Activities of the Japanese space weather forecast center at Communications Research Laboratory.

abstract：:New precision radiotherapy (RT) techniques reduce the uncertainties in localizing soft and moving tumors. However, there are still many uncontrollable internal organ movements. In our study, patients who underwent neoadjuvant chemoradiotherapy (NA-CRT) for rectal cancer were evaluated to determine inter-fraction mesor...

journal_title：Journal of radiation research

authors： Alickikus ZA,Kuru A,Aydin B,Akcay D,Gorken IB

更新日期：2020-03-23 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：:Millimeter waves are used in various fields, and the risks of this wavelength range for human health must be carefully evaluated. In this study, we investigated the effects of millimeter waves on genotoxicity and heat shock protein expression in human corneal epithelial (HCE-T) and human lens epithelial (SRA01/04) cel...

journal_title：Journal of radiation research

authors： Koyama S,Narita E,Suzuki Y,Shiina T,Taki M,Shinohara N,Miyakoshi J

更新日期：2019-07-01 00:00:00

abstract：:X-ray induced neoplastic transformation of C3H/10T1/2 cells was suppressed equally by Lipid A and LPS. We examined the effects of several modifiers of arachidonic acid (AA) metabolism in our investigation on the suppression mechanism of LPS. Dexamethasone (DM), an inhibitor of phospholipase A2 (PLA2), abolished the ef...

journal_title：Journal of radiation research

authors： Sakiyama H,Yasukawa M,Nishijima M,Wada E,Kanegasaki S

更新日期：1993-12-01 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：:To gain an insight into the relationship between UVB-carcinogenesis and natural killer activity, we examined ultraviolet light-induced carcinogenesis in mice with high natural killer, activity (KSN) and mice with natural killer deficiency (KSN-bg). We exposed mice six times a week to three levels of daily ultraviolet ...

journal_title：Journal of radiation research

authors： Ishigaki Y,Yasuda K,Hashimoto N,Hayakawa J,Hiai H,Nikaido O

更新日期：1998-06-01 00:00:00

abstract：:The Rho-associated coiled-coil-containing protein kinase (ROCK) pathway is known to influence metastasis in several cancers; however, the impact of the pathway on clinical outcomes in patients undergoing radiotherapy remains unknown. In the present study, the expression of RhoA, RhoC, ROCK-1, ROCK-2 and p53 was immuno...

journal_title：Journal of radiation research

authors： Tanaka K,Matsumoto Y,Ishikawa H,Fukumitsu N,Numajiri H,Murofushi K,Oshiro Y,Okumura T,Satoh T,Sakurai H

更新日期：2020-03-23 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：:The aim of this study was to compare the dosimetric parameters of whole-pelvic radiotherapy (WPRT) for cervical cancer among plans involving 3D conformal radiotherapy (3D-CRT), intensity-modulated radiotherapy (IMRT), or spot-scanning proton therapy (SSPT). The dose distributions of 3D-CRT-, IMRT-, and SSPT-based WPRT...

journal_title：Journal of radiation research

authors： Hashimoto S,Shibamoto Y,Iwata H,Ogino H,Shibata H,Toshito T,Sugie C,Mizoe JE

更新日期：2016-09-01 00:00:00

abstract：:Alzheimer's disease (AD) is the most common progressive and irreversible neurodegenerative disease and it is caused by neuronal death in the brain. Recent studies have shown that non-ionizing radiofrequency (RF) radiation has some beneficial cognitive effects in animal models of AD. In this study, we examined the effe...

journal_title：Journal of radiation research

authors： Lee JS,Kim JY,Kim HJ,Kim JC,Lee JS,Kim N,Park MJ

更新日期：2016-11-01 00:00:00

abstract：:Our purpose was to develop recommendations for contouring the computed tomography (CT)-based high-risk clinical target volume (CTVHR) for 3D image-guided brachytherapy (3D-IGBT) for cervical cancer. A 15-member Japanese Radiation Oncology Study Group (JROSG) committee with expertise in gynecological radiation oncology...

journal_title：Journal of radiation research

authors： Ohno T,Wakatsuki M,Toita T,Kaneyasu Y,Yoshida K,Kato S,Ii N,Tokumaru S,Ikushima H,Uno T,Noda SE,Kazumoto T,Harima Y,The Working Group of the Gynecological Tumor Committee of the Japanese Radiation Oncology Study Group (JROSG).

更新日期：2017-05-01 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：: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：:Tritium precipitations in European cities and in Osaka, Japan were analyzed before and after the Chernobyl nuclear plant accident by the time series analysis code Census IIX11 developed by US Department of Commerce Bureau of the Census. Results of this analysis showed no significant tritium precipitation was produced ...

journal_title：Journal of radiation research

authors： Koga T,Morishima H,Niwa T,Kawai H

更新日期：1991-09-01 00:00:00

abstract：:This study investigates whether in-room computed tomography (CT)-based adaptive treatment planning (ATP) is robust against interfractional location variations, namely, interfractional organ motions and/or applicator displacements, in 3D intracavitary brachytherapy (ICBT) for uterine cervical cancer. In ATP, the radiat...

journal_title：Journal of radiation research

authors： Oku Y,Arimura H,Nguyen TT,Hiraki Y,Toyota M,Saigo Y,Yoshiura T,Hirata H

更新日期：2016-11-01 00:00:00

abstract：:This study was conducted in order to evaluate the cytotoxicity of high linear-energy-transfer (LET) ionizing radiation (IR) on glioblastoma cells and fibroblasts using different modes of cell inactivation assays. Two human glioblastoma cell lines with or without p53-mutation, and fibroblasts were used as materials. Ga...

journal_title：Journal of radiation research

authors： Tsuboi K,Moritake T,Tsuchida Y,Tokuuye K,Matsumura A,Ando K

更新日期：2007-07-01 00:00:00

abstract：:Before the sorafenib era, advanced but liver-confined hepatocellular carcinoma (HCC) was treated by liver-directed therapy. Hepatic arterial concurrent chemoradiotherapy (CCRT) has been performed in our group, giving substantial local control but frequent failure. The aim of this study was to analyze patterns of failu...

journal_title：Journal of radiation research

authors： Cha H,Yoon HI,Lee IJ,Koom WS,Han KH,Seong J

更新日期：2013-11-01 00:00:00

abstract：:XRCC4 is a protein associated with DNA Ligase IV, which is thought to join two DNA ends at the final step of DNA double-strand break repair through non-homologous end joining. In response to treatment with ionizing radiation or DNA damaging agents, XRCC4 undergoes DNA-PK-dependent phosphorylation. Furthermore, Ser260 ...

journal_title：Journal of radiation research

authors： Sharma MK,Imamichi S,Fukuchi M,Samarth RM,Tomita M,Matsumoto Y

更新日期：2016-03-01 00:00:00

abstract：:The fertility span between the first and the last estrus was compared among female Chinese hamsters exposed to 1 Gy X-rays on neonatal day 0, 2, 4, 6, 8, 10 and 14. The fertility span changed dramatically according to the age at the time of irradiation. The females irradiated on day 4, 6 and 8 showed a definite delay ...

journal_title：Journal of radiation research

authors： Tateno H,Mikamo K

更新日期：1989-06-01 00:00:00

abstract：:Several models for the action of mixed irradiation with two types of radiation have been proposed in the last two decades, although the superiority or inferiority of these models is not completely elucidated. However, mixed irradiation is sometimes composed of more than two types of radiation, and for this type of mix...

journal_title：Journal of radiation research

authors： Suzuki S

更新日期：1998-09-01 00:00:00

abstract：:We generated low-flux X-ray micro-planar beams (MPBs) using a laboratory-scale industrial X-ray generator (60 kV/20 mA) with custom-made collimators with three different peak/pitch widths (50/200 μm, 100/400 μm, 50/400 μm). To evaluate normal skin reactions, the thighs of C3H/HeN mice were exposed to 100 and 200 Gy MP...

journal_title：Journal of radiation research

authors： Hong Z,Zenkoh J,Le B,Gerelchuluun A,Suzuki K,Moritake T,Washio M,Urakawa J,Tsuboi K

更新日期：2015-09-01 00:00:00

abstract：:PU-H71, a heat shock protein 90 (Hsp90) inhibitor, has yielded therapeutic efficacy in many preclinical models and is currently in clinical trials. Carbon-ion radiotherapy (CIRT) has provided successful tumor control; however, there is still room for improvement, particularly in terms of tumor-specific radiosensitizat...

journal_title：Journal of radiation research

authors： Li HK,Matsumoto Y,Furusawa Y,Kamada T

更新日期：2016-09-01 00:00:00

abstract：:In our previous studies, we found that low-dose radiation inhibits oxidative stress-induced diseases due to increased antioxidants. Although these effects of low-dose radiation were demonstrated, further research was needed to clarify the effects. However, the analysis of oxidative stress is challenging, especially th...

journal_title：Journal of radiation research

authors： Kanzaki N,Kataoka T,Etani R,Sasaoka K,Kanagawa A,Yamaoka K

更新日期：2017-01-01 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 study aimed to detect features of human serum proteome that were associated with exposure to ionizing radiation. The analyzed group consisted of 46 patients treated with radical radiotherapy for larynx cancer; patients were irradiated with total doses in a range from 51 to 72 Gy. Three consecutive blood samples we...

journal_title：Journal of radiation research

authors： Widłak P,Pietrowska M,Wojtkiewicz K,Rutkowski T,Wygoda A,Marczak L,Marczyk M,Polańska J,Walaszczyk A,Domińczyk I,Składowski K,Stobiecki M,Polański A

更新日期：2011-01-01 00:00:00

abstract：:The purpose of the study was to quantify local setup errors and evaluate the planning target volume (PTV) margins for sub-regions in cone-beam computed tomography (CBCT)-guided post-mastectomy radiation therapy (PMRT). The local setup errors of 20 patients undergoing CBCT-guided PMRT were analysed retrospectively. Ima...

journal_title：Journal of radiation research

authors： Zhou J,Li S,Ye C,Shen K,Li A,Chen G,Li X,Bai S,Wang W,Zhong R

更新日期：2020-05-22 00:00:00

abstract：:Due to the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident, the evacuees from Namie Town still cannot reside in the town, and some continue to live in temporary housing units. In this study, the radon activity concentrations were measured at temporary housing facilities, apartments and detached houses in Fukush...

journal_title：Journal of radiation research

authors： Hosoda M,Tokonami S,Omori Y,Ishikawa T,Iwaoka K

更新日期：2016-07-01 00:00:00

abstract：:This study is a subset analysis of a retrospective multicenter study performed in Japan and its purpose was to investigate the effectiveness of stereotactic body radiotherapy (SBRT) for pulmonary oligometastases from colorectal cancer. Local control (LC), freedom from further metastases, relapse-free survival and over...

journal_title：Journal of radiation research

authors： Yamamoto T,Niibe Y,Matsumoto Y,Onishi H,Aoki M,Nishikawa A,Oh RJ,Shintani T,Yahara K,Ozaki M,Manabe Y,Jingu K

更新日期：2020-11-16 00:00:00

abstract：:Respiratory motion management is a huge challenge in radiation therapy. Respiratory motion induces temporal anatomic changes that distort the tumor volume and its position. In this study, a markerless tumor-tracking algorithm was investigated by performing phase recognition during stereotactic body radiation therapy (...

journal_title：Journal of radiation research

authors： Bhusal Chhatkuli R,Demachi K,Uesaka M,Nakagawa K,Haga A

更新日期：2019-01-01 00:00:00

abstract：:This study evaluated synthetic trehalose dicorynomycolate (S-TDCM), an immunomodulator, for its survival enhancing capacity and behavioral toxicity in B6D2F1 female mice. In survival experiments, mice were administered S-TDCM (25-400 micrograms/mouse i.p.) 20-24 hr before 5.6 Gy mixed-field fission-neutron irradiation...

journal_title：Journal of radiation research

authors： Landauer MR,McChesney DG,Ledney GD

更新日期：1997-03-01 00:00:00