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Kubo T, Sunami K, Koyama T, Kitami M, Fujiwara Y, Kondo S, Yonemori K, Noguchi E, Morizane C, Goto Y, Maejima A, Iwasa S, Hamaguchi T, Kawai A, Namikawa K, Arakawa A, Sugiyama M, Ohno M, Yoshida T, Hiraoka N, Yoshida A, Yoshida M, Nishino T, Furukawa E, Narushima D, Nagai M, Kato M, Ichikawa H, Fujiwara Y, Kohno T, Yamamoto N. The impact of rare cancer and early-line treatments on the benefit of comprehensive genome profiling-based precision oncology. ESMO Open 2024; 9:102981. [PMID: 38613908 PMCID: PMC11033064 DOI: 10.1016/j.esmoop.2024.102981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 07/11/2023] [Revised: 03/04/2024] [Accepted: 03/04/2024] [Indexed: 04/15/2024] Open
Abstract
BACKGROUND Comprehensive genome profiling (CGP) serves as a guide for suitable genomically matched therapies for patients with cancer. However, little is known about the impact of the timing and types of cancer on the therapeutic benefit of CGP. MATERIALS AND METHODS A single hospital-based pan-cancer prospective study (TOP-GEAR; UMIN000011141) was conducted to examine the benefit of CGP with respect to the timing and types of cancer. Patients with advanced solid tumors (>30 types) who either progressed with or without standard treatments were genotyped using a single CGP test. The subjects were followed up for a median duration of 590 days to examine therapeutic response, using progression-free survival (PFS), PFS ratio, and factors associated with therapeutic response. RESULTS Among the 507 patients, 62 (12.2%) received matched therapies with an overall response rate (ORR) of 32.3%. The PFS ratios (≥1.3) were observed in 46.3% (19/41) of the evaluated patients. The proportion of subjects receiving such therapies in the rare cancer cohort was lower than that in the non-rare cancer cohort (9.6% and 17.4%, respectively; P = 0.010). However, ORR of the rare cancer patients was higher than that in the non-rare cancer cohort (43.8% and 20.0%, respectively; P = 0.046). Moreover, ORR of matched therapies in the first or second line after receiving the CGP test was higher than that in the third or later lines (62.5% and 21.7%, respectively; P = 0.003). Rare cancer and early-line treatment were significantly and independently associated with ORR of matched therapies in multivariable analysis (P = 0.017 and 0.004, respectively). CONCLUSION Patients with rare cancer preferentially benefited from tumor mutation profiling by increasing the chances of therapeutic response to matched therapies. Early-line treatments after profiling increase the therapeutic benefit, irrespective of tumor types.
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Affiliation(s)
- T Kubo
- Department of Laboratory Medicine, National Cancer Center Hospital, Tokyo; Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo
| | - K Sunami
- Department of Laboratory Medicine, National Cancer Center Hospital, Tokyo; Division of Genome Biology, National Cancer Center Research Institute, Tokyo
| | - T Koyama
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo
| | - M Kitami
- Department of Laboratory Medicine, National Cancer Center Hospital, Tokyo
| | - Y Fujiwara
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo; Department of Thoracic Oncology, Aichi Cancer Center Hospital, Aichi
| | - S Kondo
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo; Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo
| | - K Yonemori
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo; Department of Medical Oncology, National Cancer Center Hospital, Tokyo
| | - E Noguchi
- Department of Medical Oncology, National Cancer Center Hospital, Tokyo
| | - C Morizane
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo
| | - Y Goto
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo
| | - A Maejima
- Department of Medical Oncology, National Cancer Center Hospital, Tokyo; Department of Urology, National Cancer Center Hospital, Tokyo
| | - S Iwasa
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo; Department of Gastrointestinal Medical Oncology, National Cancer Center Hospital, Tokyo
| | - T Hamaguchi
- Department of Medical Oncology, Saitama Medical University International Medical Center, Saitama
| | - A Kawai
- Department of Musculoskeletal Oncology and Rehabilitation, National Cancer Center Hospital, Tokyo
| | - K Namikawa
- Department of Dermatologic Oncology, National Cancer Center Hospital, Tokyo
| | - A Arakawa
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo
| | - M Sugiyama
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo
| | - M Ohno
- Department of Neurosurgery and Neuro-Oncology, National Cancer Center Hospital, Tokyo
| | - T Yoshida
- Department of Genetic Services and Medicine, National Cancer Center Hospital, Tokyo
| | - N Hiraoka
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo
| | - A Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo
| | - M Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo
| | - T Nishino
- Department of Laboratory Medicine, National Cancer Center Hospital, Tokyo
| | - E Furukawa
- Division of Bioinformatics, National Cancer Center Research Institute, Tokyo
| | - D Narushima
- Division of Bioinformatics, National Cancer Center Research Institute, Tokyo
| | - M Nagai
- Division of Bioinformatics, National Cancer Center Research Institute, Tokyo
| | - M Kato
- Division of Bioinformatics, National Cancer Center Research Institute, Tokyo
| | - H Ichikawa
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo; Division of Translational Genomics, National Cancer Center Exploratory Oncology Research & Clinical Trial Center, Tokyo, Japan
| | - Y Fujiwara
- Department of Medical Oncology, National Cancer Center Hospital, Tokyo
| | - T Kohno
- Division of Genome Biology, National Cancer Center Research Institute, Tokyo; Division of Translational Genomics, National Cancer Center Exploratory Oncology Research & Clinical Trial Center, Tokyo, Japan
| | - N Yamamoto
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo.
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Nishimura Y, Matsumoto S, Sasaki T, Kubo T. Impacts of workplace verbal aggression classified via text mining on workers' mental health. Occup Med (Lond) 2024; 74:186-192. [PMID: 38346110 PMCID: PMC10990467 DOI: 10.1093/occmed/kqae009] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND Exposure to workplace aggression adversely affects workers' health; however, little is known regarding the impact of specific types of verbal content. AIMS We aimed to examine the relationship between exposure to several types of aggressive words at work and the victim's depressive symptoms and sleep disturbance using text mining. METHODS We conducted a longitudinal survey with 800 workers in wholesale and retail companies; of which, 500 responded to the follow-up survey. The Centre for Epidemiologic Studies-Depression Scale and Pittsburgh Sleep Quality Index were filled out by the participants, and their responses were analysed by logistic regression to evaluate the risk of depression or sleep problems. We collected exact aggressive words encountered at work over the past year as a dependent variable and classified it into four types using text mining, such as words criticizing one's performance. RESULTS The follow-up rate was 63%. Exposure to words threatening one's life showed a significant relationship with the risk of depression (odds ratio [OR] = 13.94, 95% confidence interval [CI] = 1.76-110.56). The exposure to words criticizing one's job performance is significantly related to the risk of sleep disturbance (OR = 5.56, 95% CI = 2.08-14.88). CONCLUSIONS These findings suggest that different contents of verbal aggression can have different impacts on workers' health. This indicates that not only overtly threatening and abusive language but also words related to one's performance can be a risk factor for workers, depending on how they are delivered. To mitigate the adverse effects, promoting effective communication and cultivating psychological detachment from work may be beneficial.
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Affiliation(s)
- Y Nishimura
- Occupational Stress and Health Management Research Group, National Institute of Occupational Safety and Health, Kawasaki, Japan
| | - S Matsumoto
- Occupational Stress and Health Management Research Group, National Institute of Occupational Safety and Health, Kawasaki, Japan
| | - T Sasaki
- Occupational Stress and Health Management Research Group, National Institute of Occupational Safety and Health, Kawasaki, Japan
| | - T Kubo
- Occupational Stress and Health Management Research Group, National Institute of Occupational Safety and Health, Kawasaki, Japan
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Tarasov OB, Gade A, Fukushima K, Hausmann M, Kwan E, Portillo M, Smith M, Ahn DS, Bazin D, Chyzh R, Giraud S, Haak K, Kubo T, Morrissey DJ, Ostroumov PN, Richardson I, Sherrill BM, Stolz A, Watters S, Weisshaar D, Zhang T. Observation of New Isotopes in the Fragmentation of ^{198}Pt at FRIB. Phys Rev Lett 2024; 132:072501. [PMID: 38427880 DOI: 10.1103/physrevlett.132.072501] [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] [Received: 09/28/2023] [Accepted: 12/22/2023] [Indexed: 03/03/2024]
Abstract
Five previously unknown isotopes (^{182,183}Tm, ^{186,187}Yb, ^{190}Lu) were produced, separated, and identified for the first time at the Facility for Rare Isotope Beams (FRIB) using the Advanced Rare Isotope Separator (ARIS). The new isotopes were formed through the interaction of a ^{198}Pt beam with a carbon target at an energy of 186 MeV/u and with a primary beam power of 1.5 kW. Event-by-event particle identification of A, Z, and q for the reaction products was performed by combining measurements of the energy loss, time of flight, magnetic rigidity Bρ, and total kinetic energy. The ARIS separator has a novel two-stage design with high resolving power to strongly suppress contaminant beams. This successful new isotope search was performed less than one year after FRIB operations began and demonstrates the discovery potential of the facility which will ultimately provide 400 kW of primary beam power.
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Affiliation(s)
- O B Tarasov
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Gade
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - K Fukushima
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - M Hausmann
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - E Kwan
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - M Portillo
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - M Smith
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - D S Ahn
- Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon 34126, Republic of Korea
| | - D Bazin
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - R Chyzh
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - S Giraud
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - K Haak
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - T Kubo
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D J Morrissey
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - P N Ostroumov
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - I Richardson
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - B M Sherrill
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Stolz
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - S Watters
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Weisshaar
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - T Zhang
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
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Kubo T, Yamagata Y, Matsusaka H, Toyoda A, Sato Y, Kumamaru T. MiRiQ Database: A Platform for In Silico Rice Mutant Screening. Plant Cell Physiol 2024; 65:169-174. [PMID: 37930817 PMCID: PMC10799713 DOI: 10.1093/pcp/pcad134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/15/2023] [Accepted: 10/31/2023] [Indexed: 11/08/2023]
Abstract
Genetic studies using mutant resources have significantly contributed to elucidating plant gene function. Massive mutant libraries sequenced by next-generation sequencing technology facilitate mutant identification and functional analysis of genes of interest. Here, we report the creation and release of an open-access database (https://miriq.agr.kyushu-u.ac.jp/index.php), called Mutation-induced Rice in Kyushu University (MiRiQ), designed for in silico mutant screening based on a whole-genome-sequenced mutant library. This database allows any user to easily find mutants of interest without laborious efforts such as large-scale screening by PCR. The initial version of the MiRiQ database (version 1.0) harbors a total of 1.6 million single-nucleotide variants (SNVs) and InDels of 721 M1 plants that were mutagenized by N-methyl-N-nitrosourea treatment of the rice cultivar Nipponbare (Oryza sativa ssp. japonica). The SNVs were distributed among 87% of all 35,630 annotated protein-coding genes of the Nipponbare genome and were predicted to induce missense and nonsense mutations. The MiRiQ database provides built-in tools, such as a search tool by keywords and JBrowse for mutation searches. Users can request mutant seeds in the M2 or M3 generations from a request form linked to this database. We believe that the availability of a wide range of gene mutations in this database will benefit the plant science community and breeders worldwide by accelerating functional genomic research and crop improvement.
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Affiliation(s)
- Takahiko Kubo
- Faculty of Agriculture, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395 Japan
| | - Yoshiyuki Yamagata
- Faculty of Agriculture, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395 Japan
| | - Hiroaki Matsusaka
- Faculty of Agriculture, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395 Japan
| | - Atsushi Toyoda
- National Institute of Genetics, Yata 1111, Mishima, Shizuoka, 411-8540 Japan
| | - Yutaka Sato
- National Institute of Genetics, Yata 1111, Mishima, Shizuoka, 411-8540 Japan
| | - Toshihiro Kumamaru
- Faculty of Agriculture, Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395 Japan
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Yasaka K, Sato C, Hirakawa H, Fujita N, Kurokawa M, Watanabe Y, Kubo T, Abe O. Impact of deep learning on radiologists and radiology residents in detecting breast cancer on CT: a cross-vendor test study. Clin Radiol 2024; 79:e41-e47. [PMID: 37872026 DOI: 10.1016/j.crad.2023.09.022] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/13/2023] [Accepted: 09/29/2023] [Indexed: 10/25/2023]
Abstract
AIM To investigate the effect of deep learning on the diagnostic performance of radiologists and radiology residents in detecting breast cancers on computed tomography (CT). MATERIALS AND METHODS In this retrospective study, patients undergoing contrast-enhanced chest CT between January 2010 and December 2020 using equipment from two vendors were included. Patients with confirmed breast cancer were categorised as the training (n=201) and validation (n=26) group and the testing group (n=30) using processed CT images from either vendor. The trained deep-learning model was applied to test group patients with (30 females; mean age = 59.2 ± 15.8 years) and without (19 males, 21 females; mean age = 64 ± 15.9 years) breast cancer. Image-based diagnostic performance of the deep-learning model was evaluated with the area under the receiver operating characteristic curve (AUC). Two radiologists and three radiology residents were asked to detect malignant lesions by recording a four-point diagnostic confidence score before and after referring to the result from the deep-learning model, and their diagnostic performance was evaluated using jackknife alternative free-response receiver operating characteristic analysis by calculating the figure of merit (FOM). RESULTS The AUCs of the trained deep-learning model on the validation and test data were 0.976 and 0.967, respectively. After referencing with the result of the deep learning model, the FOMs of readers significantly improved (reader 1/2/3/4/5: from 0.933/0.962/0.883/0.944/0.867 to 0.958/0.968/0.917/0.947/0.900; p=0.038). CONCLUSION Deep learning can help radiologists and radiology residents detect breast cancer on CT.
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Affiliation(s)
- K Yasaka
- Department of Radiology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - C Sato
- Department of Radiology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - H Hirakawa
- Department of Radiology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - N Fujita
- Department of Radiology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - M Kurokawa
- Department of Radiology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Y Watanabe
- Department of Radiology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - T Kubo
- Department of Radiology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - O Abe
- Department of Radiology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
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Elakhdar A, El-Naggar AA, Kubo T, Kumamaru T. Genome-wide transcriptomic and functional analyses provide new insights into the response of spring barley to drought stress. Physiol Plant 2023; 175:e14089. [PMID: 38148212 DOI: 10.1111/ppl.14089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/22/2023] [Accepted: 10/27/2023] [Indexed: 12/28/2023]
Abstract
Drought is a major abiotic stress that impairs the physiology and development of plants, ultimately leading to crop yield losses. Drought tolerance is a complex quantitative trait influenced by multiple genes and metabolic pathways. However, molecular intricacies and subsequent morphological and physiological changes in response to drought stress remain elusive. Herein, we combined morpho-physiological and comparative RNA-sequencing analyses to identify core drought-induced marker genes and regulatory networks in the barley cultivar 'Giza134'. Based on field trials, drought-induced declines occurred in crop growth rate, relative water content, leaf area duration, flag leaf area, concentration of chlorophyll (Chl) a, b and a + b, net photosynthesis, and yield components. In contrast, the Chl a/b ratio, stoma resistance, and proline concentration increased significantly. RNA-sequence analysis identified a total of 2462 differentially expressed genes (DEGs), of which 1555 were up-regulated and 907 were down-regulated in response to water-deficit stress (WD). Comparative transcriptomics analysis highlighted three unique metabolic pathways (carbohydrate metabolism, iron ion binding, and oxidoreductase activity) as containing genes differentially expressed that could mitigate water stress. Our results identified several drought-induced marker genes belonging to diverse physiochemical functions like chlorophyll concentration, photosynthesis, light harvesting, gibberellin biosynthetic, iron homeostasis as well as Cis-regulatory elements. These candidate genes can be utilized to identify gene-associated markers to develop drought-resilient barley cultivars over a short period of time. Our results provide new insights into the understanding of water stress response mechanisms in barley.
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Affiliation(s)
- Ammar Elakhdar
- Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
- Field Crops Research Institute, Agricultural Research Center, Giza, Egypt
| | - Ahmed A El-Naggar
- Field Crops Research Institute, Agricultural Research Center, Giza, Egypt
| | - Takahiko Kubo
- Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Toshihiro Kumamaru
- Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
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Elakhdar A, Slaski JJ, Kubo T, Hamwieh A, Hernandez Ramirez G, Beattie AD, Capo-chichi LJ. Genome-wide association analysis provides insights into the genetic basis of photosynthetic responses to low-temperature stress in spring barley. Front Plant Sci 2023; 14:1159016. [PMID: 37346141 PMCID: PMC10279893 DOI: 10.3389/fpls.2023.1159016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 05/04/2023] [Indexed: 06/23/2023]
Abstract
Low-temperature stress (LTS) is among the major abiotic stresses affecting the geographical distribution and productivity of the most important crops. Understanding the genetic basis of photosynthetic variation under cold stress is necessary for developing more climate-resilient barley cultivars. To that end, we investigated the ability of chlorophyll fluorescence parameters (FVFM, and FVF0) to respond to changes in the maximum quantum yield of Photosystem II photochemistry as an indicator of photosynthetic energy. A panel of 96 barley spring cultivars from different breeding zones of Canada was evaluated for chlorophyll fluorescence-related traits under cold acclimation and freeze shock stresses at different times. Genome-wide association studies (GWAS) were performed using a mixed linear model (MLM). We identified three major and putative genomic regions harboring 52 significant quantitative trait nucleotides (QTNs) on chromosomes 1H, 3H, and 6H for low-temperature tolerance. Functional annotation indicated several QTNs were either within the known or close to genes that play important roles in the photosynthetic metabolites such as abscisic acid (ABA) signaling, hydrolase activity, protein kinase, and transduction of environmental signal transduction at the posttranslational modification levels. These outcomes revealed that barley plants modified their gene expression profile in response to decreasing temperatures resulting in physiological and biochemical modifications. Cold tolerance could influence a long-term adaption of barley in many parts of the world. Since the degree and frequency of LTS vary considerably among production sites. Hence, these results could shed light on potential approaches for improving barley productivity under low-temperature stress.
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Affiliation(s)
- Ammar Elakhdar
- Field Crops Research Institute, Agricultural Research Center, Giza, Egypt
- Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Jan J. Slaski
- Bio Industrial Services Division, InnoTech Alberta Inc., Vegreville, AB, Canada
| | - Takahiko Kubo
- Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Aladdin Hamwieh
- International Center for Agriculture Research in the Dry Areas (ICARDA), Giza, Egypt
| | - Guillermo Hernandez Ramirez
- Department of Renewable Resources, Faculty of Agriculture, Life and Environmental Sciences, University of Alberta, Edmonton, AB, Canada
| | - Aaron D. Beattie
- Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, SK, Canada
| | - Ludovic J.A. Capo-chichi
- Department of Renewable Resources, Faculty of Agriculture, Life and Environmental Sciences, University of Alberta, Edmonton, AB, Canada
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Sekita T, Asano N, Kubo T, Mitani S, Hattori N, Yoshida A, Kobayashi E, Komiyama M, Toshikazu U, Nakayama R, Kawai A, Nakamura M, Ichikawa H. 45O Clonal evolution of dedifferentiated liposarcoma. ESMO Open 2023. [DOI: 10.1016/j.esmoop.2023.101082] [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: 04/05/2023] Open
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Capo-chichi LJA, Elakhdar A, Kubo T, Nyachiro J, Juskiw P, Capettini F, Slaski JJ, Ramirez GH, Beattie AD. Genetic diversity and population structure assessment of Western Canadian barley cooperative trials. Front Plant Sci 2023; 13:1006719. [PMID: 36699829 PMCID: PMC9868428 DOI: 10.3389/fpls.2022.1006719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
Studying the population structure and genetic diversity of historical datasets is a proposed use for association analysis. This is particularly important when the dataset contains traits that are time-consuming or costly to measure. A set of 96 elite barley genotypes, developed from eight breeding programs of the Western Canadian Cooperative Trials were used in the current study. Genetic diversity, allelic variation, and linkage disequilibrium (LD) were investigated using 5063 high-quality SNP markers via the Illumina 9K Barley Infinium iSelect SNP assay. The distribution of SNPs markers across the barley genome ranged from 449 markers on chromosome 1H to 1111 markers on chromosome 5H. The average polymorphism information content (PIC) per locus was 0.275 and ranged from 0.094 to 0.375. Bayesian clustering in STRUCTURE and principal coordinate analysis revealed that the populations are differentiated primarily due to the different breeding program origins and ear-row type into five subpopulations. Analysis of molecular variance based on PhiPT values suggested that high values of genetic diversity were observed within populations and accounted for 90% of the total variance. Subpopulation 5 exhibited the most diversity with the highest values of the diversity indices, which represent the breeding program gene pool of AFC, AAFRD, AU, and BARI. With increasing genetic distance, the LD values, expressed as r2, declined to below the critical r2 = 0.18 after 3.91 cM, and the same pattern was observed on each chromosome. Our results identified an important pattern of genetic diversity among the Canadian barley panel that was proposed to be representative of target breeding programs and may have important implications for association mapping in the future. This highlight, that efforts to identify novel variability underlying this diversity may present practical breeding opportunities to develop new barley genotypes.
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Affiliation(s)
- Ludovic J. A. Capo-chichi
- Department of Renewable Resources, Faculty of Agriculture, Life and Environmental Sciences, University of Alberta, Edmonton, AB, Canada
| | - Ammar Elakhdar
- Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
- Field Crops Research Institute, Agricultural Research Center, Giza, Egypt
| | - Takahiko Kubo
- Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Joseph Nyachiro
- Field Crop Development Centre, Alberta Agriculture and Forestry, Lacombe, AB, Canada
| | - Patricia Juskiw
- Field Crop Development Centre, Alberta Agriculture and Forestry, Lacombe, AB, Canada
| | - Flavio Capettini
- Field Crop Development Centre, Alberta Agriculture and Forestry, Lacombe, AB, Canada
| | - Jan J. Slaski
- Ecosystems and Plant Sciences, InnoTech Alberta Inc., Vegreville, AB, Canada
| | - Guillermo Hernandez Ramirez
- Department of Renewable Resources, Faculty of Agriculture, Life and Environmental Sciences, University of Alberta, Edmonton, AB, Canada
| | - Aaron D. Beattie
- Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, SK, Canada
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Oda T, Mitsuda N, Miyakoshi K, Makino S, Ishii K, Kurasawa K, Kubo T, Shimoya K, Ikeda T, Kanayama N. A nationwide study of obstetric management and outcomes in premature rupture of membrane at term: Report from the Perinatology Committee, Japan Society of Obstetrics and Gynecology, 2017-2018. J Obstet Gynaecol Res 2023; 49:68-74. [PMID: 36195467 DOI: 10.1111/jog.15450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 08/22/2022] [Revised: 09/14/2022] [Accepted: 09/19/2022] [Indexed: 01/19/2023]
Abstract
AIM This nationwide study aimed to investigate the practical management of term premature rupture of membrane (PROM) and its relationship with maternal and neonatal outcomes. METHODS We conducted a questionnaire survey of 415 facilities participating in the Japan Perinatal Registry Network of the Japan Society of Obstetrics and Gynecology in 2016. The patients were women expecting vaginal birth after PROM at term without clinical chorioamnionitis. We classified the facilities into three groups based on duration of the expectant management after PROM (within 24, 24, and 48 h). Furthermore, we analyzed the association between perinatal outcomes and management protocol using the Japan Perinatal Registry Network Database 2016. RESULTS Of 415 facilities, 346 (83.4%) completed and returned the survey. Among 231 facilities with management protocols, an interval of 3 days from PROM to delivery was acceptable in 167 facilities (72.3%). One hundred forty-nine facilities (64.5%) responded that they did not perform mechanical cervical dilation, and 90 (39.0%) used oxytocin as a uterotonic irrespective of cervical maturation. The number of hospitals that had a policy to administer antibiotics to Group B streptococcus-positive patients was 211 (91.3%). Neonatal outcomes at birth and the frequency of cesarean section and postpartum fever did not differ among the three groups. CONCLUSIONS Most facilities in the Japan Perinatal Registry Network managed women at term to delivery within 3 days after PROM with attention to bacterial infection. Expectant management up to 48 h after PROM did not increase the risk of postpartum fever, compared to labor induction immediately after PROM.
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Affiliation(s)
- Tomoaki Oda
- Perinatology Committee, Japan Society of Obstetrics and Gynecology, Tokyo, Japan.,Department of Obstetrics & Gynecology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Nobuaki Mitsuda
- Perinatology Committee, Japan Society of Obstetrics and Gynecology, Tokyo, Japan.,Department of Maternal Fetal Medicine, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Kei Miyakoshi
- Perinatology Committee, Japan Society of Obstetrics and Gynecology, Tokyo, Japan.,Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan.,Department of Obstetrics and Gynecology, International Catholic Hospital, Tokyo, Japan
| | - Shintaro Makino
- Perinatology Committee, Japan Society of Obstetrics and Gynecology, Tokyo, Japan.,Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Tokyo, Japan.,Department of Obstetrics and Gynecology, Juntendo University Urayasu Hospital, Urayasu, Japan
| | - Keisuke Ishii
- Perinatology Committee, Japan Society of Obstetrics and Gynecology, Tokyo, Japan.,Department of Maternal Fetal Medicine, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Kentaro Kurasawa
- Perinatology Committee, Japan Society of Obstetrics and Gynecology, Tokyo, Japan.,Department of Obstetrics and Gynecology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Takahiko Kubo
- Perinatology Committee, Japan Society of Obstetrics and Gynecology, Tokyo, Japan.,Shirota Obstetrical and Gynecological Hospital, Zama, Japan
| | - Koichiro Shimoya
- Perinatology Committee, Japan Society of Obstetrics and Gynecology, Tokyo, Japan.,Department of Obstetrics and Gynecology, Kawasaki Medical School, Kurashiki, Japan
| | - Tomoaki Ikeda
- Perinatology Committee, Japan Society of Obstetrics and Gynecology, Tokyo, Japan.,Department of Obstetrics and Gynecology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Naohiro Kanayama
- Perinatology Committee, Japan Society of Obstetrics and Gynecology, Tokyo, Japan.,Department of Obstetrics & Gynecology, Hamamatsu University School of Medicine, Hamamatsu, Japan.,Shizuoka College of Medicalcare Science, Hamamatsu, Japan
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11
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Ahn DS, Amano J, Baba H, Fukuda N, Geissel H, Inabe N, Ishikawa S, Iwasa N, Komatsubara T, Kubo T, Kusaka K, Morrissey DJ, Nakamura T, Ohtake M, Otsu H, Sakakibara T, Sato H, Sherrill BM, Shimizu Y, Sumikama T, Suzuki H, Takeda H, Tarasov OB, Ueno H, Yanagisawa Y, Yoshida K. Discovery of ^{39}Na. Phys Rev Lett 2022; 129:212502. [PMID: 36461972 DOI: 10.1103/physrevlett.129.212502] [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] [Received: 07/14/2022] [Revised: 09/08/2022] [Accepted: 09/14/2022] [Indexed: 06/17/2023]
Abstract
The new isotope ^{39}Na, the most neutron-rich sodium nucleus observed so far, was discovered at the RIKEN Nishina Center Radioactive Isotope Beam Factory using the projectile fragmentation of an intense ^{48}Ca beam at 345 MeV/nucleon on a beryllium target. Projectile fragments were separated and identified in flight with the large-acceptance two-stage separator BigRIPS. Nine ^{39}Na events have been unambiguously observed in this work and clearly establish the particle stability of ^{39}Na. Furthermore, the lack of observation of ^{35,36}Ne isotopes in this experiment significantly improves the overall confidence that ^{34}Ne is the neutron dripline nucleus of neon. These results provide new key information to understand nuclear binding and nuclear structure under extremely neutron-rich conditions. The newly established stability of ^{39}Na has a significant impact on nuclear models and theories predicting the neutron dripline and also provides a key to understanding the nuclear shell property of ^{39}Na at the neutron number N=28, which is normally a magic number.
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Affiliation(s)
- D S Ahn
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - J Amano
- Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan
| | - H Baba
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - N Fukuda
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Geissel
- GSI, Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt, Germany
| | - N Inabe
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Ishikawa
- Department of Physics, Tohoku University, 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - N Iwasa
- Department of Physics, Tohoku University, 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - T Komatsubara
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Kubo
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Kusaka
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D J Morrissey
- National Superconducting Cyclotron Laboratory, Michigan State University, 640 South Shaw Lane, East Lansing, Michigan 48824, USA
| | - T Nakamura
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - M Ohtake
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Otsu
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Sakakibara
- Department of Physics, Tohoku University, 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - H Sato
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - B M Sherrill
- National Superconducting Cyclotron Laboratory, Michigan State University, 640 South Shaw Lane, East Lansing, Michigan 48824, USA
| | - Y Shimizu
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Sumikama
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Suzuki
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Takeda
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - O B Tarasov
- National Superconducting Cyclotron Laboratory, Michigan State University, 640 South Shaw Lane, East Lansing, Michigan 48824, USA
| | - H Ueno
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Yanagisawa
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Yoshida
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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12
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Kubo T, Yamagata Y, Matsusaka H, Toyoda A, Sato Y, Kumamaru T. Whole-Genome Sequencing of Rice Mutant Library Members Induced by N-Methyl-N-Nitrosourea Mutagenesis of Fertilized Egg Cells. Rice (N Y) 2022; 15:38. [PMID: 35841399 PMCID: PMC9288566 DOI: 10.1186/s12284-022-00585-1] [Citation(s) in RCA: 1] [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] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
Although targeted genome editing technology has become a powerful reverse genetic approach for accelerating functional genomics, conventional mutant libraries induced by chemical mutagens remain valuable for plant studies. Plants containing chemically induced mutations are simple yet effective genetic tools that can be grown without regard for biosafety issues. Whole-genome sequencing of mutant individuals reduces the effort required for mutant screening, thereby increasing their utility. In this study, we sequenced members of a mutant library of Oryza sativa cv. Nipponbare derived from treating single fertilized egg cells with N-methyl-N-nitrosourea (MNU). By whole-genome sequencing 266 M1 plants in this mutant library, we identified a total of 0.66 million induced point mutations. This result represented one mutation in every 146-kb of genome sequence in the 373 Mb assembled rice genome. These point mutations were uniformly distributed throughout the rice genome, and over 70,000 point mutations were located within coding sequences. Although this mutant library was a small population, nonsynonymous mutations were found in nearly 61% of all annotated rice genes, and 8.6% (3248 genes) had point mutations with large effects on gene function, such as gaining a stop codon or losing a start codon. WGS showed MNU-mutagenesis using rice fertilized egg cells induces mutations efficiently and is suitable for constructing mutant libraries for an in silico mutant screening system. Expanding this mutant library and its database will provide a useful in silico screening tool that facilitates functional genomics studies with a special emphasis on rice.
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Affiliation(s)
- Takahiko Kubo
- Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
| | - Yoshiyuki Yamagata
- Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Hiroaki Matsusaka
- Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Atsushi Toyoda
- National Institute of Genetics, Yata 1111, Mishima, Shizuoka, 411-8540, Japan
| | - Yutaka Sato
- National Institute of Genetics, Yata 1111, Mishima, Shizuoka, 411-8540, Japan
| | - Toshihiro Kumamaru
- Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
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13
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Yamamoto T, Arita M, Kawamura H, Suzuki T, Margetts D, Kubo T, Kawamata S. Mesenchymal Stem/Stromal Cells: DETERMINATION OF CRITICAL QUALITY ATTRIBUTES OF MESENCHYMAL STEM CELL BY DEFINING CRITICAL PROCESS PARAMETERS AND EFFICACY OF THE PRODUCT. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00228-6] [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: 11/29/2022]
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14
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Kubo T, Yoshimura A, Kurata N. Loss of OsEAF6, a Subunit of the Histone Acetyltransferase Complex, Causes Hybrid Breakdown in Intersubspecific Rice Crosses. Front Plant Sci 2022; 13:866404. [PMID: 35350298 PMCID: PMC8957887 DOI: 10.3389/fpls.2022.866404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
Gene duplication plays an important role in genetic diversification, adaptive evolution, and speciation. Understanding the mechanisms and effects of postzygotic isolation genes is important for further studies of speciation and crop breeding. The duplicate recessive genes hwe1 and hwe2 cause hybrid breakdown, characterized by poor vegetative growth and reproductive dysgenesis in intersubspecific crosses between Oryza sativa ssp. indica and japonica. Using a map-based cloning strategy, we found that HWE1 and HWE2 encode the Esa1-associated factor 6 (EAF6) protein, a component of histone acetyltransferase complexes. The indica hwe1 and japonica hwe2 alleles lacked functional EAF6, demonstrating that the double recessive homozygote causes hybrid breakdown. Morphological and physiological observations showed that weak plants with double recessive homozygotes had serious morphological defects with a wide range of effects on development and organs, leading to leaves with reduced chlorophyll content, flower and pistil malformation, and anomalies of gametogenesis. These findings suggest that EAF6 plays a pivotal role in the transcriptional regulation of essential genes during the vegetative and reproductive development of rice.
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Affiliation(s)
- Takahiko Kubo
- Plant Genetics Laboratory, National Institute of Genetics, Mishima, Japan
| | - Atsushi Yoshimura
- Plant Breeding Laboratory, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Nori Kurata
- Plant Genetics Laboratory, National Institute of Genetics, Mishima, Japan
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15
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Furukawa E, Chen Z, Kubo T, Chelenga M, Wu Y, Chiba H, Yanagawa Y, Katagiri S, Hui S, Nagano M. 100 Effects of days in milk and body condition score loss after parturition on oocyte triacylglycerol content in Holstein cows. Reprod Fertil Dev 2021; 34:287. [PMID: 35231236 DOI: 10.1071/rdv34n2ab100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
- E Furukawa
- Laboratory of Theriogenology, School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Z Chen
- Department of Health Sciences and Technology, Faculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - T Kubo
- Dairy Cattle Group, Dairy Research Center, Hokkaido Research Organization, Nakashibetsu, Hokkaido, Japan
| | - M Chelenga
- Laboratory of Theriogenology, School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Y Wu
- Department of Health Sciences and Technology, Faculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - H Chiba
- Department of Nutrition, Sapporo University of Health Sciences, Sapporo, Hokkaido, Japan
| | - Y Yanagawa
- Laboratory of Theriogenology, School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - S Katagiri
- Laboratory of Theriogenology, School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - S Hui
- Department of Health Sciences and Technology, Faculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - M Nagano
- Laboratory of Animal Reproduction, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
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16
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Fukushima K, Akagi K, Kondoh A, Kubo T, Ito Y, Oda Y, Nagihara Y, Sakamoto N, Mukae H. Evaluation of QFT-Plus performance using blood samples stored at room temperature. Int J Tuberc Lung Dis 2021; 25:948-949. [PMID: 34686239 DOI: 10.5588/ijtld.21.0319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- K Fukushima
- Department of Respiratory Medicine, Japanese Red Cross Nagasaki Genbaku Isahaya Hospital, Nagasaki, Japan
| | - K Akagi
- Department of Respiratory Medicine, Japanese Red Cross Nagasaki Genbaku Isahaya Hospital, Nagasaki, Japan
| | - A Kondoh
- Department of Respiratory Medicine, Japanese Red Cross Nagasaki Genbaku Isahaya Hospital, Nagasaki, Japan
| | - T Kubo
- Department of Laboratory Medicine, Japanese Red Cross Nagasaki Genbaku Isahaya Hospital, Nagasaki, Japan
| | - Y Ito
- Department of Laboratory Medicine, Japanese Red Cross Nagasaki Genbaku Isahaya Hospital, Nagasaki, Japan
| | - Y Oda
- Department of Laboratory Medicine, Japanese Red Cross Nagasaki Genbaku Isahaya Hospital, Nagasaki, Japan
| | - Y Nagihara
- Department of Laboratory Medicine, Japanese Red Cross Nagasaki Genbaku Isahaya Hospital, Nagasaki, Japan
| | - N Sakamoto
- Department of Respiratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - H Mukae
- Department of Respiratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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17
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Wada T, Hozumi T, Takemoto K, Shimamoto Y, Fujita S, Kashiwagi M, Shimamura K, Shiono Y, Kuroi A, Honda K, Tanimoto T, Kubo T, Tanaka A, Nishimura Y, Akasaka T. Impact of transcatheter aortic valve implantation on coronary flow reserve by transthoracic Doppler echocardiography 1-year after the intervention in severe aortic stenosis patients. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1636] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Coronary flow reserve (CFR) which is one of indexes reflecting coronary microcirculation in patients without significant epicardial coronary lesions can be impaired in patients with severe aortic stenosis (AS). It has been shown that CFR is an independent predictor for future cardiovascular events in AS patients. Transcatheter aortic valve implantation (TAVI) has rapidly become widespread and is becoming the standard treatment for severe AS. This procedure may have a good effect on CFR due to reduction of severe afterload in patients with severe AS. Although the recent reports evaluated change in CFR immediately and 6 months after TAVI, it has not been evaluated whether impaired CFR improves 1-year after TAVI in AS patients with preserved left ventricular ejection fraction (LVEF).
Purpose
The purpose of the present study was to investigate whether impaired CFR improves 1-year after TAVI in severe AS patients with preserved LVEF.
Methods
The study population consists of consecutive 105 patients with severe AS undergoing TAVI. Exclusion criteria were atrial fibrillation, old myocardial infarction, history of coronary artery bypass grafting, significant lesions in the left anterior descending artery (LAD), moderate or severe mitral valve disease, history of valve replacement, LVEF <50% and preoperative CFR >2.2. CFR was obtained from coronary flow velocity by transthoracic echocardiography at rest and maximal hyperemia in LAD before, immediately and 1-year after TAVI. We compared CFR between before and after TAVI in the study patients who did not meet the exclusion criteria.
Results
After exclusion of 76 patients who met the exclusion criteria, the final study patients consist of 29 patients (8 male, 84.9±5.2 years). There was no significant difference in LVEF (61.3±3.4% vs 61.6±4.4%, P=0.667) and LV end-diastolic volume (LVEDVI; 58.2±9.2 mL/m2 vs 55.8±9.0 mL/m2, P=0.089) between before and immediately after TAVI. LVEF (61.0±2.8%, P=0.721) and LVEDVI (58.0±9.1 mL/m2, P=0.949) 1-year after TAVI were similar to those before TAVI. There was no significant difference in coronary flow velocity at rest between before and immediately after TAVI (27.4±8.9 vs 24.4±7.0 cm/s, P=0.051) and between before and 1-year after TAVI (25.9±8.3 cm/s, P=0.396). Coronary flow velocity at maximal hyperemia 1-year after TAVI significantly increased compared with that before TAVI (from 48.8±13.9 to 67.9±21.0 cm/s, P<0.001) while there was no significant difference between before and immediately after TAVI (52.0±12.0 cm/s, P=0.186). Impaired CFR before TAVI (1.82±0.28) increased immediately (2.03±0.39, P=0.009) and 1-year after TAVI (2.69±0.57, P<0.001).
Conclusions
The present results suggest that impaired CFR in patients with preserved LVEF improves 1-year after TAVI. TAVI may have a good effect on CFR in severe AS patients with preserved LVEF.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- T Wada
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - K Takemoto
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Shimamoto
- Wakayama-Minami Radiology Clinic, Wakayama, Japan
| | - S Fujita
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - K Honda
- Wakayama Medical University, Department of Thoracic and Cardiovascular Surgery, Wakayama, Japan
| | - T Tanimoto
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Nishimura
- Wakayama Medical University, Department of Thoracic and Cardiovascular Surgery, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
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18
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Elakhdar A, Fukuda M, Kubo T. Agrobacterium-mediated Transformation of Japonica Rice Using Mature Embryos and Regenerated Transgenic Plants. Bio Protoc 2021; 11:e4143. [PMID: 34692903 DOI: 10.21769/bioprotoc.4143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 02/10/2021] [Revised: 05/11/2021] [Accepted: 05/16/2021] [Indexed: 11/02/2022] Open
Abstract
Identification of novel genes and their functions in rice is a critical step to improve economic traits. Agrobacterium tumefaciens-mediated transformation is a proven method in many laboratories and widely adopted for genetic engineering in rice. However, the efficiency of gene transfer by Agrobacterium in rice is low, particularly among japonica and indica varieties. In this protocol, we elucidate a rapid and highly efficient protocol to transform and regenerate transgenic rice plants through important key features of Agrobacterium transformation and standard regeneration media, especially enhancing culture conditions, timing, and growth hormones. With this protocol, transformed plantlets from the embryogenetic callus of the japonica cultivar 'Taichung 65' may be obtained within 90 days. This protocol may be used with other japonica rice varieties.
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Affiliation(s)
- Ammar Elakhdar
- Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Motooka 744, Fukuoka 819-0395, Japan.,Field Crops Research Institute, Agricultural Research Center, Giza 12619, Egypt
| | - Masako Fukuda
- Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Motooka 744, Fukuoka 819-0395, Japan
| | - Takahiko Kubo
- Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Motooka 744, Fukuoka 819-0395, Japan
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19
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Shiono Y, Matsuo H, Fujita H, Tanaka N, Ogasawara Y, Kawamura I, Katayama Y, Matsuo A, Kawase Y, Kakuta T, Takashima H, Yokoi H, Ohira H, Suwa S, Oguri M, Yamamoto F, Kubo T, Akasaka T, Shiono Y, Katayama Y, Hironori K, Kubo T, Akasaka T, Tanaka N, Yamashita J, Fujita H, Matsuo A, Matsuo H, Kawase Y, Kawamura I, Kakuta T, Hoshino M, Sugano T, Takashima H, Amano T, Yokoi H, Yamamoto Y, Nozaki Y, Machida M, Kobori M, Kikuchi T, Ohira H, Yoshino H, Ishiguro H, Wakabayashi Y, Kondo T, Terai H, Suwa T, Kimura T, Kawajiri T, Hirohata A, Uemura S, Neishi Y, Sakamoto T, Yamada M, Okeie K, Hishikari K, Oguri M, Uetani T, Saegusa T, Yamamoto F, Yamada M. Diagnostic Accuracy of Diastolic Fractional Flow Reserve for Functional Evaluation of Coronary Stenosis. JACC: Asia 2021; 1:230-241. [PMID: 36338166 PMCID: PMC9627917 DOI: 10.1016/j.jacasi.2021.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/28/2021] [Accepted: 07/08/2021] [Indexed: 01/10/2023]
Abstract
Background In the resting conditions, narrowing the window of coronary pressure measurements from the whole cardiac cycle to diastole improves diagnostic performance of coronary pressure–derived physiological index. However, whether this also applies to the hyperemic conditions has not yet been thoroughly evaluated. Objectives The purpose of this study was to assess whether diastolic fractional flow reserve (diastolic FFR) has better diagnostic performance in identifying ischemia-causing coronary lesions than conventional FFR in a prospective, multicenter, and independent core laboratory–based environment. Methods In this prospective multicenter registry at 29 Japanese centers, we compared the diagnostic performance of FFR, diastolic FFR, resting distal to aortic coronary pressure (Pd/Pa), and diastolic pressure ratio (dPR) using myocardial perfusion scintigraphy (MPS) as the reference standard in 378 patients with single-vessel coronary disease. Results Inducible myocardial ischemia was found on MPS in the relevant myocardial territory of the target vessel in 85 patients (22%). In the receiver-operating curve analyses, diastolic FFR had comparable area under the curve (AUC) compared with FFR (AUCdiastolic FFR: 0.66; 95% confidence interval [CI]: 0.58-0.73, vs AUCFFR: 0.66; 95% CI: 0.58-0.74, P = 0.624). FFR and diastolic FFR showed significantly larger AUCs than resting Pd/Pa (0.62; 95% CI: 0.54-0.70; P = 0.033 and P = 0.046) but did not show significantly larger AUCs than dPR (0.62; 95% CI: 0.55-0.70; P = 0.102 and P = 0.113). Conclusions Diastolic FFR showed a similar diagnostic performance to FFR as compared with MPS. This result reaffirms the use of FFR as the most accurate invasive physiological lesion assessment. (Diagnostic accuracy of diastolic fractional flow reserve (d-FFR) for functional evaluation of coronary stenosis; UMIN000015906)
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20
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Shenton M, Kobayashi M, Terashima S, Ohyanagi H, Copetti D, Hernández-Hernández T, Zhang J, Ohmido N, Fujita M, Toyoda A, Ikawa H, Fujiyama A, Furuumi H, Miyabayashi T, Kubo T, Kudrna D, Wing R, Yano K, Nonomura KI, Sato Y, Kurata N. Evolution and Diversity of the Wild Rice Oryza officinalis Complex, across Continents, Genome Types, and Ploidy Levels. Genome Biol Evol 2021; 12:413-428. [PMID: 32125373 PMCID: PMC7531200 DOI: 10.1093/gbe/evaa037] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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] [Accepted: 02/25/2020] [Indexed: 12/15/2022] Open
Abstract
The Oryza officinalis complex is the largest species group in
Oryza, with more than nine species from four continents, and is a
tertiary gene pool that can be exploited in breeding programs for the improvement of
cultivated rice. Most diploid and tetraploid members of this group have a C genome. Using
a new reference C genome for the diploid species O. officinalis, and
draft genomes for two other C genome diploid species Oryza eichingeri and
Oryza rhizomatis, we examine the influence of transposable elements on
genome structure and provide a detailed phylogeny and evolutionary history of the
Oryza C genomes. The O. officinalis genome is 1.6
times larger than the A genome of cultivated Oryza sativa, mostly due to
proliferation of Gypsy type long-terminal repeat transposable elements,
but overall syntenic relationships are maintained with other Oryza
genomes (A, B, and F). Draft genome assemblies of the two other C genome diploid species,
Oryza eichingeri and Oryza rhizomatis, and short-read
resequencing of a series of other C genome species and accessions reveal that after the
divergence of the C genome progenitor, there was still a substantial degree of variation
within the C genome species through proliferation and loss of both DNA and long-terminal
repeat transposable elements. We provide a detailed phylogeny and evolutionary history of
the Oryza C genomes and a genomic resource for the exploitation of the
Oryza tertiary gene pool.
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Affiliation(s)
| | | | | | - Hajime Ohyanagi
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Dario Copetti
- Arizona Genomics Institute, BIO5 Institute and School of Plant Sciences, University of Arizona.,T.T. Chang Genetic Resources Center, International Rice Research Institute, Los Baños, Philippines
| | | | - Jianwei Zhang
- Arizona Genomics Institute, BIO5 Institute and School of Plant Sciences, University of Arizona
| | - Nobuko Ohmido
- Division of the Living Environment, Kobe University, Japan
| | | | | | | | | | | | | | - Takahiko Kubo
- National Institute of Genetics, Mishima, Japan.,Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - David Kudrna
- Arizona Genomics Institute, BIO5 Institute and School of Plant Sciences, University of Arizona
| | - Rod Wing
- Arizona Genomics Institute, BIO5 Institute and School of Plant Sciences, University of Arizona.,T.T. Chang Genetic Resources Center, International Rice Research Institute, Los Baños, Philippines.,Biological and Environment Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Kentaro Yano
- School of Agriculture, Meiji University, Tokyo, Japan
| | | | - Yutaka Sato
- National Institute of Genetics, Mishima, Japan
| | - Nori Kurata
- National Institute of Genetics, Mishima, Japan
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21
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Hotta K, Saeki S, Yamaguchi M, Harada D, Bessho A, Tanaka K, Inoue K, Gemba K, Shiojiri M, Kato Y, Ninomiya T, Kubo T, Kishimoto J, Shioyama Y, Katsui K, Sasaki J, Kiura K, Sugio K. Gefitinib induction followed by chemoradiotherapy in EGFR-mutant, locally advanced non-small-cell lung cancer: LOGIK0902/OLCSG0905 phase II study. ESMO Open 2021; 6:100191. [PMID: 34153652 PMCID: PMC8233144 DOI: 10.1016/j.esmoop.2021.100191] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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] [Received: 03/18/2021] [Revised: 05/13/2021] [Accepted: 05/26/2021] [Indexed: 12/02/2022] Open
Abstract
Background The role of epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitor (TKI) induction coupled with standard concurrent chemoradiotherapy (CRT) is unclear in unresectable, stage III, EGFR-mutant non-small-cell lung cancer (NSCLC). Therefore, a phase II trial was conducted to evaluate the efficacy and safety of gefitinib induction followed by CRT in this disease setting. Patients and methods Patients with unresectable, EGFR-mutant, stage III NSCLC were administered gefitinib monotherapy (250 mg/day) for 8 weeks. Subsequently, patients without disease progression during induction therapy were administered cisplatin and docetaxel (40 mg/m2 each) on days 1, 8, 29, and 36 with concurrent radiotherapy at a total dose of 60 Gy. The primary endpoint was the 2-year overall survival (OS) rate, which was hypothesized to reach 85%, with a threshold of the lower limit of 60%. Results Twenty patients (median age: 66 years; male/female: 9/11; histology: 20 adenocarcinoma; stage IIIA/IIIB: 9/11; and exon 19/21: 10/10) were enrolled. The 2-year OS rate was 90% (90% confidence interval: 71.4% to 96.8%), indicating that this trial met the primary objective. The overall response rate and 1- and 2-year progression-free survival rates were 85.0%, 58.1%, and 36.9%, respectively. Grade ≥3 adverse events (>10%) included hepatic toxicity during the induction phase and neutropenia and febrile neutropenia in the CRT phase. Radiation pneumonitis grade ≥3 or treatment-related death did not occur. Conclusions This is the first prospective study to demonstrate the favorable efficacy and safety of EGFR-TKI induction followed by standard CRT in EGFR-mutant, stage III NSCLC. Further confirmatory studies are needed. This is the first prospective study evaluating gefitinib induction followed by CRT in EGFR-mutated, locally advanced NSCLC. The 2-year OS rate was 90% (90% confidence interval: 71.4% to 96.8%), indicating that this trial met the primary objective. The objective response rate throughout the treatment protocol was 85.0% (17 of 20). The safety findings were consistent with the known safety profiles of all agents administered. Our results might raise a critical point that needs to be evaluated in further studies to improve the cure rate.
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Affiliation(s)
- K Hotta
- Center for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan; Department of Respiratory Medicine, Okayama University Hospital, Okayama, Japan.
| | - S Saeki
- Department of Respiratory Medicine, Kumamoto University Hospital, Kumamoto, Japan
| | - M Yamaguchi
- Department of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Kyushu, Japan
| | - D Harada
- Department of Thoracic Oncology, National Hospital Organization Shikoku Cancer Center, Shikoku, Japan
| | - A Bessho
- Department of Respiratory Medicine, Japanese Red Cross Okayama Hospital, Okayama, Japan
| | - K Tanaka
- Department of Respiratory Medicine, Kyushu University Hospital, Kyushu, Japan
| | - K Inoue
- Department of Respiratory Medicine, Kitakyushu Municipal Medical Center, Kitakyushu, Japan
| | - K Gemba
- Department of Respiratory Medicine, Chugoku Central Hospital, Chugoku, Japan
| | - M Shiojiri
- Department of Respiratory Medicine, Japanese Red Cross Okayama Hospital, Okayama, Japan; Department of Respiratory Medicine, Ehime Prefectural Central Hospital, Ehime, Japan
| | - Y Kato
- Center for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan; Department of Respiratory Medicine, Okayama University Hospital, Okayama, Japan
| | - T Ninomiya
- Department of Respiratory Medicine, Okayama University Hospital, Okayama, Japan; Department of Thoracic Oncology, National Hospital Organization Shikoku Cancer Center, Shikoku, Japan
| | - T Kubo
- Department of Respiratory Medicine, Okayama University Hospital, Okayama, Japan
| | - J Kishimoto
- Center for Clinical and Translational Research, Kyushu University Hospital, Kyushu, Japan
| | - Y Shioyama
- Clinical Radiology, Radiology Informatics and Network, Graduate School of Medical Sciences, Kyushu University, Kyushu, Japan
| | - K Katsui
- Department of Proton Beam Therapy, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - J Sasaki
- Research and Development Center for New Medical Frontiers, Kitasato University School of Medicine, Kitasato, Japan
| | - K Kiura
- Department of Respiratory Medicine, Okayama University Hospital, Okayama, Japan
| | - K Sugio
- Department of Thoracic and Breast Surgery, Oita University, Oita, Japan
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22
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Kijima T, Kubo T, Nishihara D, Nukui A, Betsunoh H, Yashi M, Torigoe T, Kamai T. The cancer immunohistogram, a functional status of tumor-infiltrating cells evaluated by immunohistochemistry, predicts the efficacy of immune checkpoint inhibitors in urological cancer patients. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01268-9] [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: 11/26/2022]
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23
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Sato Y, Tsuda K, Yamagata Y, Matsusaka H, Kajiya-Kanegae H, Yoshida Y, Agata A, Ta KN, Shimizu-Sato S, Suzuki T, Nosaka-Takahashi M, Kubo T, Kawamoto S, Nonomura KI, Yasui H, Kumamaru T. Collection, preservation and distribution of Oryza genetic resources by the National Bioresource Project RICE (NBRP-RICE). Breed Sci 2021; 71:291-298. [PMID: 34776736 PMCID: PMC8573556 DOI: 10.1270/jsbbs.21005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/15/2021] [Indexed: 05/26/2023]
Abstract
Biological resources are the basic infrastructure of bioscience research. Rice (Oryza sativa L.) is a good experimental model for research in cereal crops and monocots and includes important genetic materials used in breeding. The availability of genetic materials, including mutants, is important for rice research. In addition, Oryza species are attractive to researchers for both finding useful genes for breeding and for understanding the mechanism of genome evolution that enables wild plants to adapt to their own habitats. NBRP-RICE contributes to rice research by promoting the usage of genetic materials, especially wild Oryza accessions and mutant lines. Our activity includes collection, preservation and distribution of those materials and the provision of basic information on them, such as morphological and physiological traits and genomic information. In this review paper, we introduce the activities of NBRP-RICE and our database, Oryzabase, which facilitates the access to NBRP-RICE resources and their genomic sequences as well as the current situation of wild Oryza genome sequencing efforts by NBRP-RICE and other institutes.
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Affiliation(s)
- Yutaka Sato
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan
- Department of Genetics, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Katsutoshi Tsuda
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan
- Department of Genetics, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Yoshiyuki Yamagata
- Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku Fukuoka 819-0395, Japan
| | - Hiroaki Matsusaka
- Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku Fukuoka 819-0395, Japan
| | - Hiromi Kajiya-Kanegae
- Research Center for Agricultural Information Technology, National Agriculture and Food Research Organization, Chiyoda-ku, Tokyo 100-0013, Japan
| | - Yuri Yoshida
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Ayumi Agata
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Kim Nhung Ta
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Sae Shimizu-Sato
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Toshiya Suzuki
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan
- Department of Genetics, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Misuzu Nosaka-Takahashi
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan
- Department of Genetics, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Takahiko Kubo
- Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku Fukuoka 819-0395, Japan
| | - Shoko Kawamoto
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan
- Department of Genetics, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Ken-Ichi Nonomura
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan
- Department of Genetics, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Hideshi Yasui
- Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku Fukuoka 819-0395, Japan
| | - Toshihiro Kumamaru
- Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku Fukuoka 819-0395, Japan
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24
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Miyaura K, Fujii T, Kubo T, Shinjoh H, Kato M, Toyofuku K, Niiya A, Kobayashi R, Ozawa Y, Murakami K, Morota M, Imai A, Ito Y, Kagami Y. PO-0169 Effects of uncertainty with Strut Adjusted Volume Implant applicator in Japan. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06328-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Yoshizawa A, Nakajima N, Kubo T. P38.05 Clinical, Genetic, Radiological, and Pathological Characteristics of Cribriform Adenocarcinoma of the Lung. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.786] [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: 11/26/2022]
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26
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Nakamura A, Yoneshima Y, Morita S, Ando M, Iwasawa S, Yoshioka H, Goto Y, Takeshita M, Harada T, Hirano K, Oguri T, Kondo M, Miura S, Hosomi Y, Kato T, Kubo T, Kishimoto J, Yamamoto N, Nakanishi Y, Okamoto I. OA03.05 Phase III Study Comparing Nab-Paclitaxel With Docetaxel in Patients With Previously Treated Advanced Non-Small-Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.282] [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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27
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Baba Y, Kubo T, Kawaguchi J, Ochi Y, Hirota T, Yamasaki N, Kitaoka H. High sensitivity cardiac troponin T is a useful biomarker for predicting prognosis of the patients with sarcoidosis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2121] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Cardiac involvement is one of the most significant prognostic factors for the patients with sarcoidosis. In spite of the advancement of diagnostic tools, such as cardiac magnetic resonance imaging or 18F-fluoro-2-deoxyglucose positron emission tomography, there is still significant room for improvement in cardiac screening and prognostic prediction.
Purpose
To evaluate the prognostic factors for the patients with sarcoidosis.
Methods and results
We prospectively studied 133 patients with sarcoidosis and evaluated clinical data including biomarkers. The mean age at diagnosis was 62.1±12.8 years. During a mean follow up period of 5.6±4.1 years, nine patients died and 27 patients suffered from cardiac events (cardiac death, heart failure admission, arrhythmic event). We divided patients into two groups according to cardiac events, event group had high serum high-sensitivity cardiac troponin T (hs-cTnT) (0.028±0.017 vs. 0.015±0.011 ng/ml, p<0.001), high BNP (409.2±634.0 vs. 122.4±195.8 pg/ml, p<0.001), low EF (43.1±16.4 vs. 59.2±15.5%, p<0.001). This was observed even if those patients were not diagnosed with cardiac involvement at the enrollment. On the other hand, there were no significant differences in the values of angiotensin-converting enzyme, lysozyme, soluble interleukin-2 receptor, or calcium in both groups. Multivariate analysis revealed that hs-cTnT was an independent biomarker to predict cardiac events (hs-cTnT >0.014 ng/ml: HR 3.2, 95% CI 1.02 to 10.19, p=0.046).
Conclusion
Hs-cTnT was a useful biomarker for predicting cardiac events for the patients with sarcoidosis even if cardiac involvement was not detected at initial evaluation.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- Y Baba
- Kochi Medical School, Kochi University, Cardiology and Geriatrics, Nankoku, Japan
| | - T Kubo
- Kochi Medical School, Kochi University, Cardiology and Geriatrics, Nankoku, Japan
| | - J Kawaguchi
- Kochi Medical School, Kochi University, Cardiology and Geriatrics, Nankoku, Japan
| | - Y Ochi
- Kochi Medical School, Kochi University, Cardiology and Geriatrics, Nankoku, Japan
| | - T Hirota
- Kochi Medical School, Kochi University, Cardiology and Geriatrics, Nankoku, Japan
| | - N Yamasaki
- Kochi Medical School, Kochi University, Cardiology and Geriatrics, Nankoku, Japan
| | - H Kitaoka
- Kochi Medical School, Kochi University, Cardiology and Geriatrics, Nankoku, Japan
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28
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Kubo T, Takano H, Takayama M, Doi Y, Minami Y, Ebato M, Inomata T, Katoh T, Okamoto R, Chikamori T, Watanabe E, Furugen A, Maekwa Y, Shimizu W, Kitaoka H. Baseline clinical features in a large-scale registration survey of patient with hypertrophic cardiomyopathy throughout Japan: J-HCM registry study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2085] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Hypertrophic cardiomyopathy (HCM) is a most prevalent primary myocardial disorder with heterogeneous clinical features. However, there have been few studies on clinical features of HCM as a prospective cohort. In 2015, we established a large-scale registration survey of patients with HCM throughout Japan, named J-HCM registry study.
Purpose
The aim of this study was to clarify the clinical features of Japanese patients with HCM.
Methods
J-HCM registry study is a prospective, multicenter investigation, consisting of 24 hospitals. This time, we present the baseline clinical characteristics in this survey.
Results
Total 1484 patients were registered. The ages at registration and at diagnosis were 65±15 and 56±17 years, respectively, and 806 patients (54%) were men. Majority of the patients (95%) was NYHA class I or II. With regard to subtypes of HCM, there were 526 patients (36%) in the HCM with left ventricular (LV) outflow tract obstruction, 126 patients (8%) in the mid-ventricular obstruction, 57 patients (4%) in the end-stage phase characterized by LV ejection fraction <50%, and 197 patients (14%) in apical HCM. At registration, 80 patients (6%) had prior successful recovery from sustained ventricular tachycardia or ventricular fibrillation, 162 patients (11%) suffered from heart failure hospitalization, and 64 patients (4%) had history of embolic event. Regarding invasive treatment, 160 patients (10%) had prior septal reduction therapy and 162 patients (11%) had ICD implantation. According to the 2014 European Society of Cardiology Guidelines on sudden cardiac death (SCD) prevention, the study patients were divided into 3 categories by the HCM Risk-SCD calculator: patients distribution, 4% in the high risk group (≥6% calculated HCM Risk-SCD at 5 years), 7% in the intermediate risk group (4% to <6%), 69% in the low risk group (<4%), and 16% in the patients with extreme characteristics (Figure 1).
Conclusions
In this multicenter registration survey of patients with HCM, the baseline clinical characteristics were almost similar to several retrospective large-scale cohorts in Western countries except older age and less symptomatic state. This study will provide important knowledge regarding management of HCM.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Kubo
- Kochi Medical School, Kochi, Japan
| | - H Takano
- Nippon Medical School Teaching Hospital, Tokyo, Japan
| | - M Takayama
- Sakakibara Heart Institute, Fucyu Tokyo, Japan
| | - Y.L Doi
- Kochi Medical School, Kochi, Japan
| | - Y Minami
- Tokyo Women's Medical University, Tokyo, Japan
| | - M Ebato
- Showa University Fujigaoka Hospital, Yokohama, Japan
| | - T Inomata
- Kitasato University School of Medicine, Sagamihara, Japan
| | - T Katoh
- Kyoto University, Kyoto, Japan
| | - R Okamoto
- Mie University Graduate School of Medicine, Tsu, Japan
| | - T Chikamori
- Tokyo Medical University Hospital, Tokyo, Japan
| | - E Watanabe
- Fujita Health University School of Medicine, Toyoake, Japan
| | - A Furugen
- Sapporo Cardio Vascular Clinic, Sapporo, Japan
| | - Y Maekwa
- Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - W Shimizu
- Nippon Medical School Teaching Hospital, Tokyo, Japan
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29
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Kubo T, Sugiura K, Ochi Y, Takahashi A, Baba Y, Hirota T, Yamasaki N, Doi Y, Kitaoka H. Prognostic impact of atrial fibrillation in patients with hypertrophic cardiomyopathy in a community-based Japanese cohort: results from Kochi RYOMA study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2082] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The prognostic impact of atrial fibrillation (AF) in patients with hypertrophic cardiomyopathy (HCM) is not fully elucidated.
Purpose
The aim of this study was to examine the prevalence and prognostic impact of AF in a prospectively assembled community-based HCM patient cohort in an aged Japanese community.
Methods
In 2004, we established a cardiomyopathy registration network in Kochi Prefecture, Japan, consisting of 9 hospitals, and finally 293 patients with HCM were followed.
Results
The ages at registration and at diagnosis were 63±14 and 56±16 years, respectively, and 197 patients (67%) were men. 86 patients (29%) showed AF. During follow-up period of 6.1±3.2 years, 44 patients died. In those patients, HCM-related deaths occurred in 23 patients with an annual mortality rate of 1.3%. Regarding HCM-related adverse events including HCM-related deaths, appropriate ICD discharge, heart failure admission and hospitalization for embolic events, a total of 77 cardiovascular events in 70 patients occurred. Multivariate analysis revealed that presence of AF, left ventricular (LV) outflow obstruction, NYHA functional class III, and lower LV fractional shortening at registration were significant predictors of these adverse events. During the follow-up period, additional 31 patients (11%) developed new-onset AF. Importantly, the incidence of HCM-related adverse events was significantly higher in patients with new AF observed from its onset compared with those with AF at registration (log-rank p=0.029) (Figure 1).
Conclusions
In an unselected HCM registry in an aged Japanese community, presence of AF, particularly new-onset AF, was associated with unfavorable clinical outcomes. AF is not just a marker of the disease stage but an important trigger of HCM-related adverse events.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Kubo
- Kochi Medical School, Kochi, Japan
| | | | - Y Ochi
- Kochi Medical School, Kochi, Japan
| | | | - Y Baba
- Kochi Medical School, Kochi, Japan
| | - T Hirota
- Kochi Medical School, Kochi, Japan
| | | | - Y.L Doi
- Kochi Medical School, Kochi, Japan
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30
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Michimasa S, Kobayashi M, Kiyokawa Y, Ota S, Yokoyama R, Nishimura D, Ahn DS, Baba H, Berg GPA, Dozono M, Fukuda N, Furuno T, Ideguchi E, Inabe N, Kawabata T, Kawase S, Kisamori K, Kobayashi K, Kubo T, Kubota Y, Lee CS, Matsushita M, Miya H, Mizukami A, Nagakura H, Oikawa H, Sakai H, Shimizu Y, Stolz A, Suzuki H, Takaki M, Takeda H, Takeuchi S, Tokieda H, Uesaka T, Yako K, Yamaguchi Y, Yanagisawa Y, Yoshida K, Shimoura S. Mapping of a New Deformation Region around ^{62}Ti. Phys Rev Lett 2020; 125:122501. [PMID: 33016755 DOI: 10.1103/physrevlett.125.122501] [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] [Received: 04/03/2020] [Revised: 06/12/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
We performed the first direct mass measurements of neutron-rich scandium, titanium, and vanadium isotopes around the neutron number 40 at the RIKEN RI Beam Factory using the time-of-flight magnetic-rigidity technique. The atomic mass excesses of ^{58-60}Sc, ^{60-62}Ti, and ^{62-64}V were measured for the first time. The experimental results show that the two-neutron separation energies in the vicinity of ^{62}Ti increase compared to neighboring nuclei. This shows that the masses of Ti isotopes near N=40 are affected by the Jahn-Teller effect. Therefore, a development of Jahn-Teller stabilization appears below the Cr isotopes, and the systematics in Sc, Ti, and V isotopes suggest that ^{62}Ti is located close to the peak of the Jahn-Teller effect.
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Affiliation(s)
- S Michimasa
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - M Kobayashi
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Kiyokawa
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Ota
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - R Yokoyama
- Department of Physics and Astronomy, the University of Tennessee, Knoxville, Tennessee 37996, USA
| | - D Nishimura
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Natural Sciences, Tokyo City University, Tamazutsumi 1-28-1, Setagaya-ku, Tokyo 158-8557, Japan
| | - D S Ahn
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Baba
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - G P A Berg
- Department of Physics and Joint Institute for Nuclear Astrophysics, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - M Dozono
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - N Fukuda
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Furuno
- Department of Physics, Kyoto University, Kitashirakawa-Oiwake, Sakyo, Kyoto 606-8502, Japan
| | - E Ideguchi
- Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - N Inabe
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Kawabata
- Department of Physics, Kyoto University, Kitashirakawa-Oiwake, Sakyo, Kyoto 606-8502, Japan
| | - S Kawase
- Department of Advanced Energy Engineering Science, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - K Kisamori
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Kobayashi
- Department of Physics, Rikkyo University, Toshima, Tokyo 171-8501, Japan
| | - T Kubo
- Facility for Rare Isotope Beams, Michigan State University, 640 S Shaw Lane, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, 640 S Shaw Lane, East Lansing, Michigan 48824, USA
| | - Y Kubota
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - C S Lee
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - M Matsushita
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Miya
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - A Mizukami
- Department of Physics, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - H Nagakura
- Department of Physics, Rikkyo University, Toshima, Tokyo 171-8501, Japan
| | - H Oikawa
- Department of Physics, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - H Sakai
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Shimizu
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - A Stolz
- National Superconducting Cyclotron Laboratory, Michigan State University, 640 S Shaw Lane, East Lansing, Michigan 48824, USA
| | - H Suzuki
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - M Takaki
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Takeda
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Takeuchi
- Department of Physics, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
| | - H Tokieda
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Uesaka
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Yako
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Yamaguchi
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Yanagisawa
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Yoshida
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Shimoura
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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31
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Kihara M, Ushijima T, Yamagata Y, Tsuruda Y, Higa T, Abiko T, Kubo T, Wada M, Suetsugu N, Gotoh E. Light-induced chloroplast movements in Oryza species. J Plant Res 2020; 133:525-535. [PMID: 32303870 DOI: 10.1007/s10265-020-01189-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
Light-induced chloroplast movements control efficient light utilization in leaves, and thus, are essential for leaf photosynthesis and biomass production under fluctuating light conditions. Chloroplast movements have been intensively analyzed using wild-type and mutant plants of Arabidopsis thaliana. The molecular mechanism and the contribution to biomass production were elucidated. However, the knowledge of chloroplast movements is very scarce in other plant species, especially grass species including crop plants. Because chloroplast movements are efficient strategy to optimize light capture in leaves and thus promote leaf photosynthesis and biomass, analysis of chloroplast movements in crops is required for biomass production. Here, we analyzed chloroplast movements in a wide range of cultivated and wild species of genus Oryza. All examined Oryza species showed the blue-light-induced chloroplast movements. However, O. sativa and its ancestral species O. rufipogon, both of which are AA-genome species and usually grown in open condition where plants are exposed to full sunlight, showed the much weaker chloroplast movements than Oryza species that are usually grown under shade or semi-shade conditions, including O. officinalis, O. eichingeri, and O. granulata. Further detailed analyses of different O. officinalis accessions, including sun, semi-shade, and shade accessions, indicated that the difference in chloroplast movement strength between domesticated rice plants and wild species might result from the difference in habitat, and the shape of mesophyll chlorenchyma cells. The findings of this study provide useful information for optimizing Oryza growth conditions, and lay the groundwork for improving growth and yield in staple food crop Oryza sativa.
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Affiliation(s)
- Miki Kihara
- Department of Forest Environmental Sciences, Faculty of Agriculture, Kyushu University, Motooka, Fukuoka, 819-0395, Japan
| | - Tomokazu Ushijima
- Department of Forest Environmental Sciences, Faculty of Agriculture, Kyushu University, Motooka, Fukuoka, 819-0395, Japan
- Department of Agricultural Science and Technology, Faculty of Agriculture, Setsunan University, Hirakata, Osaka, 573-0101, Japan
| | - Yoshiyuki Yamagata
- Department of Forest Environmental Sciences, Faculty of Agriculture, Kyushu University, Motooka, Fukuoka, 819-0395, Japan
| | - Yukinari Tsuruda
- Department of Forest Environmental Sciences, Faculty of Agriculture, Kyushu University, Motooka, Fukuoka, 819-0395, Japan
| | - Takeshi Higa
- Institute for Protein Research, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Tomomi Abiko
- Department of Forest Environmental Sciences, Faculty of Agriculture, Kyushu University, Motooka, Fukuoka, 819-0395, Japan
| | - Takahiko Kubo
- Department of Forest Environmental Sciences, Faculty of Agriculture, Kyushu University, Motooka, Fukuoka, 819-0395, Japan
| | - Masamitsu Wada
- Department of Biological Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Noriyuki Suetsugu
- Department of Botany, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan.
| | - Eiji Gotoh
- Department of Forest Environmental Sciences, Faculty of Agriculture, Kyushu University, Motooka, Fukuoka, 819-0395, Japan.
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32
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Tang TL, Uesaka T, Kawase S, Beaumel D, Dozono M, Fujii T, Fukuda N, Fukunaga T, Galindo-Uribarri A, Hwang SH, Inabe N, Kameda D, Kawahara T, Kim W, Kisamori K, Kobayashi M, Kubo T, Kubota Y, Kusaka K, Lee CS, Maeda Y, Matsubara H, Michimasa S, Miya H, Noro T, Obertelli A, Ogata K, Ota S, Padilla-Rodal E, Sakaguchi S, Sakai H, Sasano M, Shimoura S, Stepanyan SS, Suzuki H, Takaki M, Takeda H, Tokieda H, Wakasa T, Wakui T, Yako K, Yanagisawa Y, Yasuda J, Yokoyama R, Yoshida K, Yoshida K, Zenihiro J. How Different is the Core of ^{25}F from ^{24}O_{g.s.} ? Phys Rev Lett 2020; 124:212502. [PMID: 32530645 DOI: 10.1103/physrevlett.124.212502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/15/2019] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Abstract
The structure of a neutron-rich ^{25}F nucleus is investigated by a quasifree (p,2p) knockout reaction at 270A MeV in inverse kinematics. The sum of spectroscopic factors of π0d_{5/2} orbital is found to be 1.0±0.3. However, the spectroscopic factor with residual ^{24}O nucleus being in the ground state is found to be only 0.36±0.13, while those in the excited state is 0.65±0.25. The result shows that the ^{24}O core of ^{25}F nucleus significantly differs from a free ^{24}O nucleus, and the core consists of ∼35% ^{24}O_{g.s.}. and ∼65% excited ^{24}O. The result may infer that the addition of the 0d_{5/2} proton considerably changes neutron structure in ^{25}F from that in ^{24}O, which could be a possible mechanism responsible for the oxygen dripline anomaly.
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Affiliation(s)
- T L Tang
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Uesaka
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Kawase
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - D Beaumel
- Institut de physique nucléaire d'Orsay, 91406 Orsay, France
| | - M Dozono
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Fujii
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - N Fukuda
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Fukunaga
- Kyushu University, 6-10-1 Hakozaki, Higashi, Fukuoka 812-8581, Japan
| | - A Galindo-Uribarri
- Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, Tennessee 37831, USA
| | - S H Hwang
- Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - N Inabe
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D Kameda
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Kawahara
- Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - W Kim
- Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - K Kisamori
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - M Kobayashi
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - T Kubo
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Kubota
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - K Kusaka
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - C S Lee
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - Y Maeda
- University of Miyazaki, 1-1 Gakuen Kibanadai-nishi, Miyazaki 889-2192, Japan
| | - H Matsubara
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Michimasa
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - H Miya
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - T Noro
- Kyushu University, 6-10-1 Hakozaki, Higashi, Fukuoka 812-8581, Japan
| | - A Obertelli
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - K Ogata
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- Department of Physics, Osaka City University, Osaka 558-8585, Japan
| | - S Ota
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - E Padilla-Rodal
- Universidad Nacional Autónoma de México, Instituto de Ciencias Nucleares, AP 70-543, México City 04510, DF, México
| | - S Sakaguchi
- Kyushu University, 6-10-1 Hakozaki, Higashi, Fukuoka 812-8581, Japan
| | - H Sakai
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - M Sasano
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Shimoura
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - S S Stepanyan
- Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - H Suzuki
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - M Takaki
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - H Takeda
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Tokieda
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - T Wakasa
- Kyushu University, 6-10-1 Hakozaki, Higashi, Fukuoka 812-8581, Japan
| | - T Wakui
- CYRIC, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - K Yako
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - Y Yanagisawa
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - J Yasuda
- Kyushu University, 6-10-1 Hakozaki, Higashi, Fukuoka 812-8581, Japan
| | - R Yokoyama
- Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - K Yoshida
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Yoshida
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - J Zenihiro
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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Cook KJ, Nakamura T, Kondo Y, Hagino K, Ogata K, Saito AT, Achouri NL, Aumann T, Baba H, Delaunay F, Deshayes Q, Doornenbal P, Fukuda N, Gibelin J, Hwang JW, Inabe N, Isobe T, Kameda D, Kanno D, Kim S, Kobayashi N, Kobayashi T, Kubo T, Leblond S, Lee J, Marqués FM, Minakata R, Motobayashi T, Muto K, Murakami T, Murai D, Nakashima T, Nakatsuka N, Navin A, Nishi S, Ogoshi S, Orr NA, Otsu H, Sato H, Satou Y, Shimizu Y, Suzuki H, Takahashi K, Takeda H, Takeuchi S, Tanaka R, Togano Y, Tsubota J, Tuff AG, Vandebrouck M, Yoneda K. Halo Structure of the Neutron-Dripline Nucleus ^{19}B. Phys Rev Lett 2020; 124:212503. [PMID: 32530691 DOI: 10.1103/physrevlett.124.212503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/24/2020] [Accepted: 05/06/2020] [Indexed: 06/11/2023]
Abstract
The heaviest bound isotope of boron ^{19}B has been investigated using exclusive measurements of its Coulomb dissociation, into ^{17}B and two neutrons, in collisions with Pb at 220 MeV/nucleon. Enhanced electric dipole (E1) strength is observed just above the two-neutron decay threshold with an integrated E1 strength of B(E1)=1.64±0.06(stat)±0.12(sys) e^{2} fm^{2} for relative energies below 6 MeV. This feature, known as a soft E1 excitation, provides the first firm evidence that ^{19}B has a prominent two-neutron halo. Three-body calculations that reproduce the energy spectrum indicate that the valence neutrons have a significant s-wave configuration and exhibit a dineutronlike correlation.
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Affiliation(s)
- K J Cook
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - T Nakamura
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - Y Kondo
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - K Hagino
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Ogata
- Research Center for Nuclear Physics, Osaka University, Ibaraki 567-0047, Japan
- Department of Physics, Osaka City University, Osaka 558-8585, Japan
| | - A T Saito
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - N L Achouri
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, 14050 Caen Cedex, France
| | - T Aumann
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - H Baba
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - F Delaunay
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, 14050 Caen Cedex, France
| | - Q Deshayes
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, 14050 Caen Cedex, France
| | - P Doornenbal
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - N Fukuda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - J Gibelin
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, 14050 Caen Cedex, France
| | - J W Hwang
- Department of Physics and Astronomy, Seoul National University, 599 Gwanak, Seoul 151-742, Republic of Korea
| | - N Inabe
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Isobe
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - D Kameda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - D Kanno
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - S Kim
- Department of Physics and Astronomy, Seoul National University, 599 Gwanak, Seoul 151-742, Republic of Korea
| | - N Kobayashi
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - T Kobayashi
- Department of Physics, Tohoku University, Aramaki Aoba 6-3, Aoba, Sendai, Miyagi 980-8578, Japan
| | - T Kubo
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - S Leblond
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, 14050 Caen Cedex, France
| | - J Lee
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - F M Marqués
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, 14050 Caen Cedex, France
| | - R Minakata
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - T Motobayashi
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - K Muto
- Department of Physics, Tohoku University, Aramaki Aoba 6-3, Aoba, Sendai, Miyagi 980-8578, Japan
| | - T Murakami
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - D Murai
- Department of Physics, Rikkyo University, Toshima, Tokyo 171-8501, Japan
| | - T Nakashima
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - N Nakatsuka
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - A Navin
- GANIL, CEA/DRF-CNRS/IN2P3, 14076 Caen Cedex 05, France
| | - S Nishi
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - S Ogoshi
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - N A Orr
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, 14050 Caen Cedex, France
| | - H Otsu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - H Sato
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Y Satou
- Department of Physics and Astronomy, Seoul National University, 599 Gwanak, Seoul 151-742, Republic of Korea
| | - Y Shimizu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - H Suzuki
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - K Takahashi
- Department of Physics, Tohoku University, Aramaki Aoba 6-3, Aoba, Sendai, Miyagi 980-8578, Japan
| | - H Takeda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - S Takeuchi
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - R Tanaka
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - Y Togano
- ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
- Department of Physics, Rikkyo University, Toshima, Tokyo 171-8501, Japan
| | - J Tsubota
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - A G Tuff
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
| | - M Vandebrouck
- IPN Orsay, Université Paris Sud, IN2P3-CNRS, 91406 Orsay Cedex, France
| | - K Yoneda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
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Hasegawa J, Katsuragi S, Tanaka H, Kubo T, Sekizawa A, Ishiwata I, Ikeda T. How should maternal death due to suicide be classified? Discrepancy between ICD-10 and ICD-MM. BJOG 2020; 127:665-667. [PMID: 31919941 DOI: 10.1111/1471-0528.16087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2019] [Indexed: 11/28/2022]
Affiliation(s)
- J Hasegawa
- Department of Obstetrics and Gynaecology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - S Katsuragi
- Department of Obstetrics and Gynaecology, Mie University School of Medicine, Tsu, Japan
| | - H Tanaka
- Department of Obstetrics and Gynaecology, Mie University School of Medicine, Tsu, Japan
| | - T Kubo
- Shirota Obstetrical and Gynecological Hospital, Zama, Japan
| | - A Sekizawa
- Department of Obstetrics and Gynaecology, Showa University School of Medicine, Tokyo, Japan
| | - I Ishiwata
- Ishiwata Obstetrics and Gynaecology Hospital, Mito, Japan
| | - T Ikeda
- Department of Obstetrics and Gynaecology, Mie University School of Medicine, Tsu, Japan
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Vaquero V, Jungclaus A, Aumann T, Tscheuschner J, Litvinova EV, Tostevin JA, Baba H, Ahn DS, Avigo R, Boretzky K, Bracco A, Caesar C, Camera F, Chen S, Derya V, Doornenbal P, Endres J, Fukuda N, Garg U, Giaz A, Harakeh MN, Heil M, Horvat A, Ieki K, Imai N, Inabe N, Kalantar-Nayestanaki N, Kobayashi N, Kondo Y, Koyama S, Kubo T, Martel I, Matsushita M, Million B, Motobayashi T, Nakamura T, Nakatsuka N, Nishimura M, Nishimura S, Ota S, Otsu H, Ozaki T, Petri M, Reifarth R, Rodríguez-Sánchez JL, Rossi D, Saito AT, Sakurai H, Savran D, Scheit H, Schindler F, Schrock P, Semmler D, Shiga Y, Shikata M, Shimizu Y, Simon H, Steppenbeck D, Suzuki H, Sumikama T, Symochko D, Syndikus I, Takeda H, Takeuchi S, Taniuchi R, Togano Y, Tsubota J, Wang H, Wieland O, Yoneda K, Zenihiro J, Zilges A. Fragmentation of Single-Particle Strength around the Doubly Magic Nucleus ^{132}Sn and the Position of the 0f_{5/2} Proton-Hole State in ^{131}In. Phys Rev Lett 2020; 124:022501. [PMID: 32004026 DOI: 10.1103/physrevlett.124.022501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 11/29/2019] [Indexed: 06/10/2023]
Abstract
Spectroscopic factors of neutron-hole and proton-hole states in ^{131}Sn and ^{131}In, respectively, were measured using one-nucleon removal reactions from doubly magic ^{132}Sn at relativistic energies. For ^{131}In, a 2910(50)-keV γ ray was observed for the first time and tentatively assigned to a decay from a 5/2^{-} state at 3275(50) keV to the known 1/2^{-} level at 365 keV. The spectroscopic factors determined for this new excited state and three other single-hole states provide first evidence for a strong fragmentation of single-hole strength in ^{131}Sn and ^{131}In. The experimental results are compared to theoretical calculations based on the relativistic particle-vibration coupling model and to experimental information for single-hole states in the stable doubly magic nucleus ^{208}Pb.
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Affiliation(s)
- V Vaquero
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
| | - A Jungclaus
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
| | - T Aumann
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - J Tscheuschner
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - E V Litvinova
- Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008-5252, USA
| | - J A Tostevin
- Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom
| | - H Baba
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - D S Ahn
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - R Avigo
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
- INFN, Sezione di Milano, I-20133 Milano, Italy
| | - K Boretzky
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - A Bracco
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
- INFN, Sezione di Milano, I-20133 Milano, Italy
| | - C Caesar
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - F Camera
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
- INFN, Sezione di Milano, I-20133 Milano, Italy
| | - S Chen
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - V Derya
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - P Doornenbal
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - J Endres
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - N Fukuda
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - U Garg
- Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - A Giaz
- Dipartimento di Fisica dell'Università degli Studi di Milano, I-20133 Milano, Italy
| | - M N Harakeh
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
- KVI-CART, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands
| | - M Heil
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - A Horvat
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - K Ieki
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - N Imai
- Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - N Inabe
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | | | - N Kobayashi
- Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y Kondo
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - S Koyama
- Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Kubo
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - I Martel
- Departamento de Fsica Aplicada, Universidad de Huelva, E-21071 Huelva, Spain
| | - M Matsushita
- Center for Nuclear Study, The University of Tokyo, Tokyo 113-0033, Japan
| | - B Million
- INFN, Sezione di Milano, I-20133 Milano, Italy
| | - T Motobayashi
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - T Nakamura
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - N Nakatsuka
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - M Nishimura
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - S Nishimura
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - S Ota
- Center for Nuclear Study, The University of Tokyo, Tokyo 113-0033, Japan
| | - H Otsu
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - T Ozaki
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - M Petri
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - R Reifarth
- Institut für Kernphysik, Goethe University Frankfurt, D-60438 Frankfurt, Germany
| | - J L Rodríguez-Sánchez
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
- Universidad de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - D Rossi
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - A T Saito
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - H Sakurai
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
- Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - D Savran
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - H Scheit
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - F Schindler
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - P Schrock
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - D Semmler
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - Y Shiga
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - M Shikata
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - Y Shimizu
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - H Simon
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - D Steppenbeck
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - H Suzuki
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - T Sumikama
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - D Symochko
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - I Syndikus
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - H Takeda
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - S Takeuchi
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - R Taniuchi
- Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y Togano
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - J Tsubota
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - H Wang
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - O Wieland
- INFN, Sezione di Milano, I-20133 Milano, Italy
| | - K Yoneda
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - J Zenihiro
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, 351-0198 Saitama, Japan
| | - A Zilges
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
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Hozumi T, Morimoto J, Nishi T, Takemoto K, Fujita S, Wada T, Shimamura K, Kashiawagi M, Shiono Y, Kuroi A, Matsuo Y, Ino Y, Kubo T, Tanaka A, Akasaka T. P1518 Relationship between post-operative asymptomatic status and reverse remodeling of large left atrium in patients with aortic stenosis who underwent aortic valve replacement. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.942] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Recently, we have reported that large left atrial volume (minimum left atrial volume index : LAVImin ≥30ml/m²) at end-diastole determined by direct exposure of left ventricular (LV) end-diastolic pressure can predict post-operative symptomatic status after aortic valve replacement (AVR) in aortic stenosis (AS) patients with high sensitivity and modest specificity. Reverse remodeling of large LAVImin after AVR may contribute to false positive for the prediction of post-operative symptomatic status in patients with AS.
Purpose
The purpose of this study was to evaluate relationship between post-operative symptomatic status and reverse remodeling of large LAVImin in patients with AS who underwent AVR.
Methods
The study population consisted of 75 patients with AS who underwent AVR and were followed up for 600 days after AVR, after the exclusion of the followings; atrial fibrillation, significant coronary artery disease, significant mitral valve disease, pacemaker rhythm, and inadequate echocardiographic images. We measured LAVImin by biplane Simpson"s method before and after AVR. Preoperative large LAVImin (≥30ml/m²) according to the previous study was observed in 32 (43%) of 75 patients. We divided these 32 patients into two groups according to the post-operative symptomatic status during the follow-up period.
Results
There was no significant difference in pre-operative LAVImin between patients with and without post-operative symptom (46.5 ± 13.4 vs 40.4 ± 8.6 ml/m²). On the other hand, post-operative LAVImin in patients without post-operative symptom was significantly smaller than that in patients with post-operative symptom (31.5 ± 8.6 vs 54.8 ± 14.0 ml/m², p < 0.01). While significant regression in LAVImin after AVR was observed in patients without post-operative symptom (40.4 ± 8.6 to 31.5 ± 8.6 ml/m², p < 0.05), no regression in LAVImin after AVR was observed in patients with post-operative symptom (46.5 ± 13.4 to 54.8 ± 14.0 ml/m²).
Conclusions
Reverse remodeling of large LAVmin in patients with AS who underwent AVR was observed in post-operative asymptomatic group, but not in symptomatic group. These results suggest that reverse remodeling of large LAVImin after AVR could contribute to the post-operative asymptomatic status in patients with AS who underwent AVR.
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Affiliation(s)
- T Hozumi
- Wakayama Medical University, Wakayama, Japan
| | - J Morimoto
- Wakayama Medical University, Wakayama, Japan
| | - T Nishi
- Wakayama Medical University, Wakayama, Japan
| | - K Takemoto
- Wakayama Medical University, Wakayama, Japan
| | - S Fujita
- Wakayama Medical University, Wakayama, Japan
| | - T Wada
- Wakayama Medical University, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Wakayama, Japan
| | | | - Y Shiono
- Wakayama Medical University, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Wakayama, Japan
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Teraguchi I, Hozumi T, Emori H, Takemoto K, Maniwa N, Kashiwagi M, Shimamura K, Shiono Y, Kuroi A, Matsuo Y, Ino Y, Kitabata H, Kubo T, Tanaka A, Akasaka T. P91 Prognostic value of tissue-tracking mitral annular displacement by speckle-tracking echocardiography in asymptomatic patients with aortic stenosis with preserved left ventricular ejection fraction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.039] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Management of asymptomatic severe aortic stenosis (AS) patients with preserved left ventricular (LV) ejection fraction (EF) remains controversial. Recent studies using have shown that decreased LV longitudinal deformation assessed by global longitudinal strain analysis can predict adverse cardiac events in AS patients with preserved EF. Tissue-tracking mitral annular displacement (TMAD) by speckle-tracking echocardiography provides rapid and simple assessment of LV longitudinal deformation even when the acoustic window is poor (Fig.1).
Purpose
The purpose of this study was to examine the value of TMAD to predict occurrence of the cardiac events in asymptomatic severe AS patients with preserved EF.
Methods
We studied 103 patients with severe AS and preserved EF [aortic velocity >4m/s or aortic valve area (AVA) <1.0 cm2, EF >50%]in whom TMAD was measured, and a total of 44 patients were included in the final data setaccording to the exclusion criteria. Using TMAD analysis software, the base-to-apex displacement of automatically defined mid-point of mitral annular line in four-chamber view was quickly assessed, and the percentage of its displacement to LV length at end-diastole (%TMAD) was calculated (Fig.1). We investigated the association between %TMAD and the cardiac events including implementation of hospitalization due to heart failure, decreased EF (< 50%), aortic valve replacement or transcatheter aortic valve implantation due to appearance of symptoms and cardiac death,
Results
In all the final study patients, %TMAD was successfully and quickly (within 10 seconds) evaluated. During a follow-up, the cardiac events developed in 16 (36%) of 44 patients. Tableshows echocardiographic parameters in patients with and without the cardiac events. %TMAD was significantly impaired in patients with the cardiac events compared with those without the cardiac events (9.6 ± 0.6 vs 12.1 ± 0.4%, p= 0.002). The other parameters were not involved in the event occurrence; age, LV mass index, EF, aortic velocity, AVA, tricuspid regurgitation pressure gradient (TR-PG), early diastolic /atrial filling velocity (E/A), early diastolic velocity of the mitral valve annulus (e’) and E/e’. In multiple variable analysis, %TMAD was an independentpredictor of the cardiac events (HR; 12.1, p= 0.001). ROC analysis revealed that the area under the curve of %TMAD was 0.81 for the cardiac events. Kaplan-Meier analysis showed %TMAD (cut-off: 11.9) provides a significant difference in the cardiac event (Fig. 2). Conclusions. The present results suggests that TMAD easily and rapidly estimated by speckle-tracking echocardiography can be used as a simple method to predict occurrence of the cardiac events in asymptomatic severe AS patients with preserved EF.
Abstract P91 Figure 1,2 and Table
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Affiliation(s)
- I Teraguchi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - H Emori
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - K Takemoto
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - N Maniwa
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
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Sun X, Wang H, Otsu H, Sakurai H, Ahn D, Aikawa M, Fukuda N, Isobe T, Kawakami S, Koyama S, Kubo T, Kubono S, Lorusso G, Maeda Y, Makinaga A, Momiyama S, Nakano K, Niikura M, Shiga Y, Söderström PA, Suzuki H, Takeda H, Takeuchi S, Taniuchi S, Watanabe Y, Watanabe Y, Yamasaki H, Yoshida K. Cross-section measurement in the reactions of 136Xe on proton, deuteron and carbon. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202023901037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The isotopic production cross sections for the reactions of 136Xe induced by proton, deuteron and carbon at 168 MeV/u were obtained by using the inverse kinematics technique at RIKEN Radioactive Isotope Beam Factory. The target dependence of the cross sections was investigated systematically. It was found that for the light-mass products, the cross sections on carbon are larger than those on deuteron and proton. The measured cross sections on proton were compared with the previous data at higher reaction energies to study the energy dependence. The experimental results were compared with the theoretical calculations including both the intranuclear cascade and evaporation processes using PHITS and with the EPAX and SPACS empirical parameterizations.
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Abstract
BACKGROUND Paramedics need to be in good physical health to be able to respond to emergencies. We hypothesized that near misses by paramedics and unanticipated incidents that cause no harm may be associated with presenteeism during emergency rescues. AIMS To examine the association between presenteeism and near misses among paramedics. METHODS A cross-sectional study was conducted among 254 paramedics using a self-administered questionnaire. Presenteeism was measured using the work functioning impairment scale (WFun). RESULTS Twelve per cent of respondents experienced high work function impairment indicating presenteeism. The rate of near-miss experiences steadily increased with increasing work function impairment among paramedics (WFun score category: middle, odds ratio (OR) 3.62, 95% confidence interval (CI) 1.62-8.11; high, OR 4.36, 95% CI 1.37-13.84; very high, OR 8.62, 95% CI 2.09-35.48). CONCLUSIONS This study demonstrated a positive relationship between impaired work function indicating presenteeism and near misses among paramedics. This suggests that presenteeism may be associated with errors that have the potential to cause serious accidents. Improved access to treatment for frequent health problems may reduce the number of incidents among paramedics.
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Affiliation(s)
- T Ishimaru
- Department of Health Management, Nishinihon Occupational Health Service Center, Kitakyushu, Japan.,Department of Occupational Health Practice and Management, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - T Kubo
- Department of Environmental Epidemiology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - K Honno
- Department of Public Health, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Y Toyokuni
- Department of Public Health, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Y Fujino
- Department of Environmental Epidemiology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu, Japan
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Ahn DS, Fukuda N, Geissel H, Inabe N, Iwasa N, Kubo T, Kusaka K, Morrissey DJ, Murai D, Nakamura T, Ohtake M, Otsu H, Sato H, Sherrill BM, Shimizu Y, Suzuki H, Takeda H, Tarasov OB, Ueno H, Yanagisawa Y, Yoshida K. Location of the Neutron Dripline at Fluorine and Neon. Phys Rev Lett 2019; 123:212501. [PMID: 31809143 DOI: 10.1103/physrevlett.123.212501] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Indexed: 06/10/2023]
Abstract
A search for the heaviest isotopes of fluorine, neon, and sodium was conducted by fragmentation of an intense ^{48}Ca beam at 345 MeV/nucleon with a 20-mm-thick beryllium target and identification of isotopes in the large-acceptance separator BigRIPS at the RIKEN Radioactive Isotope Beam Factory. No events were observed for ^{32,33}F, ^{35,36}Ne, and ^{38}Na and only one event for ^{39}Na after extensive running. Comparison with predicted yields excludes the existence of bound states of these unobserved isotopes with high confidence levels. The present work indicates that ^{31}F and ^{34}Ne are the heaviest bound isotopes of fluorine and neon, respectively. The neutron dripline has thus been experimentally confirmed up to neon for the first time since ^{24}O was confirmed to be the dripline nucleus nearly 20 years ago. These data provide new keys to understanding the nuclear stability at extremely neutron-rich conditions.
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Affiliation(s)
- D S Ahn
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - N Fukuda
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Geissel
- GSI, Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt, Germany
| | - N Inabe
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - N Iwasa
- Department of Physics, Tohoku University, 6-3, Aramaki Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - T Kubo
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Kusaka
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D J Morrissey
- National Superconducting Cyclotron Laboratory, Michigan State University, 640 South Shaw Lane, East Lansing, Michigan 48824, USA
| | - D Murai
- Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan
| | - T Nakamura
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - M Ohtake
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Otsu
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Sato
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - B M Sherrill
- National Superconducting Cyclotron Laboratory, Michigan State University, 640 South Shaw Lane, East Lansing, Michigan 48824, USA
| | - Y Shimizu
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Suzuki
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Takeda
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - O B Tarasov
- National Superconducting Cyclotron Laboratory, Michigan State University, 640 South Shaw Lane, East Lansing, Michigan 48824, USA
| | - H Ueno
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Yanagisawa
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Yoshida
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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41
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Kubo T, Nogami N, Bessho A, Morita A, Ikeo S, Yokoyama T, Ishihara M, Honda T, Fujimoto N, Murakami S, Kaira K, Harada T, Nakamura K, Iwasawa S, Shimokawa T, Kiura K, Yamashita N, Okamoto H. Phase II trial of carboplatin, nab-paclitaxel and bevacizumab for advanced non-squamous non-small cell lung cancer (CARNAVAL study; TORG1424/OLCSG1402). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.037] [Citation(s) in RCA: 1] [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] [Indexed: 11/14/2022] Open
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Hamada T, Kubo T, Nakaoka Y, Kawai K, Yabe T, Furuno T, Kondo F, Yamada E, Yamasaki N, Kitaoka H. P3536Prevalence and clinical impact of social frailty in elderly patients hospitalized for acute decompensated heart failure: a multicenter prospective cohort study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0400] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Purpose
The aim of this study was to investigate clinical characteristics of socially frail patients and an association with social frailty and short-term rehospitalization for worsening heart failure.
Methods
We analyzed 169 elderly patients (≥65 years old) hospitalized for acute decompensated heart failure (ADHF) between June 2017 and August 2018 in our prospective HF registry in Japan. The patients with activities of daily living dependence and without data of social frailty and outcome were excluded. Social frailty was determined based on their responses to the 5 questions (living alone, eating alone, going out less frequently, rarely visiting friends, not helpful to friends or family). Patients with none of these components were considered social non-frailty; those with one component were considered social prefrailty; those with two or more components were considered social frailty. The outcome was rehospitalization for worsening HF within 6 months after discharge.
Results
The mean age was 79±8 years old. Social frailty in 86 patients (50.8%), social prefrailty in 41 patients (24.3%), and social non-frailty in 42 patients (24.9%) were observed. Age, body mass index, geriatrics nutritional risk index, Hasegawa dementia rating scale-revised score, gait speed, and handgrip strength values were significantly different among the these three groups (all Ps for trend <0.01). Left ventricular ejection fraction, brain natriuretic peptide values, and the proportion of the patients with the symptom of New York Heart Association class III/IV did not vary significantly between the groups. Kaplan-Meier analysis revealed that higher prevalence of rehospitalization for worsening HF within 6 months in the social frailty group compared to that in the social non-frailty group (Log-rank p<0.05). In a Cox proportional hazard model after adjusting covariates, patients with social frailty (hazard ratio 4.77; 95% CI 1.61–14.12, p<0.005) and social prefrailty (hazard ratio 3.73; 95% CI 1.12–12.41, p<0.05) had an increased risk of rehospitalization for worsening HF within 6 months compared with those with social non-frailty.
Conclusion
This study revealed that social frailty was common in elderly patients hospitalized for ADHF, and social frailty was an independent predictor of rehospitalization for worsening HF within 6 months after discharge.
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Affiliation(s)
- T Hamada
- Kochi Medical School, Kochi University, Cardiology, Nankoku, Japan
| | - T Kubo
- Kochi Medical School, Kochi University, Cardiology, Nankoku, Japan
| | - Y Nakaoka
- Chikamori Hospital, Cardiology, Kochi, Japan
| | - K Kawai
- Chikamori Hospital, Cardiology, Kochi, Japan
| | - T Yabe
- Kochi Prefectural Hatakenmin Hospital, Cardiology, Sukumo, Japan
| | - T Furuno
- Kochi Prefectural Aki General Hospital, Cardiology, Aki, Japan
| | - F Kondo
- Kochi Red Cross Hospital, Cardiology, Kochi, Japan
| | - E Yamada
- Susaki Kuroshio Hospital, Cardiology, Susaki, Japan
| | - N Yamasaki
- Kochi Medical School, Kochi University, Cardiology, Nankoku, Japan
| | - H Kitaoka
- Kochi Medical School, Kochi University, Cardiology, Nankoku, Japan
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43
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Emori H, Kubo T, Tanigaki T, Kawase Y, Shiono Y, Shimamura K, Sobue Y, Matsuo Y, Hirata T, Kitabata H, Ota H, Ino Y, Okubo M, Matsuo H, Akasaka T. P1252Diagnostic performance of quantitative flow ratio from coronary angiography versus fractional flow reserve from computed tomography. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0210] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
QFR and FFRCT are recently developed, less-invasive techniques for functional assessment of coronary artery disease.
Objectives
We compared the diagnostic performance between fractional flow reserve derived from computed tomography (FFRCT) and quantitative flow ratio (QFR) derived from coronary angiography, using FFR as the standard reference.
Methods
We measured FFRCT, QFR and FFR in 152 patients (233 vessels) with stable coronary artery disease.
Results
QFR was highly correlated with FFR (r=0.78, p<0.001), while FFRCT was moderately correlated with FFR (r=0.63, p<0.001). Both QFR and FFRCT showed good agreements with FFR, presenting small values of mean difference and root-mean-squared deviation (FFR -QFR: 0.02±0.09 and FFR -FFRCT: 0.03±0.11). The AUC of QFR was significantly greater than that of 3D-QCA-derived %DS (0.93 vs. 0.78; difference: 0.15; 95% CI: 0.09 to 0.20; p<0.001). The AUC of FFRCTwas significantly greater than that of CCTA-derived %DS (0.82 vs. 0.70; difference: 0.12; 95% CI: 0.05 to 0.19; p<0.001). The AUC of QFR was significantly greater than that of FFRCT (0.93 vs. 0.82; difference: 0.11; 95% CI: 0.05 to 0.16; p<0.001). The sensitivity, specificity, positive predictive value, and negative predictive valueof QFR ≤0.80 for predicting FFR ≤0.80 were 90%, 82%, 81%, and 90%, respectively. Those of FFRCT ≤0.80 for predicting FFR ≤0.80 were 82%, 70%, 70%, and 82%, respectively. The diagnostic accuracy of QFR ≤0.80 for predicting FFR ≤0.80 was 85% [95% confidence interval: 81% to 89%], while that of FFRCT≤0.80 for predicting FFR ≤0.80was 76% [95% confidence interval: 70% to 80%].
Figure 1. Comparison of FFR ≤0.80 predictors
Conclusions
Both QFR and FFRCTpossessed the ability to accurately evaluate the functional severity of coronary stenosis.
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Affiliation(s)
- H Emori
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | | | | | - Y Shiono
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | - Y Sobue
- Gifu Heart Center, Gifu, Japan
| | - Y Matsuo
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | | | - H Kitabata
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | - H Ota
- Gifu Heart Center, Gifu, Japan
| | - Y Ino
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | - M Okubo
- Gifu Heart Center, Gifu, Japan
| | | | - T Akasaka
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
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44
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Wada T, Shiono Y, Higashioka D, Kashiwagi M, Shimamura K, Kuroi A, Honda K, Matsuo Y, Kitabata H, Ino Y, Kubo T, Tanaka A, Hozumi T, Nishimura Y, Akasaka T. P2700Impact of instantaneous wave-free ratio on graft failure after coronary artery bypass graft surgery. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1017] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
It has been reported that preoperative fractional flow reserve (FFR) is associated with graft patency after coronary artery bypass graft (CABG) and the patency is excellent when a bypass graft is anastomosed on a vessel with positive FFR. However, the association with graft patency has not yet been investigated in its novel counterpart, instantaneous wave-free ratio (iFR), and iFR sometimes contradicts FFR results.
Purpose
The purpose of this study is to assess an impact of preoperative iFR on a graft failure after CABG in patients with coronary arteries showing positive FFR (≤0.80).
Methods
We retrospectively identified patients who had undergone preoperative coronary angiography in conjunction with resting and hyperemic intra-coronary pressure measurements, CABG, and graft evaluation by coronary computed tomography angiography. After excluding vessels with negative FFR (>0.80), vessels were divided into two groups: negative iFR group (iFR >0.89) and positive iFR group (iFR ≤0.89). The rate of graft failure within 1 year after CABG was compared between the two groups.
Results
We analyzed 131 vessels in 89 patients (35 vessels in the negative iFR group and 96 vessels in the positive iFR group). The negative iFR group showed significantly higher iFR (0.92±0.02 vs. 0.74±0.13, P<0.0001) and FFR (0.72±0.06 vs. 0.63±0.09, P<0.0001) than the positive iFR group, although percent diameter stenosis (%DS) was comparable (57±10 vs. 56±9, P=0.47). The graft failure significantly often occurred in the negative iFR group than in the positive iFR group (28.6% vs. 8.3%, P=0.0029). In order to reduce the imbalance in the baseline characteristics except for iFR, 70 vessels were selected by using propensity score matching (n=35 in each group). The propensity score matched vessels also demonstrated significantly higher rate of graft failure in the negative iFR group than in the positive iFR group (28.6% vs. 5.7%, p=0.026) despite much more balanced FFR (0.72±0.06 vs. 0.69±0.07, p=0.02) and %DS (57±10 vs. 57±9, p=1.000).
Conclusions
Even when FFR is positive, the graft failure is likely to occur when a bypass graft is anastomosed on a vessel with negative iFR compared to a vessel with positive iFR.
Acknowledgement/Funding
None
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Affiliation(s)
- T Wada
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - D Higashioka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - K Honda
- Wakayama Medical University, Department of Thoracic and Cardiovascular Surgery, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Nishimura
- Wakayama Medical University, Department of Thoracic and Cardiovascular Surgery, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
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45
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Katayama Y, Tanaka A, Kitabata H, Kashiwagi M, Terada K, Emori H, Shiono Y, Kuroi A, Matsuo Y, Ino Y, Kubo T, Hozumi T, Akasaka T. P3387Cholesterol crystals in superficial plaque layer detected by optical coherence tomography as a new morphological feature for plaque rupture. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0263] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
While plaque rupture (PR) is the leading cause of acute myocardial infarction (AMI), other etiologies are also involved in the onset of AMI. Cholesterol crystals (CCs) are usually present abundantly in atherosclerotic plaques, especially in the culprit site of AMI. However, the relationship between in vivo CCs and PR is unclear. Optical coherence tomography (OCT) is a high-resolution imaging technique that allows for the in vivo identification of various plaque characteristics including PR and CCs.
Purpose
The aim of this study was to investigate prevalence and distribution of CCs between patients with AMI with PR, AMI without PR, and SAP.
Method
This study consisted of 146 patients with coronary artery disease (AMI with PR; n=64, AMI without PR; n=41, and SAP; n=41) who underwent OCT prior to percutaneous coronary intervention. Plaque characteristics in OCT images were assessed according to the consensus document. We classified the distribution of CCs as follows; superficial type CCs were defined by any of the CCs invading the fibrous cap and remaining CCs as deep type CCs.
Result
There was no statistical difference in clinical characteristics among the three groups. The % diameter stenosis was significantly smaller in the SAP group than others (AMI with PR 91±12% vs. AMI without PR 86±13% vs. SAP 65±9%, p<0.001). The prevalence of CCs was significantly higher in the AMI with PR group than others (AMI with PR 78% vs. AMI without PR 41% vs. SAP 39%, p<0.001). The prevalence of superficial type CCs was significantly different among the groups (AMI with PR 72% vs. AMI without PR 24% vs. SAP 7%, p<0.001). Multivariable logistic analysis demonstrated that lipid plaque (OR 84.5, 95% CI [6.30–11332.33], p<0.001) and superficial type CC (OR 9.5, 95% CI [2.61–34.89], p<0.001) were independent predictors of PR.
Conclusion
Plaque with CCs invading the fibrous cap is frequently associated with PR in patients with AMI, suggesting. In vivo CC detection is a new morphological feature for plaque rupture.
Acknowledgement/Funding
This study was supported by a grant from JSPS KAKENHI (17K09557).
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Affiliation(s)
- Y Katayama
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - K Terada
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - H Emori
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
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46
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Hozumi T, Nozawa Y, Takemoto K, Nishi T, Wada T, Maniwa N, Kashiwagi K, Shimamura K, Kuroi A, Matsuo Y, Kitabata H, Ino Y, Kubo T, Tanaka A, Akasaka T. P3365Relationship between early diastolic intra-ventricular pressure gradient shortly after aortic valve closure estimated by vector flow mapping and left ventricular diastolic untwisting rate in humans. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0241] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Early diastolic suction is an important determinant of early diastolic function. Previous studies using color Doppler M-mode and speckle-tracking echocardiography have shown left ventricular (LV) early diastolic LV untwisting rate is directly related to LV intra-ventricular pressure gradient (IVPG) between LV base and apex during early diastole. Recent introduction of vector flow mapping (VFM) using combination of color Doppler and speckle-tracking echocardiography provides noninvasive and feasible assessment of early diastolic IVPG shortly after aortic valve closure including isovolmic relaxation period (ED-IVPG) in humans. However, relationship between VFM–derived ED-IVPG and early diastolic LV untwisting rate has not been well investigated.
Purpose
The purpose of this study was to examine relationship between ED-IVPG estimated by VFM and LV untwisting rate by speckle-tracking echocardiography.
Methods
The study population consists of 66 patients without segmental wall motion abnormality, significant valvular diseases, and atrial fibrillation who underwent echocardiography for evaluation of LV function (age: 60±15 years, LVEF: 49±16%). From the apical long-axis views by color Doppler echocardiography, we analyzed peak ED-IVPG between LV base and apex just after aortic valve closure (figure) using commercially available VFM analysis software (DAS-RS1, Hitachi). We assessed peak early diastolic LV untwisting rate and LV torsion from LV basal and apical short-axis view by speckle-tracking echocardiography. We evaluated correlation between ED-IVPG and LV untwisting rate. We also evaluated correlation between ED-IVPG and peak systolic LV torsion, LV end-diastolic (EDV) and end-systolic volumes (ESV), ejection fraction (EF), early diastolic velocity (E) of LV inflow, average early diastolic velocity (e') of mitral annulus, and average E/e'.
Results
In all the study patients, ED-IVPG was successfully and quickly evaluated. 1) ED-IVPG correlated well with peak LV untwisting rate (r=0.64, p<0.0001). 2) ED-IVPG significantly correlated with LV torsion, LVEDV, LVESV, and LVEF (r=0.47, r=−0.48, r=−0.46, and r=0.48, respectively, p<0.001). 3) There were no significant correlations between ED-IVPG and other indexes including E, average e', and average E/e'. According to receiver operating characteristic analysis, the best cut-off value of ED-IVPG for determining impaired LV untwisting rate (<80 degrees/s) was found at 0.42 mmHg (sensitivity 81%, specificity 76%, and area under the curve 0.86)
ED-IVPG measurement by VFM
Conclusions
The present results showed that noninvasive VFM-derived peak ED-IVPG shortly after aortic valve closure is related to early diastolic peak LV untwisting rate. ED-IVPG easily and quickly estimated by VFM may be used as an additional index for LV diastolic function.
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Affiliation(s)
- T Hozumi
- Wakayama Medical University, Wakayama, Japan
| | - Y Nozawa
- Wakayama Medical University, Wakayama, Japan
| | - K Takemoto
- Wakayama Medical University, Wakayama, Japan
| | - T Nishi
- Wakayama Medical University, Wakayama, Japan
| | - T Wada
- Wakayama Medical University, Wakayama, Japan
| | - N Maniwa
- Wakayama Medical University, Wakayama, Japan
| | - K Kashiwagi
- Wakayama Medical University, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Wakayama, Japan
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47
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Ninomiya T, Nogami N, Kozuki T, Harada D, Kubo T, Ohashi K, Kuyama S, Kudo K, Bessho A, Fujimoto N, Aoe K, Shibayama T, Minami D, Sugimoto K, Ochi N, Takigawa N, Hotta K, Kiura K. Updated analysis of a phase I trial of afatinib (Afa) and bevacizumab (Bev) in chemo-naïve patients (pts) with advanced non-small cell lung cancer (NSCLC) harboring EGFR-mutations: OLCSG1404. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.047] [Citation(s) in RCA: 1] [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] [Indexed: 11/13/2022] Open
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48
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Hozumi T, Morimoto J, Takemoto K, Wada T, Maniwa N, Kashiwagi M, Shimamura K, Shiono Y, Kuroi A, Matsuo Y, Kitabata H, Ino Y, Kubo T, Tanaka A, Akasaka T. P2453Value of pre-operative left atrial minimum volume as a surrogate for post-operative symptoms in patients with aortic stenosis who underwent aortic valve replacement. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0785] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Previous reports have shown that symptoms after aortic valve replacement (AVR) are not uncommon depending on severity of myocardial fibrosis in patients with severe aortic stenosis (AS). Pre-operative minimum left atrial volume (LAVmin) at end-diastole determined by direct exposure of left ventricular end-diastolic pressure may be used as a surrogate for post-operative symptoms in patients with severe AS undergoing AVR.
Purpose
The purpose of this study was to examine the value of pre-operative echocardiographic LAVmin index (LAVImin) to predict post-operative symptomatic status after AVR in patients with severe AS.
Methods
The study population consisted of 219 patients with severe AS who underwent AVR and were followed up for 1000 days after AVR. Pre-operative maximum LAV index (LAVImax), LAVImin, LA emptying fraction (LAEF), LV volume indexes, LV ejection fraction (LVEF) by biplane Simpson's method, aortic valve area index (AVAI), mean aortic valve pressure gradient (mAV-PG), E/A, mean E/e' from LV inflow and mitral annular velocity, and pulmonary artery systolic pressure (PASP) were evaluated by Doppler echocardiography.
Results
After exclusion of 136 patients who met the exclusion criteria (atrial fibrillation, significant coronary artery disease, significant mitral valve diseases, pacemaker rhythm, and inadequate echocardiographic images), the final study population consisted of 75 patients (75±7 years old, 46 female). During a follow-up, 19 patients (25%) complained post-operative symptoms. There were no significant differences in pre-operative serum hemoglobin, creatinine, BNP, chronic obstructive pulmonary disease, hypertension, diabetes, LV volume indexes, LVEF, AVA, mAV-PG between patients with and without post-operative symptoms. There were significant differences in pre-operative LAVImax, LAVImin, and LAEF between patients with and without post-operative symptoms. (60±15 vs 47±15 ml/m2, 45±15 vs 28±1 ml/m2, and 29±12 vs 42±11 ml/m2, respectively). E/A, mean E/e', and PASP in patients with symptoms were significantly greater compared with patients without symptoms (1.0±0.3 vs 0.7±0.2, 25±3 vs 18±2, 44±17 vs 32±9 mmHg, respectively). In the multivariate analysis, pre-operative LAVImin was the independent predictor of the post-operative symptomatic status after AVR (odds ratio: 1.11, 95% confidence interval: 1.04 - 1.18). Receiver operating characteristic analysis revealed that area under the curve (AUC) of LAVImin (cutoff: 30ml/m2) for post-operative symptoms was the largest (0.84) among the other echocardiographic parameters, and significantly larger than that of mean E/e' (0.67, *p<0.01) and LVEF (0.53, **p<0.05) (figure).
Figure 1. ROC analysis
Conclusions
The present results suggest that pre-operative echocardiographic LAVImin may be used as a surrogate for post-operative symptomatic status after AVR in patients with severe AS.
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Affiliation(s)
- T Hozumi
- Wakayama Medical University, Wakayama, Japan
| | - J Morimoto
- Wakayama Medical University, Wakayama, Japan
| | - K Takemoto
- Wakayama Medical University, Wakayama, Japan
| | - T Wada
- Wakayama Medical University, Wakayama, Japan
| | - N Maniwa
- Wakayama Medical University, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Wakayama, Japan
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49
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Terada K, Kubo T, Matsuo Y, Ino Y, Kitabata H, Emori H, Katayama Y, Khalifa A, Shimamura K, Shiono Y, Tanaka A, Hozumi T, Akasaka T. 102Diagnosis of coronary plaque rupture, plaque erosion, and calcified nodule by using near-infrared spectroscopy intravascular ultrasound. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0030] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Objectives
This study sought to investigate the ability of near-infrared spectroscopy intravascular ultrasound (NIRS-IVUS) to differentiate among plaque rupture (PR), plaque erosion (PE), and calcified nodule (CN) in acute myocardial infarction (AMI) using an optical coherence tomography (OCT) diagnosis as a reference standard.
Background
In vivo, precise differentiation among PR, PE and CN is a major challenge for intravascular imaging.
Methods
The study enrolled 156 AMI patients who had a de novo culprit lesion in a native coronary artery. The culprit lesions were assessed by both NIRS-IVUS and OCT.
Results
OCT identified 112 PR, 29 PE, and 15 CN. IVUS-detected plaque ulceration showed a high specificity (100%) to identify OCT-PR although the sensitivity (62%) was intermediate. IVUS-detected convex calcium showed a high sensitivity (93%) and specificity (100%) to identify OCT-CN. In NIRS, the maximum lipid core burden index in 4 mm (maxLCBI4mm) was greatest in OCT-PR (values are median [interquartile range]) (671 [530 to 853]), followed by OCT-CN (355 [303 to 432]) and OCT-PE (283 [89 to 357]) (p<0.001). MaxLCBI4mm of <422 was the best cut-off to discriminate OCT-PE from OCT-PR and OCT-CN. The NIRS-IVUS classification algorithm using plaque ulceration, convex calcium, and maxLCBI4mm <422 showed a sensitivity and specificity of 96% and 95% for identifying OCT-PR, 93% and 95% for OCT-PE, and 93% and 100% for OCT-CN, respectively.
NIRS-IVUS classification algorism
Conclusion
Lipid component assessed by NIRS-IVUS was different among OCT-PR, OCT-PE and OCT-CN. The NIRS-IVUS classification algorism was highly sensitive and specific for differentiating these unstable lesion types in AMI.
Acknowledgement/Funding
None
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Affiliation(s)
- K Terada
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - H Emori
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - Y Katayama
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - A Khalifa
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
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50
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Nishi T, Hozumi T, Takemoto K, Wada T, Maniwa N, Kashiwagi M, Shimamura K, Shiono Y, Kuroi A, Matsuo Y, Kitabata H, Ino Y, Kubo T, Tanaka A, Akasaka T. P4349Simple and rapid estimation of left ventricular longitudinal deformation by tissue-tracking mitral annular displacement in single apical view. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0757] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Noninvasive assessment of left ventricular (LV) deformation using global longitudinal strain (GLS) has prognostic value in patients with and without preserved ejection fraction (EF). Application of speckle-tracking technology to the mitral annulus provides rapid and easy assessment of displacement of septal and lateral mitral annulus and mid-point of mitral annular line in single apical view (TMAD) even in poor echo-image quality. TMAD may be used as a simple index of LV longitudinal deformation in patients with and without preserved EF (Figure).
Purpose
The purpose of this study was to examine whether TMAD can be used as a simple index of LV longitudinal deformation in patients with and without preserved EF.
Methods
The study population consists of 95 patients without segmental wall motion abnormality, significant valvular diseases, and atrial fibrillation in whom both TMAD and GLS measurements were applied by QLAB software (Philips). We estimated GLS from apical 4- and 2-chamber views and apical longitudinal views, and TMAD from apical 4-chamber view. TMAD was automatically and quickly evaluated as the base-to-apex displacement of septal (TMADsep), lateral (TMADlat), and mid-point of annular line (TMADmid) (Figure). The percentage of M-TMAD to LV length from the mid-point of mitral annuls to the apex at end-diastole (%TMADmid) was also calculated. We compared each TMAD values with GLS values by linear regression analysis, and evluated TMAD values by a receiver operating characteristic (ROC) analysis to detect impaired LV longitudinal deformation (|GLS|<12.0%).
Results
TMAD was successfully assessed in 94 of 95 patients (99%) while GLS was measured in 84 of 95 patients (87%, p=0.0082 vs TMAD). There were good correlations between each TMAD index and |GLS| (TMADsep:r=0.77, TMADlat:r=0.81, TMADmid:r=0.82, %TMADmid:r=0.87). According to ROC curve, the best cut-off values for TMADsep, TMADlat, TMADmid, and %TMADmid in determining LV longitudinal deformation were 6.8mm, 8.0mm, 7.8mm, and 9.5% respectively (Table).
Conclusions
The present results suggest that rapid and easy assessment of TMAD in single apical view may be used as a simple index of LV longitudinal deformation.
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Affiliation(s)
- T Nishi
- Wakayama Medical University, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Wakayama, Japan
| | - K Takemoto
- Wakayama Medical University, Wakayama, Japan
| | - T Wada
- Wakayama Medical University, Wakayama, Japan
| | - N Maniwa
- Wakayama Medical University, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Wakayama, Japan
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