Cytogenetic damage in circulating lymphocytes and buccal mucosa cells of head-and-neck cancer patients undergoing radiotherapy.

abstract：:Thermionic emission (TE)-type X-ray generators have been exclusively used in medicine, but there are many difficulties in making these X-ray sources compact. A field emission (FE)-type X-ray generator using carbon nanotubes is a newly-developed compact system that can be as small as several cm in length. Considering t...

journal_title：Journal of radiation research

authors： Nakazato T,Nakanishi M,Kita S,Okuyama F,Shibamoto Y,Otsuka T

更新日期：2007-03-01 00:00:00

abstract：:Efficacy of different schedules of HDR brachytherapy in concurrent chemoradiotherapy was evaluated. The study compared the effectiveness of the two HDR brachytherapy schedules which have the same Biological Effective Dose (BED) in locally advanced cervical carcinoma that was treated with concurrent chemoradiotherapy. ...

journal_title：Journal of radiation research

authors： Tharavichitkul E,Klunkin P,Lorvidhaya V,Sukthomya V,Chakrabhandu S,Pukanhaphan N,Chitapanarux I,Galalae R

更新日期：2012-01-01 00:00:00

abstract：:The objective of the present study was to estimate cancer risk associated with the low-level radiation exposure of an average annual effective dose of 6.4 mSv (including internal exposure) in the high background-radiation areas (HBRA) in Yangjiang, China. The mortality survey consisted of two steps, i.e., the follow-u...

journal_title：Journal of radiation research

authors： Tao Z,Zha Y,Akiba S,Sun Q,Zou J,Li J,Liu Y,Kato H,Sugahara T,Wei L

更新日期：2000-10-01 00:00:00

abstract：:In this review, we would like to introduce a unique approach for the estimation of radioadaptation. Recently, we proposed a new methodology for evaluating the repair efficiency of DNA double-strand breaks (DSB) using a model system. The model system can trace the fate of a single DSB, which is introduced within intron...

journal_title：Journal of radiation research

authors： Yatagai F,Sugasawa K,Enomoto S,Honma M

更新日期：2009-09-01 00:00:00

abstract：:Chromatin-regulating proteins represent a large class of novel targets for cancer therapy. In the context of radiotherapy, acetylation and deacetylation of histones by histone acetyltransferases (HATs) and histone deacetylases (HDACs) play important roles in the repair of DNA double-strand breaks generated by ionizing...

journal_title：Journal of radiation research

authors： Oike T,Ogiwara H,Amornwichet N,Nakano T,Kohno T

更新日期：2014-07-01 00:00:00

abstract：:Toll-like receptors (TLRs) are pattern recognition receptors that recognize pathogen-associated molecular patterns and are indispensable for antibacterial and antiviral immunity. Our previous report showed that ionizing radiation increases the cell surface expressions of TLR2 and TLR4 and enhances their responses to a...

journal_title：Journal of radiation research

authors： Yoshino H,Kashiwakura I

更新日期：2017-09-01 00:00:00

abstract：:Radiotherapy is an integral part of overall cancer therapy. One of the most serious adverse effects of irradiation concern, for long-term survivors, the development of post-radiation sarcoma (PRS) in healthy tissues located within the irradiated area. PRS have bad prognosis and are often detected at a late stage. Ther...

journal_title：Journal of radiation research

authors： Phulpin B,Tran N,Leroux A,Poussier S,Marie PY,Pinel S,Huger S,Henrot P,Gallet P,Blaise C,Bravetti P,Graff P,Merlin JL,Dolivet G

更新日期：2012-01-01 00:00:00

abstract：:This study proposes a quality assurance (QA) method incorporating radiobiological factors based on the QUANTEC-determined tumor control probability and the normal tissue complication probability (NTCP) of head-and-neck intensity-modulated radiation therapy (HN-IMRT). Per-beam measurements were conducted for 20 cases u...

journal_title：Journal of radiation research

authors： Hamatani N,Sumida I,Takahashi Y,Oda M,Seo Y,Isohashi F,Tamari K,Ogawa K

更新日期：2017-09-01 00:00:00

abstract：:Microbeams have undergone a renaissance since their introduction and early use in the mid 60s. Recent advances in imaging, software and beam delivery have allowed rapid technological developments in microbeams for use in a range of experimental studies. The resurgence in the use of microbeams since the mid 90s has coi...

journal_title：Journal of radiation research

authors： Prise KM,Schettino G,Vojnovic B,Belyakov O,Shao C

更新日期：2009-03-01 00:00:00

abstract：:We aimed to investigate the effect of chronic radiation exposure associated with the Fukushima Daiichi Nuclear Power Plant (FNPP) accident on the testes of boar and inobuta (a hybrid of Sus scrofa and Sus scrofa domestica). This study examined the contamination levels of radioactive caesium (Cs), especially (134)Cs an...

journal_title：Journal of radiation research

authors： Yamashiro H,Abe Y,Hayashi G,Urushihara Y,Kuwahara Y,Suzuki M,Kobayashi J,Kino Y,Fukuda T,Tong B,Takino S,Sugano Y,Sugimura S,Yamada T,Isogai E,Fukumoto M

更新日期：2015-12-01 00:00:00

abstract：:We investigated the effects of proton irradiation on the function and structure of the Pseudomonas aeruginosa peroxiredoxin (PaPrx). Polyacrylamide gel demonstrated that PaPrx proteins exposed to proton irradiation at several doses exhibited simultaneous formation of high molecular weight (HMW) complexes and fragmenta...

journal_title：Journal of radiation research

authors： Park CH,Lee SS,Kim KR,Jung MH,Lee SY,Cho EJ,Singh S,Chung BY

更新日期：2014-01-01 00:00:00

abstract：:The purpose of this study was to analyze the dosimetry and investigate the clinical outcomes of radiation-induced rib fractures (RIRFs) after stereotactic body radiotherapy (SBRT). A total of 126 patients with Stage I primary lung cancer treated with SBRT, who had undergone follow-up computed tomography (CT) at least ...

journal_title：Journal of radiation research

authors： Miura H,Inoue T,Shiomi H,Oh RJ

更新日期：2015-03-01 00:00:00

abstract：:The purpose of this study was to investigate the radiosensitizing effect of geldanamycin (GA), an inhibitor of heat shock protein 90, on tumour cells and normal cells. We tested the effect of a combination of GA and radiation on cell survival, PI3K/Akt-related proteins and apoptosis induction. GA sensitized tumour cel...

journal_title：Journal of radiation research

authors： Matsumoto Y,Machida H,Kubota N

更新日期：2005-06-01 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：:In patients with various cancers, modified Glasgow prognostic score (mGPS) before treatment has predicted prognoses after antitumor therapy. This study aimed to assess whether pretreatment mGPS also has predictive value in patients with muscle-invasive bladder cancer (MIBC) after radiotherapy. A retrospective review a...

journal_title：Journal of radiation research

authors： Kikuchi K,Nakamura R,Segawa T,Oikawa H,Ariga H

更新日期：2020-07-06 00:00:00

abstract：PURPOSE:To elucidate the mechanism underlying the in vivo radioprotection activity by Zn-containing, heat-treated Saccharomyces cerevisiae yeast (Zn-yeast). MATERIALS AND METHODS:Zn-yeast suspension was administered into C3H/He mice immediately after whole body irradiation (WBI) at 7.5 Gy. Bone marrow was extracted fr...

journal_title：Journal of radiation research

authors： Ueno M,Imadome K,Iwakawa M,Anzai K,Ikota N,Imai T

更新日期：2010-01-01 00:00:00

abstract：:Modern treatment machines have shown small inter-unit variability regarding beam data. Recently, vendor-provided average beam data, such as the Representative Beam Data (RBD) of the TrueBeam (Varian Medical Systems, Palo Alto, CA, USA), has been used for modeling of the Eclipse (Varian Medical Systems) treatment plann...

journal_title：Journal of radiation research

authors： Isono M,Akino Y,Mizuno H,Tanaka Y,Masai N,Yamamoto T

更新日期：2020-03-23 00:00:00

abstract：:Several studies have reported the usefulness of the field-in-field (FIF) technique in breast radiotherapy. However, the methods for the FIF technique used in these studies vary. These methods were classified into three categories. We simulated a radiotherapy plan with each method and analyzed the outcomes. In the firs...

journal_title：Journal of radiation research

authors： Tanaka H,Hayashi S,Hoshi H

更新日期：2014-07-01 00:00:00

abstract：:To determine the patterns of gene expression responsible for the radiosensitivity of glioblastoma cells, we analyzed transcriptional changes after ionizing radiation in different cell lines. After completing clonogenic survival assays, we selected two glioblastoma cell lines with different radiosensitivities. Subseque...

journal_title：Journal of radiation research

authors： Otomo T,Hishii M,Arai H,Sato K,Sasai K

更新日期：2004-03-01 00:00:00

abstract：:The aim of this study was to compare the anti-oxidative and anti-inflammatory activities of gamma-irradiated persimmon leaf extract (GPLE) with those of non-irradiated persimmon leaf extract (PLE). Ethanolic extract of persimmon leaf was exposed to gamma irradiation at a dose of 10 kGy. After gamma irradiation, the co...

journal_title：Journal of radiation research

authors： Cho BO,Nchang Che D,Yin HH,Jang SI

更新日期：2017-09-01 00:00:00

abstract：:The space radiation environment imposes increased dangers of exposure to ionizing radiation, particularly during a solar particle event (SPE). These events consist primarily of low energy protons that produce a highly inhomogeneous dose distribution. Due to this inherent dose heterogeneity, experiments designed to inv...

journal_title：Journal of radiation research

authors： Diffenderfer ES,Dolney D,Schaettler M,Sanzari JK,McDonough J,Cengel KA

更新日期：2014-03-01 00:00:00

abstract：:This study aimed to identify factors that predict prognosis after radiotherapy for brain metastases (BMs) from small-cell lung cancer (SCLC). This study retrospectively evaluated 48 consecutive patients who underwent whole-brain radiotherapy (WBRT) for BMs from SCLC between February 2008 and December 2017. WBRT was de...

journal_title：Journal of radiation research

authors： Anami S,Doi H,Nakamatsu K,Uehara T,Wada Y,Fukuda K,Inada M,Ishikawa K,Kanamori S,Nishimura Y

更新日期：2019-03-01 00:00:00

abstract：:Histone H2AX undergoes phosphorylation at Ser-139 (gamma-H2AX) rapidly in response to DNA double-strand breaks (DSBs) induced by ionizing radiation. The post-translational modification of H2AX plays a central role in responses to radiation, including the repair of DSBs. Although ataxia telangiectasia mutated (ATM) kin...

journal_title：Journal of radiation research

authors： Koike M,Mashino M,Sugasawa J,Koike A

更新日期：2008-07-01 00:00:00

abstract：:We propose a clinical workflow of stereotactic volumetric modulated arc therapy (VMAT) for a lung tumor from planning to tumor position verification using 4D planning computed tomography (CT) and 4D cone-beam CT (CBCT). A 4D CT scanner, an Anzai belt and a BodyFix were employed to obtain 10-phase respiratory-correlate...

journal_title：Journal of radiation research

authors： Nakagawa K,Haga A,Kida S,Masutani Y,Yamashita H,Takahashi W,Sakumi A,Saotome N,Shiraki T,Ohtomo K,Iwai Y,Yoda K

更新日期：2013-01-01 00:00:00

abstract：:In hypofractionated stereotactic radiotherapy (SRT), high doses per fraction are usually used and the dose delivery pattern is different from that of conventional radiation. The daily dose is usually given intermittently over a longer time compared with conventional radiotherapy. During prolonged radiation delivery, s...

journal_title：Journal of radiation research

authors： Shibamoto Y,Miyakawa A,Otsuka S,Iwata H

更新日期：2016-08-01 00:00:00

abstract：:A synergistic interaction of hyperthermia with ionizing or UV light (254 nm) radiation was analyzed in experiments with yeast cells. For a fixed dose rate of radiation, the synergism was shown to be observed only within a definite temperature range (40-45 degrees C), inside of which there was an optimal temperature to...

journal_title：Journal of radiation research

authors： Kim JK,Petin VG,Zhurakovskaya GP

更新日期：2001-12-01 00:00:00

abstract：:An overview is given of the dose-response relationship for stable chromosome aberrations (i.e., translocations and inversions) in the peripheral blood lymphocytes of A-bomb survivors in Hiroshima. Special emphasis is placed on (i) the overdispersion of survivor cases with either unexpectedly high or low aberration fre...

journal_title：Journal of radiation research

authors： Awa AA,Nakano M,Ohtaki K,Kodama Y,Lucas J,Gray J

更新日期：1992-03-01 00:00:00

abstract：:We evaluated the interrelationship between rectal content and intrafraction motion of the prostate. Forty seven prostate cancer patients instructed to remove their rectal gas were imaged by planning CT and MRI before radiotherapy (RT) and during RT. The total scan time was comparable to our cone-beam CT scanning and t...

journal_title：Journal of radiation research

authors： Ogino I,Kaneko T,Suzuki R,Matsui T,Takebayashi S,Inoue T,Morita S

更新日期：2011-01-01 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 quantify the changes of tumor blood flow (BF) in cervical cancer after radiation therapy by using perfusion computed tomography (CT), and to examine the difference between maximum slope (MS) and single-input one-compartment model (SOCM) methods. Fourteen consecutive patients who receiv...

journal_title：Journal of radiation research

authors： Shibuya K,Tsushima Y,Horisoko E,Noda SE,Taketomi-Takahashi A,Ohno T,Amanuma M,Endo K,Nakano T

更新日期：2011-01-01 00:00:00