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Fletcher CE, Deng L, Orafidiya F, Yuan W, Lorentzen MPGS, Cyran OW, Varela-Carver A, Constantin TA, Leach DA, Dobbs FM, Figueiredo I, Gurel B, Parkes E, Bogdan D, Pereira RR, Zhao SG, Neeb A, Issa F, Hester J, Kudo H, Liu Y, Philippou Y, Bristow R, Knudsen K, Bryant RJ, Feng FY, Reed SH, Mills IG, de Bono J, Bevan CL. A non-coding RNA balancing act: miR-346-induced DNA damage is limited by the long non-coding RNA NORAD in prostate cancer. Mol Cancer 2022; 21:82. [PMID: 35317841 PMCID: PMC8939142 DOI: 10.1186/s12943-022-01540-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 02/10/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND miR-346 was identified as an activator of Androgen Receptor (AR) signalling that associates with DNA damage response (DDR)-linked transcripts in prostate cancer (PC). We sought to delineate the impact of miR-346 on DNA damage, and its potential as a therapeutic agent. METHODS RNA-IP, RNA-seq, RNA-ISH, DNA fibre assays, in vivo xenograft studies and bioinformatics approaches were used alongside a novel method for amplification-free, single nucleotide-resolution genome-wide mapping of DNA breaks (INDUCE-seq). RESULTS miR-346 induces rapid and extensive DNA damage in PC cells - the first report of microRNA-induced DNA damage. Mechanistically, this is achieved through transcriptional hyperactivation, R-loop formation and replication stress, leading to checkpoint activation and cell cycle arrest. miR-346 also interacts with genome-protective lncRNA NORAD to disrupt its interaction with PUM2, leading to PUM2 stabilisation and its increased turnover of DNA damage response (DDR) transcripts. Confirming clinical relevance, NORAD expression and activity strongly correlate with poor PC clinical outcomes and increased DDR in biopsy RNA-seq studies. In contrast, miR-346 is associated with improved PC survival. INDUCE-seq reveals that miR-346-induced DSBs occur preferentially at binding sites of the most highly-transcriptionally active transcription factors in PC cells, including c-Myc, FOXA1, HOXB13, NKX3.1, and importantly, AR, resulting in target transcript downregulation. Further, RNA-seq reveals widespread miR-346 and shNORAD dysregulation of DNA damage, replication and cell cycle processes. NORAD drives target-directed miR decay (TDMD) of miR-346 as a novel genome protection mechanism: NORAD silencing increases mature miR-346 levels by several thousand-fold, and WT but not TDMD-mutant NORAD rescues miR-346-induced DNA damage. Importantly, miR-346 sensitises PC cells to DNA-damaging drugs including PARP inhibitor and chemotherapy, and induces tumour regression as a monotherapy in vivo, indicating that targeting miR-346:NORAD balance is a valid therapeutic strategy. CONCLUSIONS A balancing act between miR-346 and NORAD regulates DNA damage and repair in PC. miR-346 may be particularly effective as a therapeutic in the context of decreased NORAD observed in advanced PC, and in transcriptionally-hyperactive cancer cells.
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Affiliation(s)
- C E Fletcher
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery & Cancer, Imperial College London, London, UK.
| | - L Deng
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery & Cancer, Imperial College London, London, UK
| | - F Orafidiya
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery & Cancer, Imperial College London, London, UK
| | - W Yuan
- Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, UK
| | - M P G S Lorentzen
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery & Cancer, Imperial College London, London, UK
| | - O W Cyran
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery & Cancer, Imperial College London, London, UK
| | - A Varela-Carver
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery & Cancer, Imperial College London, London, UK
| | - T A Constantin
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery & Cancer, Imperial College London, London, UK
| | - D A Leach
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery & Cancer, Imperial College London, London, UK
| | - F M Dobbs
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff, UK
- Broken String Biosciences, Unit AB303, Level 3, BioData Innovation Centre, Wellcome Genome Campus, Hinxton, Cambridge, UK
| | - I Figueiredo
- Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, UK
| | - B Gurel
- Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, UK
| | - E Parkes
- Institute for Radiation Oncology, Department of Oncology, University of Oxford, London, UK
| | - D Bogdan
- Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, UK
| | - R R Pereira
- Translational Oncogenomics, Manchester Cancer Research Centre and Cancer Research UK Manchester Institute, Manchester, UK
- Division of Cancer Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester, UK
| | - S G Zhao
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - A Neeb
- Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, UK
| | - F Issa
- Transplantation Research and Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - J Hester
- Transplantation Research and Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - H Kudo
- Section of Pathology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Y Liu
- Veracyte, Inc., San Diego, CA, USA
| | - Y Philippou
- Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - R Bristow
- Translational Oncogenomics, Manchester Cancer Research Centre and Cancer Research UK Manchester Institute, Manchester, UK
- Division of Cancer Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester, UK
- Christie NHS Foundation Trust, Manchester, UK
| | - K Knudsen
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
- American Cancer Society and American Cancer Society Cancer Action Network, Washington DC, USA
| | - R J Bryant
- Institute for Radiation Oncology, Department of Oncology, University of Oxford, London, UK
| | - F Y Feng
- Departments of Urology and Radiation Oncology, University of California San Francisco, San Francisco, CA, USA
| | - S H Reed
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff, UK
| | - I G Mills
- Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, UK
- Patrick G Johnston Centre for Cancer Research, Queen's University of Belfast, Belfast, UK
- Centre for Cancer Biomarkers, University of Bergen, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - J de Bono
- Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, UK
| | - C L Bevan
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery & Cancer, Imperial College London, London, UK
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2
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Kudo H, Okuyama MW, Sakamoto KQ, Uchida K, Sato K. Serotonin-manipulated juvenile green sea turtles Chelonia mydas exhibit reduced fear-like behaviour. ENDANGER SPECIES RES 2021. [DOI: 10.3354/esr01153] [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: 11/23/2022] Open
Abstract
Animals display fear-like behaviours before escaping from predators. This response triggers both behavioural and physiological changes in multiple body systems, allowing animals to escape danger and ensure survival. Fear-like behaviour is modulated by the serotonergic system in the brain of vertebrates, which shapes social behaviour and cooperative behaviours. Using fluoxetine (FLX), a common pharmaceutical that alters the levels of serotonin in the brain, we aimed to clarify whether the same is true in solitary animals like green turtles Chelonia mydas. Green turtles exhibit individual differences in their response to risk. If fear-related behaviours are regulated by the serotonin system in turtles, the fear-like responses of individuals injected with FLX could change. We therefore assessed the effect of FLX injection on the behavioural responses to a fear stimulus in 9 wild juvenile green turtles in an aquarium setting. We inserted a hand net as a stimulus into the aquarium (within a designated inspection zone) to elicit a fear-like behaviour and measured the time that turtles spent in this zone. All turtles exhibited fear-like behaviour and fled from the stimulus prior to any injection treatment. Turtles with control injection (no FLX) also fled and avoided the inspection zone with the fear stimulus. FLX injection appeared to reduce the turtles’ fear of the stimulus: The total time turtles injected with FLX spent in the inspection zone was significantly longer than for turtles that received a control medium injection. Control turtles fled from the stimulus and were initially vigilant and avoided the area with the stimulus, but then moved throughout the aquarium, including the inspection zone. These data suggest that fear-like behaviour is modulated by the serotonin-mediated nerve system in juvenile green turtles.
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Affiliation(s)
- H Kudo
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba 277-8564, Japan
| | - MW Okuyama
- Faculty of Medicine, Oita University, Yufu 879-5593, Japan
| | - KQ Sakamoto
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba 277-8564, Japan
| | - K Uchida
- Oita environmental conservation forum, Nishishinchi, Oita, Oita 870-0901, Japan
| | - K Sato
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba 277-8564, Japan
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3
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Shiroma Y, Hosoda M, Iwaoka K, Hegedűs M, Kudo H, Tsujiguchi T, Yamaguchi M, Akata N, Kashiwakura I, Tokonami S. CHANGES OF ABSORBED DOSE RATE IN AIR BY CAR-BORNE SURVEY IN NAMIE TOWN, FUKUSHIMA PREFECTURE AFTER THE FUKUSHIMA DAIICHI NUCLEAR POWER PLANT ACCIDENT. Radiat Prot Dosimetry 2019; 184:527-530. [PMID: 31038712 DOI: 10.1093/rpd/ncz096] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The latest car-borne survey was carried out by Hirosaki University in order to grasp the local distribution of the absorbed dose rate in air after the evacuation order was lifted on Namie Town in 2017. The car-borne survey of absorbed dose rate in air was carried out on most of the roads which were accessible by car in Namie Town using a 3-in × 3-in NaI(Tl) scintillation spectrometer. The range of the absorbed dose rate in air was calculated to be 0.041-11 μGy h-1. The distribution maps of the absorbed dose rate in air were drawn based on the data obtained during the surveys in 2011, 2015 and 2017. The comparison of these absorbed dose rates in air suggests that the elevated absorbed dose rate in air in Namie Town caused by the FDNPP accident may be decreasing faster than natural decline which includes weathering effect and physical decay due to the artificial decontamination.
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Affiliation(s)
- Y Shiroma
- Hirosaki University Graduate School of Health Sciences, Hirosaki, Japan
| | - M Hosoda
- Hirosaki University Graduate School of Health Sciences, Hirosaki, Japan
| | - K Iwaoka
- National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - M Hegedűs
- Hirosaki University Institute of Radiation Emergency Medicine, Hirosaki, Japan
| | - H Kudo
- Hirosaki University Graduate School of Health Sciences, Hirosaki, Japan
| | - T Tsujiguchi
- Hirosaki University Graduate School of Health Sciences, Hirosaki, Japan
| | - M Yamaguchi
- Hirosaki University Graduate School of Health Sciences, Hirosaki, Japan
| | - N Akata
- National Institute for Fusion Science, Toki, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Japan
| | - I Kashiwakura
- Hirosaki University Graduate School of Health Sciences, Hirosaki, Japan
| | - S Tokonami
- Hirosaki University Institute of Radiation Emergency Medicine, Hirosaki, Japan
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4
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Autsavapromporn N, Dukaew N, Wongnoppavich A, Chewaskulyong B, Roytrakul S, Klunklin P, Phantawong K, Chitapanarux I, Sripun P, Kritsananuwat R, Amphol S, Pornnumpa C, Suzuki T, Kudo H, Hosoda M, Tokonami S. IDENTIFICATION OF NOVEL BIOMARKERS FOR LUNG CANCER RISK IN HIGH LEVELS OF RADON BY PROTEOMICS: A PILOT STUDY. Radiat Prot Dosimetry 2019; 184:496-499. [PMID: 31330007 DOI: 10.1093/rpd/ncz064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 04/02/2019] [Indexed: 06/10/2023]
Abstract
Radon is the second most important risk factor for lung cancer after tobacco smoking. In Chiang Mai, Thailand, the values of indoor radon activity concentrations are considerably higher than global average values and it is a highest level among East Asian countries. The aim of our study is to identify novel biomarkers for lung cancer risk in high radon areas using a proteomic approach. In our transitional study, a total of 81 participants of non-smokers were examined, consist of 25 lung cancer patients (LC), 16 healthy controls from low levels of natural radiation areas (LLNRA) and 40 healthy controls from high levels of natural radiation areas (HLNRA). The results showed that a total of 799 differentially expressed proteins were identified. Among these, a total of 25 proteins were observed in both LC and HLNRA, but not in LINRA. Owing to the results obtained from this study, we also point out the research direction regarding the validation of some new candidate protein as a biomarker to screen population with high risk for lung cancer in the area with high levels of radon.
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Affiliation(s)
- N Autsavapromporn
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Northern Thai Research Group of Radiation Oncology (NTRG-RO), Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - N Dukaew
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - A Wongnoppavich
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - B Chewaskulyong
- Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - S Roytrakul
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, Pathum Thani, Thailand
| | - P Klunklin
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Northern Thai Research Group of Radiation Oncology (NTRG-RO), Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - K Phantawong
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - I Chitapanarux
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Northern Thai Research Group of Radiation Oncology (NTRG-RO), Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - P Sripun
- Northern Thai Research Group of Radiation Oncology (NTRG-RO), Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - R Kritsananuwat
- Department of Nuclear Engineering, Chulalongkorn University, Pathumwan, Bangkok, Thailand
| | - S Amphol
- Chiang Mai Neurological Hospital, Chiang Mai, Thailand
| | - C Pornnumpa
- Department of Applied Radiation and Isotope, Faculty of Sciences, Kasetsart University, Bangkok, Thailand
| | - T Suzuki
- Hirosaki University Graduate School of Health Science, Hirosaki, Aomori, Japan
| | - H Kudo
- Hirosaki University Graduate School of Health Science, Hirosaki, Aomori, Japan
| | - M Hosoda
- Hirosaki University Graduate School of Health Science, Hirosaki, Aomori, Japan
- Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Aomori, Japan
| | - S Tokonami
- Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Aomori, Japan
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5
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Nyambura C, Tokonami S, Hashim NO, Chege MW, Suzuki T, Kudo H, Hosoda M. ANNUAL EFFECTIVE DOSE ASSESSMENT DUE TO RADON AND THORON PROGENIES IN DWELLINGS OF KILIMAMBOGO, KENYA. Radiat Prot Dosimetry 2019; 184:430-434. [PMID: 31034555 DOI: 10.1093/rpd/ncz090] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Indexed: 06/09/2023]
Abstract
Human beings are continuously exposed to ionising radiation originating from natural or artificial sources. Uranium-238 and Thorium-232 found in building materials are important sources of radon and thoron in the indoor environment. The concentration levels of radon, thoron and thoron progeny were measured in mud-walled, metallic or iron sheet-walled and stone-walled modern houses in Kilimambogo region, Kenya for 3 months. Radon and thoron concentration levels were measured using passive radon-thoron discriminative monitors (RADUET), while thoron progeny concentrations as the equilibrium equivalent thoron concentration (EETC) were measured using thoron progeny monitors. The mean radon concentration levels in mud, metallic and stone-walled dwellings were 67 ± 11, 60 ± 10 and 75 ± 10 Bq m-3, respectively. The mean thoron concentration levels in the corresponding dwellings were 195 ± 36, 71 ± 24 and 161 ± 31 Bq m-3, respectively, while EETCs were 12 ± 2, 3 ± 1 and 7 ± 1 Bq m-3, respectively. The annual effective doses for radon were 1.3 ± 0.2, 1.1 ± 0.1 and 1.4 ± 0.2 mSv y-1 in mud, metallic and stone-walled houses while those from thoron estimated from EETC were 2.4 ± 0.4, 0.5 ± 0.1 and 1.5 ± 0.2 mSv y-1 in the corresponding houses, respectively.
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Affiliation(s)
- C Nyambura
- Physics Department, Kenyatta University, Nairobi, Kenya
| | - S Tokonami
- Insititute of Radiation Emergency Medicine, Hirosaki University, 66-1 Hon-Cho, Hirosaki, Aomori, Japan
| | - N O Hashim
- Physics Department, Kenyatta University, Nairobi, Kenya
| | - M W Chege
- Physics Department, Kenyatta University, Nairobi, Kenya
| | - T Suzuki
- Hirosaki University Graduate School of Health Science, 66-1 Hon-Cho, Hirosaki, Aomori, Japan
| | - H Kudo
- Hirosaki University Graduate School of Health Science, 66-1 Hon-Cho, Hirosaki, Aomori, Japan
| | - M Hosoda
- Hirosaki University Graduate School of Health Science, 66-1 Hon-Cho, Hirosaki, Aomori, Japan
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6
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Kudo H, Takeichi O, Hatori K, Makino K, Himi K, Ogiso B. A potential role for the silent information regulator 2 homologue 1 (SIRT1) in periapical periodontitis. Int Endod J 2018; 51:747-757. [PMID: 29363137 DOI: 10.1111/iej.12894] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 09/03/2017] [Accepted: 01/18/2018] [Indexed: 01/14/2023]
Abstract
AIM To investigate the role played by silent information regulator 2 homologue 1 (SIRT1) during angiogenesis of periapical periodontitis. METHODOLOGY Periapical granulomas were subjected to dual-colour immunofluorescence imaging and real-time polymerase chain reactions assaying the expression levels of SIRT1, vascular endothelial growth factor (VEGF) and VE-cadherin. The association between Ki-67 and SIRT1 expression was also examined. Human umbilical vein endothelial cells (HUVECs) were treated with a combination of lipopolysaccharide and resveratrol (a SIRT1 activator) or sirtinol (a SIRT1 inhibitor); and the levels of mRNAs encoding SIRT1, VEGF and VE-cadherin were determined. HUVEC tube formation was assayed in the presence of resveratrol or sirtinol. The Mann-Whitney U-test or the Tukey-Kramer test was used for statistical analysis. RESULTS Ki-67-expressing cells, including endothelial cells, lay adjacent to SIRT1-expressing cells in periapical granulomas. In addition, SIRT1-expressing cells were detected adjacent to VEGF-expressing cells and VEGF- or VE-cadherin-expressing endothelial cells. SIRT1, VEGF and VE-cadherin mRNA expression levels in periapical granulomas were significantly higher (P = 0.0054, 0.0090 and 0.0090, respectively) than those in healthy gingival tissues. HUVECs treated with resveratrol exhibited significantly higher expression of mRNAs encoding SIRT1, VEGF and VE-cadherin (P = 0.0019, 0.00005 and 0.0045, respectively) compared with controls, but sirtinol inhibited such expression. Resveratrol caused HUVECs to form tube-like structures, whilst sirtinol inhibited this process. CONCLUSIONS These findings suggest that SIRT1 may stimulate angiogenesis in periapical granulomas by triggering the proliferation of endothelial cells and inducing VEGF and VE-cadherin expression.
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Affiliation(s)
- H Kudo
- Department of Endodontics, Nihon University School of Dentistry, Tokyo, Japan
| | - O Takeichi
- Department of Endodontics, Nihon University School of Dentistry, Tokyo, Japan.,Division of Advanced Dental Treatment, Dental Research Centre, Nihon University School of Dentistry, Tokyo, Japan
| | - K Hatori
- Department of Endodontics, Nihon University School of Dentistry, Tokyo, Japan.,Division of Advanced Dental Treatment, Dental Research Centre, Nihon University School of Dentistry, Tokyo, Japan
| | - K Makino
- Department of Endodontics, Nihon University School of Dentistry, Tokyo, Japan
| | - K Himi
- Department of Endodontics, Nihon University School of Dentistry, Tokyo, Japan
| | - B Ogiso
- Department of Endodontics, Nihon University School of Dentistry, Tokyo, Japan.,Division of Advanced Dental Treatment, Dental Research Centre, Nihon University School of Dentistry, Tokyo, Japan
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Sawamura S, Jinnin M, Shimbara M, Nakamura K, Kudo H, Inoue K, Nakayama W, Kajihara I, Fukushima S, Ihn H. 402 Serum levels of genomic DNA of α1(I) collagen are detectable and elevated in scleroderma patients. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.597] [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: 11/16/2022]
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8
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Yoshida N, Sugimoto K, Suzuki S, Kudo H. Change in oral health status associated with menopause in Japanese dental hygienists. Int J Dent Hyg 2017; 16:157-164. [DOI: 10.1111/idh.12282] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2017] [Indexed: 11/26/2022]
Affiliation(s)
- N Yoshida
- Department of Dental Hygiene; Faculty of Health Care Science; Chiba Prefectural University of Health Sciences; Chiba Japan
| | - K Sugimoto
- Course for Oral Health Engineering; School of Oral Health Care Sciences; Faculty of Dentistry; Tokyo Medical and Dental University; Tokyo Japan
| | - S Suzuki
- Department of Clinical Laboratory Medicine; Faculty of Health Science Technology; Bunkyo Gakuin University; Tokyo Japan
| | - H Kudo
- Department of Clinical Laboratory Medicine; Faculty of Health Science Technology; Bunkyo Gakuin University; Tokyo Japan
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9
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Hata S, Miyazaki S, Gondo T, Kawamoto K, Horii N, Sato K, Furukawa H, Kudo H, Miyazaki H, Murayama M. In-situ straining and time-resolved electron tomography data acquisition in a transmission electron microscope. Microscopy (Oxf) 2017; 66:143-153. [PMID: 27993950 DOI: 10.1093/jmicro/dfw109] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Accepted: 11/23/2016] [Indexed: 11/13/2022] Open
Abstract
This paper reports the preliminary results of a new in-situ three-dimensional (3D) imaging system for observing plastic deformation behavior in a transmission electron microscope (TEM) as a directly relevant development of the recently reported straining-and-tomography holder [Sato K et al. (2015) Development of a novel straining holder for transmission electron microscopy compatible with single tilt-axis electron tomography. Microsc. 64: 369-375]. We designed an integrated system using the holder and newly developed straining and image-acquisition software and then developed an experimental procedure for in-situ straining and time-resolved electron tomography (ET) data acquisition. The software for image acquisition and 3D visualization was developed based on the commercially available ET software TEMographyTM. We achieved time-resolved 3D visualization of nanometer-scale plastic deformation behavior in a Pb-Sn alloy sample, thus demonstrating the capability of this system for potential applications in materials science.
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Affiliation(s)
- S Hata
- Department of Electrical and Materials Science and Engineering and The Ultramicroscopy Research Center, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
| | - S Miyazaki
- FEI Company Japan Ltd. (Currently, Materials and Structural Analysis, Thermo Fisher Scientific), 4-12-2 Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-0002, Japan.,Mel-Build Corporation, 3-1-15, Shimoyamato, Nishi-ku, Fukuoka 819-0052, Japan
| | - T Gondo
- Mel-Build Corporation, 3-1-15, Shimoyamato, Nishi-ku, Fukuoka 819-0052, Japan
| | - K Kawamoto
- Engineering Department, System in Frontier Inc., 2-8-3, Shinsuzuharu bldg. 4F, Akebono-cho, Tachikawa-shi, Tokyo 190-0012, Japan
| | - N Horii
- Engineering Department, System in Frontier Inc., 2-8-3, Shinsuzuharu bldg. 4F, Akebono-cho, Tachikawa-shi, Tokyo 190-0012, Japan
| | - K Sato
- Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, 7-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - H Furukawa
- System in Frontier Inc., 2-8-3, Shinsuzuharu bldg. 4F, Akebono-cho, Tachikawa-shi, Tokyo 190-0012, Japan
| | - H Kudo
- Faculty of Engineering, Information and Systems, University of Tsukuba, Tennoudai 1-1-1, Tsukuba 305-8573, Japan.,JST-ERATO, Momose Quantum-Beam Phase Imaging Project, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
| | - H Miyazaki
- Mel-Build Corporation, 3-1-15, Shimoyamato, Nishi-ku, Fukuoka 819-0052, Japan
| | - M Murayama
- Department of Materials Science and Engineering, Virginia Tech, 134 Randolph Hall (MC 0286), 460 Old Turner Street, Blacksburg, VA 24061, USA
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Ichida A, Hasegawa K, Takayama T, Kudo H, Sakamoto Y, Yamazaki S, Midorikawa Y, Higaki T, Matsuyama Y, Kokudo N. Randomized clinical trial comparing two vessel-sealing devices with crush clamping during liver transection. Br J Surg 2016; 103:1795-1803. [DOI: 10.1002/bjs.10297] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 06/24/2016] [Accepted: 07/13/2016] [Indexed: 12/22/2022]
Abstract
Abstract
Background
Previous RCTs have failed to demonstrate the usefulness of combining energy devices with the conventional clamp crushing method to reduce blood loss during liver transection. Here, the combination of an ultrasonically activated device (UAD) and a bipolar vessel-sealing device (BVSD) with crush clamping was investigated.
Methods
Patients scheduled to undergo hepatectomy at the University of Tokyo Hospital or Nihon University Itabashi Hospital were eligible for this parallel-group, single-blinded randomized study. Patients were assigned to a control group (no energy device used), an UAD group or a BVSD group. The primary endpoint was the volume of blood loss during liver transection. Outcomes of the control group and the combined energy device groups (UAD plus BVSD) were first compared. Pairwise comparisons among the three groups were made for outcomes for which the combined energy device group was superior to the control group.
Results
A total of 380 patients were enrolled between July 2012 and May 2014; 116 patients in the control group, 122 in the UAD group and 123 in the BVSD group were included in the final analysis. Median blood loss during liver transection was lower in the combined energy device group (245 patients) than in the control group (116 patients): median 190 (range 0–3575) versus 230 (range 3–1570) ml (P = 0·048). Pairwise comparison revealed that blood loss was lower in the BVSD group than in the control group (P = 0·043).
Conclusion
The use of energy devices combined with crush clamping reduced blood loss during liver transection. Registration number: C000008372 (www.umin.ac.jp/ctr/index.htm).
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Affiliation(s)
- A Ichida
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, Tokyo, Japan
| | - K Hasegawa
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, Tokyo, Japan
| | - T Takayama
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - H Kudo
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, Tokyo, Japan
| | - Y Sakamoto
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, Tokyo, Japan
| | - S Yamazaki
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Y Midorikawa
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - T Higaki
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Y Matsuyama
- Department of Biostatistics, School of Public Health, University of Tokyo, Tokyo, Japan
| | - N Kokudo
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, Tokyo, Japan
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11
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Nakamura K, Jinnin M, Kudo H, Inoue K, Nakayama W, Honda N, Kajihara I, Masuguchi S, Fukushima S, Ihn H. The role of PSMB9 upregulated by interferon signature in the pathophysiology of cutaneous lesions of dermatomyositis and systemic lupus erythematosus. Br J Dermatol 2016; 174:1030-41. [PMID: 26713607 DOI: 10.1111/bjd.14385] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2015] [Indexed: 12/17/2022]
Abstract
BACKGROUND Dermatomyositis (DM) and systemic lupus erythematosus (SLE) have common skin features, including dermal mucin deposition and interferon signature, although their roles are unknown. OBJECTIVES To identify common or specific molecular changes in DM and SLE skin. METHODS Proteomic analysis was performed using DM and healthy skin. Glycosaminoglycans were analysed by high-performance liquid chromatography. RESULTS The expression of 60 proteins was upregulated or downregulated in DM skin compared with healthy skin in the proteomic analysis. Among those proteins, PSMB9, an immunoproteasome subunit, was upregulated in the epidermis of DM and SLE, but not in other skin diseases. Furthermore, versican V1, a core protein for glycosaminoglycans, was upregulated, while type I collagen was downregulated in the dermis of DM and SLE skin. Interferon stimulated PSMB9 expression in cultured keratinocytes and reduced collagen expression in dermal fibroblasts, but did not affect versican expression. The PSMB9 knock-down in keratinocytes led to significant suppression of transforming growth factor (TGF)-β2 and TGF-β3, inducers of versican synthesis. TGF-β3 expression was upregulated in both DM and SLE, while TGF-β2 expression was increased only in the DM epidermis. ΔDiHS-diS1, a component of heparan sulfate, was significantly increased only in DM. TGF-β2 expression significantly increased the ΔDiHS-diS1 expression in dermal fibroblasts in vitro. CONCLUSIONS The interferon signature in DM and SLE skin reduces collagen in dermal fibroblasts, whereas overexpression of PSMB9 induced by interferon stimulates versican inducers in epidermal keratinocytes. In addition, the TGF-β2-ΔDiHS-diS1 pathway may be responsible for the specific molecular change in DM skin.
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Affiliation(s)
- K Nakamura
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - M Jinnin
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - H Kudo
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - K Inoue
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - W Nakayama
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - N Honda
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - I Kajihara
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - S Masuguchi
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - S Fukushima
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - H Ihn
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
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12
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Adachi N, Adamovitch V, Adjovi Y, Aida K, Akamatsu H, Akiyama S, Akli A, Ando A, Andrault T, Antonietti H, Anzai S, Arkoun G, Avenoso C, Ayrault D, Banasiewicz M, Banaśkiewicz M, Bernardini L, Bernard E, Berthet E, Blanchard M, Boreyko D, Boros K, Charron S, Cornette P, Czerkas K, Dameron M, Date I, De Pontbriand M, Demangeau F, Dobaczewski Ł, Dobrzyński L, Ducouret A, Dziedzic M, Ecalle A, Edon V, Endo K, Endo T, Endo Y, Etryk D, Fabiszewska M, Fang S, Fauchier D, Felici F, Fujiwara Y, Gardais C, Gaul W, Gurin L, Hakoda R, Hamamatsu I, Handa K, Haneda H, Hara T, Hashimoto M, Hashimoto T, Hashimoto K, Hata D, Hattori M, Hayano R, Hayashi R, Higasi H, Hiruta M, Honda A, Horikawa Y, Horiuchi H, Hozumi Y, Ide M, Ihara S, Ikoma T, Inohara Y, Itazu M, Ito A, Janvrin J, Jout I, Kanda H, Kanemori G, Kanno M, Kanomata N, Kato T, Kato S, Katsu J, Kawasaki Y, Kikuchi K, Kilian P, Kimura N, Kiya M, Klepuszewski M, Kluchnikov E, Kodama Y, Kokubun R, Konishi F, Konno A, Kontsevoy V, Koori A, Koutaka A, Kowol A, Koyama Y, Kozioł M, Kozue M, Kravtchenko O, Kruczała W, Kudła M, Kudo H, Kumagai R, Kurogome K, Kurosu A, Kuse M, Lacombe A, Lefaillet E, Magara M, Malinowska J, Malinowski M, Maroselli V, Masui Y, Matsukawa K, Matsuya K, Matusik B, Maulny M, Mazur P, Miyake C, Miyamoto Y, Miyata K, Miyata K, Miyazaki M, Molȩda M, Morioka T, Morita E, Muto K, Nadamoto H, Nadzikiewicz M, Nagashima K, Nakade M, Nakayama C, Nakazawa H, Nihei Y, Nikul R, Niwa S, Niwa O, Nogi M, Nomura K, Ogata D, Ohguchi H, Ohno J, Okabe M, Okada M, Okada Y, Omi N, Onodera H, Onodera K, Ooki S, Oonishi K, Oonuma H, Ooshima H, Oouchi H, Orsucci M, Paoli M, Penaud M, Perdrisot C, Petit M, Piskowski A, Płocharski A, Polis A, Polti L, Potsepnia T, Przybylski D, Pytel M, Quillet W, Remy A, Robert C, Sadowski M, Saito M, Sakuma D, Sano K, Sasaki Y, Sato N, Schneider T, Schneider C, Schwartzman K, Selivanov E, Sezaki M, Shiroishi K, Shustava I, Śniecińska A, Stalchenko E, Staroń A, Stromboni M, Studzińska W, Sugisaki H, Sukegawa T, Sumida M, Suzuki Y, Suzuki K, Suzuki R, Suzuki H, Suzuki K, Świderski W, Szudejko M, Szymaszek M, Tada J, Taguchi H, Takahashi K, Tanaka D, Tanaka G, Tanaka S, Tanino K, Tazbir K, Tcesnokova N, Tgawa N, Toda N, Tsuchiya H, Tsukamoto H, Tsushima T, Tsutsumi K, Umemura H, Uno M, Usui A, Utsumi H, Vaucelle M, Wada Y, Watanabe K, Watanabe S, Watase K, Witkowski M, Yamaki T, Yamamoto J, Yamamoto T, Yamashita M, Yanai M, Yasuda K, Yoshida Y, Yoshida A, Yoshimura K, Żmijewska M, Zuclarelli E. Measurement and comparison of individual external doses of high-school students living in Japan, France, Poland and Belarus-the 'D-shuttle' project. J Radiol Prot 2016; 36:49-66. [PMID: 26613195 DOI: 10.1088/0952-4746/36/1/49] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [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
Twelve high schools in Japan (of which six are in Fukushima Prefecture), four in France, eight in Poland and two in Belarus cooperated in the measurement and comparison of individual external doses in 2014. In total 216 high-school students and teachers participated in the study. Each participant wore an electronic personal dosimeter 'D-shuttle' for two weeks, and kept a journal of his/her whereabouts and activities. The distributions of annual external doses estimated for each region overlap with each other, demonstrating that the personal external individual doses in locations where residence is currently allowed in Fukushima Prefecture and in Belarus are well within the range of estimated annual doses due to the terrestrial background radiation level of other regions/countries.
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Affiliation(s)
- N Adachi
- Adachi High School, 2-347 Kakunai, Nihonmatsu, Fukushima 964-0904, Japan
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Kudo H, Tokonami S, Omori Y, Ishikawa T, Iwaoka K, Sahoo SK, Akata N, Hosoda M, Wanabongse P, Pornnumpa C, Sun Q, Li X, Akiba S. Comparative dosimetry for radon and thoron in high background radiation areas in China. Radiat Prot Dosimetry 2015; 167:155-159. [PMID: 25935013 DOI: 10.1093/rpd/ncv235] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The present study focuses on internal exposure caused by the inhalation of radon and thoron progenies because the internal exposures have not yet been clarified. For their dose assessment, radon, thoron and thoron progeny concentrations were measured by passive monitors over a long period (for 6 months). Consequently, radon, thoron and equilibrium equivalent thoron concentrations were given as 124 ± 78, 1247 ± 1189 and 7.8 ± 9.1 Bq m(-3), respectively. Annual effective doses are estimated to be 3.1 ± 2.0 mSv for radon and 2.2 ± 2.5 mSv for thoron. Total dose are estimated to be 5.3 ± 3.5 mSv a(-1). The present study has revealed that the radon dose was comparable with the thoron dose, and the total dose was ∼2 times higher than the worldwide average.
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Affiliation(s)
- H Kudo
- Graduate School of Health Sciences, Hirosaki University, Hirosaki, Japan
| | - S Tokonami
- Institute of Radiation Emergency Medicine Hirosaki University, Hirosaki, Japan
| | - Y Omori
- Fukushima Medical University, Fukushima, Japan
| | - T Ishikawa
- Fukushima Medical University, Fukushima, Japan
| | - K Iwaoka
- Institute of Radiation Emergency Medicine Hirosaki University, Hirosaki, Japan
| | - S K Sahoo
- National Institute of Radiological Sciences, Chiba, Japan
| | - N Akata
- National Institute for Fusion Science, Toki, Japan
| | - M Hosoda
- Graduate School of Health Sciences, Hirosaki University, Hirosaki, Japan
| | - P Wanabongse
- Institute of Radiation Emergency Medicine Hirosaki University, Hirosaki, Japan
| | - C Pornnumpa
- Graduate School of Health Sciences, Hirosaki University, Hirosaki, Japan
| | - Q Sun
- National Institute of Radiological Protection, Beijing, China
| | - X Li
- National Institute of Radiological Protection, Beijing, China
| | - S Akiba
- Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
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14
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Tanaka K, Hirayama K, Yonezawa H, Sato G, Toriyabe A, Kudo H, Hashimoto A, Matsumura M, Harada Y, Kurihara Y, Shirouzu T, Hosoya T. Revision of the Massarineae (Pleosporales, Dothideomycetes). Stud Mycol 2015; 82:75-136. [PMID: 26955201 PMCID: PMC4774272 DOI: 10.1016/j.simyco.2015.10.002] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We here taxonomically revise the suborder Massarineae (Pleosporales, Dothideomycetes, Ascomycota). Sequences of SSU and LSU nrDNA and the translation elongation factor 1-alpha gene (tef1) are newly obtained from 106 Massarineae taxa that are phylogenetically analysed along with published sequences of 131 taxa in this suborder retrieved from GenBank. We recognise 12 families and five unknown lineages in the Massarineae. Among the nine families previously known, the monophyletic status of the Dictyosporiaceae, Didymosphaeriaceae, Latoruaceae, Macrodiplodiopsidaceae, Massarinaceae, Morosphaeriaceae, and Trematosphaeriaceae was strongly supported with bootstrap support values above 96 %, while the clades of the Bambusicolaceae and the Lentitheciaceae are moderately supported. Two new families, Parabambusicolaceae and Sulcatisporaceae, are proposed. The Parabambusicolaceae is erected to accommodate Aquastroma and Parabambusicola genera nova, as well as two unnamed Monodictys species. The Parabambusicolaceae is characterised by depressed globose to hemispherical ascomata with or without surrounding stromatic tissue, and multi-septate, clavate to fusiform, hyaline ascospores. The Sulcatisporaceae is established for Magnicamarosporium and Sulcatispora genera nova and Neobambusicola. The Sulcatisporaceae is characterised by subglobose ascomata with a short ostiolar neck, trabeculate pseudoparaphyses, clavate asci, broadly fusiform ascospores, and ellipsoid to subglobose conidia with or without striate ornamentation. The genus Periconia and its relatives are segregated from the Massarinaceae and placed in a resurrected family, the Periconiaceae. We have summarised the morphological and ecological features, and clarified the accepted members of each family. Ten new genera, 22 new species, and seven new combinations are described and illustrated. The complete ITS sequences of nrDNA are also provided for all new taxa for use as barcode markers.
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Affiliation(s)
- K. Tanaka
- Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
| | - K. Hirayama
- Apple Experiment Station, Aomori Prefectural Agriculture and Forestry Research Center, 24 Fukutami, Botandaira, Kuroishi, Aomori 036-0332, Japan
| | - H. Yonezawa
- Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
| | - G. Sato
- Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
| | - A. Toriyabe
- Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
| | - H. Kudo
- Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
| | - A. Hashimoto
- Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
- The United Graduate School of Agricultural Sciences, Iwate University, 18-8 Ueda 3 chome, Morioka 020-8550, Japan
| | - M. Matsumura
- Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
| | - Y. Harada
- Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
| | - Y. Kurihara
- OPBIO Factory, 5-8 Suzaki, Uruma, Okinawa 904-2234, Japan
| | - T. Shirouzu
- Department of Botany, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan
| | - T. Hosoya
- Department of Botany, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan
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15
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Lian S, Yang H, Kudo H, Momose A, Yashiro W. An improved phase shift reconstruction algorithm of fringe scanning technique for X-ray microscopy. Rev Sci Instrum 2015; 86:023707. [PMID: 25725852 DOI: 10.1063/1.4908139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The X-ray phase imaging method has been applied to observe soft biological tissues, and it is possible to image the soft tissues by using the benefit of the so-called "Talbot effect" by an X-ray grating. One type of the X-ray phase imaging method was reported by combining an X-ray imaging microscope equipped by a Fresnel zone plate with a phase grating. Using the fringe scanning technique, a high-precision phase shift image could be obtained by displacing the grating step by step and measuring dozens of sample images. The number of the images was selected to reduce the error caused by the non-sinusoidal component of the Talbot self-image at the imaging plane. A larger number suppressed the error more but increased radiation exposure and required higher mechanical stability of equipment. In this paper, we analyze the approximation error of fringe scanning technique for the X-ray microscopy which uses just one grating and proposes an improved algorithm. We compute the approximation error by iteration and substitute that into the process of reconstruction of phase shift. This procedure will suppress the error even with few sample images. The results of simulation experiments show that the precision of phase shift image reconstructed by the proposed algorithm with 4 sample images is almost the same as that reconstructed by the conventional algorithm with 40 sample images. We also have succeeded in the experiment with real data.
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Affiliation(s)
- S Lian
- Midorino Research Corporation, 5-15-13 Chuo Rinkan Nishi, Yamato, Kanagawa 242-0008, Japan
| | - H Yang
- Midorino Research Corporation, 5-15-13 Chuo Rinkan Nishi, Yamato, Kanagawa 242-0008, Japan
| | - H Kudo
- Division of Information Engineering, Faculty of Engineering, Information and Systems, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8573, Japan
| | - A Momose
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - W Yashiro
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
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16
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Abbassi-Ghadi N, Veselkov K, Kumar S, Huang J, Jones E, Strittmatter N, Kudo H, Goldin R, Takáts Z, Hanna GB. Discrimination of lymph node metastases using desorption electrospray ionisation-mass spectrometry imaging. Chem Commun (Camb) 2014; 50:3661-4. [PMID: 24407514 DOI: 10.1039/c3cc48927b] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [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]
Abstract
Desorption electrospray ionisation mass spectrometry imaging (DESI-MSI) has been used for the identification of cancer within lymph nodes with accurate spatial distribution in comparison to gold standard matched immuno-histopathological images. The metabolic profile of the cancerous lymph nodes was similar to that of the primary tumour site.
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Affiliation(s)
- N Abbassi-Ghadi
- Department of Surgery and Cancer, Imperial College London, 10th Floor QEQM Wing, St Mary's Hospital, London, W2 1NY, UK.
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17
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Murakami M, Haba H, Goto S, Kanaya J, Kudo H. Production cross sections of niobium and tantalum isotopes in proton-induced reactions on natZr and natHf up to 14MeV. Appl Radiat Isot 2014; 90:149-57. [DOI: 10.1016/j.apradiso.2014.03.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Revised: 02/28/2014] [Accepted: 03/12/2014] [Indexed: 11/24/2022]
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18
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Suzuki S, Kudo H, Koyama T. Assessment of spontaneous platelet aggregation using laser light scattering in healthy subjects: an attempt to standardize. Int J Lab Hematol 2014; 36:676-85. [PMID: 24661348 DOI: 10.1111/ijlh.12208] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 02/10/2014] [Indexed: 11/30/2022]
Abstract
INTRODUCTION When measuring platelet aggregation using laser light scattering, small aggregates forming without the addition of agonists may be observed. This event is called 'spontaneous platelet aggregation (SPA)'. The platelet hyperactivity observed in arterial thrombotic diseases can be detected with relative ease by measuring SPA. Standardization is urgently needed because of differences between measurement conditions among various laboratories. METHODS We conducted a systematic study of factors that affect SPA measurement, compared SPA results to flow cytometry detection of surface antigens expressed on activated platelet membranes (P-selectin, activated glycoprotein IIb/IIIa), and determined conditions that yield stable measurements. RESULTS AND CONCLUSIONS We evaluated results from 125 healthy volunteers and established conditions for a stable measurement of SPA. As the occurrence of SPA tended to increase with age, we determined conditions valid for subjects aged 20-60 years. Blood should be collected using a syringe, and the sample should be prepared after allowing the whole blood to rest for 30 min after collection. To isolate platelet-rich plasma, a 2-mL tube should be used and centrifuged at 150 g. The sample should be stored at room temperature, the platelet count of the sample should be (250 ± 10) × 10(9) /L, and the measurement should be completed within 90 min of blood collection.
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Affiliation(s)
- S Suzuki
- Laboratory Molecular Genetics of Hematology, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan; Department of Clinical Laboratory Medicine, Faculty of Health Science Technology, Bunkyo Gakuin University, Bunkyo-ku, Tokyo, Japan
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Nagame Y, Nishinaka I, Tsukada K, Ichikawa S, Ikezoe H, Zhao YL, Oura Y, Sueki K, Nakahara H, Tanikawa M, Ohtsuki T, Takamiya K, Nakanishi K, Kudo H, Hamajima Y, Chung Y. Bimodal Nature of Low Energy Fission of Light Actinides. RADIOCHIM ACTA 2013. [DOI: 10.1524/ract.1997.78.special-issue.3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Y. Nagame
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki 319-11, Japan
| | - I. Nishinaka
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki 319-11, Japan
| | - K. Tsukada
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki 319-11, Japan
| | - S. Ichikawa
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki 319-11, Japan
| | - H. Ikezoe
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki 319-11, Japan
| | - Y. L. Zhao
- Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - Y. Oura
- Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - K. Sueki
- Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - H. Nakahara
- Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - M. Tanikawa
- Department of Chemistry, University of Tokyo, Bunkyo-ku, Tokyo 113, Japan
| | - T. Ohtsuki
- Laboratory of Nuclear Science, Tohoku University, Taihaku-ku, Sendai 982, Japan
| | - K. Takamiya
- Department of Chemistry, Osaka University, Toyonaka, Osaka 560, Japan
| | - K. Nakanishi
- Department of Chemistry, Osaka University, Toyonaka, Osaka 560, Japan
| | - H. Kudo
- Department of Chemistry, Niigata University, Niigata 950-21, Japan
| | - Y. Hamajima
- Department of Chemistry, Kanazawa University, Kanazawa 920-11, Japan
| | - Y.H. Chung
- Department of Chemistry,Hallym University,Chuncheon,Kangwon-Do 200-702,Korea
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Podlasz P, Sallinen V, Chen YC, Kudo H, Fedorowska N, Panula P. Galanin gene expression and effects of its knock-down on the development of the nervous system in larval zebrafish. J Comp Neurol 2013; 520:3846-62. [PMID: 22522977 DOI: 10.1002/cne.23131] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Despite the known importance of galanin in the nervous system of vertebrates, the galanin gene structure and expression and the consequences of galanin deficiency in developing zebrafish are unknown. We cloned the galanin gene and analyzed its expression by using in situ hybridization, PCR, and immunocytochemistry throughout the early development of zebrafish until the end of the first week of life. The single zebrafish galanin gene encoded for a single amidated galanin peptide and a galanin message-associated peptide. Two forms resulting from alternative processing were identified. Galanin mRNA was maternally expressed and found in developing fish throughout early development. In situ hybridization showed the first positive neurons in three groups in the brain at 28 hours postfertilization. At 2 days postfertilization, three prosencephalic neuron groups were seen in the preoptic area and in rostral and caudal periventricular hypothalamus. In addition, two other groups of weakly stained neurons were visible, one in the midbrain and another in the hindbrain. Translation inhibition of galanin mRNA with morpholino oligonucleotides caused complete disappearance of galanin immunoreactivity in the brain until 7 dpf and did not induce known cascades of nonspecific pathways or morphological abnormalities. A minor disturbance of sensory ganglia was found. Galanin knockdown did not alter the expression of tyrosine hydroxylases 1 and 2, choline acetyltransferase, histidine decarboxylase, or orexin mRNA. The results suggest that galanin does not regulate the development of these key markers of specific neurons, although galanin-expressing fibers were in a close spatial proximity to several neurons of these neuronal populations.
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Affiliation(s)
- P Podlasz
- Neuroscience Center and Institute of Biomedicine, Anatomy, University of Helsinki, FIN-00014 Helsinki, Finland
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Nozokido T, Ishino M, Kudo H, Bae J. Note: Near-field imaging of thermal radiation at low temperatures by passive millimeter-wave microscopy. Rev Sci Instrum 2013; 84:036103. [PMID: 23556855 DOI: 10.1063/1.4794911] [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: 06/02/2023]
Abstract
Imaging of thermal radiation with a spatial resolution below the diffraction limit is demonstrated with a passive millimeter-wave microscope. This technique utilizes a sensitive radiometric receiver in combination with a scanning near-field microscope. Experiments were performed at 50 GHz (λ = 6 mm) with sample temperatures ranging from room temperature down to 160 K, and the performance was shown to be superior to that achieved with passive imaging systems in the infrared region. The images are affected by non-uniformities in the transmission of thermal radiation from the sample to the receiver via the near-field probe and the reflection of thermal radiation back to the receiver from the probe. The effects of these non-uniformities were successfully removed using a sample image acquired by active measurements using a vector network analyzer.
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Affiliation(s)
- T Nozokido
- Graduate School of Science and Engineering for Research, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan.
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Kudo H, Fukushima S, Masuguchi S, Sakai K, Jinnin M, Ihn H. Cutaneous type adult T-cell leukaemia/lymphoma successfully treated with narrowband ultraviolet B phototherapy. Clin Exp Dermatol 2011; 37:183-4. [DOI: 10.1111/j.1365-2230.2011.04141.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Oka T, Oshima A, Motohashi R, Seto N, Watanabe Y, Kobayashi R, Saito K, Kudo H, Murakami T, Washio M, Hama Y. Changes to the chemical structure of isotactic-polypropylene induced by ion-beam irradiation. Radiat Phys Chem Oxf Engl 1993 2011. [DOI: 10.1016/j.radphyschem.2010.07.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Endo T, Todo T, Lokman PM, Kudo H, Ijiri S, Adachi S, Yamauchi K. Androgens and Very Low Density Lipoprotein Are Essential for the Growth of Previtellogenic Oocytes from Japanese Eel, Anguilla japonica, In Vitro. Biol Reprod 2010; 84:816-25. [DOI: 10.1095/biolreprod.110.087163] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Kitamura N, Hasebe T, Kasai R, Kasuya S, Nakatsuka T, Kudo H, Higuchi M, Nakano K, Hiruta N, Kameda N, Ogata K, Watanabe Y, Morita H, Terada H. Pilocytic Astrocytomas in Elderly Adults. Neuroradiol J 2010; 23:690-5. [DOI: 10.1177/197140091002300607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Accepted: 10/27/2010] [Indexed: 11/16/2022] Open
Affiliation(s)
- N. Kitamura
- Department of Radiology, Toho University Sakura Medical Center; Chiba, Japan
| | - T. Hasebe
- Department of Radiology, Toho University Sakura Medical Center; Chiba, Japan
| | - R. Kasai
- Department of Radiology, Toho University Sakura Medical Center; Chiba, Japan
| | - S. Kasuya
- Department of Radiology, Toho University Sakura Medical Center; Chiba, Japan
| | - T. Nakatsuka
- Department of Radiology, Toho University Sakura Medical Center; Chiba, Japan
| | - H. Kudo
- Department of Radiology, Toho University Sakura Medical Center; Chiba, Japan
| | - M. Higuchi
- Department of Radiology, Tachikawa Hospital; Tokyo, Japan
| | - K. Nakano
- Department of Radiology, Tachikawa Hospital; Tokyo, Japan
| | - N. Hiruta
- Department of Pathology, Toho University Sakura Medical Center; Chiba, Japan
| | - N. Kameda
- Department of Pathology, Toho University Sakura Medical Center; Chiba, Japan
| | - K. Ogata
- Department of Pathology, Tachikawa Hospital; Tokyo, Japan
| | - Y. Watanabe
- Department of Radiology, Toho University Sakura Medical Center; Chiba, Japan
| | - H. Morita
- Department of Radiology, Toho University Sakura Medical Center; Chiba, Japan
| | - H. Terada
- Department of Radiology, Toho University Sakura Medical Center; Chiba, Japan
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Karino K, Shimada Y, Kudo H, Sato A. Relative importance of the area and intensity of the orange spots of male guppies Poecilia reticulata as mating traits preferred by females. J Fish Biol 2010; 77:299-307. [PMID: 20646155 DOI: 10.1111/j.1095-8649.2010.02688.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Digitally modified videos of male guppies Poecilia reticulata were used to examine the relative importance of the area and intensity of the orange spots as mating traits preferred by females. The females prioritized the area of the orange spots over intensity for their mate preference.
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Affiliation(s)
- K Karino
- Department of Biology, Tokyo Gakugei University, Nukui-kita 4-1-1, Koganei, Tokyo 184-8501, Japan.
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Panula P, Chen YC, Priyadarshini M, Kudo H, Semenova S, Sundvik M, Sallinen V. The comparative neuroanatomy and neurochemistry of zebrafish CNS systems of relevance to human neuropsychiatric diseases. Neurobiol Dis 2010; 40:46-57. [PMID: 20472064 DOI: 10.1016/j.nbd.2010.05.010] [Citation(s) in RCA: 296] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2010] [Revised: 05/05/2010] [Accepted: 05/06/2010] [Indexed: 12/20/2022] Open
Abstract
Modulatory neurotransmitters which signal through G protein-coupled receptors control brain functions which deteriorate in degenerative brain diseases. During the past decade many of these systems have been mapped in the zebrafish brain. The main architecture of the systems in zebrafish brain resembles that of the mammals, despite differences in the development of the telencephalon and mesodiencephalon. Modulatory neurotransmitters systems which degenerate in human diseases include dopamine, noradrenaline, serotonin, histamine, acetylcholine and orexin/hypocretin. Although the number of G protein-coupled receptors in zebrafish is clearly larger than in mammals, many receptors have similar expression patterns, binding and signaling properties as in mammals. Distinct differences between mammals and zebrafish include duplication of the tyrosine hydroxylase gene in zebrafish, and presence of one instead of two monoamine oxidase genes. Zebrafish are sensitive to neurotoxins including MPTP, and exposure to this neurotoxin induces a decline in dopamine content and number of detectable tyrosine hydroxylase immunoreactive neurons in distinct nuclei. Sensitivity to important neurotoxins, many available genetic methods, rapid development and large-scale quantitative behavioral methods in addition to advanced quantitative anatomical methods render zebrafish an optimal organism for studies on disease mechanisms.
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Affiliation(s)
- P Panula
- Neuroscience Center, University of Helsinki, POB 63, FIN-00014 University of Helsinki, Finland.
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Iguchi S, Chu MK, Takahashi D, Arakawa T, Kudo H, Mitsubayashi K. Soft-MEMS Glucose Sensor with Functional Polymers. J PHOTOPOLYM SCI TEC 2010. [DOI: 10.2494/photopolymer.23.167] [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: 11/09/2022]
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Kudo H, Sudo S, Oka T, Hama Y, Oshima A, Washio M, Murakami T. Ion-beam irradiation effects on polyimide-UV–vis and infrared spectroscopic study. Radiat Phys Chem Oxf Engl 1993 2009. [DOI: 10.1016/j.radphyschem.2009.06.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Haba H, Tsukada K, Asai M, Toyoshima A, Ishii Y, Toume H, Sato T, Nishinaka I, Ichikawa T, Ichikawa S, Nagame Y, Sato W, Matsuo K, Kitamoto Y, Tashiro Y, Shinohara A, Saito J, Ito M, Ikezawa T, Sakamaki M, Goto S, Kudo H, Kikunaga H, Arai M, Kamataki S, Yokoyama A, Akiyama K, Sueki K, Oura Y, Schädel M, Brüchle W, Kratz JV. Extraction behavior of rutherfordium into tributylphosphate from hydrochloric acid. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2007.95.1.1] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The extraction behavior of rutherfordium (Rf) into tributylphosphate (TBP) from hydrochloric acid (HCl) has been studied together with those of the lighter group-4 elements Zr and Hf. The extractability of261Rf,169Hf, and85Zr into TBP was investigated under identical conditions in 7.2–8.0 M HCl by on-line reversed-phase extraction chromatography. The percent extractions of Rf, Hf, and Zr into the TBP resin increase steeply with increasing HCl concentration, and the order of extraction is Zr > Hf ≈ Rf. By considering the order of chloride complexation among these elements, it is suggested that the stability of the TBP complex of Rf tetrachloride is lower than those of Zr and Hf.
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Kudo H, Doi Y, Ueda H, Kaeriyama M. Molecular characterization and histochemical demonstration of salmon olfactory marker protein in the olfactory epithelium of lacustrine sockeye salmon (Oncorhynchus nerka). Comp Biochem Physiol A Mol Integr Physiol 2009; 154:142-50. [PMID: 19501666 DOI: 10.1016/j.cbpa.2009.05.123] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2009] [Revised: 05/27/2009] [Accepted: 05/27/2009] [Indexed: 10/20/2022]
Abstract
Despite the importance of olfactory receptor neurons (ORNs) for homing migration, the expression of olfactory marker protein (OMP) is not well understood in ORNs of Pacific salmon (genus Oncorhynchus). In this study, salmon OMP was characterized in the olfactory epithelia of lacustrine sockeye salmon (O. nerka) by molecular biological and histochemical techniques. Two cDNAs encoding salmon OMP were isolated and sequenced. These cDNAs both contained a coding region encoding 173 amino acid residues, and the molecular mass of the two proteins was calculated to be 19,581.17 and 19,387.11Da, respectively. Both amino acid sequences showed marked homology (90%). The protein and nucleotide sequencing demonstrates the existence of high-level homology between salmon OMPs and those of other teleosts. By in situ hybridization using a digoxigenin-labeled salmon OMP cRNA probe, signals for salmon OMP mRNA were observed preferentially in the perinuclear regions of the ORNs. By immunohistochemistry using a specific antibody to salmon OMP, OMP-immunoreactivities were noted in the cytosol of those neurons. The present study is the first to describe cDNA cloning of OMP in salmon olfactory epithelium, and indicate that OMP is a useful molecular marker for the detection of the ORNs in Pacific salmon.
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Affiliation(s)
- H Kudo
- Laboratory of Strategic Studies on Marine Bioresource Conservation and Management, Faculty of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Japan.
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Kudo H, Liu J, Jansen EJR, Ozawa A, Panula P, Martens GJM, Lindberg I. Identification of proSAAS homologs in lower vertebrates: conservation of hydrophobic helices and convertase-inhibiting sequences. Endocrinology 2009; 150:1393-9. [PMID: 18948394 PMCID: PMC2654743 DOI: 10.1210/en.2008-1301] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The prohormone convertases (PCs) 1/3 and 2 accomplish the major proteolytic cleavage events in neuroendocrine tissues; each of these convertases has a small associated binding protein that inhibits convertase action in the secretory pathway. The proSAAS protein binds to PC1/3, whereas the 7B2 protein binds to PC2. However, both convertase-binding proteins are more widely expressed than their cognate enzymes, suggesting that they may perform other functions as well. All known mammalian proSAASs are over 85% conserved; thus, identifying functionally important segments has been impossible. Here, we report the first identification of nonmammalian proSAAS molecules, from Xenopus and zebrafish (Danio rerio). Although these two proteins show an overall amino acid sequence identity of only 29 and 30% with mouse proSAAS, two 14-16 residue hydrophobic segments (predicted to form alpha-helices) and two, nine through 11 residue sequences containing basic convertase cleavage sites are highly conserved; therefore, these sequences may be of functional importance. Confidence that these nonmammalian molecules represent authentic proSAAS is supported by the finding that both inhibit mouse PC1/3 with nanomolar inhibition constants; human furin was not inhibited. In vitro, the two proteins were cleaved by PC2 and furin to three or more peptide products. Both zebrafish and Xenopus proSAAS exhibited neural and endocrine distributions, as assessed by in situ and PCR experiments, respectively. In summary, the identification of proSAAS molecules in lower vertebrates provides clues as to functional regions within this widely expressed neuroendocrine protein.
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Affiliation(s)
- H Kudo
- Department of Anatomy and Neurobiology, University of Maryland-Baltimore, Baltimore, Maryland 21201, USA
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Chikaraishi T, Sasaki H, Tsutsumi H, Miyano S, Nakazawa R, Nakano T, Kitajima K, Kudo H, Takahashi T, Sato Y, Kimura K. ABO blood type incompatible kidney transplantation without splenectomy prepared with plasma exchange and rituximab. Transplant Proc 2009; 40:3445-7. [PMID: 19100409 DOI: 10.1016/j.transproceed.2008.06.110] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2008] [Accepted: 06/16/2008] [Indexed: 12/28/2022]
Abstract
We have designed a protocol for ABO-incompatible kidney transplantations based on preoperative plasmapheresis with a tacrolimus/mycophenolate mofetil/methylprednisolone/basiliximab protocol using low-dose rituximab (200 mg/body) instead of splenectomy to prevent antibody-mediated acute rejection. Eight patients successfully received transplants with this protocol. The titers of anti-A and -B antibodies as well as the number of CD20(+) cells were readily maintained at a low level posttransplantation. There were no side effects. All patients have renal transplant function with a follow-up of 1-34 months.
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Affiliation(s)
- T Chikaraishi
- Department of Urology, St. Marianna University, Kawasaki, Kanagawa, Japan.
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Abstract
The case of incomplete tomographic data for a compactly supported attenuation function is studied. When the attenuation function is a priori known in a subregion, we show that a reduced set of measurements is enough to uniquely determine the attenuation function over all the space. Furthermore, we found stability estimates showing that reconstruction can be stable near the region where the attenuation is known. These estimates also suggest that reconstruction stability collapses quickly when approaching the set of points that are viewed under less than 180 degrees. This paper may be seen as a continuation of the work "Truncated Hilbert transform and Image reconstruction from limited tomographic data" that was published in Inverse Problems in 2006. This continuation tackles new cases of incomplete data that could be of interest in applications of computed tomography.
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Affiliation(s)
- M Courdurier
- Department of Applied Physics and Applied Mathematics, Columbia University, U.S.A
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Sasaki H, Chikaraishi T, Furuhata S, Tsutsumi H, Miyano S, Nakazawa R, Nakano T, Kudo H, Kitajima K, Takahashi T, Satoh Y, Kimura K. Autologous Blood Transfusion for Kidney Transplant Recipients. Transplant Proc 2008; 40:1371-2. [DOI: 10.1016/j.transproceed.2008.03.136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2007] [Accepted: 03/06/2008] [Indexed: 11/17/2022]
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36
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Fukuta K, Orui T, Tanaka K, Sasaki M, Endo H, Ismail DB, Kudo H, Kimura J. Novel erythrocyte pits in the small tropical ruminant, lesser mouse deer. Anat Histol Embryol 2008; 36:424-7. [PMID: 18021351 DOI: 10.1111/j.1439-0264.2007.00797.x] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We examined unique erythrocyte pits of the peripheral blood and bone marrow in the lesser mouse deer, Tragulus javanicus, using scanning electron microscope (SEM) and transmission electron microscope (TEM). Under the SEM observation, the pit was observed as a hole on both mature erythrocytes of the peripheral blood and immature erythrocytes of the bone marrow. By the TEM, the mature erythrocytes had a vacuole, which showed complicated shape and occupied considerable space within the cytoplasm. The vacuole was communicated extracellularly by perforation, which corresponded to the hole on the cell surface. In the bone marrow, erythroblast and reticulocytes have a cytoplasmic vacuole. This abnormal feature of the erythrocytes is peculiar to the mouse deer, and not found in other tropical ruminants. Despite the disadvantage of volume loss from the small erythrocytes, the mouse deer were healthy and showed no signs of anaemia.
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Affiliation(s)
- K Fukuta
- Laboratory of Animal Morphology and Function, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan.
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Kudo H, Suzuki S, Watanabe A, Kikuchi H, Sassa S, Sakamoto S. Effects of colloidal iron overload on renal and hepatic siderosis and the femur in male rats. Toxicology 2008; 246:143-7. [PMID: 18289763 DOI: 10.1016/j.tox.2008.01.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2007] [Revised: 12/26/2007] [Accepted: 01/07/2008] [Indexed: 01/19/2023]
Abstract
Genetic hemochromatosis is an iron overload disorder, and osteopenic and osteoporotic. Femoral neck bone mineral density (BMD) appears to fall with rising hepatic iron concentrations. A critical role for iron in mediating tissue injury is played via hydroxyl radical formation in nephrotoxicity. We investigated the effects of a colloidal iron overload on renal function, organ siderosis, and femoral bone in male rats. Iron overload reduced body growth, and increased the weights of the liver and spleen. Marked deposition of iron was noted in liver and kidney. Activities of lactate dehydrogenase and alkaline phosphatase were decreased, and the concentrations of blood urea nitrogen and creatinine were increased with the reduction in plasma calcium and inorganic phosphorus levels, i.e. functions of the liver and kidney might be affected by reactive oxygen species such as the superoxide radical, H2O2, and the hydroxyl radical produced by overloaded iron. Damage to the proximal tubular epithelial cells of the kidney and a loss of connectivity of cancellous bone in the epiphysis and of trabecular bone in the metaphysis of the distal femur were observed in iron-overloaded rats with a reduction of femoral bone mineral density, i.e. reabsorption of calcium from the proximal tubular epithelial cells of the kidney might be affected and urinary discharge of calcium might be elevated. It was suggested that iron overload gave rise to osteoporosis combined with renal dysfunction and liver iron overload syndrome.
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Affiliation(s)
- H Kudo
- Department of Clinical Medicine, Bunkyo Gakuin University, Tokyo, Japan
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Toyoshima A, Haba H, Tsukada K, Asai M, Akiyama K, Goto S, Ishii Y, Nishinaka I, Sato TK, Nagame Y, Sato W, Tani Y, Hasegawa H, Matsuo K, Saika D, Kitamoto Y, Shinohara A, Ito M, Saito J, Kudo H, Yokoyama A, Sakama M, Sueki K, Oura Y, Nakahara H, Schädel M, Brüchle W, Kratz JV. Hexafluoro complex of rutherfordium in mixed HF/HNO3 solutions. RADIOCHIM ACTA 2008. [DOI: 10.1524/ract.2008.1474] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
INTRODUCTION Skin punctures at alternative sites can reduce the pain associated with self-monitoring of blood glucose (SMBG). However, delays in detection of blood glucose at alternative sites during rapid systemic blood glucose change have been reported. Accordingly, we developed a novel method of finger pricking and tested it to see if it would both reduce or eliminate pain and accurately reflect systemic glucose levels, even during rapid changes. METHODS Each of 35 healthy volunteers (10 females and 25 males; mean age 36.6 years, range 18-82 years) received 5 serial punctures from a lancet device on randomly selected fingers. The puncture target was the dorsal side of the finger between the nail and the distal finger joint. We used a lancet device designed for accurate punctures of 0.2, 0.3, 0.4, 0.5 and 0.6 mm depths. Immediately afterward, as a control, a conventional fingertip puncture was done on the front of a 6th finger. After each puncture, subjects were asked whether or not they felt pain. RESULTS Following punctures at depths of 0.2 mm and 0.3 mm, respectively, 31 of 35 subjects (89%) and 33 of 35 subjects (94%) felt no pain. Following conventional punctures, all 35 subjects (100%) felt pain. Blood sample volumes> or =2microL were obtained in all cases except for two punctures at 0.2 mm depth. Blood glucose levels did not differ with differing puncture sites, (conventional fingertip sites vs. alternative sites used in this study). CONCLUSIONS Our findings demonstrate that 0.2 and 0.3 mm punctures at our alternative finger site - the dorsal side of the finger between the nail and the distal finger joint - can provide blood samples sufficient for SMBG, substantially redu-ces the proportion of subjects who experience pain, and accurately reflects systemic glucose levels.
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Affiliation(s)
- T Nakayama
- Department of Health Education, Graduate School of Health Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
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Takeda A, Watanabe Y, Uehara T, Maruyama T, Tanaka H, Matsuzaki H, Arima H, Natsune T, Kudo H, Sakama A, Tohnosu N, Shimada H, Sato H. Successful surgical resection of a huge gastrointestinal stromal tumor of the third portion of the duodenum. J Gastroenterol Hepatol 2007; 22:283-4. [PMID: 17295890 DOI: 10.1111/j.1440-1746.2006.04484.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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Matsubara K, Cho A, Okazumi S, Makino H, Mochizuki R, Shuto K, Kudo H, Tohma T, Gunji H, Hayano K, Yanagawa N, Ochiai T. Anatomy of the middle hepatic vein: applications to living donor liver transplantation. Hepatogastroenterology 2006; 53:933-7. [PMID: 17153456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
BACKGROUND/AIMS In living donor liver transplantation, right lobe graft without a middle hepatic vein (MHV) results in potential venous congestion in the anterior segment, while transplantation with MHV represents an important ethical issue from the perspective of donor safety. The present study assessed ramification patterns of the MHV and relationships between hepatic venous drainage of the anterior and medial segments, to plan optimal harvesting of the right lobe as a graft. METHODOLOGY The authors reviewed 102 patients with normal livers who underwent contrast-enhanced multi-detector row CT. RESULTS The hepatic vein that drained S4sup (V4sup) joined only the left hepatic vein (LHV) in 60 patients (58%), only the MHV in 25 (25%), and both LHV and MHV in 17 (17%). Both V4sup and the hepatic vein that drained S8 (V8) joined the MHV in 42 patients (42%), and V8 joined proximal to V4sup in 18 of these 42 patients. CONCLUSIONS In donation of a right lobe graft including MHV, preservation of V4sup in the remnant donor liver seems possible in most donors.
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Affiliation(s)
- Katsuhiho Matsubara
- Department of Frontier Surgery, Graduate School of Medicine, Frontier Medical Engineering, Chiba University, Chiba, Japan.
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Abstract
We studied 11 patients (14 elbows) with gross rheumatoid deformity of the elbow, treated by total arthroplasty using the Kudo type-5 unlinked prosthesis, and who were evaluated between five and 11 years after operation. Massive bone defects were augmented by autogenous bone grafts. There were no major complications such as infection, subluxation or loosening. In most elbows relief from pain and stability were achieved. The results, according to the Mayo Elbow Performance Score, were excellent in eight, good in five and fair in one. In most elbows there was minimal or no resorption of the grafted bone. There were no radiolucent lines around the stems of the cementless components. This study shows that even highly unstable rheumatoid elbows can be replaced successfully using an unlinked prosthesis, with augmentation by grafting for major defects of bone.
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Affiliation(s)
- T Mori
- Department of Orthopaedic Surgery, National Hospital Organization, Sagamihara Hospital, 18-1 Sakuradai, Sagamihara City, Kanagawa Prefecture 228-8522, Japan.
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Tanaka N, Sakahashi H, Ishii S, Kudo H. Comparison of two types of ulnar component in type-5 Kudo total elbow arthroplasty in patients with rheumatoid arthritis. ACTA ACUST UNITED AC 2006; 88:341-4. [PMID: 16498008 DOI: 10.1302/0301-620x.88b3.17017] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [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: 11/05/2022]
Abstract
The purpose of this study was to assess the long-term results (more than ten years) of two types of cemented ulnar component with type-5 Kudo total elbow arthroplasty in a consecutive series of 56 patients (60 elbows) with rheumatoid arthritis, and to compare the results in elbows above and below a Larsen grade IV. There was no radiolucency around the humeral component. Patients in whom a metal-backed ulnar component and a porous-coated stem were used had better clinical results and significantly less progression of radiolucent line formation around the ulnar component. They also had a significantly better long-term survival than patients with an all-polyethylene ulnar component. The clinical results of arthroplasty using all-polyethylene ulnar components were inferior, regardless of the degree of joint destruction. We conclude that the type-5 Kudo total elbow arthroplasty with cementless fixation of the porous-coated humeral component and cemented fixation of a metal-backed ulnar component is acceptable and well-tolerated by rheumatoid patients.
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Affiliation(s)
- N Tanaka
- Sapporo Gorinbashi, Orthopedic Hospital in Gorinbashi Health Care, Facilities and Hospitals, and Department of Orthopedic Surgery, School of Medicine, Sapporo Medical University, Hokkaido 005-0802, Japan.
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Bashar M, Ohnishi N, Matsumoto T, Takeuchi Y, Kudo H, Agusa K. Image retrieval by pattern categorization using wavelet domain perceptual features with LVQ neural network. Pattern Recognit Lett 2005. [DOI: 10.1016/j.patrec.2005.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tohma T, Okazumi S, Makino H, Cho A, Mochizuki R, Shuto K, Kudo H, Matsubara K, Gunji H, Matsubara H, Ochiai T. Overexpression of glucose transporter 1 in esophageal squamous cell carcinomas: a marker for poor prognosis. Dis Esophagus 2005; 18:185-9. [PMID: 16045581 DOI: 10.1111/j.1442-2050.2005.00489.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [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] [Indexed: 12/11/2022]
Abstract
Recently, Glut1 (human erythrocyte glucose transporter) expression has been demonstrated in various tumors. The aim of this study is to evaluate the prognostic utility of Glut1 expression in esophageal carcinomas. We studied Glut1 expression by immunohistochemistry of paraffin sections from 63 esophageal squamous cell carcinomas. All 63 carcinomas expressed Glut1. The mean percentage of positively stained tumor cells was 77.8% (median, 84.7%). There were two staining patterns in positive cells: 'strongly positive' and 'weakly positive'. The percentage of 'strongly positive' cells (%Glut1-SP) ranged from 0% to 95.6% (mean, 32.3%; median, 27.4%). The 5-year survival rate for patients with a high %Glut1-SP (> 30%) was significantly lower than that for patients with a low %Glut1-SP (< 30%) (P < 0.01). Statistical analysis revealed that the relative risk of death for patients with high %Glut1-SP was 2.02 times that for patients with low %Glut1-SP (P = 0.064), suggesting a possible independent predictive value for %Glut1-SP.
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Affiliation(s)
- T Tohma
- Department of Academic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
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Cho A, Okazumi S, Makino H, Miura F, Shuto K, Mochiduki R, Tohma T, Kudo H, Matsubara K, Gunji H, Yamamoto H, Ryu M, Ochiai T. Anterior fissure of the right liver--the third door of the liver. ACTA ACUST UNITED AC 2005; 11:390-6. [PMID: 15619014 DOI: 10.1007/s00534-004-0919-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2003] [Accepted: 04/14/2004] [Indexed: 11/24/2022]
Abstract
BACKGROUND/PURPOSE Although the anterior segment of the liver has been divided into segments 8 and 5, we have, during surgical or interventional procedures, occasionally encountered patients in whom the right anterior portal vein does not bifurcate into the superior and inferior branches. Thus, the in vivo anatomy of the right liver was reevaluated to clarify the segmental anatomy. METHODS We evaluated the hepatic venous and portal ramification patterns, using three-dimensional images reconstructed from computed tomography. In addition, liver volumetry was performed. RESULTS All branches arising from the anterior trunk were divided into two groups: the right ventral portal branches (RVP) and the right dorsal portal branches (RDP), and the anterior fissure vein crossed between the RVP and RDP. The ventral and dorsal regions of the anterior segment were approximately equal from a volumetric point of view. CONCLUSIONS The anterior segment seems to be divided into the ventral and dorsal segments by the anterior fissure, and we propose a reclassification of the right liver that divides the right liver into three segments. Dissection of the parenchyma along the anterior fissure makes the third door of the liver open, resulting in the exposing of all Glissonian pedicles of the right liver. The introduction of our segmental anatomy and surgical procedure will allow more systematic and limited liver resections.
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Affiliation(s)
- Akihiro Cho
- Department of Surgery, Seirei Sakura Hospital, 2-36-2 Ebaradai, Sakura, Chiba 285-8765, Japan
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Cho A, Okazumi S, Miyazawa Y, Makino H, Miura F, Ohira G, Yoshinaga Y, Tohma T, Kudo H, Matsubara K, Ryu M, Ochiai T. Proposal for a reclassification of liver based anatomy on portal ramifications. Am J Surg 2005; 189:195-9. [PMID: 15720989 DOI: 10.1016/j.amjsurg.2004.04.014] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2003] [Revised: 04/15/2004] [Accepted: 04/15/2004] [Indexed: 01/27/2023]
Abstract
BACKGROUND Portal branching patterns that differ from those previously described are occasionally encountered during liver surgery. METHODS A total of 60 patients with normal intrahepatic venous anatomy underwent helical computed tomography during arterial portography (CTAP). Next, 3 dimensional portograms were reconstructed to verify the locations of the portal veins. Portal branching patterns in the right hemiliver were assessed. RESULTS In all 60 patients examined, the right anterior portal vein bifurcated into the ventral and dorsal branches. In 42 (70%) of 60 patients, some branches arose from the right posterior portal trunk. Between 1 and 3 branches (mean 2.3 branches per patient) coursed cranially, between 2 and 5 branches (mean 3.2 branches per patient) coursed caudally, and between 1 and 2 branches (mean 1.3 branches per patient) coursed laterally. CONCLUSIONS We propose that the right liver should be divided into 3 segments, which are designated as the right anterior, middle, and posterior segments.
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Affiliation(s)
- Akihiro Cho
- Department of Academic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuou-ku Chiba 260-0856, Japan.
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Han Z, Katsumura Y, Lin M, He H, Muroya Y, Kudo H. Temperature and pressure dependence of the absorption spectra and decay kinetics of solvated electrons in ethanol from 22 to 250°C studied by pulse radiolysis. Chem Phys Lett 2005. [DOI: 10.1016/j.cplett.2005.01.095] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tohma T, Okazumi S, Makino H, Cho A, Mochiduki R, Shuto K, Kudo H, Matsubara K, Gunji H, Ochiai T. Relationship between glucose transporter, hexokinase and FDG-PET in esophageal cancer. Hepatogastroenterology 2005; 52:486-90. [PMID: 15816463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
BACKGROUND/AIMS 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) has been established as a powerful diagnosing modality in clinical oncology. FDG accumulation has been demonstrated to correlate with hexokinase activity. However, recent reports suggest that glucose transporters participate in FDG accumulation. The aim of this study is to evaluate glucose transporter and hexokinase expression and clarify the relationship between them and FDG accumulation. METHODOLOGY FDG-PET was performed in 72 preoperative patients with esophageal cancer. The ratios of tumor radioactivity to plasma radioactivity (Ci/Cp values) were obtained 60 minutes after administration. We studied the expressions of glucose transporter 1 (Glut1) and type-II hexokinase (HK-II) by immunohistochemical analysis of the resected specimen. The percentages of cells expressing Glut1 and HK-II were scored on a 5-point scale (1=0-20%, 2=20-40%, 3=40-60%, 4=60-80%, 5=80-100%). Then the 3 scores obtained from 3 counting trials were averaged to give the Glut-index and HK-index. RESULTS All esophageal cancers showed marked FDG accumulation. All 72 cancers expressed Glut1 and 71 of 72 cancers expressed HK-II. The Glut-index had a weak correlation with the Ci/Cp value (not significant). The HK-index had a close positive correlation with the Ci/Cp value (p<0.005). CONCLUSIONS FDG accumulation correlates more with type-II hexokinase expression than with glucose transporter 1 expression.
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Affiliation(s)
- Takayuki Tohma
- Department of Academic Surgery, Chiba University Graduate School of Medicine, Chiba-shi, Chiba, Japan.
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Kawai K, Yata Y, Hirano K, Yasumura S, Kudo H, Tajiri K, Tokimitsu Y, Atarashi Y, Minemura M, Shimizu Y, Takahara T, Sugiyama T. A case of diaphragmatic hernia induced by percutaneous radiofrequency ablation under the artificial pleural effusion for the hepatocellular carcinomas after 13 month period. ACTA ACUST UNITED AC 2005. [DOI: 10.2957/kanzo.46.665] [Citation(s) in RCA: 2] [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: 02/08/2023]
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