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https://www.readbyqxmd.com/read/28102667/two-different-structures-of-the-oxygen-evolving-complex-in-the-same-polypeptide-frameworks-of-photosystem-ii
#1
Ayako Tanaka, Yoshimasa Fukushima, Nobuo Kamiya
The oxygen-evolving complex (OEC) forms the heart of photosystem II (PSII) in photosynthesis. The crystal structure of PSII from Thermosynechococcus vulcanus has been reported at a resolution of 1.9 Å and at an averaged X-ray dose of 0.43 MGy. The OEC structure is suggested to be partially reduced to Mn(II) by EXAFS and DFT compu-tational studies. Recently, the "radiation-damage-free" struc-tures have been published at 1.95 Å resolution using XFEL, but reports continued to appear that the OEC is reduced to the S0-state of the Kok cycle...
January 19, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28102551/foliar-uptake-of-radiocaesium-from-irrigation-water-by-paddy-rice%C3%A2-oryza-sativa-an-overlooked-pathway-in-contaminated-environments
#2
Shinichiro Uematsu, Hildegarde Vandenhove, Lieve Sweeck, May Van Hees, Jean Wannijn, Erik Smolders
Flooded (paddy) rice (Oryza sativa) can take up ions from the irrigation water by foliar uptake via the exposed stem base. We hypothesised that the stem base uptake of radiocaesium (RCs) is a pathway for rice grown in RCs-contaminated environments. We developed a bi-compartmental device which discriminates the stem base from root RCs uptake from solutions, thereby using RCs isotopes ((137) Cs and (134) Cs) with < 2% solution leak between the compartments. Radiocaesium uptake was linear over time (0-24 h)...
January 19, 2017: New Phytologist
https://www.readbyqxmd.com/read/28101485/minimizing-the-health-effects-of-the-nuclear-accident-in-fukushima-on-thyroids
#3
REVIEW
Shigenobu Nagataki
RESULTS OF THE SCREENING OF THYROIDS: Because of the March 2011 nuclear accident in Fukushima, Japan, the Fukushima Prefecture initiated a thyroid ultrasound examination program. The first cycle of examinations on all children (more than 300,000) of the Fukushima Prefecture identified 116 patients as having malignant or suspected malignant thyroid nodules, and in the second cycle 59 new cases were identified. According to the available data, the thyroid cancers found by the screening are unlikely to be due to radiation, but the possibility cannot be excluded...
December 2016: European Thyroid Journal
https://www.readbyqxmd.com/read/28099595/exome-sequence-analysis-of-kaposiform-hemangioendothelioma-identification-of-putative-driver-mutations
#4
Sho Egashira, Masatoshi Jinnin, Miho Harada, Shinichi Masuguchi, Satoshi Fukushima, Hironobu Ihn
BACKGROUND: Kaposiform hemangioendothelioma is a rare, intermediate, malignant tumor. The tumor's etiology remains unknown and there are no specific treatments. OBJECTIVE: In this study, we performed exome sequencing using DNA from a Kaposiform hemangioendothelioma patient, and found putative candidates for the responsible mutations. METHOD: The genomic DNA for exome sequencing was obtained from the tumor tissue and matched normal tissue from the same individual...
November 2016: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28099497/assessing-the-mental-health-impact-of-the-2011-great-japan-earthquake-tsunami-and-radiation-disaster-on-elementary-and-middle-school-children-in-the-fukushima-prefecture-of-japan
#5
Mark Lieber
BACKGROUND: On March 11, 2011, a magnitude 9.0 earthquake occurred off of Japan's Pacific coast, which was followed by huge tsunamis that destroyed many coastal cities in the area. Due to the earthquake and subsequent tsunami, malfunctions occurred at the Fukushima Daiichi (Fukushima I) nuclear power plant, resulting in the release of radioactive material in the region. While recent studies have investigated the effects of these events on the mental health of adults in the region, no studies have yet been performed investigating similar effects among children...
2017: PloS One
https://www.readbyqxmd.com/read/28099476/whole-body-counter-evaluation-of-internal-radioactive-cesium-in-dogs-and-cats-exposed-to-the-fukushima-nuclear-disaster
#6
Seiichi Wada, Nobuhiko Ito, Masamichi Watanabe, Takehiko Kakizaki, Masahiro Natsuhori, Jun Kawamata, Yoshio Urayama
As a result of the 2011 nuclear incident that occurred at the Fukushima Nuclear Power Plant, a large number of abandoned dogs and cats were left within the disaster zone. A small number of these animals were rescued and cared for at shelters. Prior to the dispersal of these animals to their owners or fosterers, we evaluated the degree of internal radiocesium contamination using a specially designed whole-body counter. We conducted 863 non-invasive measurements of gamma rays due to internal radioactive cesium for 68 dogs and 120 cats at one shelter...
2017: PloS One
https://www.readbyqxmd.com/read/28096407/development-of-chronic-allergic-responses-by-dampening-bcl6-mediated-suppressor-activity-in-memory-t-helper-2-cells
#7
Takashi Ogasawara, Masahiko Hatano, Hisae Satake, Jun Ikari, Toshibumi Taniguchi, Nobuhide Tsuruoka, Haruko Watanabe-Takano, Lisa Fujimura, Akemi Sakamoto, Hirokuni Hirata, Kumiya Sugiyama, Yasutsugu Fukushima, Susumu Nakae, Kenji Matsumoto, Hirohisa Saito, Takeshi Fukuda, Kazuhiro Kurasawa, Koichiro Tatsumi, Takeshi Tokuhisa, Masafumi Arima
Mice deficient in the transcriptional repressor B-cell CLL/lymphoma 6 (Bcl6) exhibit similar T helper 2 (TH2) immune responses as patients with allergic diseases. However, the molecular mechanisms underlying Bcl6-directed regulation of TH2 cytokine genes remain unclear. We identified multiple Bcl6/STAT binding sites (BSs) in TH2 cytokine gene loci. We found that Bcl6 is modestly associated with the BSs, and it had no significant effect on cytokine production in newly differentiated TH2 cells. Contrarily, in memory TH2 (mTH2) cells derived from adaptively transferred TH2 effectors, Bcl6 outcompeted STAT5 for binding to TH2 cytokine gene loci, particularly Interleukin4 (Il4) loci, and attenuated GATA binding protein 3 (GATA3) binding to highly conserved intron enhancer regions in mTH2 cells...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096257/inhibition-of-gastric-inhibitory-polypeptide-receptor-signaling-in-adipose-tissue-reduces-insulin-resistance-and-hepatic-steatosis-in-high-fat-diet-fed-mice
#8
Erina Joo, Norio Harada, Shunsuke Yamane, Toru Fukushima, Daisuke Taura, Kanako Iwasaki, Akiko Sankoda, Kimitaka Shibue, Takanari Harada, Kazuyo Suzuki, Akihiro Hamasaki, Nobuya Inagaki
Gastric inhibitory polypeptide receptor (GIPR) directly induces energy accumulation in adipose tissue in vitro However, the importance of the direct effect of GIPR signaling on adipose tissue in vivo remains unclear. In the present study, we generated adipose tissue- specific GIPR-knockout (GIPR(adipo-/-)) mice and investigated the direct actions of GIP in adipose tissue. Under high fat diet (HFD)-fed conditions, GIPR(adipo-/-) mice had significantly lower body weight and lean body mass compared with those in floxed GIPR (GIPR(fl/fl)) mice, although the fat volume was not significantly different between the two groups...
January 17, 2017: Diabetes
https://www.readbyqxmd.com/read/28093572/longitudinal-changes-in-body-mass-index-of-children-affected-by-the-great-east-japan-earthquake
#9
W Zheng, H Yokomichi, H Matsubara, M Ishikuro, M Kikuya, T Isojima, S Yokoya, T Tanaka, N Kato, S Chida, A Ono, M Hosoya, S Tanaka, S Kuriyama, S Kure, Z Yamagata
BACKGROUND: The evacuation and disruption in housing caused by the 2011 Great East Japan Earthquake and following nuclear radiation may have influenced child health in many respects. However, studies regarding longitudinal childhood growth are limited. Therefore, in this study we aimed to explore the influence of the earthquake on longitudinal changes in body mass index in preschool children. METHODS: Participants were children from nursery schools that cooperated with the study in the Iwate, Miyagi, and Fukushima Prefectures...
January 17, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28093314/remote-sensing-of-multiple-vital-signs-using-a-cmos-camera-equipped-infrared-thermography-system-and-its-clinical-application-in-rapidly-screening-patients-with-suspected-infectious-diseases
#10
Guanghao Sun, Yosuke Nakayama, Sumiyakhand Dagdanpurev, Shigeto Abe, Hidekazu Nishimura, Tetsuo Kirimoto, Takemi Matsui
BACKGROUND: Infrared thermography (IRT) is used to screen febrile passengers at international airports, but it suffers from low sensitivity. This study explored the application of a combined visible and thermal image processing approach that used a CMOS camera equipped with IRT to remotely sense multiple vital signs and screen patients with suspected infectious diseases. METHODS: An IRT system that produced visible and thermal images was used for image acquisition...
January 13, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28092218/analysis-of-the-effect-of-chronic-and-low-dose-radiation-exposure-on-spermatogenic-cells-of-male-large-japanese-field-mice-apodemus-speciosus-after-the-fukushima-daiichi-nuclear-power-plant-accident
#11
Sachio Takino, Hideaki Yamashiro, Yukou Sugano, Yohei Fujishima, Akifumi Nakata, Kosuke Kasai, Gohei Hayashi, Yusuke Urushihara, Masatoshi Suzuki, Hisashi Shinoda, Tomisato Miura, Manabu Fukumoto
In this study we analyzed the effect of chronic and low-dose-rate (LDR) radiation on spermatogenic cells of large Japanese field mice ( Apodemus speciosus ) after the Fukushima Daiichi Nuclear Power Plant (FNPP) accident. In March 2014, large Japanese field mice were collected from two sites located in, and one site adjacent to, the FNPP ex-evacuation zone: Tanashio, Murohara and Akogi, respectively. Testes from these animals were analyzed histologically. External dose rate from radiocesium (combined (134)Cs and (137)Cs) in these animals at the sampling sites exhibited 21 μGy/day in Tanashio, 304-365 μGy/day in Murohara and 407-447 μGy/day in Akogi...
January 16, 2017: Radiation Research
https://www.readbyqxmd.com/read/28078663/inhibition-of-hsp90-exerts-anti-tumor-effect-on-angiosarcoma-involvement-of-vegf-signaling-pathway
#12
S Yamada-Kanazawa, I Kajihara, S Fukushima, M Jinnin, M Masuzawa, M Masuzawa, Y Amoh, D Hoshina, R Abe, H Ihn
BACKGROUND: Angiosarcoma is a rare malignant neoplasm derived from endothelial cells and its prognosis is poor because advanced angiosarcoma is resistant to standard chemotherapy, and new therapies are urgently needed. Heat shock protein 90 (HSP90) has been identified as a molecular chaperone that regulates various cancer-related proteins. Numerous clinical trials are testing the effectiveness of HSP90 inhibitors in various types of malignancies. OBJECTIVES: To investigate the role of HSP90 in the pathogenesis of angiosarcoma and whether inhibition of HSP90 may have anti-tumor activity...
January 12, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28078450/genome-wide-methylation-profiles-in-primary-intracranial-germ-cell-tumors-indicate-a-primordial-germ-cell-origin-for-germinomas
#13
Shintaro Fukushima, Satoshi Yamashita, Hisato Kobayashi, Hirokazu Takami, Kohei Fukuoka, Taishi Nakamura, Kai Yamasaki, Yuko Matsushita, Hiromi Nakamura, Yasushi Totoki, Mamoru Kato, Tomonari Suzuki, Kazuhiko Mishima, Takaaki Yanagisawa, Akitake Mukasa, Nobuhito Saito, Masayuki Kanamori, Toshihiro Kumabe, Teiji Tominaga, Motoo Nagane, Toshihiko Iuchi, Koji Yoshimoto, Masahiro Mizoguchi, Kaoru Tamura, Keiichi Sakai, Kazuhiko Sugiyama, Mitsutoshi Nakada, Kiyotaka Yokogami, Hideo Takeshima, Yonehiro Kanemura, Masahide Matsuda, Akira Matsumura, Kazuhiko Kurozumi, Keisuke Ueki, Masahiro Nonaka, Akio Asai, Nobutaka Kawahara, Yuichi Hirose, Tatusya Takayama, Yoichi Nakazato, Yoshitaka Narita, Tatsuhiro Shibata, Masao Matsutani, Toshikazu Ushijima, Ryo Nishikawa, Koichi Ichimura
Intracranial germ cell tumors (iGCTs) are the second most common brain tumors among children under 14 in Japan. The World Health Organization classification recognizes several subtypes of iGCTs, which are conventionally subclassified into pure germinoma or non-germinomatous GCTs. Recent exhaustive genomic studies showed that mutations of the genes involved in the MAPK and/or PI3K pathways are common in iGCTs; however, the mechanisms of how different subtypes develop, often as a mixed-GCT, are unknown. To elucidate the pathogenesis of iGCTs, we investigated 61 GCTs of various subtypes by genome-wide DNA methylation profiling...
January 11, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28075522/crucial-role-of-carbonic-anhydrase-ix-in-tumorigenicity-of-xenotransplanted-adult-t-cell-leukemia-derived-cells
#14
Kentaro Nasu, Kazunori Yamaguchi, Tomoka Takanashi, Keiichi Tamai, Ikuro Sato, Shoji Ine, Osamu Sasaki, Kennichi Satoh, Nobuyuki Tanaka, Yuetsu Tanaka, Takuya Fukushima, Hideo Harigae, Kazuo Sugamura
Carbonic anhydrase IX (CA9) is a membrane-associated carbonic anhydrase that regulates cellular pH, is upregulated in various solid tumors, and is considered to be a therapeutic target. Here, we describe the essential role of CA9 in the tumorigenicity of cells derived from human adult T-cell leukemia/lymphoma (ATL). We previously established the highly tumorigenic ST1-N6 subline from the ATL-derived ST1 cell line by serial xenotransplantation in NOG mice. In the present study, we first show that CA9 expression is strongly enhanced in ST1-N6 cells...
January 11, 2017: Cancer Science
https://www.readbyqxmd.com/read/28070058/registry-report-on-heart-transplantation-in-japan-june-2016
#15
Norihide Fukushima, Minoru Ono, Yoshikatsu Saiki, Yoshiki Sawa, Shinichi Nunoda, Mitsuaki Isobe
No abstract text is available yet for this article.
January 6, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28068959/pancreatic-neuroendocrine-tumor-with-metastasis-to-the-spleen-a-case-report
#16
Yasunaru Sakuma, Yoshikazu Yasuda, Naohiro Sata, Yoshinori Hosoya, Atsushi Shimizu, Hirofumi Fujii, Daisuke Matsubara, Noriyuki Fukushima, Atsushi Miki, Misato Maeno, Alan Kawarai Lefor
BACKGROUND: Long-term term survival in patients with pancreatic neuroendocrine tumors has been reported, even in patients with metastatic disease. Metastases to the spleen are extremely rare, but have been reported from a number of primary malignancies, such as breast cancer, lung cancer, melanoma and ovarian cancer. This is the first report of a splenic metastasis from a primary pancreatic neuroendocrine tumor. CASE PRESENTATION: The patient presented as a 53 years old white male with anemia and fatigue...
January 9, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28067537/a-farmhouse-son-in-law-and-radiation
#17
S Endo
The residents of Suetsugi in Fukushima Prefecture measured ambient dose rates and radiocaesium concentrations in the soil after the accident at Fukushima Daiichi nuclear power plant in an attempt to maintain living conditions in the region. The measurements were colour plotted into maps to visualise the contamination. Through the receipt of external support, a number of radioactivity-related initiatives were implemented for the residents. Studies were also undertaken regarding the impact of radiocaesium contamination on rice farming in Suetsugi following the Great East Japan Earthquake and the accident at Fukushima Daiichi nuclear power plant...
January 1, 2017: Annals of the ICRP
https://www.readbyqxmd.com/read/28065477/quantitative-analysis-of-the-yield-of-avian-h7-influenza-virus-haemagglutinin-protein-produced-in-silkworm-pupae-with-the-use-of-the-codon-optimized-dna-a-possible-oral-vaccine
#18
Kuniaki Nerome, Sayaka Matsuda, Kenichi Maegawa, Shigeo Sugita, Kazumichi Kuroda, Kazunori Kawasaki, Reiko Nerome
In this study, we aimed to quantitatively compare the increased production of three H7 influenza virus-like particle (VLP) haemagglutinin (HA) with the use of a codon-optimized single HA gene in silkworm pupae. Recombinant baculovirus (Korea H7-BmNPV) could produce 0.40 million HA units per pupa, corresponding to 1832μg protein. The yield of the HA produced in larva was estimated to be approximately 0.31 million HA units per larva, and there were no significant differences between the three HA proteins. We could establish efficient recovery system of HA production in larvae and pupae with the use of three cycles sonication methods...
January 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28065382/energy-efficiency-and-pulmonary-artery-flow-after-balloon-pulmonary-angioplasty-for-inoperable-chronic-thromboembolic-pulmonary-hypertension-analysis-by-phase-contrast-mri
#19
Michinobu Nagao, Yuzo Yamasaki, Kohtaro Abe, Kazuya Hosokawa, Satoshi Kawanami, Takeshi Kamitani, Torahiko Yamanouchi, Hidetake Yabuuchi, Kenji Fukushima, Hiroshi Honda
PURPOSE: The aims of this study were to propose a new quantitative method for pulmonary artery (PA) flow energetics using phase-contrast magnetic resonance imaging (PC-MRI), and to investigate how balloon pulmonary angioplasty (BPA) impacts energetics in chronic thromboembolic pulmonary hypertension (CTEPH). MATERIALS AND METHODS: PC-MRI at 3-Teslar and with a flow sensitive gradient echo was used to examine energetics prior to and following BPA for 24 CTEPH patients...
February 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28064240/a-comparison-of-remediation-after-the-chernobyl-and-fukushima-daiichi-accidents
#20
Sergey Fesenko, Mikhail Balonov, Gerhard Pröhl, Shinichi Nakayama, Brenda J Howard
No abstract text is available yet for this article.
January 6, 2017: Radiation Protection Dosimetry
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