of their lungs was evaluated during a time frame within which radiation pneumonitis develops. Sham-exposed animals served as controls. End points surveyed included lung weight and increases in the total prote...

journal_title：Radiation research

authors： Gurley LR,London JE,Tietjen GL,van der Kogel AJ,Dethloff LA,Lehnert BE

更新日期：1993-05-01 00:00:00

abstract：:Rat females were exposed to a single 4.0-Gy gamma-ray dose and treated postradiation with a mixture of ATP-AET-mexamine at daily doses of 24, 12, and 3 mg/kg body wt, respectively, in drinking water throughout the period of their survival. With the radiation dose used, life shortening appeared primarily attributable t...

journal_title：Radiation research

authors： Benova DK,Kiradzhiev GD,Troitskaya MN,Anisimov VN

更新日期：1985-01-01 00:00:00

abstract：:The anoxic sensitization of bacterial spores by added H2O2 has been studied. Two mechanistic pathways for damage from H2O2 were found; one of these requires the presence of OH radicals. For this kind of damage, the relationship between H2O2 and OH appears to be that they are reactants. O-2 (and/or HO2), the product of...

journal_title：Radiation research

authors： Ewing D

更新日期：1983-04-01 00:00:00

abstract：:A nested case-control study was conducted among workers at five U.S. nuclear facilities to evaluate leukemia mortality risk (excluding chronic lymphocytic) from ionizing radiation using worksite doses and adjusting for potential confounding. Conditional logistic regression was used to estimate the relative risk (RR) o...

journal_title：Radiation research

authors： Schubauer-Berigan MK,Daniels RD,Fleming DA,Markey AM,Couch JR,Ahrenholz SH,Burphy JS,Anderson JL,Tseng CY

更新日期：2007-02-01 00:00:00

abstract：:The cellular sites for damage in mammalian cells caused by 193-nm radiation from an argon fluoride excimer laser were investigated. The ability of Chinese hamster ovary cells to reduce a tetrazolium dye (MTT) was decreased to 37% of unirradiated control by 2.5 x 10(3) J/m2 of 193-nm radiation when measured either 4 or...

journal_title：Radiation research

authors： Kochevar IE,Walsh AA,Held KD,Gallo RL,Mirro J

更新日期：1990-05-01 00:00:00

abstract：:We demonstrate by western analysis that the expression levels of TP53 (formerly known as p53), CDKN1A (formerly known as p21Waf1), CDC2 (formerly known as p34cdc2), CCNB1 (cyclin B1) and RAD51 are significantly modulated in confluent, density-inhibited human diploid cell populations exposed to doses where only a small...

journal_title：Radiation research

authors： Azzam EI,de Toledo SM,Gooding T,Little JB

更新日期：1998-11-01 00:00:00

abstract：:Radiation therapy for the treatment of thoracic cancers may be associated with radiation-induced heart disease (RIHD), especially in long-term cancer survivors. Mechanisms by which radiation causes heart disease are largely unknown. To identify potential long-term contributions of mitochondria in the development of ra...

journal_title：Radiation research

authors： Sridharan V,Aykin-Burns N,Tripathi P,Krager KJ,Sharma SK,Moros EG,Corry PM,Nowak G,Hauer-Jensen M,Boerma M

更新日期：2014-03-01 00:00:00

abstract：:The effects of 60Co gamma rays on calcitonin gene-related peptide (CGRP)-immunoreactive nerve fibers and neuropeptide Y (NPY)-immunoreactive nerve fibers were examined in mesenteric blood vessels of rats. Using a free-floating immunostaining streptavidin-biotin peroxidase complex method combined with a nickel-enhancem...

journal_title：Radiation research

authors： Zhang CG,Cai WQ,Li Y,Huang WQ,Su HC

更新日期：1998-01-01 00:00:00

abstract：:Activation of the transcription factor nuclear factor-kappaB (NF-kappaB) is one of the important responses of cells to an external stress such as ionizing radiation. We studied radiation-induced NF-kappaB activation in vivo in male BALB/c mice. After the mice were exposed to 8.5 Gy total-body gamma irradiation, the sp...

journal_title：Radiation research

authors： Zhou D,Brown SA,Yu T,Chen G,Barve S,Kang BC,Thompson JS

更新日期：1999-06-01 00:00:00

abstract：:Human T lymphocytes can be used to determine the frequency and molecular spectrum of somatic cell gene mutations induced by ionizing radiations both in vivo and in vitro. In vitro exposure of these G0 cells to low-LET 137Cs gamma rays results in the induction of HPRT mutations and a predominant molecular spectrum of D...

journal_title：Radiation research

authors： Albertini RJ,Clark LS,Nicklas JA,O'Neill JP,Hui TE,Jostes R

更新日期：1997-11-01 00:00:00

abstract：:Radiation exposure from a number of terrestrial sources is associated with an increased risk for atherosclerosis. Recently, concern over whether exposure to cosmic radiation might pose a similar risk for astronauts has increased. To address this question, we examined the effect of 2 to 5 Gy iron ions ((56)Fe), a parti...

journal_title：Radiation research

authors： Yu T,Parks BW,Yu S,Srivastava R,Gupta K,Wu X,Khaled S,Chang PY,Kabarowski JH,Kucik DF

更新日期：2011-06-01 00:00:00

abstract：:The induction of thymic lymphomas by whole-body X irradiation with four doses of 1.8 Gy (total dose: 7.2 Gy) in C57BL/6 mice was suppressed from a high frequency (90%) to 63% by preirradiation with 0.075 Gy X rays given 6 h before each 1.8-Gy irradiation. This level was further suppressed to 43% by continuous whole-bo...

journal_title：Radiation research

authors： Ina Y,Tanooka H,Yamada T,Sakai K

更新日期：2005-02-01 00:00:00

abstract：:A novel technique has been employed to investigate the simultaneous damage to DNA components induced by soft X rays (1.5 keV) and low-energy electrons (0-30 eV) in thin films of thymidine deposited on glass and tantalum substrates and irradiated under atmospheric pressure and temperature. The films were surrounded by ...

journal_title：Radiation research

authors： Alizadeh E,Sanz AG,Madugundu GS,García G,Wagner JR,Sanche L

更新日期：2014-06-01 00:00:00

abstract：:The percentage of T lymphocytes of atomic bomb survivors showed no change as a function of age or exposure dose. The percentage of T cells was slightly lower in malignant-tumor patients than in the control group, but was significantly higher in the group with chromosomal aberrations than in the control group. The perc...

journal_title：Radiation research

authors： Akiyama M,Yamakido M,Kobuke K,Dock DS,Hamilton HB,Awa AA,Kato H

更新日期：1983-03-01 00:00:00

abstract：:Ionizing radiation induces bistranded clustered damages--two or more abasic sites, oxidized bases and strand breaks on opposite DNA strands within a few helical turns. Since clusters are refractory to repair and are potential sources of double-strand breaks (DSBs), they are potentially lethal and mutagenic. Although i...

journal_title：Radiation research

authors： Hada M,Sutherland BM

更新日期：2006-02-01 00:00:00

abstract：:Radiation of the esophagus of C3H/HeNsd mice with 35 or 37 Gy of 6 MV X rays induces significantly increased RNA transcription for interleukin 1 (Il1), tumor necrosis factor alpha (Tnf), interferon gamma inducing factor (Ifngr), and interferon gamma (Ifng). These elevations are associated with DNA damage that is detec...

journal_title：Radiation research

authors： Epperly MW,Gretton JA,DeFilippi SJ,Greenberger JS,Sikora CA,Liggitt D,Koe G

更新日期：2001-01-01 00:00:00

abstract：:An in vitro assay was used to assess cell killing and induction of neoplastic transformation in C3H 10T1/2 cells exposed to X rays and a range of monoenergetic neutrons administered at various dose rates. Curves for cell survival and induction of neoplastic transformation showed nonlinearity for cells exposed to acute...

journal_title：Radiation research

authors： Miller RC,Hall EJ

更新日期：1991-10-01 00:00:00

abstract：:We have monitored the end points of cellular survival, micronucleus formation and neoplastic transformation frequency to assess adaptation to ionizing radiation in the C3H 10T1/2 mouse embryo cell system. Plateau-phase cells were pre-exposed to an adapting dose of 0.1 to 1.5 Gy low-dose-rate gamma radiation 3.5 h prio...

journal_title：Radiation research

authors： Azzam EI,Raaphorst GP,Mitchel RE

更新日期：1994-04-01 00:00:00

abstract：:The hyperthermic inhibition of cellular DNA synthesis, i.e., reduction in replicon initiation and delay in DNA chain elongation, was previously postulated to be involved in the induction of chromosomal aberrations believed to be largely responsible for killing S-phase cells. Utilizing asynchronous Chinese hamster ovar...

journal_title：Radiation research

authors： Wong RS,Thompson LL,Dewey WC

更新日期：1988-04-01 00:00:00

abstract：:An analysis was conducted of 27,982 deaths among 106,020 persons employed at four Federal nuclear plants in Oak Ridge, Tennessee, between 1943 and 1985. The main objectives were to extend the evaluation of the health effects of employment in the nuclear industry in Oak Ridge to include most workers who were omitted fr...

journal_title：Radiation research

authors： Frome EL,Cragle DL,Watkins JP,Wing S,Shy CM,Tankersley WG,West CM

更新日期：1997-07-01 00:00:00

abstract：:Based on encouraging results from several early-phase clinical trials, there is renewed interest in the use of pharmacological ascorbate (i.e., intravenous administration resulting in >≈10 mM plasma ascorbate concentrations) in combination with standard-of-care cancer treatments including radiation and/or chemotherapy...

journal_title：Radiation research

authors： Petronek MS,Wagner BA,Hollenbeck NJ,Caster JM,Spitz DR,Cullen JJ,Buettner GR,Allen BG

更新日期：2019-06-01 00:00:00

abstract：:Damage to intestine is a serious problem after accidental radiation exposure. To examine substances to ameliorate damage by postirradiation administration, we focused on the regeneration process after irradiation of the intestine. Using experimental systems, the effects of clinically used sex hormones on regeneration ...

journal_title：Radiation research

authors： Ishihara H,Tanaka I,Yakumaru H,Tanaka M,Satoh A,Ishiwata A,Yokochi K,Kurematsu A,Ueda J,Shibata T,Hachiya M,Akashi M

更新日期：2011-03-01 00:00:00

abstract：:Neither cell division nor growth of Saccharomyces cerevisiae were stimulated by the ultraviolet luminescence produced by adjacent exponential phase cultures of the yeast. The study included experiments in which the inocula (density = 5 X 10(7) cells cm-3) were irradiated and in which lag phase cultures (densities = 1 ...

journal_title：Radiation research

authors： Quickenden TI,Tilbury RN

更新日期：1985-05-01 00:00:00

abstract：:Vascular injury after radiation exposure contributes to multiple types of tissue injury through a cascade of events. Some of the earliest consequences of radiation damage include increased vascular permeability and promotion of inflammation, which is partially manifested by increased leukocyte-endothelial (L/E) intera...

journal_title：Radiation research

authors： Ashcraft KA,Choudhury KR,Birer SR,Hendargo HC,Patel P,Eichenbaum G,Dewhirst MW

更新日期：2018-07-01 00:00:00

abstract：:The objective of this study was to determine whether a deficiency for either one of two repair processes influences the phenomenon of enhancement of radiation-induced cell killing by carboplatin which has been reported previously in one cell line (V79) and which is presumably a result of an interaction between these t...

journal_title：Radiation research

authors： Yang L,Douple EB,O'Hara JA,Crabtree RA,Eastman A

更新日期：1995-11-01 00:00:00

abstract：:The effects of reoxygenation on repair of potentially lethal radiation damage were investigated using MG-63 human osteosarcoma cells in vitro. When exponentially growing MG-63 cells were cultured under hypoxic conditions for 24 h, cells stopped growing and remained at a low density. The hypoxic cells were then reoxyge...

journal_title：Radiation research

authors： Iizuka M,Ando K,Aruga T,Furusawa Y,Itsukaichi H,Fukutsu K,Nagasawa H,Moriya H

更新日期：1997-02-01 00:00:00