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Shu WM, Kawakubo Y, O’hira S, Oya Y, Hayashi T, Nakamura H, Iwai Y, Nishi MF, Gentile CA, Skinner CH, Langish S, Guttadora G, Carpe A, Young KM. Tritium Decontamination of TFTR D-T Plasma Facing Components Using an Ultra Violet Laser. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst02-a22675] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Osakabe M, Takeiri Y, Morisaki T, Motojima G, Ogawa K, Isobe M, Tanaka M, Murakami S, Shimizu A, Nagaoka K, Takahashi H, Nagasaki K, Takahashi H, Fujita T, Oya Y, Sakamoto M, Ueda Y, Akiyama T, Kasahara H, Sakakibara S, Sakamoto R, Tokitani M, Yamada H, Yokoyama M, Yoshimura Y. Current Status of Large Helical Device and Its Prospect for Deuterium Experiment. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.1080/15361055.2017.1335145] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kodama H, Morimoto Y, Sasaki M, Oyaidu M, Sagara A, Noda N, Oya Y, Okuno K. Chemical Behaviors of Energetic Deuterium Implanted into Boron Coatings. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst03-a371] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Oya Y, Makide Y, Chiba K, Tanaka S, Morimoto Y, Kodama H, Okuno K, Kawano T, Asakura Y, Uda T. Hydrogen Adsorption Behavior on Stainless Steel for Cooling Pipe in Fusion Reactor. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst03-a360] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Oya Y, Onishi Y, Okuno K, Kawano T, Asakura Y, Uda T, Tanaka S. Hydrogen Isotope Behavior in Type 316 Stainless Steel Sorbed by Various Methods. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst05-a996] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Hirohata Y, Shibahara T, Tanabe T, Oya Y, Arai T, Gotoh Y, Masaki K, Yagyu J, Oyaidzu M, Okuno K, Nishikawa M, Miya N. Retention of Hydrogen Isotopes in Divertor Tiles Used in JT-60U. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst05-a986] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ishikawa H, Suda T, Yoshikawa A, Oyaidzu M, Ochiai K, Konno C, Munakata K, Oya Y, Okuno K. Study on Correlation Between Tritium Release Behavior and Annihilation Behavior of Irradiation Defects in Neutron-Irradiated Li4SiO4. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst08-a1779] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Odaa T, Shimada M, Zhang K, Calderoni P, Oya Y, Sokolov M, Kolasinski R, P. Sharpe J, Hatano Y. Development of Monte Carlo Simulation Code to Model Behavior of Hydrogen Isotopes Loaded into Tungsten Containing Vacancies. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst11-a12705] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Muroga T, Sze DK, Okuno K, Terai T, Kimura A, Kurtz RJ, Sagara A, Nygren R, Ueda Y, Doerner RP, Sharpe JP, Kunugi T, Morley NB, Hatano Y, Sokolov MA, Yamamoto T, Hasegawa A, Katoh Y, Ohno N, Tokunaga K, Konishi S, Fukada S, Calderoni P, Yokomine T, Messadek K, Oya Y, Hashimoto N, Hinoki T, Hashizume H, Norimatsu T, Shikama T, Stoller RE, Tanaka KA, Tillack MS. Midterm Summary of Japan-US Fusion Cooperation Program TITAN. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst11-a12373] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Yoshikawa A, Oya Y, Miyauchi H, Nakahata T, Nishikawa Y, Suda T, Igarashi E, Oyaidzu M, Tokitani M, Iwakiri H, Yoshida N, Okuno K. Helium Implantation Effects on Retention Behavior of Hydrogen Isotopes in Oxygen-Contained Boron Films. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst07-a1602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Tokitani M, Miyamoto M, Masuzaki S, Fujii Y, Sakamoto R, Oya Y, Hatano Y, Otsuka T, Oyaidzu M, Kurotaki H, Suzuki T, Hamaguchi D, Isobe K, Asakura N, Widdowson A, Rubel M. Micro-/nano-characterization of the surface structures on the divertor tiles from JET ITER-like wall. FUSION ENGINEERING AND DESIGN 2017. [DOI: 10.1016/j.fusengdes.2017.01.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Taylor CN, Yamauchi Y, Shimada M, Oya Y, Hatano Y. Deuterium Retention in Helium and Neutron Irradiated Molybdenum. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.1080/15361055.2016.1273699] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Okano H, Oya Y, Shiraki K, Takase K, Nakano T, Takahashi M, Okamoto H. An autochthonous case of acute hepatitis E in Mie, Japan who was infected with a rare hepatitis E virus strain of subgenotype 3f. ACTA ACUST UNITED AC 2017. [DOI: 10.2957/kanzo.58.53] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Oya Y, Yoshida T, Tanaka K, Kuroda H, Shimizu J, Horio Y, Sakao Y, Inaba Y, Hida T, Yatabe Y. 448PD Association between EGFR T790M status and progression patterns during initial EGFR-TKIs treatment in patients harboring EGFR mutation. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw594.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sakurada S, Yuyama K, Uemura Y, Fujita H, Hu C, Toyama T, Yoshida N, Hinoki T, Kondo S, Shimada M, Buchenauer D, Chikada T, Oya Y. Annealing effects on deuterium retention behavior in damaged tungsten. NUCLEAR MATERIALS AND ENERGY 2016. [DOI: 10.1016/j.nme.2016.06.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kasai C, Sugimoto K, Moritani I, Tanaka J, Oya Y, Inoue H, Tameda M, Shiraki K, Ito M, Takei Y, Takase K. Changes in plasma ghrelin and leptin levels in patients with peptic ulcer and gastritis following eradication of Helicobacter pylori infection. BMC Gastroenterol 2016; 16:119. [PMID: 27716077 PMCID: PMC5050848 DOI: 10.1186/s12876-016-0532-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 09/17/2016] [Indexed: 12/17/2022] Open
Abstract
Background Helicobacter pylori (H. pylori) infection and eradication therapy have been known to influence gastric ghrelin and leptin secretion, which may lead to weight gain. However, the exact relationship between plasma ghrelin/leptin levels and H. pylori infection has remained controversial. The aim of this study was to investigate plasma ghrelin and leptin levels in H. pylori-positive and -negative patients, to compare the two levels of the hormones before and after H. pylori eradication, and to examine the correlation between body mass index (BMI) and active ghrelin or leptin levels, as well as that between atrophic pattern and active ghrelin or leptin levels. Methods Seventy-two H. pylori-positive patients who underwent upper gastrointestinal endoscopy, 46 diagnosed as having peptic ulcer and 26 as atrophic gastritis, were enrolled. Control samples were obtained from 15 healthy H. pylori-negative volunteers. The extent of atrophic change of the gastric mucosa was assessed endoscopically. Body weight was measured and blood was collected before and 12 weeks after H. pylori eradication therapy. Blood samples were taken between 8 and 10 AM after an overnight fast. Results Plasma ghrelin levels were significantly lower in H. pylori-positive patients than in H. pylori-negative patients. In particular, plasma active ghrelin levels were significantly lower in patients with gastritis compared with patients with peptic ulcer. Plasma ghrelin levels decreased after H. pylori eradication in both peptic ulcer and gastritis patients, while plasma leptin levels increased only in peptic ulcer patients. Plasma leptin levels and BMI were positively correlated, and active ghrelin levels and atrophic pattern were weakly negatively correlated in peptic ulcer patients. Conclusion H. pylori infection and eradication therapy may affect circulating ghrelin/leptin levels. This finding suggests a relationship between gastric mucosal injury induced by H. pylori infection and changes in plasma ghrelin and leptin levels.
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Iwabuchi E, Ishiyama A, Nakayama T, Kuru S, Takeshita E, Shimizu-Motohashi Y, Komaki H, Mori M, Oya Y, Nishino I, Sasaki M. IBIC-LG: Selectivity pattern of muscular MRI images in limb-girdle muscular dystrophy (LGMD) 2A using database of skeletal muscular images. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Hida T, Oya Y, Tanaka K, Yoshida T, Shimizu J, Horio Y, Yatabe Y, Itoh T, Shin W. 12P Volatolomic signatures of anaplastic lymphoma kinase gene rearrangement in adenocarcinoma. J Thorac Oncol 2016. [DOI: 10.1016/s1556-0864(16)30126-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Yoshida T, Oya Y, Tanaka K, Shimizu J, Horio Y, Hida T, Yatabe Y. 455P Differential crizotinib response duration among ALK fusion variants in ALK-positive NSCLC. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv532.39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tanaka K, Oya Y, Yoshida T, Shimizu J, Horio Y, Hida T, Yatabe Y. 473P Driver oncogene status in early-emerging lung adenocarcinoma. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv532.57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kasai C, Sugimoto K, Moritani I, Tanaka J, Oya Y, Inoue H, Tameda M, Shiraki K, Ito M, Takei Y, Takase K. Comparison of human gut microbiota in control subjects and patients with colorectal carcinoma in adenoma: Terminal restriction fragment length polymorphism and next-generation sequencing analyses. Oncol Rep 2015; 35:325-33. [PMID: 26549775 DOI: 10.3892/or.2015.4398] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 08/13/2015] [Indexed: 12/17/2022] Open
Abstract
Colorectal cancer (CRC) is the third leading cause of cancer-related deaths in Japan. The etiology of CRC has been linked to numerous factors including genetic mutation, diet, life style, inflammation, and recently, the gut microbiota. However, CRC-associated gut microbiota is still largely unexamined. This study used terminal restriction fragment length polymorphism (T-RFLP) and next-generation sequencing (NGS) to analyze and compare gut microbiota of Japanese control subjects and Japanese patients with carcinoma in adenoma. Stool samples were collected from 49 control subjects, 50 patients with colon adenoma, and 9 patients with colorectal cancer (3/9 with invasive cancer and 6/9 with carcinoma in adenoma) immediately before colonoscopy; DNA was extracted from each stool sample. Based on T-RFLP analysis, 12 subjects (six control and six carcinoma in adenoma subjects) were selected; their samples were used for NGS and species-level analysis. T-RFLP analysis showed no significant differences in bacterial population between control, adenoma and cancer groups. However, NGS revealed that i), control and carcinoma in adenoma subjects had different gut microbiota compositions, ii), one bacterial genus (Slackia) was significantly associated with the control group and four bacterial genera (Actinomyces, Atopobium, Fusobacterium, and Haemophilus) were significantly associated with the carcinoma-in-adenoma group, and iii), several bacterial species were significantly associated with each type (control: Eubacterium coprostanoligens; carcinoma in adenoma: Actinomyces odontolyticus, Bacteroides fragiles, Clostridium nexile, Fusobacterium varium, Haemophilus parainfluenzae, Prevotella stercorea, Streptococcus gordonii, and Veillonella dispar). Gut microbial properties differ between control subjects and carcinoma-in-adenoma patients in this Japanese population, suggesting that gut microbiota is related to CRC prevention and development.
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Oya Y. 3075 Association between clinical outcome of first EGFR-TKIs and T790M mutation in NSCLC patients harboring EGFR mutation with acquired resistance to EGFR-TKIs. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31716-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kasai C, Sugimoto K, Moritani I, Tanaka J, Oya Y, Inoue H, Tameda M, Shiraki K, Ito M, Takei Y, Takase K. Comparison of the gut microbiota composition between obese and non-obese individuals in a Japanese population, as analyzed by terminal restriction fragment length polymorphism and next-generation sequencing. BMC Gastroenterol 2015; 15:100. [PMID: 26261039 PMCID: PMC4531509 DOI: 10.1186/s12876-015-0330-2] [Citation(s) in RCA: 349] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 07/30/2015] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Obesity has become one of the most serious social problems in developed countries, including Japan. The relationship between the gut microbiota and obesity has recently attracted the attention of many researchers. Although the gut microbiota was long thought to contribute to obesity, the exact association remains largely unknown. We examined the human gut microbiota composition in a Japanese population in order to determine its relationship to obesity. METHODS Stool samples from 23 non-obese subjects (body mass index [BMI] <20 kg/m(2)) and 33 obese subjects (BMI ≥25 kg/m(2)) were collected and DNA was extracted prior to colonoscopy. After terminal restriction fragment length polymorphism (T-RFLP) analysis, samples from 10 subjects (4 non-obese and 6 obese) were selected and subjected to next-generation sequencing for species-level analysis. RESULTS T-RFLP analysis showed significantly reduced numbers of Bacteroidetes and a higher Firmicutes to Bacteroidetes ratio in obese subjects compared with non-obese subjects. Bacterial diversity was significantly greater in obese subjects compared with non-obese subjects. Next-generation sequencing revealed that obese and non-obese subjects had different gut microbiota compositions and that certain bacterial species were significantly associated with each group (obese: Blautia hydrogenotorophica, Coprococcus catus, Eubacterium ventriosum, Ruminococcus bromii, Ruminococcus obeum; non-obese: Bacteroides faecichinchillae, Bacteroides thetaiotaomicron, Blautia wexlerae, Clostridium bolteae, Flavonifractor plautii). CONCLUSION Gut microbial properties differ between obese and non-obese subjects in Japan, suggesting that gut microbiota composition is related to obesity.
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Okano H, Takahashi M, Isono Y, Tanaka H, Nakano T, Oya Y, Sugimoto K, Ito K, Ohmori S, Maegawa T, Kobayashi M, Nagashima S, Nishizawa T, Okamoto H. Characterization of sporadic acute hepatitis E and comparison of hepatitis E virus genomes in acute hepatitis patients and pig liver sold as food in Mie, Japan. Hepatol Res 2014; 44:E63-E76. [PMID: 23927634 DOI: 10.1111/hepr.12216] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 07/30/2013] [Accepted: 07/31/2013] [Indexed: 02/06/2023]
Abstract
AIM To characterize hepatitis E in Mie prefecture and to investigate whether raw pig liver sold as food in Mie is contaminated with hepatitis E virus (HEV) strains similar to those recovered from patients. METHODS Seventeen patients with sporadic acute hepatitis E treated from 2004 to 2012 were studied. A total of 243 packages of raw pig liver from regional grocery stores were tested for the presence of HEV RNA. The partial genomic sequences of human and swine HEV isolates were determined and subjected to the phylogenetic analyses. RESULTS The HEV isolates recovered from the 17 patients segregated into genotype 3 (n = 15) and genotype 4 (n = 2), and 15 genotype 3 isolates further segregated into 3e (n = 11) and 3b (n = 4). Pig liver specimens from 12 (4.9%) of the 243 packages had detectable HEV RNA. All 12 swine HEV isolates were grouped into genotype 3 (3a or 3b). Although no 3e strains were isolated from pig liver specimens, two 3b swine strains were 99.5-100% identical to two HEV strains recovered from hepatitis patients, within 412-nt partial sequences. CONCLUSION The 3e HEV was prevalent among hepatitis E patients. HEV RNA was detected in approximately 5% of pig liver sold as food. The presence of identical HEV strains between hepatitis patients and pig liver indicated that pigs play an important role as reservoirs for HEV in humans in Mie. Further studies are needed to clarify the source of 3e HEV in the animal and environmental reservoirs.
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Miyatake S, Tada H, Moriya S, Takanashi J, Hirano Y, Hayashi M, Oya Y, Nakashima M, Tsurusaki Y, Miyake N, Matsumoto N, Saitsu H. Atypical giant axonal neuropathy arising from a homozygous mutation by uniparental isodisomy. Clin Genet 2014; 87:395-7. [PMID: 25040701 DOI: 10.1111/cge.12455] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 07/01/2014] [Accepted: 07/02/2014] [Indexed: 11/28/2022]
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