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Kato K, Matsumura Y, Yamamoto M, Nagao M, Ito Y, Takakura S, Ichiyama S. Erratum to: Seasonal trend and clinical presentation of Bacillus cereus bloodstream infection: association with summer and indwelling catheter. Eur J Clin Microbiol Infect Dis 2016; 35:875-83. [PMID: 27010814 DOI: 10.1007/s10096-016-2618-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bacillus cereus, an opportunistic pathogen, can cause fatal infection. However, B. cereus bloodstream infections (BSIs) have not been well characterised. From 2008 to 2013, B. cereus isolates from all of the specimens and patients with B. cereus BSIs were identified. Environmental samples were collected to detect B. cereus contamination. We also characterised the clinical presentation of B. cereus BSI through analyses of risk factors for BSI and mortality. A total of 143 clinical B. cereus isolates was detected. Fifty-one patients with nosocomial infections were diagnosed as B. cereus BSI, and 37 had contaminated blood cultures. The number of B. cereus isolates and BSI patients was significantly greater from June to September than from January to April (3.4 vs. 1.0 per month and 1.4 vs. 0.2, respectively). All BSIs were nosocomial and related to central or peripheral vascular catheter. Urinary catheter [odds ratio (OR) 6.93, 95 % confidence interval (CI) 2.40-20.0] was the independent risk factor associated with BSI patients when compared to patients regarded as contaminated. In-hospital mortality among BSI patients was 20 % and was associated with urinary catheter (OR 12.3, 95 % CI 0.67-225, p=0.045) and higher Charlson index (OR 1.99, 95 % CI 1.26-3.12). The number of B. cereus isolates and BSI increased during summer. Inpatients with indwelling vascular or urinary catheters should be carefully monitored for potential B. cereus BSIs.
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Affiliation(s)
- K Kato
- Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Y Matsumura
- Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - M Yamamoto
- Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - M Nagao
- Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Y Ito
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - S Takakura
- Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - S Ichiyama
- Department of Clinical Laboratory Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
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202
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Yamamoto A, Usami T, Kondo E, Kato K, Umayahara K. A case report of benign metastasizing leiomyoma of the lung: FDG-PET-CT findings and the utility of uterine needle biopsy. EUR J GYNAECOL ONCOL 2016; 37:568-571. [PMID: 29894087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Benign metastasizing leiomyoma (BML) is a rare condition that affects other organs out of the uterus. Recently, a few case reports in which 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) has been used to distinguish the malignancy have been published. Here, the authors present a case of BML with metabolic activity on PET, in which needle biopsy of the uterus was efficient to make diagnosis.
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203
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Huang J, Shibata E, Kato K, Asaeda N, Takeuchi Y. Chronic Exposure to n-Hexane Induces Changes in Nerve-Specific Marker Proteins in the Distal Peripheral Nerve of the Rat. Hum Exp Toxicol 2016; 11:323-7. [PMID: 1358145 DOI: 10.1177/096032719201100504] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
1 After long-term n-hexane exposure (2000 ppm, 12 h d-1, 6 d week-1, for 24 weeks), the content of neuron-specific enolase (gamma-enolase), creatine kinase-B and beta-S100 protein in the cortex, cerebellum, spinal cord and proximal and distal sciatic nerves of rats was determined by enzyme immunoassay. 2 The amounts of the three proteins decreased significantly in the distal segment of sciatic nerve, whereas they remained unchanged in the brain and proximal sciatic nerve. The quantitative decline in these marker proteins in the distal sciatic nerve could be related to neurophysiological deficits in the peripheral nerves. 3 This study indicates that the biochemical changes observed are consistent with the clinical and pathological findings of n-hexane neuropathy. These nerve-specific marker proteins can be used to assess solvent-related peripheral neurotoxicity.
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Affiliation(s)
- J Huang
- Department of Hygiene, Nagoya University School of Medicine, Japan
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204
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Kato K, Hasegawa Y, Iwata K, Ichikawa T, Yahara T, Tsuji S, Sugiura M, Yamaguchi JI. Recommendation to Exclude Bile-Duct-Cannulated Rats with Hyperbilirubinemia for Proper Conduct of Biliary Drug Excretion Studies. Drug Metab Dispos 2016; 44:1180-3. [DOI: 10.1124/dmd.116.070532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 05/18/2016] [Indexed: 11/22/2022] Open
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205
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Matsukawa Y, Kurosaka H, Kato K, Hayashi I, Minekawa K, Arakawa Y, Sawada S. Lansoprazole Increases Serum IgG and IgM in H. Pylori-Infected Patients. Int J Immunopathol Pharmacol 2016; 20:173-9. [PMID: 17346441 DOI: 10.1177/039463200702000120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Proton-pump inhibitors have been reported to influence the human immune system, we therefore evaluated the effect of lansoprazole, a proton-pump inhibitor, on humoral immunity. Patients with gastric ulcer received lansoprazole 30 mg/day for 8 weeks, and serum immunoglobulins were evaluated before and upon completion of the treatment. There were 79 patients with gastric ulcer; 51 were H. pylori-infected and 28 were H. pylori-uninfected. Eighteen patients positive for H. pylori were receiving at least one non-steroidal anti-inflammatory drug, and 12 patients negative for H. pylori received one non-steroidal anti-inflammatory drug. H. pylori-infected patients showed significant increases in serum immunoglobulins G and M 8 weeks after the start of lansoprazole treatment ( P<0.001 for IgG and P<005 for IgM), but uninfected patients did not. Even when H. pylori-infected patients receiving a non-steroidal anti-inflammatory drug or low-dose aspirin were analyzed separately, these increases were seen ( P<0.001 for IgG and P<0.005 for IgM). Lansoprazole elevated serum levels of immunoglobulins G and M in gastric ulcer patients with H. pylori infection, particularly in those receiving non-steroidal anti-inflammatory drugs. Deducing from these observations, lansoprazole might alter the Th1 shift in the immune response induced by H. pylori infection.
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Affiliation(s)
- Y Matsukawa
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan.
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206
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Zaha K, Matsumoto H, Itoh M, Saitsu H, Kato K, Kato M, Ogata S, Murayama K, Kishita Y, Mizuno Y, Kohda M, Nishino I, Ohtake A, Okazaki Y, Matsumoto N, Nonoyama S. DNM1L-related encephalopathy in infancy with Leigh syndrome-like phenotype and suppression-burst. Clin Genet 2016; 90:472-474. [PMID: 27301544 DOI: 10.1111/cge.12805] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/13/2016] [Accepted: 05/13/2016] [Indexed: 11/30/2022]
Affiliation(s)
- K Zaha
- Department of Pediatrics, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - H Matsumoto
- Department of Pediatrics, National Defense Medical College, Tokorozawa, Saitama, Japan.
| | - M Itoh
- Department of Mental Retardation and Birth Defect Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
| | - H Saitsu
- Department of human genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - K Kato
- Department of Laboratory Medicine, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - M Kato
- Department of Pediatrics, Yamagata University Faculty of Medicine, Yamagata, Yamagata, Japan
| | - S Ogata
- Department of Laboratory Medicine, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - K Murayama
- Department of Metabolism, Chiba Children's Hospital, Chiba, Japan
| | - Y Kishita
- Division of Functional Genomics & Systems Medicine, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan
| | - Y Mizuno
- Division of Functional Genomics & Systems Medicine, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan.,Division of Translational Research, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan
| | - M Kohda
- Division of Translational Research, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan
| | - I Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - A Ohtake
- Department of Pediatrics, Saitama Medical University, Saitama, Japan
| | - Y Okazaki
- Division of Functional Genomics & Systems Medicine, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan.,Division of Translational Research, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan
| | - N Matsumoto
- Department of human genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - S Nonoyama
- Department of Pediatrics, National Defense Medical College, Tokorozawa, Saitama, Japan
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207
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Takeuchi F, Ogasawara Y, Kato K, Sekizuka T, Nozaki T, Sugita-Konishi Y, Ohnishi T, Kuroda M. Genetic variants of Kudoa septempunctata (Myxozoa: Multivalvulida), a flounder parasite causing foodborne disease. J Fish Dis 2016; 39:667-672. [PMID: 26096292 DOI: 10.1111/jfd.12395] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 04/26/2015] [Accepted: 04/28/2015] [Indexed: 06/04/2023]
Abstract
Foodborne disease outbreaks caused by raw olive flounders (Paralichthys olivaceus) parasitized with Kudoa septempunctata have been reported in Japan. Origins of olive flounders consumed in Japan vary, being either domestic or imported, and aquaculture-raised or natural. Although it is unknown whether different sources are associated with different outcomes, it is desirable to identify whether this is the case by determining whether unique K. septempunctata strains occur and if so, whether some are associated with foodborne illness. We here developed an intraspecific genotyping method, using the sequence variation of mitochondrial genes. We collected olive flounder samples from foodborne disease outbreaks, domestic fish farms or quarantine offices and investigated whether K. septempunctata genotype is associated with pathogenicity or geographic origin. The 104 samples were classified into three genotypes, ST1, ST2 and ST3. Frequency of symptomatic cases differed by genotypes, but the association was not statistically significant. Whereas K. septempunctata detected from aquaculture-raised and natural fish from Japan were either ST1 or ST2, those from fish inspected at quarantine from Korea to Japan were ST3. Our method can be applied to phylogeographic analysis of K. septempunctata and contribute to containing the foodborne disease. The genotype database is hosted in the PubMLST website (http://pubmlst.org/kseptempunctata/).
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Affiliation(s)
- F Takeuchi
- Pathogen Genomics Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Y Ogasawara
- Pathogen Genomics Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - K Kato
- Pathogen Genomics Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - T Sekizuka
- Pathogen Genomics Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - T Nozaki
- Department of Parasitology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Y Sugita-Konishi
- Department of Food and Life Science, Azabu University, Sagamihara, Kanagawa, Japan
| | - T Ohnishi
- Division of Microbiology, National Institute of Health Sciences, Setagaya-ku, Tokyo, Japan
| | - M Kuroda
- Pathogen Genomics Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
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208
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Sekizawa O, Uruga T, Takagi Y, Nitta K, Kato K, Tanida H, Uesugi K, Hoshino M, Ikenaga E, Takeshita K, Takahashi S, Sano M, Aoyagi H, Watanabe A, Nariyama N, Ohashi H, Yumoto H, Koyama T, Senba Y, Takeuchi T, Furukawa Y, Ohata T, Matsushita T, Ishizawa Y, Kudo T, Kimura H, Yamazaki H, Tanaka T, Bizen T, Seike T, Goto S, Ohno H, Takata M, Kitamura H, Ishikawa T, Tada M, Yokoyama T, Iwasawa Y. SPring-8 BL36XU: Catalytic Reaction Dynamics for Fuel Cells. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/712/1/012142] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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209
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Imamura T, Kiyokawa N, Kato M, Imai C, Okamoto Y, Yano M, Ohki K, Yamashita Y, Kodama Y, Saito A, Mori M, Ishimaru S, Deguchi T, Hashii Y, Shimomura Y, Hori T, Kato K, Goto H, Ogawa C, Koh K, Taki T, Manabe A, Sato A, Kikuta A, Adachi S, Horibe K, Ohara A, Watanabe A, Kawano Y, Ishii E, Shimada H. Characterization of pediatric Philadelphia-negative B-cell precursor acute lymphoblastic leukemia with kinase fusions in Japan. Blood Cancer J 2016; 6:e419. [PMID: 27176795 PMCID: PMC4916297 DOI: 10.1038/bcj.2016.28] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 04/06/2016] [Indexed: 12/11/2022] Open
Abstract
Recent studies revealed that a substantial proportion of patients with high-risk B-cell precursor acute lymphoblastic leukemia (BCP-ALL) harbor fusions involving tyrosine kinase and cytokine receptors, such as ABL1, PDGFRB, JAK2 and CRLF2, which are targeted by tyrosine kinase inhibitors (TKIs). In the present study, transcriptome analysis or multiplex reverse transcriptase–PCR analysis of 373 BCP-ALL patients without recurrent genetic abnormalities identified 29 patients with kinase fusions. Clinically, male predominance (male/female: 22/7), older age at onset (mean age at onset: 8.8 years) and a high white blood cell count at diagnosis (mean: 94 200/μl) reflected the predominance of National Cancer Institute high-risk (NCI-HR) patients (NCI-standard risk/HR: 8/21). Genetic analysis identified three patients with ABL1 rearrangements, eight with PDGFRB rearrangements, two with JAK2 rearrangements, three with IgH-EPOR and one with NCOR1-LYN. Of the 14 patients with CRLF2 rearrangements, two harbored IgH-EPOR and PDGFRB rearrangements. IKZF1 deletion was present in 16 of the 22 patients. The 5-year event-free and overall survival rates were 48.6±9.7% and 73.5±8.6%, respectively. The outcome was not satisfactory without sophisticated minimal residual disease-based stratification. Furthermore, the efficacy of TKIs combined with conventional chemotherapy without allogeneic hematopoietic stem cell transplantation in this cohort should be determined.
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Affiliation(s)
- T Imamura
- Department of Pediatrics, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - N Kiyokawa
- Department of Pediatric Hematology and Oncology Research, National Research Institute for Child Health and Development, Tokyo, Japan
| | - M Kato
- Department of Pediatrics, The University of Tokyo, Tokyo, Japan
| | - C Imai
- Division of Pediatrics, Department of Homeostatic Regulation and Development, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Y Okamoto
- Department of Pediatrics, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - M Yano
- Department of Pediatrics, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - K Ohki
- Department of Hematology/Oncology, Gunma Children's Medical Center, Shibukawa, Japan
| | - Y Yamashita
- National Hospital Organization Nagoya Medical Center, Clinical Research Center, Nagoya, Japan
| | - Y Kodama
- Department of Pediatrics, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - A Saito
- Department of Hematology and Oncology, Hyogo Prefectural Children's Hospital, Kobe, Japan
| | - M Mori
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - S Ishimaru
- Department of Hematology/Oncology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - T Deguchi
- Department of Pediatrics, Mie University, Tsu, Japan
| | - Y Hashii
- Department of Pediatrics, Osaka University, Osaka, Japan
| | - Y Shimomura
- Department of Pediatrics, Aichi Medical University School of Medicine, Nagakute, Japan
| | - T Hori
- Department of Pediatrics, Aichi Medical University School of Medicine, Nagakute, Japan
| | - K Kato
- Division of Pediatric Hematology/Oncology, Ibaraki Children's Hospital, Mito, Japan
| | - H Goto
- Division of Hemato-Oncology and Regenerative Medicine, Kanagawa Children's Medical Center, Yokohama, Japan
| | - C Ogawa
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - K Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - T Taki
- Department of Molecular Diagnostics and Therapeutics, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - A Manabe
- Department of Pediatrics, St Luke's International Hospital, Tokyo, Japan
| | - A Sato
- Department of Hematology and Oncology, Miyagi Children's Hospital, Sendai, Japan
| | - A Kikuta
- Department of Pediatrics, Fukushima Medical School, Fukushima, Japan
| | - S Adachi
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - K Horibe
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - A Ohara
- Department of Pediatrics, Toho University, Tokyo, Japan
| | - A Watanabe
- Department of Pediatrics, Nakadori General Hospital, Akita, Japan
| | - Y Kawano
- Department of Pediatrics, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - E Ishii
- Department of Pediatrics, Ehime University Graduate School of Medicine, Toon, Japan
| | - H Shimada
- Department of Pediatrics, School of Medicine, Keio University School of Medicine, Tokyo, Japan
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210
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Hirose A, Terauchi M, Akiyoshi M, Owa Y, Kato K, Kubota T. Subjective insomnia is associated with low sleep efficiency and fatigue in middle-aged women. Climacteric 2016; 19:369-74. [PMID: 27175855 DOI: 10.1080/13697137.2016.1186160] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVES Many middle-aged women are affected by sleep disturbance. We investigated how subjective insomnia is associated with objective sleep parameters and other background characteristics. METHODS This cross-sectional study used baseline data obtained from 95 women aged 40-59 years who participated in another study assessing the effects of a dietary supplement. Participants wore an actigraph unit for 3 days to collect information concerning physical activities and objective sleep parameters and were then evaluated for body composition, cardiovascular parameters, and menopausal symptoms including insomnia and fatigue, and lifestyle factors. Stratifying Athens Insomnia Scale scores as low (0-5 points, control group) and high (≥ 6 points, subjective insomnia group), we sought to identify the parameters that are independently associated with subjective insomnia. RESULTS Women with subjective insomnia (n = 30) had lower sleep efficiency than did the controls. They were also older; had more live births, lower height, higher body mass index, lower ankle brachial index, and more severe menopausal symptoms including fatigue; took more naps; smoked more cigarettes; and more of them were full-time workers. Multivariate logistic regression analysis revealed that low sleep efficiency (adjusted odds ratio, 1.44 per 1% decrease in sleep efficiency; 95% confidence interval 1.06-2.05) and fatigue assessed with Brief Fatigue Inventory (BFI) (adjusted odds ratio, 1.57 per 1-point increase in BFI score; 95% confidence interval 1.19-2.13) were independent contributors to subjective insomnia. CONCLUSIONS Low sleep efficiency and feeling of fatigue were found to be independently associated with subjective insomnia in middle-aged women.
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Affiliation(s)
- A Hirose
- a Department of Obstetrics and Gynecology , Tokyo Medical and Dental University , Tokyo , Japan ;,b Department of Women's Health , Tokyo Medical and Dental University , Tokyo , Japan
| | - M Terauchi
- b Department of Women's Health , Tokyo Medical and Dental University , Tokyo , Japan
| | - M Akiyoshi
- a Department of Obstetrics and Gynecology , Tokyo Medical and Dental University , Tokyo , Japan
| | - Y Owa
- a Department of Obstetrics and Gynecology , Tokyo Medical and Dental University , Tokyo , Japan
| | - K Kato
- a Department of Obstetrics and Gynecology , Tokyo Medical and Dental University , Tokyo , Japan
| | - T Kubota
- a Department of Obstetrics and Gynecology , Tokyo Medical and Dental University , Tokyo , Japan
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211
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Tsujimura K, Yamamoto A, Miyazawa M, Harada T, Bannai H, Nemoto M, Yamanaka T, Ozawa M, Kato K, Kondo T. Application of ORF68-based grouping to an epidemiological survey of epidemic abortions caused by equine herpesvirus type 1. J Equine Vet Sci 2016. [DOI: 10.1016/j.jevs.2016.02.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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212
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Harada K, Aoki T, Kato K, Kawamura H, Inoue T, Aoki T, Uchiyama A, Sakamoto K, Ito S, Itoh M, Hayamizu T, Hatakeyama A, Hatanaka K, Wakasa T, Sakemi Y. Development of a Magneto-Optical Trap System of Francium Atoms for the Electron Electric-Dipole-Moment Search. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/691/1/012017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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213
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Harada K, Aoki T, Ezure S, Kato K, Hayamizu T, Kawamura H, Inoue T, Arikawa H, Ishikawa T, Aoki T, Uchiyama A, Sakamoto K, Ito S, Itoh M, Ando S, Hatakeyama A, Hatanaka K, Imai K, Murakami T, Nataraj HS, Shimizu Y, Sato T, Wakasa T, Yoshida HP, Sakemi Y. Laser frequency locking with 46 GHz offset using an electro-optic modulator for magneto-optical trapping of francium atoms. Appl Opt 2016; 55:1164-1169. [PMID: 26906392 DOI: 10.1364/ao.55.001164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We demonstrate frequency offset locking between two laser sources using a waveguide-type electro-optic modulator (EOM) with 10th-order sidebands for magneto-optical trapping of Fr atoms. The frequency locking error signal was successfully obtained by performing delayed self-homodyne detection of the beat signal between the repumping frequency and the 10th-order sideband component of the trapping light. Sweeping the trapping-light and repumping-light frequencies with keeping its frequency difference of 46 GHz was confirmed over 1 GHz by monitoring the Doppler absorption profile of I₂. This technique enables us to search for a resonance frequency of magneto-optical trapping of Fr.
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214
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Kawamura H, Ando S, Aoki T, Arikawa H, Harada K, Hayamizu T, Inoue T, Ishikawa T, Itoh M, Kato K, Köhler L, Sakamoto K, Uchiyama A, Sakemi Y. Transportation of a radioactive ion beam for precise laser-trapping experiments. Rev Sci Instrum 2016; 87:02B921. [PMID: 26932093 DOI: 10.1063/1.4935013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Francium is the heaviest species among the alkali elements. Due to its properties, francium is said to be of advantage in measurements of tiny observations, such as atomic parity violation and electric dipole moment. Before executing experiments with francium, it must be produced artificially because it is one of the most unstable elements. We produced francium with the nuclear fusion reaction of an oxygen beam and gold target, ionized the produced francium through a thermal ionization process, and extracted the ion with electrostatic fields. However, the thermal ionization process is known to ionize not only an objective atom but also other atomic species. Therefore, a Wien filter was installed to analyze the composition of the ion beam and purify the beam. This allowed us to improve the beam purity from ∼10(-6) to ∼10(-3).
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Affiliation(s)
- Hirokazu Kawamura
- Frontier Research Institute for Interdisciplinary Sciences (FRIS), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - S Ando
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - T Aoki
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - H Arikawa
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - K Harada
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - T Hayamizu
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - T Inoue
- Frontier Research Institute for Interdisciplinary Sciences (FRIS), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - T Ishikawa
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - M Itoh
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - K Kato
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - L Köhler
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - K Sakamoto
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - A Uchiyama
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Y Sakemi
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
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Kinemuchi Y, Nakano H, Kato K, Ozaki K, Kobayashi K. Decoupling grain growth from densification during sintering of oxide nanoparticles. RSC Adv 2016. [DOI: 10.1039/c5ra27844a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Unique shrinkage mode of oxide nanoparticles enables densification without grain growth.
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Affiliation(s)
- Y. Kinemuchi
- Inorganic Functional Materials Research Institute
- National Institute of Advanced Industrial Science and Technology (AIST)
- Nagoya 463-8560
- Japan
| | - H. Nakano
- Cooperative Research Facility Center
- Toyohashi University of Technology
- Toyohashi 441-8580
- Japan
| | - K. Kato
- Inorganic Functional Materials Research Institute
- National Institute of Advanced Industrial Science and Technology (AIST)
- Nagoya 463-8560
- Japan
| | - K. Ozaki
- Inorganic Functional Materials Research Institute
- National Institute of Advanced Industrial Science and Technology (AIST)
- Nagoya 463-8560
- Japan
| | - K. Kobayashi
- Structural Materials Research Institute
- National Institute of Advanced Industrial Science and Technology (AIST)
- Nagoya 463-8560
- Japan
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216
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Harada J, Inoue T, Kato K, Izumoto H, Zhang X, Sakuragi H, Wu D, Ietsugu H, Sugawara Y. Long-term nitrogen compound removal trends of a hybrid subsurface constructed wetland treating milking parlor wastewater throughout its 7 years of operation. Water Sci Technol 2016; 73:1018-1024. [PMID: 26942522 DOI: 10.2166/wst.2015.568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study evaluated the nitrogen compound removal efficiency of a hybrid subsurface constructed wetland, which began treating milking parlor wastewater in Hokkaido, northern Japan, in 2006. The wetland's overall removal rates of total nitrogen (TN) and ammonium (NH4(+)-N) improved after the second year of operation, and its rate of organic nitrogen (Org-N) removal was stable at 90% efficiency. Only nitrate (NO3(-)-N) levels were increased following the treatment. Despite increased NO3(-)-N (maximum of 3 mg-N/L) levels, TN removal rates were only slightly affected. Removal rates of TN and Org-N were highest in the first vertical bed. NH4(+)-N removal rates were highest in the second vertical bed, presumably due to water recirculation and pH adjustment. Concentrations of NO3(-)-N appeared when total carbon (TC) levels were low, which suggests that low TC prevented complete denitrification in the second vertical bed and the final horizontal bed. In practice, the beds removed more nitrogen than the amount theoretically removed by denitrification, as calculated by the amount of carbon removed from the system. This carbon-nitrogen imbalance may be due to other nitrogen transformation mechanisms, which require less carbon.
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Affiliation(s)
- J Harada
- Graduate School of Agriculture, Hokkaido University, N9W9, Kita-ku, Sapporo, Hokkaido, 060-8589, Japan E-mail:
| | - T Inoue
- Graduate School of Agriculture, Hokkaido University, N9W9, Kita-ku, Sapporo, Hokkaido, 060-8589, Japan E-mail:
| | - K Kato
- NARO Tohoku Agricultural Research Center, Shimo-Kuriyagawa, Morioka, Iwate, 020-0198, Japan
| | - H Izumoto
- Graduate School of Agriculture, Hokkaido University, N9W9, Kita-ku, Sapporo, Hokkaido, 060-8589, Japan E-mail:
| | - X Zhang
- Graduate School of Agriculture, Hokkaido University, N9W9, Kita-ku, Sapporo, Hokkaido, 060-8589, Japan E-mail:
| | - H Sakuragi
- Graduate School of Agriculture, Hokkaido University, N9W9, Kita-ku, Sapporo, Hokkaido, 060-8589, Japan E-mail:
| | - D Wu
- Graduate School of Agriculture, Hokkaido University, N9W9, Kita-ku, Sapporo, Hokkaido, 060-8589, Japan E-mail:
| | - H Ietsugu
- TUSK Co., Ltd, 2-8, Midorimachi-minami, Nakashibetsu-cho, Hokkaido, 086-1166, Japan
| | - Y Sugawara
- NARO Hokkaido Agricultural Research Center, Hitsujigaoka-1, Toyohira-ku, Sapporo, Hokkaido, 062-8555, Japan
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217
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Zhang X, Inoue T, Kato K, Harada J, Izumoto H, Wu D, Sakuragi H, Ietsugu H, Sugawara Y. Performance of hybrid subsurface constructed wetland system for piggery wastewater treatment. Water Sci Technol 2016; 73:13-20. [PMID: 26744930 DOI: 10.2166/wst.2015.457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The objective of this study was to evaluate performance of a hybrid constructed wetland (CW) built for high organic content piggery wastewater treatment in a cold region. The system consists of four vertical and one horizontal flow subsurface CWs. The wetland was built in 2009 and water quality was monitored from the outset. Average purification efficiency of this system was 95±5, 91±7, 89±8, 70±10, 84±15, 90±6, 99±2, and 93±16% for biochemical oxygen demand (BOD5), chemical oxygen demand (COD), total carbon (TC), total nitrogen (TN), ammonium-N (NH4-N), total phosphorus (TP), total coliform (T. Coliform), and suspended solids (SS), respectively during August 2010-December 2013. Pollutant removal rate was 15±18 g m(-2) d(-1), 49±52 g m(-2) d(-1), 6±4 g m(-2) d(-1), 7±5 g m(-2) d(-1), and 1±1 g m(-2) d(-1) for BOD5, COD, TN, NH4-N, and TP, respectively. The removal efficiency of BOD5, COD, NH4-N, and SS improved yearly since the start of operation. With respect to removal of TN and TP, efficiency improved in the first three years but slightly declined in the fourth year. The system performed well during both warm and cold periods, but was more efficient in the warm period. The nitrate increase may be attributed to a low C/N ratio, due to limited availability of carbon required for denitrification.
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Affiliation(s)
- X Zhang
- Graduate School of Agriculture, Hokkaido University, N9W9, Kita-ku, Sapporo, Hokkaido 060-8589, Japan E-mail:
| | - T Inoue
- Graduate School of Agriculture, Hokkaido University, N9W9, Kita-ku, Sapporo, Hokkaido 060-8589, Japan E-mail:
| | - K Kato
- NARO Tohoku Agricultural Research Center, Shimo-Kuriyagawa, Morioka, Iwate 020-0198, Japan
| | - J Harada
- Graduate School of Agriculture, Hokkaido University, N9W9, Kita-ku, Sapporo, Hokkaido 060-8589, Japan E-mail:
| | - H Izumoto
- Graduate School of Agriculture, Hokkaido University, N9W9, Kita-ku, Sapporo, Hokkaido 060-8589, Japan E-mail:
| | - D Wu
- Graduate School of Agriculture, Hokkaido University, N9W9, Kita-ku, Sapporo, Hokkaido 060-8589, Japan E-mail:
| | - H Sakuragi
- Graduate School of Agriculture, Hokkaido University, N9W9, Kita-ku, Sapporo, Hokkaido 060-8589, Japan E-mail:
| | - H Ietsugu
- TUSK Co., Ltd, 2-8, Midorimachi-minami, Nakashibetsu-cho, Hokkaido 086-1166, Japan
| | - Y Sugawara
- NARO Hokkaido Agricultural Research Center, Hitsujigaoka-1, Toyohira-ku, Sapporo, Hokkaido 062-8555, Japan
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Imai T, Sato I, Matsumoto K, Asada Y, Kato K, Sogai S, Watanabe K, Sadayasu R, Saijo S, Matsuura K. Human papilloma virus detection in oropharyngeal cancer with gargle samples. B-ENT 2016; 12:263-269. [PMID: 29709129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
UNLABELLED Human papilloma virus detection in oropharyngeal cancer with gargle samples. OBJECTIVE human papilloma virus (HPV) is a major risk factor for oropharyngeal squamous cell carcinoma (OPSCC) and knowledge of a patient's HPV status is clinically important in terms of treatment and prognosis. The practicality of using oral gargle samples to reliably detect HPV in patients with OPSCC remains unclear. Therefore, we evaluated the feasibility of HPV detection in gargle samples of OPSCC patients using an HPV-dedicated nucleic acid amplification test (cobas 4800 HPV Test; Roche Diagnostics K.K.). METHODOLOGY 15 patients with histologically proven OPSCC were evaluated from May 2014 to March 2015. Swab sam- ples served as positive controls and were tested using both the Hybrid Capture II HPV Test (HC-II; Digene Corporation) and the cobas 4800 HPV Test. Oral gargle samples were tested using the cobas 4800 HPV Test. Five of the 15 patients were confirmed to be HPV-positive by a combination of p16 immunohistochemistry, HPV-DNA in situ hybridization and nucleic acid amplification. RESULTS the sensitivity and specificity of the gargling method were 60% and 100%, respectively. No false-positives were obtained. Detection of HPV in two very small tumours rising from the base of the tongue was difficult and these cases were overlooked as HPV-negative. CONCLUSIONS use of the gargling method to determine HPV positivity in OPSCC patients appears feasible, except in patients with very small tumours. Real-time polymerase chain reaction using gargle samples may have greater clinical efficacy than the swabbing method.
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Arima Y, Namiki T, Ueno M, Kato K, Tokoro S, Takayama K, Miura K, Yokozeki H. Histiocytoid Sweet syndrome: a novel association with relapsing polychondritis. Br J Dermatol 2015; 174:691-4. [DOI: 10.1111/bjd.14229] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Y. Arima
- Department of Dermatology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; 1-5-45, Yushima Bunkyo-ku Tokyo 113-8510 Japan
| | - T. Namiki
- Department of Dermatology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; 1-5-45, Yushima Bunkyo-ku Tokyo 113-8510 Japan
| | - M. Ueno
- Department of Dermatology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; 1-5-45, Yushima Bunkyo-ku Tokyo 113-8510 Japan
| | - K. Kato
- Department of Dermatology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; 1-5-45, Yushima Bunkyo-ku Tokyo 113-8510 Japan
| | - S. Tokoro
- Department of Dermatology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; 1-5-45, Yushima Bunkyo-ku Tokyo 113-8510 Japan
| | - K. Takayama
- Department of Dermatology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; 1-5-45, Yushima Bunkyo-ku Tokyo 113-8510 Japan
| | - K. Miura
- Department of Pathology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; 1-5-45, Yushima Bunkyo-ku Tokyo 113-8510 Japan
| | - H. Yokozeki
- Department of Dermatology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; 1-5-45, Yushima Bunkyo-ku Tokyo 113-8510 Japan
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Nomura H, Takahashi A, Usami T, Matoda M, Kanao H, Kondo E, Omatsu K, Kato K, Takazawa Y, Takeshima N. 283P Clinicopathological features of primary malignant melanoma of the vagina. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv525.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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221
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Dazai M, Yuki S, Muranaka T, Yoshida S, Ohta Y, Hatanaka K, Tsuji Y, Ohta T, Sato A, Eto K, Onodera K, Sato Y, Kato K, Nakamura M, Muto O, Ishiguro A, Tateyama M, Okuda H, Sakata Y, Komatsu Y. 158P A retrospective cohort study evaluating the safety and efficacy of regorafenib in patients with metastatic colorectal cancer; The HGCSG1401 study -first report. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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222
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Komatsu Y, Yuki S, Nakatsumi H, Sawada K, Hatanaka K, Kato T, Meguro T, Nakamura M, Iwanaga I, Uebayashi M, Tateyama M, Eto K, Kudo M, Kato K, Okuda H, Sogabe S, Miyagishima T, Miyashita K, Sakamoto N, Sakata Y. 172P Updated analysis: observational cohort study of 1st line bevacizumab combined with chemotherapy in metastatic colorectal cancer (HGCSG0802): Comparison of infusional FU/oxaliplatin (OX) + BV and oral FU/OX + BV. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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223
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Jin K, Nakamura M, Kato K, Kitazawa Y, Kakisaka Y, Iwasaki M, Nakasato N. Three patients with extra-temporal lobe epilepsy having seizures during REM sleep. Sleep Med 2015. [DOI: 10.1016/j.sleep.2015.02.1402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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224
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Hayashi Y, Watanabe T, Aoki A, Ishiguro S, Ueda M, Akiyama K, Kato K, Inoue Y, Tsuchimine S, Yasui-Furukori N, Shimoda K. Factors Affecting Steady-state Plasma Concentrations of Enantiomeric Mirtazapine and its Desmethylated Metabolites in Japanese Psychiatric Patients. Pharmacopsychiatry 2015; 48:279-85. [DOI: 10.1055/s-0035-1565069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Y. Hayashi
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Kitakobayashi, Mibu-machi, Shimotsuga, Tochigi, Japan
| | - T. Watanabe
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Kitakobayashi, Mibu-machi, Shimotsuga, Tochigi, Japan
| | - A. Aoki
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Kitakobayashi, Mibu-machi, Shimotsuga, Tochigi, Japan
| | - S. Ishiguro
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Kitakobayashi, Mibu-machi, Shimotsuga, Tochigi, Japan
| | - M. Ueda
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Kitakobayashi, Mibu-machi, Shimotsuga, Tochigi, Japan
| | - K. Akiyama
- Department of Biological Psychiatry and Neuroscience, Dokkyo Medical University School of Medicine, Kitakobayashi, Mibu-machi, Shimotsuga, Tochigi, Japan
| | - K. Kato
- Sakura La Mental Clinic, Youtou, Utsunomiya, Tochigi, Japan
| | - Y. Inoue
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Kitakobayashi, Mibu-machi, Shimotsuga, Tochigi, Japan
| | - S. Tsuchimine
- Department of Neuropsychiatry, Hirosaki University Graduate School of Medicine, Zaifucho, Hirosaki, Aomori, Japan
| | - N. Yasui-Furukori
- Department of Neuropsychiatry, Hirosaki University Graduate School of Medicine, Zaifucho, Hirosaki, Aomori, Japan
| | - K. Shimoda
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Kitakobayashi, Mibu-machi, Shimotsuga, Tochigi, Japan
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Kamiya A, Inokuchi M, Otsuki S, Sugita H, Kato K, Uetake H, Sugihara K, Takagi Y, Kojima K. Prognostic value of tropomyosin-related kinases A, B, and C in gastric cancer. Clin Transl Oncol 2015; 18:599-607. [PMID: 26459250 DOI: 10.1007/s12094-015-1407-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 09/03/2015] [Indexed: 01/01/2023]
Abstract
PURPOSE Tropomyosin-related kinase (Trk) receptors play critical roles in tumor development and are considered attractive targets for cancer therapy. We investigated correlations of the expression of TrkA, TrkB, and TrkC with clinicopathological features and outcomes in gastric cancer. METHODS Tumor samples were obtained from 221 patients with gastric cancer who underwent gastrectomy between 2003 and 2007. The expression of TrkA, TrkB, and TrkC was analyzed using immunohistochemical staining. The relationship of their expression to clinicopathological factors and outcomes was assessed. RESULTS High expression of TrkA, TrkB, or TrkC was significantly associated with histopathology (p = 0.022, p < 0.001, and p < 0.001). High expression of TrkA was significantly correlated with variables related to tumor progression, including lymph node metastasis (p = 0.024) and distant metastasis or recurrence (p < 0.001). Distant metastasis or recurrence was found in a significantly higher proportion of patients with high expression of TrkC than in those with low expression (p = 0.036). High expression of TrkA was significantly associated with poorer relapse-free survival (RFS) in univariate analysis (p = 0.001). High expression of TrkA or TrkC was significantly associated with poorer disease-specific survival (DSS) in univariate analysis (p < 0.001 and p = 0.008). In multivariate analysis, TrkA was an independent predictor of RFS [hazard ratio (HR), 2.294; 95 % confidence interval (CI), 1.309-4.032; p = 0.004] and DSS (HR, 2.146; 95 % CI, 1.195-3.861; p = 0.011). Expression of TrkB was not associated with RFS or DSS in univariate analysis. CONCLUSIONS Our results demonstrated that TrkA expression was associated with tumor progression and poor survival, and was an independent predictor of poor outcomes in gastric cancer patients.
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Affiliation(s)
- A Kamiya
- Department of Surgical Oncology, Tokyo Medical and Dental University Graduate School, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
| | - M Inokuchi
- Department of Surgical Oncology, Tokyo Medical and Dental University Graduate School, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - S Otsuki
- Department of Surgical Oncology, Tokyo Medical and Dental University Graduate School, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - H Sugita
- Department of Surgical Oncology, Tokyo Medical and Dental University Graduate School, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - K Kato
- Department of Surgical Oncology, Tokyo Medical and Dental University Graduate School, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - H Uetake
- Department of Surgical Oncology, Tokyo Medical and Dental University Graduate School, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - K Sugihara
- Department of Surgical Oncology, Tokyo Medical and Dental University Graduate School, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Y Takagi
- Department of Translational Oncology, Tokyo Medical and Dental University Graduate School, Tokyo, Japan
| | - K Kojima
- Center for Minimally Invasive Surgery, Tokyo Medical and Dental University Graduate School, Tokyo, Japan
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226
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Ito C, Mukudai Y, Kato K, Motohashi H, Kondo S, Shirota T. Tumour protein D52 and D54 have opposite effects on terminal differentiation of chondrocytes. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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227
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Kato K, Mukudai Y, Motohashi H, Ito C, Kondo S, Shirota T. The opposite effects between tumor protein D52 and D54 on anchorage-independent proliferation of squamous cell carcinoma cells. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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228
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Motohashi H, Mukudai Y, Ito C, Kato K, Kondo S, Shirota T. The 3′-UTR of TPD family mRNA is post-transcriptional regulation on its gene expression. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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229
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Tada K, Shoji H, Kitano S, Nishimura T, Shimada Y, Nagashima K, Ito A, Honma Y, Iwasa S, Okita N, Takashima A, Kato K, Yamada Y, Katayama N, Boku N, Heike Y, Hamaguchi T. 406 Identification of an immunological prognostic factor for metastatic colorectal cancer patients treated with first-line oxaliplatin-based chemotherapy. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30240-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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230
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Shoji H, Heike Y, Tada K, Kitano S, Nishimura T, Shimada Y, Nagashima K, Ito A, Honma Y, Iwasa S, Okita N, Takashima A, Kato K, Yamada Y, Boku N, Hamaguchi T. 2386 Association between the peripheral immune status of granulocytic myeloid-derived suppressor cells and progression-free survival chemotherapy. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31302-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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231
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Fujioka J, Doi A, Okuyama D, Morikawa D, Arima T, Okada KN, Kaneko Y, Fukuda T, Uchiyama H, Ishikawa D, Baron AQR, Kato K, Takata M, Tokura Y. Ferroelectric-like metallic state in electron doped BaTiO3. Sci Rep 2015; 5:13207. [PMID: 26289749 PMCID: PMC4542543 DOI: 10.1038/srep13207] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 07/16/2015] [Indexed: 12/05/2022] Open
Abstract
We report that a ferroelectric-like metallic state with reduced anisotropy of polarization is created by the doping of conduction electrons into BaTiO3, on the bases of x-ray/electron diffraction and infrared spectroscopic experiments. The crystal structure is heterogeneous in nanometer-scale, as enabled by the reduced polarization anisotropy. The enhanced infrared intensity of soft phonon along with the resistivity reduction suggests the presence of unusual electron-phonon coupling, which may be responsible for the emergent ferroelectric structure compatible with metallic state.
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Affiliation(s)
- J. Fujioka
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Hongo, Tokyo 113-8656, Japan
| | - A. Doi
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Hongo, Tokyo 113-8656, Japan
| | - D. Okuyama
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - D. Morikawa
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - T. Arima
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- Department of Advanced Materials Science, University of Tokyo, Kashiwa 227-8561 Japan
| | - K. N. Okada
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Hongo, Tokyo 113-8656, Japan
| | - Y. Kaneko
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - T. Fukuda
- Syncrotron Radiation Research Unit, JAEA/SPring-8, Sayo, Hyogo 679-5148, Japan
- Materials Dynamics Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - H. Uchiyama
- Materials Dynamics Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Research and Utilization Division, JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan
| | - D. Ishikawa
- Materials Dynamics Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Research and Utilization Division, JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan
| | - A. Q. R. Baron
- Materials Dynamics Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Research and Utilization Division, JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan
| | - K. Kato
- Structural Materials Science Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - M. Takata
- Structural Materials Science Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - Y. Tokura
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Hongo, Tokyo 113-8656, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
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Kudo K, Muramatsu H, Yoshida N, Kobayashi R, Yabe H, Tabuchi K, Kato K, Koh K, Takahashi Y, Hashii Y, Kawano Y, Inoue M, Cho Y, Sakamaki H, Kawa K, Kato K, Suzuki R, Kojima S. Second allogeneic hematopoietic stem cell transplantation in children with severe aplastic anemia. Bone Marrow Transplant 2015; 50:1312-5. [PMID: 26121106 DOI: 10.1038/bmt.2015.153] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 04/27/2015] [Accepted: 05/15/2015] [Indexed: 11/09/2022]
Abstract
The outcome of 55 children with severe aplastic anemia (SAA) who received a second hematopoietic stem cell transplantation (HSCT) was retrospectively analyzed using the registration data of the Japanese Society for Hematopoietic Cell Transplantation. The 5-year overall survival (OS) and failure-free survival (FFS) after the second transplantation were 82.9% (95% confidence interval (CI), 69.7-90.8)) and 81.2% (95% CI, 67.8-89.4), respectively. FFS was significantly better when the interval between the first and second transplantation was >60 days (88.9%; 95% CI, 73.0-95.7) than when it was ⩽60 days (61.4%; 95% CI, 33.3-80.5; P=0.026). All 12 patients who were conditioned with regimens containing fludarabine and melphalan were alive with hematopoietic recovery. These findings justify the recommendation of a second HSCT for children with SAA who have experienced graft failure after first HSCT.
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Affiliation(s)
- K Kudo
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
| | - H Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Yoshida
- Division of Pediatric Hematology/Oncology, Children's Medical Center, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - R Kobayashi
- Department of Pediatrics, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - H Yabe
- Department of Cell Transplantation and Regeneration Medicine, Tokai University School of Medicine, Isehara, Japan
| | - K Tabuchi
- Division of Pediatrics, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - K Kato
- Division of Pediatric Hematology and Oncology, Ibaraki Children's Hospital, Mito, Japan
| | - K Koh
- Department of Hematology and Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Y Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Hashii
- Department of Pediatrics, Osaka University Hospital, Suita, Japan
| | - Y Kawano
- Department of Pediatrics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima City, Japan
| | - M Inoue
- Department of Hematology/Oncology, Osaka Medical Center and Research Institute for Maternal and Child Health, Izumi, Japan
| | - Y Cho
- Department of Pediatrics, Hokkaido University Hospital, Sapporo, Japan
| | - H Sakamaki
- Division of Hematology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - K Kawa
- Japanese Red Cross Kinki Block Blood Center, Ibaraki, Japan
| | - K Kato
- Division of Pediatric Hematology/Oncology, Children's Medical Center, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - R Suzuki
- Department of Hematopoietic Stem Cell Transplantation, Data Management and Biostatistics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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233
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Kataoka K, Nakamura K, Mizusawa J, Fukuda H, Igaki H, Ozawa S, Hayashi K, Kato K, Kitagawa Y, Ando N. Variations in survival and perioperative complications between hospitals based on data from two phase III clinical trials for oesophageal cancer. Br J Surg 2015; 102:1088-96. [PMID: 26095389 DOI: 10.1002/bjs.9839] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/27/2015] [Indexed: 02/05/2023]
Abstract
BACKGROUND Variations in institutional practice may contribute to different outcomes of cancer treatment. The impact of interinstitutional heterogeneity on outcomes between hospitals after oesophagectomy has not been examined previously using data from surgical clinical trials. METHODS The data from two phase III trials for oesophageal cancer were used. Japan Clinical Oncology Group (JCOG) 9204 involved oesophagectomy (92-OP) versus oesophagectomy plus postoperative chemotherapy (92-POST), with accrual from 1992 to 1997. JCOG9907 involved postoperative chemotherapy (99-POST) versus preoperative chemotherapy (99-PRE), with accrual from 2000 to 2006. Hospitals contributing fewer than three patients were excluded. The influence of time and preoperative chemotherapy on interinstitutional heterogeneity related to postoperative complications and 5-year overall survival were evaluated by comparisons within and between these trial groups. Heterogeneity was estimated by a mixed-effects model after adjusting for age, sex, performance status, location of the primary tumour and clinical stage. RESULTS Twelve hospitals in 92-OP (114 patients), 13 in 92-POST (114), 19 in 99-POST (158) and 18 in 99-PRE (154) were eligible. There was considerable heterogeneity in predicted postoperative complications in both groups in JCOG9204 (median 31.3 (range 15.0-68.2) per cent), and in 99-PRE (35.2 (22.6-46.6) per cent) but not in 99-POST (27.7 (27.7-27.7) per cent) from JCOG9907. A similar pattern was seen for predicted overall survival (92-POST: 66.4 (range 64.1-68.9) per cent; 99-PRE: 55.9 (54.0-59.7) per cent; 99-POST: 44.4 (44.4-44.4) per cent). CONCLUSION Interinstitutional heterogeneity regarding complications and survival after oesophagectomy is a problem that merits wider consideration.
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Affiliation(s)
- K Kataoka
- Japan Clinical Oncology Group (JCOG) Data Centre/Operations Office, Centre for Research Administration and Support, National Cancer Centre, Tokyo, Japan
| | - K Nakamura
- Japan Clinical Oncology Group (JCOG) Data Centre/Operations Office, Centre for Research Administration and Support, National Cancer Centre, Tokyo, Japan
| | - J Mizusawa
- Japan Clinical Oncology Group (JCOG) Data Centre/Operations Office, Centre for Research Administration and Support, National Cancer Centre, Tokyo, Japan
| | - H Fukuda
- Japan Clinical Oncology Group (JCOG) Data Centre/Operations Office, Centre for Research Administration and Support, National Cancer Centre, Tokyo, Japan
| | - H Igaki
- Oesophageal Surgery Division, National Cancer Centre Hospital, Tokyo, Japan
| | - S Ozawa
- Department of Gastrointestinal Surgery, Tokai University School of Medicine, Isehara, Japan
| | - K Hayashi
- Department of Chemotherapy and Palliative Care, Tokyo Women's Medical University, Tokyo, Japan
| | - K Kato
- Gastrointestinal Medical Oncology Division, National Cancer Centre Hospital, Tokyo, Japan
| | - Y Kitagawa
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - N Ando
- International Goodwill Hospital, Yokohama, Japan
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234
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Heianza Y, Kato K, Kodama S, Ohara N, Suzuki A, Tanaka S, Hanyu O, Sato K, Sone H. Risk of the development of Type 2 diabetes in relation to overall obesity, abdominal obesity and the clustering of metabolic abnormalities in Japanese individuals: does metabolically healthy overweight really exist? The Niigata Wellness Study. Diabet Med 2015; 32:665-72. [PMID: 25438871 DOI: 10.1111/dme.12646] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/25/2014] [Indexed: 12/26/2022]
Abstract
AIMS We investigated the risk of developing diabetes across various metabolic phenotypes by considering the presence of overall adiposity or abdominal adiposity and the number of metabolic abnormalities and aimed to clarify whether a 'healthy overweight' phenotype, that is, overweight with no metabolic abnormalities, was protective of the development of diabetes. METHODS We studied 29 564 Japanese individuals without diabetes. The 5-year incidence of diabetes was assessed according to a combination of either overweight (BMI ≥ 25.0 kg/m(2) ) or abdominal obesity (waist circumference ≥ 90 cm in men and ≥ 80 cm in women) and the number of metabolic factors present (hypertension, elevated triglyceride concentration, low HDL cholesterol concentration and impaired fasting glucose). RESULTS A total of 1188 individuals developed diabetes. Compared with normal weight individuals with none of the four metabolic abnormalities, in overweight individuals with none of the four abnormalities there was an odds ratio (OR) of 2.32 [95% confidence interval (CI) 1.50, 3.59] for diabetes; having any one metabolic abnormality increased the risk of developing diabetes among normal weight individuals [OR 3.23 (2.55, 4.10)] and overweight individuals [OR 5.00 (3.77, 6.63)]. Among overweight individuals, the presence of impaired fasting glucose alone substantially elevated the risk of diabetes by 8.98-fold (5.52, 14.6) in comparison with the absence of the four metabolic factors. CONCLUSIONS Being 'healthy overweight' was associated with a higher OR of developing future diabetes among Japanese individuals than normal weight individuals with no metabolic abnormalities, and being overweight with one or more abnormalities had a further elevated OR compared with 'healthy overweight' people.
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Affiliation(s)
- Y Heianza
- Department of Internal Medicine, Niigata University, Niigata, Japan
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235
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Ouchi M, Kato K, Suzuki S. The effect of pelvic floor muscle training on physical activity in patients with pelvic organ prolapse. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.2076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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236
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Kataoka K, Tsushima T, Mizusawa J, Hironaka S, Tsubosa Y, Kii T, Shibuya Y, Chin K, Katayama H, Kato K, Fukuda H, Kitagawa Y. A randomized controlled Phase III trial comparing 2-weekly docetaxel combined with cisplatin plus fluorouracil (2-weekly DCF) with cisplatin plus fluorouracil (CF) in patients with metastatic or recurrent esophageal cancer: rationale, design and methods of Japan Clinical Oncology Group study JCOG1314 (MIRACLE study). Jpn J Clin Oncol 2015; 45:494-498. [DOI: 10.1093/jjco/hyv012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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237
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Suzuki K, Kato K, Shikano M, Masuhara N. Epidemiological study for cataract in a northern area of Japan. Cataract and its subjective symptom. Dev Ophthalmol 2015; 21:41-5. [PMID: 1868947 DOI: 10.1159/000419932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- K Suzuki
- Department of Ophthalmology, Fukushima Medical College, Japan
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239
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Okita M, Yoshimura T, Nakano J, Watabe M, Nagai T, Kato K, Eguchi K. Effects of treadmill exercise on muscle fibers in mice with steroid myopathy. J Jpn Phys Ther Assoc 2015; 4:25-7. [PMID: 25792922 DOI: 10.1298/jjpta.4.25] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2000] [Accepted: 11/01/2000] [Indexed: 11/23/2022]
Abstract
We studied the effect of treadmill exercise on muscle fibers in mice with experimental steroid myopathy. Frozen sections of the extensor digitorum longus (EDL) and soleus (SOL) muscles were stained with hematoxylin-eosin, and the muscle fiber diameters measured. In the EDL, muscle fiber diameters in the steroid groups decreased significantly compared with those in the control groups; moreover, muscle fiber diameters in the exercise groups increased significantly compared with those in the non-exercise groups, whereas the diameters in the SOL did not differ. We speculate that treadmill exercise may prevent corticosteroid-induced muscle fiber atrophy.
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Affiliation(s)
- M Okita
- Department of Physical Therapy, School of Allied Medical Sciences, Nagasaki University, Nagasaki 852-8520, Japan
| | - T Yoshimura
- Department of Occupational Therapy, School of Allied Medical Sciences, Nagasaki University, Nagasaki 852-8520, Japan
| | - J Nakano
- Department of Health Science, Graduate School of Medical Science, Hiroshima University, Hiroshima 734-8551, Japan
| | - M Watabe
- Department of Physical Therapy, School of Allied Medical Sciences, Nagasaki University, Nagasaki 852-8520, Japan
| | - T Nagai
- Department of Rehabilitation, Yamashita Neuro Surgical Clinic, Fukuoka 830-0037, Japan
| | - K Kato
- Department of Physical Therapy, School of Allied Medical Sciences, Nagasaki University, Nagasaki 852-8520, Japan
| | - K Eguchi
- The First Department of Internal Medicine, Nagasaki University School of Medicine, Nagasaki 852-8501, Japan
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240
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Abstract
A simple molecular design based on the size of the cyclic components of polyrotaxanes achieved a significant variation of mechanical relaxation dynamics of polyrotaxane gels.
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Affiliation(s)
- K. Kato
- Department of Advanced Materials Science
- Graduate School of Frontier Sciences
- The University of Tokyo
- Kashiwa
- Japan
| | - K. Karube
- Department of Advanced Materials Science
- Graduate School of Frontier Sciences
- The University of Tokyo
- Kashiwa
- Japan
| | - N. Nakamura
- Department of Advanced Materials Science
- Graduate School of Frontier Sciences
- The University of Tokyo
- Kashiwa
- Japan
| | - K. Ito
- Department of Advanced Materials Science
- Graduate School of Frontier Sciences
- The University of Tokyo
- Kashiwa
- Japan
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241
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Nishida N, Yang X, Takasaki I, Imai K, Kato K, Inoue Y, Imamura T, Miyashita R, Kato F, Yamaide A, Mori M, Saito S, Hara J, Adachi Y, Miyawaki T, Kanegane H. Dysgammaglobulinemia Associated With Glu349del, a Hypomorphic XIAP Mutation. J Investig Allergol Clin Immunol 2015; 25:205-213. [PMID: 26182687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
BACKGROUND X-linked lymphoproliferative syndrome type 2 is a rare hereditary immunodeficiency caused by mutations in the XIAP gene. This immunodeficiency frequently results in hemophagocytic lymphohistiocytosis, although hypogammaglobulinemia and dysgammaglobulinemia are also common. OBJECTIVE We identified 17 patients from 12 Japanese families with mutations in XIAP. The Glu349del mutation was observed in 3 patients, each from a different family. Interestingly, these patients exhibited dysgammaglobulinemia but not hemophagocytic lymphohistiocytosis. We conducted an immunological study of patients carrying Glu349del and other mutations to elucidate the pathogenic mechanisms of dysgammaglobulinemia in patients with mutations in the XIAP gene. PATIENTS AND METHODS We performed an immunological study of 2 patients carrying the Glu349del mutation and 8 patients with other mutations. RESULTS Flow cytometry showed that the percentage of memory B cells in patients with a mutation in XIAP was lower than that observed in the healthy controls. The patients with the Glu349del mutation had a lower percentage of memory B cells than those with other mutations. Ig production was reduced in patients with the Glu349del mutation. Increased susceptibility to apoptosis was observed in the patients with other mutations. Susceptibility to apoptosis was normal in patients with Glu349del. Microarray analysis indicated that expression of Ig-related genes was reduced in patients with the Glu349del mutation and that the pattern was different from that observed in the healthy controls or patients with other mutations in XIAP. CONCLUSIONS Patients carrying the Glu349del mutation in the XIAP gene may have a clinically and immunologically distinct phenotype from patients with other XIAP mutations. The Glu349del mutation may be associated with dysgammaglobulinemia.
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242
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Chen B, Choi H, Hirsch LJ, Moeller J, Javed A, Kato K, Legge A, Buchsbaum R, Detyniecki K. Cosmetic side effects of antiepileptic drugs in adults with epilepsy. Epilepsy Behav 2015; 42:129-37. [PMID: 25513768 DOI: 10.1016/j.yebeh.2014.10.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 10/15/2014] [Accepted: 10/17/2014] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Cosmetic side effects (CSEs) such as weight gain and alopecia are common, undesirable effects associated with several AEDs. The objective of the study was to compare the CSE profiles in a large specialty practice-based sample of patients taking both older and newer AEDs. METHODS As part of the Columbia and Yale AED Database Project, we reviewed patient records including demographics, medical history, AED use, and side effects for 1903 adult patients (≥16years of age) newly started on an AED. Cosmetic side effects were determined by patient or physician report in the medical record and included acne, gingival hyperplasia, hair loss, hirsutism, and weight gain. We compared the overall rate of CSEs and intolerable CSEs (ICSEs-CSEs that led to dosage reduction or discontinuation) between different AEDs in both monotherapy and polytherapy. RESULTS Overall, CSEs occurred in 110/1903 (5.8%) patients and led to intolerability in 70/1903 (3.7%) patients. Weight gain was the most commonly reported CSE (68/1903, 3.6%) and led to intolerability in 63 (3.3%) patients. Alopecia was the second most common patient-reported CSE (36/1903, 1.9%) and was intolerable in 33/1903 (1.7%) patients. Risk factors for CSEs included female sex (7.0% vs. 4.3% in males; p<0.05) and any prior CSE (37% vs. 2.9% in patients without prior CSE; p<0.001). Significantly more CSEs were attributed to valproic acid (59/270; 21.9%; p<0.001) and pregabalin (14/143; 9.8%; p<0.001) than to all other AEDs. Significantly less CSEs were attributed to levetiracetam (7/524; 1.3%; p=0.002). Weight gain was most frequently associated with valproic acid (35/270; 13.0%; p<0.001) and pregabalin (12/143; 8.4%; p<0.001). Hair loss was most commonly reported among patients taking valproic acid (24/270; 8.9%; p<0.001). Finally, gingival hyperplasia was most commonly reported in patients taking phenytoin (10/404; 2.5%; p<0.001). Cosmetic side effects leading to dosage change or discontinuation occurred most frequently with pregabalin and valproic acid compared with all other AEDs (13.3 and 5.6% vs. 2.3%; p<0.001). For patients who had been on an AED in monotherapy (n=677), CSEs and ICSEs were still more likely to be attributed to valproic acid (30.2% and 17.1%, respectively) than to any other AED (both p<0.001). SIGNIFICANCE Weight gain and alopecia were the most common patient-reported CSEs in this study, and weight gain was the most likely cosmetic side effect to result in dosage adjustment or medication discontinuation. Particular attention should be paid to pregabalin, phenytoin, and valproic acid when considering cosmetic side effects. Female patients and patients who have had prior CSE(s) to AED(s) were more likely to report CSEs. Knowledge of specific CSE rates for each AED found in this study may be useful in clinical practice.
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Affiliation(s)
- B Chen
- Comprehensive Epilepsy Center, Dept. of Neurology, Yale University, New Haven, CT, USA.
| | - H Choi
- Comprehensive Epilepsy Center, Dept. of Neurology, Columbia University, New York, NY, USA
| | - L J Hirsch
- Comprehensive Epilepsy Center, Dept. of Neurology, Yale University, New Haven, CT, USA
| | - J Moeller
- Comprehensive Epilepsy Center, Dept. of Neurology, Yale University, New Haven, CT, USA
| | - A Javed
- Comprehensive Epilepsy Center, Dept. of Neurology, Columbia University, New York, NY, USA
| | - K Kato
- Comprehensive Epilepsy Center, Dept. of Neurology, Columbia University, New York, NY, USA
| | - A Legge
- Comprehensive Epilepsy Center, Dept. of Neurology, Columbia University, New York, NY, USA
| | - R Buchsbaum
- Comprehensive Epilepsy Center, Dept. of Neurology, Columbia University, New York, NY, USA
| | - K Detyniecki
- Comprehensive Epilepsy Center, Dept. of Neurology, Yale University, New Haven, CT, USA
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243
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Belloni A, Chernozhukov V, Kato K. Uniform post-selection inference for least absolute deviation regression and other Z-estimation problems. Biometrika 2014. [DOI: 10.1093/biomet/asu056] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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244
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Hamakawa T, Kukita Y, Kurokawa Y, Miyazaki Y, Takahashi T, Yamasaki M, Miyata H, Nakajima K, Taniguchi K, Takiguchi S, Mori M, Doki Y, Kato K. Monitoring gastric cancer progression with circulating tumour DNA. Br J Cancer 2014; 112:352-6. [PMID: 25490524 PMCID: PMC4453461 DOI: 10.1038/bjc.2014.609] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 08/18/2014] [Accepted: 11/04/2014] [Indexed: 12/13/2022] Open
Abstract
Background: Circulating tumour DNA (ctDNA) is an emerging candidate biomarker for malignancies and may be useful for monitoring the disease status of gastric cancer. Methods: We performed targeted deep sequencing of plasma cell-free DNA (cfDNA) by massively parallel sequencing in patients with tumours harbouring TP53 mutations. The quantitative values of TP53-ctDNA during the clinical course were compared with the tumour status. Results: Three out of ten patients with TP53 mutations in primary tumours showed detectable TP53 mutation levels in preoperative cfDNA. Although the cfDNA concentrations were not always reflective of the disease course, the ctDNA fraction correlated with the disease status. Conclusions: ctDNA may serve as a useful biomarker to monitor gastric cancer progression and residual disease.
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Affiliation(s)
- T Hamakawa
- 1] Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka 565-0871, Japan [2] Research Institute, Osaka Medical Center for Cancer and Cardiovascular Disease, 1-3-3 Nakamichi, Higashinari-ku, Osaka 537-8511, Japan
| | - Y Kukita
- Research Institute, Osaka Medical Center for Cancer and Cardiovascular Disease, 1-3-3 Nakamichi, Higashinari-ku, Osaka 537-8511, Japan
| | - Y Kurokawa
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Miyazaki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Takahashi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - M Yamasaki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - H Miyata
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - K Nakajima
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - K Taniguchi
- Research Institute, Osaka Medical Center for Cancer and Cardiovascular Disease, 1-3-3 Nakamichi, Higashinari-ku, Osaka 537-8511, Japan
| | - S Takiguchi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - M Mori
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Doki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - K Kato
- Research Institute, Osaka Medical Center for Cancer and Cardiovascular Disease, 1-3-3 Nakamichi, Higashinari-ku, Osaka 537-8511, Japan
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Kobara H, Mori H, Rafiq K, Fujihara S, Nishiyama N, Kato K, Oryu M, Tani J, Miyoshi H, Masaki T. Successful endoscopic treatment of Boerhaave syndrome using an over-the-scope clip. Endoscopy 2014; 46 Suppl 1 UCTN:E82-3. [PMID: 24676827 DOI: 10.1055/s-0032-1326454] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- H Kobara
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - H Mori
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - K Rafiq
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - S Fujihara
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - N Nishiyama
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - K Kato
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - M Oryu
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - J Tani
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - H Miyoshi
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - T Masaki
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan
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Heianza Y, Kato K, Fujihara K, Tanaka S, Kodama S, Hanyu O, Sato K, Sone H. Role of sleep duration as a risk factor for Type 2 diabetes among adults of different ages in Japan: the Niigata Wellness Study. Diabet Med 2014; 31:1363-7. [PMID: 25124930 DOI: 10.1111/dme.12555] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 05/15/2014] [Accepted: 07/28/2014] [Indexed: 12/13/2022]
Abstract
AIM To compare the role of short sleep duration as a risk factor for diabetes among adults of different ages. METHODS The study enrolled 38987 Japanese individuals without diabetes, and the 8-year risk of developing diabetes attributable to different sleep durations (< 5.5 h, 5.5 to < 6.5 h, 6.5 to < 7.0 h, 7.0-7.5 h, > 7.5-8.0 h, or > 8.0 h) was assessed among individuals aged ≤ 45, 46-59 or ≥ 60 years. RESULTS During the 8-year follow-up period, 2085 individuals developed diabetes. Overall, individuals with a short sleep duration of < 5.5 h or 5.5 to < 6.5 h had, respectively, a 1.53-fold (95% CI 1.19, 1.97) or 1.25-fold (95% CI 1.10, 1.42) increased risk of diabetes as compared with those who had 7.0-7.5 h of sleep. A sleep duration of < 5.5 h or 5.5 to < 6.5 h was predictive of the development of diabetes among individuals aged ≤ 45 years, but not among those aged ≥ 60 years. With increasing age, the effect of short sleep duration on the risk of diabetes was attenuated. CONCLUSIONS Short sleep duration was predictive of diabetes among young or middle-aged Japanese adults but not among elderly individuals after age was considered. Managing habitual short sleep and the possible reasons for having such short sleep duration could be particularly important for young or middle-aged adults in the development of future diabetes.
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Affiliation(s)
- Y Heianza
- Department of Internal Medicine, Niigata University Faculty of Medicine, Niigata, Japan
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247
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Murakoshi F, Takeuchi M, Inomata A, Horimoto T, Ito M, Suzuki Y, Kato K. Administration of lasalocid-NA is preventive against cryptosporidiosis of newborn calves. Vet Rec 2014; 175:353. [DOI: 10.1136/vr.102508] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- F. Murakoshi
- Department of Veterinary Microbiology; Graduate School of Agricultural and Life Sciences; University of Tokyo; 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan
- National Research Center for Protozoan Diseases; Obihiro University of Agriculture and Veterinary Medicine; Inada-cho Obihiro Hokkaido 080-8555 Japan
| | - M. Takeuchi
- Akabane Animal Clinic Co.; 55 Ishizoe Akabane-cho Tahara Aichi 441-3502 Japan
| | - A. Inomata
- Department of Veterinary Microbiology; Graduate School of Agricultural and Life Sciences; University of Tokyo; 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan
| | - T. Horimoto
- Department of Veterinary Microbiology; Graduate School of Agricultural and Life Sciences; University of Tokyo; 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan
| | - M. Ito
- Akabane Animal Clinic Co.; 55 Ishizoe Akabane-cho Tahara Aichi 441-3502 Japan
| | - Y. Suzuki
- Akabane Animal Clinic Co.; 55 Ishizoe Akabane-cho Tahara Aichi 441-3502 Japan
| | - K. Kato
- Department of Veterinary Microbiology; Graduate School of Agricultural and Life Sciences; University of Tokyo; 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan
- National Research Center for Protozoan Diseases; Obihiro University of Agriculture and Veterinary Medicine; Inada-cho Obihiro Hokkaido 080-8555 Japan
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248
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Toms LML, Thompson J, Rotander A, Hobson P, Calafat AM, Kato K, Ye X, Broomhall S, Harden F, Mueller JF. Decline in perfluorooctane sulfonate and perfluorooctanoate serum concentrations in an Australian population from 2002 to 2011. Environ Int 2014; 71:74-80. [PMID: 24980755 PMCID: PMC4724209 DOI: 10.1016/j.envint.2014.05.019] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Revised: 05/22/2014] [Accepted: 05/23/2014] [Indexed: 05/19/2023]
Abstract
Some perfluoroalkyl and polyfluoroalkyl substances (PFASs) have become widespread pollutants detected in human and wildlife samples worldwide. The main objective of this study was to assess temporal trends of PFAS concentrations in human blood in Australia over the last decade (2002-2011), taking into consideration age and sex trends. Pooled human sera from 2002/03 (n=26); 2008/09 (n=24) and 2010/11 (n=24) from South East Queensland, Australia were obtained from de-identified surplus pathology samples and compared with samples collected previously from 2006/07 (n=84). A total of 9775 samples in 158 pools were available for an assessment of PFASs. Stratification criteria included sex and age: <16 years (2002/03 only); 0-4 (2006/07, 2008/09, 2010/11); 5-15 (2006/07, 2008/09, 2010/11); 16-30; 31-45; 46-60; and >60 years (all collection periods). Sera were analyzed using on-line solid-phase extraction coupled to high-performance liquid chromatography-isotope dilution-tandem mass spectrometry. Perfluorooctane sulfonate (PFOS) was detected in the highest concentrations ranging from 5.3-19.2 ng/ml (2008/09) to 4.4-17.4 ng/ml (2010/11). Perfluorooctanoate (PFOA) was detected in the next highest concentration ranging from 2.8-7.3 ng/ml (2008/09) to 3.1-6.5 ng/ml (2010/11). All other measured PFASs were detected at concentrations <1 ng/ml with the exception of perfluorohexane sulfonate which ranged from 1.2-5.7 ng/ml (08/09) and 1.4-5.4 ng/ml (10/11). The mean concentrations of both PFOS and PFOA in the 2010/11 period compared to 2002/03 were lower for all adult age groups by 56%. For 5-15 year olds, the decrease was 66% (PFOS) and 63% (PFOA) from 2002/03 to 2010/11. For 0-4 year olds the decrease from 2006/07 (when data were first available for this age group) was 50% (PFOS) and 22% (PFOA). This study provides strong evidence for decreasing serum PFOS and PFOA concentrations in an Australian population from 2002 through 2011. Age trends were variable and concentrations were higher in males than in females. Global use has been in decline since around 2002 and hence primary exposure levels are expected to be decreasing. Further biomonitoring will allow assessment of PFAS exposures to confirm trends in exposure as primary and eventually secondary sources are depleted.
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Affiliation(s)
- L-M L Toms
- School of Clinical Sciences and Institute for Health and Biomedical Innovation, Queensland University of Technology, Gardens Point, Brisbane 4001, Australia.
| | - J Thompson
- Queensland Health Scientific Services, 39 Kessels Rd, Coopers Plains, QLD 4108, Australia
| | - A Rotander
- The University of Queensland, National Research Centre for Environmental Toxicology, 39 Kessels Rd, Coopers Plains, QLD 4108, Australia
| | - P Hobson
- Sullivan Nicolaides Pathology, 125 Whitmore St, Taringa, QLD 4068, Australia
| | - A M Calafat
- Centers for Disease Control and Prevention, Atlanta, GA 30341, USA
| | - K Kato
- Centers for Disease Control and Prevention, Atlanta, GA 30341, USA
| | - X Ye
- Centers for Disease Control and Prevention, Atlanta, GA 30341, USA
| | - S Broomhall
- Department of the Environment, GPO Box 787, Canberra, ACT 2601, Australia
| | - F Harden
- School of Clinical Sciences and Institute for Health and Biomedical Innovation, Queensland University of Technology, Gardens Point, Brisbane 4001, Australia
| | - J F Mueller
- The University of Queensland, National Research Centre for Environmental Toxicology, 39 Kessels Rd, Coopers Plains, QLD 4108, Australia
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249
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Itoh M, Ando S, Aoki T, Arikawa H, Ezure S, Harada K, Hayamizu T, Inoue T, Ishikawa T, Kato K, Kawamura H, Sakemi Y, Uchiyama A. Further improvement of the upper limit on the direct 3α decay from the Hoyle state in 12C. Phys Rev Lett 2014; 113:102501. [PMID: 25238351 DOI: 10.1103/physrevlett.113.102501] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Indexed: 06/03/2023]
Abstract
The direct 3α decay branch from the 02+ state at Ex=7.65 MeV in 12C, which is known as the Hoyle state, is considered to affect the triple-α reaction rate strongly and to give crucial information on its structure. We have performed a high-precision measurement of the 3α decay from this state using the 12C(12C,3α)12C reaction at E12C=110 MeV. The branching ratio of the direct 3α decay was under the detection limit in the present experiment. By comparing with Monte Carlo simulations for three decay mechanisms as the sequential decay through the ground state of ^{8}Be, the direct decay with equal energies of three α particles, and the direct decay to the phase space uniformly, we have obtained the upper limit of 0.2% on the direct 3α decay.
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Affiliation(s)
- M Itoh
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - S Ando
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - T Aoki
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - H Arikawa
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - S Ezure
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - K Harada
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - T Hayamizu
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - T Inoue
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - T Ishikawa
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - K Kato
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - H Kawamura
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Y Sakemi
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - A Uchiyama
- Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Miyagi 980-8578, Japan
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Hara H, Ando N, Igaki H, Shinoda M, Kato K, Kitagawa Y, Mizusawa J, Nakamura K. The Influence of Chemotherapy-Induced Leucopenia (Cil) During Preoperative Chemotherapy (Pre-Cx) on Survival in Esophageal Squamous Cell Carcinoma (Escc) from the Results of Jcog9907. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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