Radiation chemical studies on thermosensitive N-isopropylacrylamide and its polymer in aqueous solutions.

abstract：:To assess the mutational effects of radiation on vigorously proliferating plant tissue, the mutation spectrum was analyzed with Arabidopsis seedlings using the plasmid-rescue method. Transgenic plants containing the Escherichia coli rpsL gene were irradiated with γ-rays and carbon ion beams (320-MeV (12)C(6+)), and mu...

journal_title：Journal of radiation research

authors： Yoshihara R,Nozawa S,Hase Y,Narumi I,Hidema J,Sakamoto AN

更新日期：2013-11-01 00:00:00

abstract：:The brachytherapy dose calculations used in treatment planning systems (TPSs) have conventionally been performed assuming homogeneous water. Using measurements and a Monte Carlo simulation, we evaluated the dosimetric impact of an air passage on brachytherapy for bronchus cancer. To obtain the geometrical characterist...

journal_title：Journal of radiation research

authors： Okamoto H,Wakita A,Nakamura S,Nishioka S,Aikawa A,Kato T,Abe Y,Kobayashi K,Inaba K,Murakami N,Itami J

更新日期：2016-11-01 00:00:00

abstract：:The International Space Environment Service (ISES) is an international organization for space weather forecasts and belongs to the International Union of Radio Science (URSI). There are eleven ISES forecast centers in the world, and Communications Research Laboratory (CRL) runs the Japanese one. We make forecasts on t...

journal_title：Journal of radiation research

authors： Watari S,Tomita F

更新日期：2002-12-01 00:00:00

abstract：:The radiation killing of tumor cells by ionizing radiation is best described by the linear-quadratic (LQ) model. Research into the underlying mechanisms of α- and β-inactivation has suggested that different molecular targets (DNA in different forms) and different microdosimetric energy deposits (spurs versus electron ...

journal_title：Journal of radiation research

authors： Chapman JD

更新日期：2014-01-01 00:00:00

abstract：:Halobacterium salinarium, a member of the extremely halophilic archaebacteria, contains a C50-carotenoid namely bacterioruberin. We have previously reported the high resistance of this organism against the lethal actions of DNA-damaging agents including ionizing radiation and ultraviolet light (UV). In this study, we ...

journal_title：Journal of radiation research

authors： Shahmohammadi HR,Asgarani E,Terato H,Saito T,Ohyama Y,Gekko K,Yamamoto O,Ide H

更新日期：1998-12-01 00:00:00

abstract：:The direct biological effects of radiation, particularly accelerated heavy particle ions, on neurons are not fully known. Hence, the direct effect of carbon-ion beams on immature neurons was investigated by comparing to the effect of X-rays in vitro using primary hippocampal neurons. Primary neurons were prepared from...

journal_title：Journal of radiation research

authors： Kaminuma T,Suzuki Y,Shirai K,Mizui T,Noda SE,Yoshida Y,Funayama T,Takahashi T,Kobayashi Y,Shirao T,Nakano T

更新日期：2010-01-01 00:00:00

abstract：:Pericardial effusion is an important late toxicity after concurrent chemoradiotherapy (CCRT) for locally advanced esophageal cancer. We investigated the clinical and dosimetric factors that were related to pericardial effusion among patients with thoracic esophageal cancer who were treated with definitive CCRT using t...

journal_title：Journal of radiation research

authors： Takata N,Kataoka M,Hamamoto Y,Tsuruoka S,Kanzaki H,Uwatsu K,Nagasaki K,Mochizuki T

更新日期：2018-05-01 00:00:00

abstract：:Low doses (2.5-15 cGy) of X-irradiation two months prior to a second exposure to a sublethal dose enhanced the survival rate in mice. Optimal and significant increase was observed with 5-10 cGy. Endogenous spleen colony counts (endo-CFUs) after 7 Gy increased by a factor of about 1.7 in mice pre-irradiated with 5-10 c...

journal_title：Journal of radiation research

authors： Yonezawa M,Takeda A,Misonoh J

更新日期：1990-09-01 00:00:00

abstract：:The aim of the present study was to examine the excess relative risk for leukemia mortality and all cancers, except leukemia, among Hiroshima atomic-bomb survivors by applying ABS93D and ABS2000D. Particular attention was given to any difference in the neutron-dose estimates between the two dosimetry systems. The stud...

journal_title：Journal of radiation research

authors： Katayama H,Matsuura M,Endo S,Hoshi M,Ohtaki M,Hayakawa N

更新日期：2002-03-01 00:00:00

abstract：:To investigate the importance of gender and aging on the individual radiosensitivity of lineage-committed myeloid hematopoietic stem/progenitor cells (HSPCs) detected in mononuclear cells (MNCs) of steady-state human peripheral blood (PB), the clonogenic survival of HPCs, including colony-forming unit-granulocyte macr...

journal_title：Journal of radiation research

authors： Kato K,Kuwabara M,Kashiwakura I

更新日期：2011-01-01 00:00:00

abstract：:It has previously been demonstrated that the presence of fetal bovine serum is necessary for TGF-β3 (transforming growth factor beta 3)-dependent elimination of low-dose hyper-radiosensitivity (HRS) in cells by 1 h of low-dose-rate γ-irradiation (0.2-0.3 Gy/h). The purpose of the present study was to identify the seru...

journal_title：Journal of radiation research

authors： Edin NF

更新日期：2014-11-01 00:00:00

abstract：:To evaluate the lifetime hazards of ionizing radiation exposure, 1680 beagles received whole-body, 60-Cobalt gamma exposures or sham-exposures during development. Eight groups of 120 dogs each received mean doses of 16 or 83 cGy at 8 (preimplantation), 28 (embryonic), or 55 (late fetal) days postcoitus (dpc), or 2 (ne...

journal_title：Journal of radiation research

authors： Benjamin SA,Saunders WJ,Angleton GM,Lee AC

更新日期：1991-12-01 00:00:00

abstract：:Radiotherapy-induced toxicity is a major dose-limiting factor in anti-cancer treatment. Ionizing radiation leads to the formation of reactive oxygen and nitrogen species (ROS/RNS) that are associated with radiation-induced cell death. Investigations of biological effects of fullerenol have provided evidence for its RO...

journal_title：Journal of radiation research

authors： Bogdanović V,Stankov K,Icević I,Zikic D,Nikolić A,Solajić S,Djordjević A,Bogdanović G

更新日期：2008-05-01 00:00:00

abstract：:To determine the possible effect of hypergravity to modify the signal transduction of ionizing radiation, we analyzed the accumulation of p53 and the expression of p53-dependent genes, Waf-1 and Bax, using the western blot analysis. Hypergravity (20 x g) induced the accumulation of p53 in the human glioblastoma cell l...

journal_title：Journal of radiation research

authors： Okaichi K,Usui A,Ohnishi T,Okumura Y

更新日期：2002-12-01 00:00:00

abstract：:This study aimed to clarify the motivations and timing of the decision to become radiation oncologists. MATERIALS AND METHODS:We conducted an online survey for new members of the Japanese Society for Radiation Oncology (JASTRO). RESULTS:The response rate was 43.3%. Data of the 79 respondents who wanted to obtain a b...

journal_title：Journal of radiation research

authors： Murakami Y,Noda SE,Hatayama Y,Maebayashi T,Jingu K,Nagata Y,Mizowaki T

更新日期：2020-09-08 00:00:00

abstract：:The purpose of this study was to analyze the clinical outcomes of simultaneous modulated accelerated radiotherapy (SMART) in patients with nasopharyngeal carcinoma (NPC). A total of 97 patients who underwent SMART for NPC between August 2005 and November 2011 were evaluated. The prescribed dose was 69.9 Gy/30 fraction...

journal_title：Journal of radiation research

authors： Tang JM,Ma XM,Hou YL,Dai LY,Cao HB,Ye M,Bai YR

更新日期：2014-07-01 00:00:00

abstract：:We have examined the neutron energy dependency of cell killing and mutation induction at the hprt locus in Chinese hamster V79 cells. Monoenergetic neutrons at 0.32, 0.57, and 1.2 MeV were generated at the Hiroshima University Radiobiological Research Accelerator (HIRRAC) Facility, and were used to irradiate cells. Th...

journal_title：Journal of radiation research

authors： Kubota N,Okada S,Nagatomo S,Ozawa F,Inada T,Hill CK,Endo S,Komatsu K

更新日期：1999-12-01 00:00:00

abstract：:Resveratrol has received considerable attention as a polyphenol with anti-oxidant, anti-carcinogenic, and anti-inflammatory effects. Radiation is an important component of therapy for a wide range of malignant conditions. However, it causes damage to normal cells and, hence, can result in adverse side effects. This st...

journal_title：Journal of radiation research

authors： Jeong MH,Yang KM,Jeong DH,Lee CG,Oh SJ,Jeong SK,Lee KW,Jo YR,Jo WS

更新日期：2014-05-01 00:00:00

abstract：:This study evaluated the effective dose of Ga-67 for a patient undergoing Ga-67 citrate nuclear examination by applying thermoluminescent dosimeter (TLD) technique and an indigenous water phantom. The Ga-67 radionuclide remaining in the body inevitably generated a measurable internal dose even though gamma camera scan...

journal_title：Journal of radiation research

authors： Chu KH,Lin YT,Hsu CC,Chen CY,Pan LK

更新日期：2012-11-01 00:00:00

abstract：:A biological dosimetry system for measuring solar UV-B light was established using bacteriophage T1 with E. coli Bs-1 as the host cell. Also a new physical UV-B dosimeter was developed which can specifically detect the UV spectral region related to inactivation of phage T1. Phage T1 is very stable in liquid suspension...

journal_title：Journal of radiation research

authors： Furusawa Y,Suzuki K,Sasaki M

更新日期：1990-06-01 00:00:00

abstract：:The purpose of this review was to evaluate the impact of epidermal growth factor receptor (EGFR) mutation status on disease recurrence in patients treated with chemoradiotherapy (CRT) for locally advanced non-small cell lung cancer (NSCLC). A literature search was conducted and a total of three studies were analyzed. ...

journal_title：Journal of radiation research

authors： Ochiai S,Nomoto Y,Watanabe Y,Yamashita Y,Toyomasu Y,Kawamura T,Takada A,Noriko,Sakuma H

更新日期：2016-09-01 00:00:00

abstract：:A number of agents are now available for use in protecting against ionizing radiation. These radiation-protective agents, however, have many adverse effects. Efforts have been made to develop new radiation-protective agents for medical application. Here, we investigated whether a compound, polyethylenimine (PEI), whic...

journal_title：Journal of radiation research

authors： Hu Z,Xing Y,Qian Y,Chen X,Tu J,Ren L,Wang K,Chen Z

更新日期：2013-03-01 00:00:00

abstract：:The aim of this study is to demonstrate the feasibility of estimating the strength of the moving radiation source during patient implantation. The requirement for the counting time was investigated by comparing the results of the measurements for the static source with those for the source moving at 2, 5, 10 and 20 cm...

journal_title：Journal of radiation research

authors： Tanaka K,Endo S,Tateoka K,Asanuma O,Kamo K,Sato K,Takeda H,Takagi M,Hareyama M,Takada J

更新日期：2014-01-01 00:00:00

abstract：:The aim of the study was to investigate the various effects of high linear energy transfer (LET) carbon ion (12C6+) and low LET X-ray radiation on MDA-MB-231 and MCF-7 human breast cancer cells and to explore the underlying mechanisms of radiation sensitivity. Cell proliferation, cell colony formation, cell cycle dist...

journal_title：Journal of radiation research

authors： Zhang Q,Kong Y,Yang Z,Liu Y,Liu R,Geng Y,Luo H,Zhang H,Li H,Feng S,Wang X

更新日期：2020-05-22 00:00:00

abstract：:Exposure to ionizing radiation leads to severe damages in radiosensitive organs and induces acute radiation syndrome, including effects on the hematopoietic system and gastrointestinal system. In this study, the radioprotective ability of KMRC011, a novel toll-like receptor 5 (TLR5) agonist, was investigated in C57BL6...

journal_title：Journal of radiation research

authors： Kim JY,Park JH,Seo SM,Park JI,Jeon HY,Lee HK,Yoo RJ,Lee YJ,Woo SK,Lee WJ,Choi CM,Choi YK

更新日期：2019-07-01 00:00:00

abstract：:To understand the biological response of normal cells to fractionated carbon beam irradiation, the effects of potentially lethal damage repair (PLDR) and sublethal damage repair (SLDR) were both taken into account in a linear-quadratic (LQ) model. The model was verified by the results of a fractionated cell survival e...

journal_title：Journal of radiation research

authors： Wada M,Suzuki M,Liu C,Kaneko Y,Fukuda S,Ando K,Matsufuji N

更新日期：2013-09-01 00:00:00

abstract：:Direct irradiation may cause malfunctioning of cardiac implantable electronic devices (CIEDs). Therefore, a treatment plan that does not involve direct irradiation of CIEDs should be formulated. However, CIEDs may be directly exposed to radiation because of the sudden intrafractional movement of the patient. The proba...

journal_title：Journal of radiation research

authors： Nakamura K,Aoyama T,Kaneda N,Otsuji M,Minami Y,Sakuragi A,Nakamura M

更新日期：2020-05-22 00:00:00

abstract：:Thyroid cells were given 5.5 Gy X-rays in situ and transplanted after 1 day or after 6 weeks to form colonies in fat pads. The colony-forming efficiency unexpectedly decreased by a factor of about 2 with this increase in delay time before transplantation. In addition, there was a concomitant marked increase above the ...

journal_title：Journal of radiation research

authors： Watanabe H,Hendry JH

更新日期：1994-06-01 00:00:00

abstract：:Tumor hypoxia and angiogenesis have been studied extensively. However, the relation between normal tissue injury and hypoxia is still unclear. In this study, we investigated the effect of hypoxia on radiation-induced late rectal injury in mice. The rectum of C57BL/6N mice was irradiated locally with a single dose of 2...

journal_title：Journal of radiation research

authors： Liu Y,Kudo K,Abe Y,Aoki M,Hu DL,Kijima H,Nakane A

更新日期：2008-05-01 00:00:00

abstract：:3D image-guided brachytherapy (3D-IGBT) has become a standard therapy for cervical cancer. However, the use of 3D-IGBT is limited in East and Southeast Asia. This study aimed to clarify the current usage patterns of 3D-IGBT for cervical cancer in East and Southeast Asia. A questionnaire-based survey was performed in 1...

journal_title：Journal of radiation research

authors： Okonogi N,Wakatsuki M,Mizuno H,Fukuda S,Cao J,Kodrat H,Lau FN,Calaguas MJ,de Los Reyes RH,Chansilpa Y,Uddin AFMK,Adylkhanov T,Cho CK,Tsegmed U,Hoang NC,Ohno T,Nakano T,Kato S,Forum for Nuclear Cooperation in Asia.

更新日期：2020-07-06 00:00:00