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Toader AE, Fukuda M, Vazquez AL. Evaluation of calibrated and uncalibrated optical imaging approaches for relative cerebral oxygen metabolism measurements in awake mice. Physiol Meas 2024; 45:045007. [PMID: 38569522 DOI: 10.1088/1361-6579/ad3a2d] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 04/03/2024] [Indexed: 04/05/2024]
Abstract
Objective. The continuous delivery of oxygen is critical to sustain brain function, and therefore, measuring brain oxygen consumption can provide vital physiological insight. In this work, we examine the impact of calibration and cerebral blood flow (CBF) measurements on the computation of the relative changes in the cerebral metabolic rate of oxygen consumption (rCMRO2) from hemoglobin-sensitive intrinsic optical imaging data. Using these data, we calculate rCMRO2, and calibrate the model using an isometabolic stimulus.Approach. We used awake head-fixed rodents to obtain hemoglobin-sensitive optical imaging data to test different calibrated and uncalibrated rCMRO2models. Hypercapnia was used for calibration and whisker stimulation was used to test the impact of calibration.Main results. We found that typical uncalibrated models can provide reasonable estimates of rCMRO2with differences as small as 7%-9% compared to their calibrated models. However, calibrated models showed lower variability and less dependence on baseline hemoglobin concentrations. Lastly, we found that supplying the model with measurements of CBF significantly reduced error and variability in rCMRO2change calculations.Significance. The effect of calibration on rCMRO2calculations remains understudied, and we systematically evaluated different rCMRO2calculation scenarios that consider including different measurement combinations. This study provides a quantitative comparison of these scenarios to evaluate trade-offs that can be vital to the design of blood oxygenation sensitive imaging experiments for rCMRO2calculation.
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Affiliation(s)
- A E Toader
- Departments of Radiology, University of Pittsburgh, Pittsburgh PA 15217, United States of America
| | - M Fukuda
- Departments of Radiology, University of Pittsburgh, Pittsburgh PA 15217, United States of America
| | - A L Vazquez
- Departments of Radiology, University of Pittsburgh, Pittsburgh PA 15217, United States of America
- Bioengineering, University of Pittsburgh, Pittsburgh PA 15217, United States of America
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Goto Y, Fukuda M, Kanemaki Y. Investigation of distress during diffusion-weighted whole-body magnetic resonance imaging among women with breast cancer and the effectiveness of a new technology in alleviating patient's anxiety by approaching the human senses. Radiography (Lond) 2024; 30:634-640. [PMID: 38335690 DOI: 10.1016/j.radi.2024.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024]
Abstract
INTRODUCTION Breast cancer is a common malignant tumor among women, and the effectiveness of diagnosing its metastasis and recurrence has been demonstrated using diffusion-weighted whole-body imaging with background body signal suppression (DWIBS). However, DWIBS causes distress to patients due to the unique circumstances of magnetic resonance imaging (MRI). This study aimed to investigate the various distress factors caused by DWIBS among women with breast cancer and assess the effectiveness of a new MRI system designed with an environment incorporating relaxing technology. METHODS From May to September 2022, we conducted a questionnaire survey regarding DWIBS-related distress among women with breast cancer. The questionnaire was administered to participants who underwent DWIBS on a conventional MRI system (19 women) and on a new system (20 women) equipped with relaxing technology equipped features, including projection images, illumination, and sound. Participants rated the degree of various stress factors on a face-scale rating scale (0-10). The scores of both systems were compared using the Mann-Whitney U test. RESULTS In the conventional system, women experienced distress due to MRI-specific situations, such as immobility in a confined space, noise, feeling trapped, and concerns about not moving. These results did not show a specific tendency among women with breast cancer undergoing DWIBS. For almost all distress parameters, the new system had significantly lower distress scores than the conventional system (p > 0.05). CONCLUSIONS A comfortable environment using new and relaxing technology is effective in alleviating patient's anxiety by approaching the human senses. IMPLICATIONS FOR PRACTICE Reducing distress caused by DWIBS among women with breast cancer could provide a comfortable examination environment, potentially assisting them during longer treatment periods.
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Affiliation(s)
- Y Goto
- St. Marianna University Breast & Imaging Center, 6-7-2 Manpukuji Asao-ku, Kawasaki, Kanagawa, 215-8520, Japan.
| | - M Fukuda
- St. Marianna University Breast & Imaging Center, 6-7-2 Manpukuji Asao-ku, Kawasaki, Kanagawa, 215-8520, Japan.
| | - Y Kanemaki
- St. Marianna University Breast & Imaging Center, 6-7-2 Manpukuji Asao-ku, Kawasaki, Kanagawa, 215-8520, Japan.
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Hayashi JI, Ono K, Iwamura Y, Sasaki Y, Ohno T, Goto R, Nishida E, Yamamoto G, Kikuchi T, Higuchi N, Mitani A, Fukuda M. Suppression of subgingival bacteria by antimicrobial photodynamic therapy using transgingival irradiation: A randomized clinical trial. J Periodontol 2023. [PMID: 37910482 DOI: 10.1002/jper.23-0328] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 10/01/2023] [Accepted: 10/06/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND Antimicrobial photodynamic therapy (aPDT) is an effective method for eradicating bacteria in periodontal therapy. Standard aPDT requires the insertion of a laser tip into a periodontal pocket, in which the direction of irradiation is limited. Therefore, we devised an aPDT method that uses a transgingival near-infrared wavelength and indocyanine green-encapsulated and chitosan-coated nanoparticles as a photosensitizer. METHODS Forty patients undergoing supportive periodontal therapy, who had a single root tooth with a pocket of 5 mm or deeper, were used as subjects. In the test group, aPDT was performed by laser irradiation from outside the gingiva using photosensitizer nanoparticles. In the control group, pseudo aPDT without photosensitizer was performed by transgingival irradiation. Subgingival plaque was sampled from inside the pocket before, immediately after, and 1 week after treatment, and evaluated by colony counting and real-time polymerase chain reaction. RESULTS There were no significant differences in age, sex, periodontal pocket depth, and bleeding on probing between the test and control groups. Compared with the colony count before treatment, the count in the test group was significantly reduced immediately after treatment. The number of patients with colony reduction to ≤50% and ≤10% was significantly higher in the test group than in the control group. None of the participants reported pain, although one participant reported discomfort. CONCLUSION As a bacterial control method for residual pockets in patients undergoing supportive periodontal therapy, transgingival aPDT is a promising treatment strategy that is not generally accompanied by pain or discomfort.
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Affiliation(s)
- Jun-Ichiro Hayashi
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Kohta Ono
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Yuki Iwamura
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Yasuyuki Sasaki
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Tasuku Ohno
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Ryoma Goto
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Eisaku Nishida
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Genta Yamamoto
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Takeshi Kikuchi
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Naoya Higuchi
- Department of Endodontics, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Akio Mitani
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Mitsuo Fukuda
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
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Takeuchi S, Miyauchi M, Kadota T, Fukuda M, Nishiyama K. Cerebral infarction after anaphylactic shock due to cold-induced urticaria. QJM 2023; 116:461-462. [PMID: 36786405 PMCID: PMC10250077 DOI: 10.1093/qjmed/hcad022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Indexed: 02/15/2023] Open
Affiliation(s)
- S Takeuchi
- From the Department of Disaster and Emergency Medicine, Kochi Medical School, Nankoku-city, Kochi, Japan
| | - M Miyauchi
- From the Department of Disaster and Emergency Medicine, Kochi Medical School, Nankoku-city, Kochi, Japan
| | - T Kadota
- From the Department of Disaster and Emergency Medicine, Kochi Medical School, Nankoku-city, Kochi, Japan
| | - M Fukuda
- Department of Neurosurgery, Kochi Health Sciences Center, Kochi-city, Kochi, Japan
| | - K Nishiyama
- From the Department of Disaster and Emergency Medicine, Kochi Medical School, Nankoku-city, Kochi, Japan
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Takaoka H, Otsuka Y, Fukuda M, Low VL, Ya'cob Z. Morphological redescription of Simulium takahasii (Rubtsov), the first species of the subgenus Wilhelmia Enderlein (Diptera: Simuliidae) recognized in East Asia. Trop Biomed 2023; 40:266-272. [PMID: 37650416 DOI: 10.47665/tb.40.2.020] [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] [Indexed: 09/01/2023]
Abstract
Simulium takahasii (Rubtsov), which was originally described from Japan, and recorded from Korea and China, is the first among the 19 species of the subgenus Wilhelmia Enderlein recorded from East Asia. It is striking in mating, blood-feeding and ovipositing in captivity and in experimentally transmitting Dirofilaria immitis (Leidy) and Brugia pahangi (Buckley & Edeson), and it is a severe biter of cattle and horses, rarely of humans. Nevertheless, updated information about its morphological characteristics was lacking, making comparisons with related species described from China difficult, since species of the subgenus Wilhelmia are almost indistinguishable from one another, in particular, in their female terminalia, male genitalia and most of larval features. In this study, as many morphological characteristics as possible of S. takahasii based on specimens from Japan are redescribed. New information about many features of this species including the length of the female sensory vesicle against the third palpal segment, number of male upper-eye (large) facets, arrangement of the eight pupal gill filaments, presence or absence of tiny dark setae on the dorsum of the larval abdomen and the number of rows and hooklets of the larval posterior circlet will be useful in evaluating the species status of several Wilhelmia species in China including the species regarded as S. takahasii.
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Affiliation(s)
- H Takaoka
- Higher Institution of Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Y Otsuka
- International Center for Island Studies, Kagoshima University, Korimoto 1-21-24, Kagoshima, 890-8580 Japan
| | - M Fukuda
- Institute for Research Management, Oita University, Idaigaoka 1-1, Hasama, Yufu City, Oita, 879-5593, Japan
| | - V L Low
- Higher Institution of Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Z Ya'cob
- Higher Institution of Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
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Takaoka H, Otsuka Y, Fukuda M, Low VL, Ya'cob Z. Morphological and genetic analyses of Simulium (Gomphostilbia) okinawense Takaoka and S. (G.) tokarense Takaoka (Diptera: Simuliidae) from the Nansei Islands, Japan: redescription and transfer from the S. ceylonicum species-group to the S. asakoae species-group. Trop Biomed 2023; 40:88-100. [PMID: 37356008 DOI: 10.47665/tb.40.1.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Simulium (Gomphostilbia) okinawense Takaoka and S. (G.) tokarense Takaoka, both from the Nansei Islands, Japan, were morphologically reexamined and genetically analysed by using the COI gene sequences. The female, male, pupa and mature larva of the two species are redescribed. Morphological reexamination shows that both species are more similar to species in the S. asakoae species-group than to those in the S. ceylonicum species-group, by having a medium-long female sensory vesicle, yellow tuft hairs (S. (G.) okinawense) or yellow tuft hairs mixed with a few to several dark hairs (S. (G.) tokarense) at the base of the radial vein in the female and male, and medium-long larval postgenal cleft. However, the body of the male ventral plate (viewed ventrally) is parallel-sided (S. (G.) okinawense) or parallelsided or slightly narrowed (S. (G.) tokarense) and not emarginated basally, differing from those of most species in the S. asakoae species-group. Our genetic analysis shows that S. (G.) tokarense is in the S. asakoae species-group, and S. (G.) okinawense formed a separate sister clade with other members of the S. asakoae species-group with high bootstrap support. From the results of morphological and genetic analysis combined, S. (G.) okinawense and S. (G.) tokarense are transferred from the S. ceylonicum species-group to the S. asakoae species-group.
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Affiliation(s)
- H Takaoka
- Higher Institution of Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Y Otsuka
- International Center for Island Studies, Kagoshima University, Korimoto 1-21-24, Kagoshima, 890-8580 Japan
| | - M Fukuda
- Institute for Research Management, Oita University, Idaigaoka 1-1, Hasama, Yufu City, Oita, 879-5593, Japan
| | - V L Low
- Higher Institution of Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Z Ya'cob
- Higher Institution of Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
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Ogata R, Takemoto S, Fukuda M, Senju H, Nakatomi K, Sugasaki N, Tomono H, Suyama T, Shimada M, Akagi K, Hayashi F, Dotsu Y, Taniguchi H, Gyotoku H, Yamaguchi H, Nagashima S, Soda H, Kinoshita A, Mukae H. 316P Phase II study of ramucirumab and docetaxel for platinum-resistance NSCLC patients with malignant pleural effusion: Analysis of pleural effusion control rate. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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Yamaguchi H, Wakuda K, Fukuda M, Kenmotsu H, Ito K, Tsuchiya-Kawano Y, Tanaka K, Harada T, Nakatani Y, Miura S, Yokoyama T, Nakamura T, Izumi M, Nakamura A, Ikeda S, Takayama K, Yoshimura K, Nakagawa K, Yamamoto N, Sugio K. 990P Osimertinib for RT-naïve CNS metastasis of EGFR mutation-positive NSCLC: Phase II OCEAN study (LOGIK 1603/WJOG 9116L), part of the first-line cohort. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1117] [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] Open
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Takemoto S, Fukuda M, Senju H, Nakatomi K, Sugasaki N, Ogata R, Tomono H, Suyama T, Shimada M, Akagi K, Hayashi F, Gyotoku H, Yamaguchi H, Nagashima S, Soda H, Kinoshita A, Mukae H. EP08.04-005 Phase II Study of Ramucirumab and Docetaxel for NSCLC Patients with Malignant Pleural Effusion. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.870] [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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Oka M, Kurose K, Sakaeda K, Fukuda M, Sakai Y, Atarashi Y, Shimizu K, Masuda T, Nakatomi K, Kawase S, Suetsugu T, Mizuno K, Takemoto S, Yamaguchi H, Inoue H, Hattori N, Nakata M, Mukae H, Oga T. EP08.01-064 Serum NY-ESO-1 and XAGE1 Antibodies Predict and Monitor Clinical Responses to Immune Checkpoint Therapy for NSCLC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.636] [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: 11/28/2022]
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Hatakeyama S, Tabata R, Fujimori D, Fukuda M, Shinozaki T, Iwamura H, Okamoto T, Yoneyama T, Sato S, Ohyama C. Outcomes comparison between the robot-assisted radical prostatectomy with extended pelvic lymph node dissection and neoadjuvant chemohormonal therapy without extended pelvic lymph node dissection in patients with organ confined high-risk prostate cancer. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00909-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Takaoka H, Low VL, Huang YT, Fukuda M, Ya'cob Z. Two new black fly species of the Simulium ( Simulium) rufibasis subgroup (Diptera: Simuliidae) from Taiwan. Trop Biomed 2021; 38:403-412. [PMID: 34608114 DOI: 10.47665/tb.38.3.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Simulium ( Simulium) rufibasis Brunetti originally described from India was once considered a geographic generalist widely distributed in the Oriental Region. In this study, the species previously regarded as S. (S.) rufibasis in Taiwan was morphologically re-evaluated and found to be distinguished in the male and pupa from true S. (S.) rufibasis from India. This new species is described as S. ( S.) hehuanense sp. nov. based on a female, a male and their pupal exuviae in Taiwan. This new species is placed in the S. rufibasis subgroup of the S. tuberosum species-group, and is similar to S. (S.) yamatoense Takaoka, Adler & Fukuda from Japan and Korea, but it is barely distinguished by the slenderer forebasitarsi of the female and male. Another new, related species, S. (S.) xiulinense sp. nov., is described based on a male and its pupal exuviae. This new species is distinguished from S. (S.) hehuanense sp. nov. by the number of male upper-eye (large) facets in 20 or 21 vertical columns and 22 horizontal rows (19 vertical columns and 19 horizontal rows in the latter species), and presence of a pair of dorsolateral shiny spots on male abdominal segment 5 (absence in the latter species). Both new species inhabit streams at high elevations (ca, 2,600 m). They differ from S. (S.) sp. (probably S. (S.) arisanum Shiraki) from Taiwan, of the same subgroup, which breeds in streams at low elevations (433-685 m), by the pupal head and thorax covered with tubercles (bare in the latter species).
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Affiliation(s)
- H Takaoka
- Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - V L Low
- Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Y T Huang
- R & D Center Composites Department, Nan Ya Plastics Corporation, Nan Lin Road Tai Shan District, New Tapei City 243, Taiwan
| | - M Fukuda
- Insitute for Research Promotion, Oita University, Idaigaoka 1-1, Hasama, Yufu City, Oita, 879-5593, Japan
| | - Z Ya'cob
- Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
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Higuchi N, Hayashi JI, Fujita M, Iwamura Y, Sasaki Y, Goto R, Ohno T, Nishida E, Yamamoto G, Kikuchi T, Mitani A, Fukuda M. Photodynamic Inactivation of an Endodontic Bacteria Using Diode Laser and Indocyanine Green-Loaded Nanosphere. Int J Mol Sci 2021; 22:ijms22168384. [PMID: 34445089 PMCID: PMC8395049 DOI: 10.3390/ijms22168384] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/22/2021] [Accepted: 07/30/2021] [Indexed: 11/30/2022] Open
Abstract
Apical periodontitis, an inflammatory lesion causing bone resorption around the apex of teeth, is treated by eradicating infectious bacteria from the root canal. However, it has a high recurrence rate and often requires retreatment. We investigated the bactericidal effect of antimicrobial photodynamic therapy (aPDT)/photodynamic antimicrobial chemotherapy (PACT) using indocyanine green (ICG)-loaded nanospheres coated with chitosan and a diode laser on a biofilm of Enterococcus faecalis, a pathogen of refractory apical periodontitis. Biofilm of E. faecalis was cultured in a porcine infected root canal model. ICG solution was injected into the root canal, which was then irradiated with a laser (810 nm wavelength) from outside the root canal. The bactericidal effect was evaluated by colony counts and scanning electron microscopy. The result of the colony counts showed a maximum 1.89 log reduction after irradiation at 2.1 W for 5 min. The temperature rise during aPDT/PACT was confirmed to be within a safe range. Furthermore, the light energy transmittance through the root was at a peak approximately 1 min after the start of irradiation, indicating that most of the ICG in the root canal was consumed. This study shows that aPDT/PACT can suppress E. faecalis in infected root canals with high efficiency.
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Affiliation(s)
- Naoya Higuchi
- Department of Endodontics, School of Dentistry, Aichi Gakuin University, Nagoya 464-8651, Aichi, Japan; (N.H.); (M.F.)
| | - Jun-ichiro Hayashi
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya 464-8651, Aichi, Japan; (Y.I.); (Y.S.); (R.G.); (T.O.); (E.N.); (G.Y.); (T.K.); (A.M.); (M.F.)
- Correspondence:
| | - Masanori Fujita
- Department of Endodontics, School of Dentistry, Aichi Gakuin University, Nagoya 464-8651, Aichi, Japan; (N.H.); (M.F.)
| | - Yuki Iwamura
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya 464-8651, Aichi, Japan; (Y.I.); (Y.S.); (R.G.); (T.O.); (E.N.); (G.Y.); (T.K.); (A.M.); (M.F.)
| | - Yasuyuki Sasaki
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya 464-8651, Aichi, Japan; (Y.I.); (Y.S.); (R.G.); (T.O.); (E.N.); (G.Y.); (T.K.); (A.M.); (M.F.)
| | - Ryoma Goto
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya 464-8651, Aichi, Japan; (Y.I.); (Y.S.); (R.G.); (T.O.); (E.N.); (G.Y.); (T.K.); (A.M.); (M.F.)
| | - Tasuku Ohno
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya 464-8651, Aichi, Japan; (Y.I.); (Y.S.); (R.G.); (T.O.); (E.N.); (G.Y.); (T.K.); (A.M.); (M.F.)
| | - Eisaku Nishida
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya 464-8651, Aichi, Japan; (Y.I.); (Y.S.); (R.G.); (T.O.); (E.N.); (G.Y.); (T.K.); (A.M.); (M.F.)
| | - Genta Yamamoto
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya 464-8651, Aichi, Japan; (Y.I.); (Y.S.); (R.G.); (T.O.); (E.N.); (G.Y.); (T.K.); (A.M.); (M.F.)
| | - Takeshi Kikuchi
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya 464-8651, Aichi, Japan; (Y.I.); (Y.S.); (R.G.); (T.O.); (E.N.); (G.Y.); (T.K.); (A.M.); (M.F.)
| | - Akio Mitani
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya 464-8651, Aichi, Japan; (Y.I.); (Y.S.); (R.G.); (T.O.); (E.N.); (G.Y.); (T.K.); (A.M.); (M.F.)
| | - Mitsuo Fukuda
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya 464-8651, Aichi, Japan; (Y.I.); (Y.S.); (R.G.); (T.O.); (E.N.); (G.Y.); (T.K.); (A.M.); (M.F.)
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Fukuda M, Seki Y, Ezato K, Yokoyama K, Nishi H, Suzuki S, Hirai T. Performance evaluation of tungsten for ITER divertor toward mass production. Fusion Engineering and Design 2021. [DOI: 10.1016/j.fusengdes.2021.112283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Takaoka H, Fukuda M, Otsuka Y, Iwasa M. A male black fly of Simulium (Simulium) iwatense (Shiraki) (Diptera: Simuliidae) with genitalia-like appendages on abdominal segment 8. Trop Biomed 2021; 38:68-71. [PMID: 33973575 DOI: 10.47665/tb.38.2.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A rare non-sex mosaic abnormality represented by genitalia-like appendages on the ventral surface of abdominal segment 8 of a male black fly collected in Hokkaido, Japan, is reported. The appendages consist of a pair of style-like projections each arising from a coxite-like base, inverted-Y shaped ventral plate-like structure, and isolated round structure. This male was morphologically and molecularly identified as an abnormal form of S. (S.) iwatense (Shiraki), the only species in the Simulium (Simulium) ornatum species-group in Japan, although certain morphological characteristics of this male including the reduced number of uppereye (large) facets and elongate cerci are different from those of S. (S.) iwatense.
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Affiliation(s)
- H Takaoka
- Tropical Infectious Diseases Research and Education Centre (TIDREC), Higher Institution Centre of Excellence (HICoE), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - M Fukuda
- Institute for Research Promotion, Oita University, Idaigaoka 1-1, Hasama, Yufu, Oita 879-5593, Japan
| | - Y Otsuka
- Research Center for the Pacific Islands, Kagoshima University, Korimoto 1-21-24, Kagoshima, Kagoshima 890-8580, Japan
| | - M Iwasa
- Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
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Fukano Y, Soga M, Fukuda M, Takahashi Y, Koyama M, Arakawa Y, Miyano N, Akiba Y, Horiguchi M. Debut of an endangered bird in zoos raises public interest, awareness and conservation knowledge of the species. Anim Conserv 2021. [DOI: 10.1111/acv.12693] [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: 11/29/2022]
Affiliation(s)
- Y. Fukano
- Graduate School of Agricultural and Life Sciences The University of Tokyo Tokyo Japan
| | - M. Soga
- Graduate School of Agricultural and Life Sciences The University of Tokyo Tokyo Japan
| | - M. Fukuda
- Ministry of the Environment Government of Japan Tokyo Japan
| | - Y. Takahashi
- Tokyo Zoological Park Society Ueno Zoological Gardens Tokyo Japan
| | | | | | | | - Y. Akiba
- Toyama Municipal Family Park Zoo Toyama Japan
- Japanese Association of Zoos and Aquariums Tokyo Japan
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17
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Takemoto S, Suyama T, Honda N, Umeyama Y, Dostu Y, Hiroshi G, Yamaguchi H, Fukuda M, Mukae H. 177P Efficacy of S-1 after pemetrexed in patients with non-small cell lung cancer: A retrospective multi-institutional analysis. J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)02019-0] [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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18
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Nomura Y, Morozumi T, Saito A, Yoshimura A, Kakuta E, Suzuki F, Nishimura F, Takai H, Kobayashi H, Noguchi K, Takahashi K, Tabeta K, Umeda M, Minabe M, Fukuda M, Sugano N, Hanada N, Yoshinari N, Sekino S, Takashiba S, Sato S, Nakamura T, Sugaya T, Nakayama Y, Ogata Y, Numabe Y, Nakagawa T. Prospective Longitudinal Changes in the Periodontal Inflamed Surface Area Following Active Periodontal Treatment for Chronic Periodontitis. J Clin Med 2021; 10:jcm10061165. [PMID: 33802109 PMCID: PMC7998532 DOI: 10.3390/jcm10061165] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 02/27/2021] [Accepted: 03/08/2021] [Indexed: 12/13/2022] Open
Abstract
Periodontal disease is a chronic inflammatory disease of the periodontal tissue. The periodontal inflamed surface area (PISA) is a proposed index for quantifying the inflammatory burden resulting from periodontitis lesions. This study aimed to investigate longitudinal changes in the periodontal status as evaluated by the PISA following the active periodontal treatment. To elucidate the prognostic factors of PISA, mixed-effect modeling was performed for clinical parameters, tooth-type, and levels of periodontal pathogens as independent variables. One-hundred-twenty-five patients with chronic periodontitis who completed the active periodontal treatment were followed-up for 24 months, with evaluations conducted at 6-month intervals. Five-times repeated measures of mean PISA values were 130+/−173, 161+/−276, 184+/−320, 175+/−417, and 209+/−469 mm2. Changes in clinical parameters and salivary and subgingival periodontal pathogens were analyzed by mixed-effect modeling. Plaque index, clinical attachment level, and salivary levels of Porphyromonas gingivalis were associated with changes in PISA at the patient- and tooth-level. Subgingival levels of P. gingivalis and Prevotella intermedia were associated with changes in PISA at the sample site. For most patients, changes in PISA were within 10% of baseline during the 24-month follow-up. However, an increase in the number of bleeding sites in a tooth with a deep periodontal pocket increased the PISA value exponentially.
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Affiliation(s)
- Yoshiaki Nomura
- Department of Translational Research, Tsurumi University School of Dental Medicine, Yokohama 230-8501, Japan; (Y.N.); (N.H.)
| | - Toshiya Morozumi
- Division of Periodontology, Department of Oral Interdisciplinary Medicine, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka 238-8580, Japan;
- Correspondence: ; Tel.: +81-46-822-8855
| | - Atsushi Saito
- Department of Periodontology, Tokyo Dental College, Tokyo 101-0061, Japan;
| | - Atsutoshi Yoshimura
- Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8588, Japan;
| | - Erika Kakuta
- Department of Oral Microbiology, Tsurumi University School of Dental Medicine, Yokohama 230-8501, Japan;
| | - Fumihiko Suzuki
- Division of Dental Anesthesiology, Department of Oral Surgery, Ohu University School of Dentistry, Koriyama 963-8611, Japan;
| | - Fusanori Nishimura
- Section of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan;
| | - Hideki Takai
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Matsudo 271-8587, Japan; (H.T.); (Y.N.); (Y.O.)
| | - Hiroaki Kobayashi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, Japan;
| | - Kazuyuki Noguchi
- Department of Periodontology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan; (K.N.); (T.N.)
| | - Keiso Takahashi
- Division of Periodontics, Department of Conservative Dentistry, Ohu University School of Dentistry, Koriyama 963-8611, Japan;
| | - Koichi Tabeta
- Division of Periodontology, Department of Oral Biological Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8514, Japan;
| | - Makoto Umeda
- Department of Periodontology, Osaka Dental University, Hirakata 573-1121, Japan;
| | - Masato Minabe
- Division of Periodontology, Department of Oral Interdisciplinary Medicine, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka 238-8580, Japan;
| | - Mitsuo Fukuda
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya 464-8650, Japan;
| | - Naoyuki Sugano
- Department of Periodontology, Nihon University School of Dentistry, Tokyo 101-8310, Japan;
| | - Nobuhiro Hanada
- Department of Translational Research, Tsurumi University School of Dental Medicine, Yokohama 230-8501, Japan; (Y.N.); (N.H.)
| | - Nobuo Yoshinari
- Department of Periodontology, School of Dentistry, Matsumoto Dental University, Shiojiri 399-0781, Japan;
| | - Satoshi Sekino
- Department of Periodontology, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo 102-8159, Japan; (S.S.); (Y.N.)
| | - Shogo Takashiba
- Department of Pathophysiology-Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8525, Japan;
| | - Soh Sato
- Department of Periodontology, School of life Dentistry at Niigata, The Nippon Dental University, Niigata 951-8580, Japan;
| | - Toshiaki Nakamura
- Department of Periodontology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan; (K.N.); (T.N.)
| | - Tsutomu Sugaya
- Division of Periodontology and Endodontology, Department of Oral Health Science, Hokkaido University Graduate School of Dental Medicine, Sapporo 060-8586, Japan;
| | - Yohei Nakayama
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Matsudo 271-8587, Japan; (H.T.); (Y.N.); (Y.O.)
| | - Yorimasa Ogata
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Matsudo 271-8587, Japan; (H.T.); (Y.N.); (Y.O.)
| | - Yukihiro Numabe
- Department of Periodontology, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo 102-8159, Japan; (S.S.); (Y.N.)
| | - Taneaki Nakagawa
- Department of Dentistry and Oral Surgery, School of Medicine, Keio University, Tokyo 160-8582, Japan;
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Omuro T, Yoshiga Y, Fukuda M, Kato T, Fujii S, Ueyama T, Shimizu A, Yano M. The impact of an empiric superior vena cava isolation added to pulmonary vein isolation for non-paroxysmal atrial fibrillation associated with left atrial low voltage areas. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0578] [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
Introduction
Left atrial low-voltage areas (LVAs) are associated with recurrence after radiofrequency catheter ablation of atrial fibrillation (AF). However, the impact of LVAs on recurrence after an empiric pulmonary vein isolation (PVI) plus superior vena cava isolation (SVCI) strategy for non-Paroxysmal AF (PAF) patients remains unclear.
Purpose
We evaluated the impact of LVAs on the recurrence of atrial tachyarrhythmias (ATs)/AF in patients who underwent an empiric SVCI added to the PVI for non-PAF.
Methods
We enrolled 153 consecutive patients with non-PAF who underwent a PVI alone (PVI group; n=51) or empiric PVI plus SVCI (PVI+SVCI group; n=102). Left atrial voltage maps were constructed during sinus rhythm to identify the LVAs (<0.5 mV). No patients underwent a substrate modification of the LVAs. We divided the patients into two groups based on the LVAs (with or without an LVA >5% of the left atrial surface area) and investigated the ATs/AF free survival rate after the initial and multiple procedures.
Results
LVAs were identified in 65% and 73% of the PVI and PVI + SVCI groups, respectively (P=0.319). In the PVI group, the 18-month ATs/AF-free survival was 61% of the patients without LVAs and 27% of patients with LVAs after the initial session (P=0.018) (Figure 1-A). Seventy-two percent of the patients without LVAs and 46% of those with LVAs were free from ATs/AF after multiple sessions (P=0.083) (Figure 1-B). In the PVI+SVCI group, 50% of the patients with LVAs and 61% of those without LVAs had no recurrence after the initial session (P=0.374) (Figure 2-A). Moreover, there was no significant difference in the 18-month ATs/AF-free survival between the patients with and without LVAs after multiple sessions (73% vs. 79%; P=0.520) (Figure 2-B).
Conclusion
A PVI alone strategy for non-PAF patients with LVAs had limited efficacy for the outcomes, even with multiple procedures. However, an SVCI may have the potential to compensate for an impaired outcome in patients with LVAs.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Omuro
- Yamaguchi University Graduate School of Medicine, Department of Clinical Laboratory Sciences, Ube, Japan
| | - Y Yoshiga
- Yamaguchi University Graduate School of Medicine, Department of Medicine and Clinical Science, Ube, Japan
| | - M Fukuda
- Yamaguchi University Graduate School of Medicine, Department of Medicine and Clinical Science, Ube, Japan
| | - T Kato
- Yamaguchi University Graduate School of Medicine, Department of Medicine and Clinical Science, Ube, Japan
| | - S Fujii
- Yamaguchi University Graduate School of Medicine, Department of Medicine and Clinical Science, Ube, Japan
| | - T Ueyama
- Yamaguchi University Graduate School of Medicine, Department of Medicine and Clinical Science, Ube, Japan
| | - A Shimizu
- Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - M Yano
- Yamaguchi University Graduate School of Medicine, Department of Medicine and Clinical Science, Ube, Japan
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20
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Muranishi H, Zushi R, Yagi Y, Kawasaki S, Tanaka S, Fukuda M, Kobata H. Impact of door-to-deployment time of venoarterial extracorporeal membrane oxygenation for out-of-hospital refractory cardiac arrest patients secondary to cardiovascular causes. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1828] [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
Door-to-balloon time in patients with ST-elevation myocardial infarction is reported to be an independent predictor of the prognostic implication. However, the effect of door-to-deployment time (DTDT) of venoarterial extracorporeal membrane oxygenation (VA-ECMO) on patients with out-of-hospital cardiac arrest (OHCA) is unclear.
Purpose
This single-center, retrospective, observational study aimed to evaluate the effect of DTDT of VA-ECMO for mortality or neurological outcome of extracorporeal cardiopulmonary resuscitation (ECPR) in patients with cardiogenic OHCA.
Method
This single-center, retrospective, observational study was conducted from January 2008 to April 2019. The primary endpoint was 1-month overall survival measured after ECMO initiation. Moreover, the secondary endpoint was 1-month survival with favorable neurological functions defined as having a cerebral performance category score of 1 or 2.
Result
A total of 3082 patients with OHCA were brought to our institution and 84 received ECPR. Of these, 51 consecutive adult patients with cardiogenic OHCA without sustained return of spontaneous circulation during transport were included in this analysis. Approximately 18 patients (18/51, 35.3%) survived after 1 month and were discharged. Among the survivors, 15 (15/18, 83.3%) were discharged with a favorable neurological outcome. The baseline characteristics between the survivors and non-survivors were not significantly different, except for the initial shockable rhythm [18/18 (100%) versus 28/33 (84.9%), P=0.03]. There were no significant differences between the median time from collapse to hospital arrival [31.0 min (IQR 25.0–31.0) versus 29.0 min (IQR 25.0–39.5), P=0.53] and from call to hospital arrival [28.0 min (IQR 22.0–32.5) versus 27.0 min (IQR 23.3–34.5), P=0.56]. The median DTDT of VA-ECMO was significantly shorter in survivors [13.0 min (IQR 11.5–18.3) versus 21.0 minutes (IQR 15.5–32.0), P=0.01]. The Kaplan–Meier survival analysis showed that the group with a DTDT ≤20 min had a significantly higher 1-month overall survival rate (P<0.01) and survival rate with a favorable neurological outcome (P=0.01) than that with a DTDT >20 minutes. Using the Cox proportional hazards analysis, DTDT ≤20 minutes and bystander-witnessed significantly affected the overall survival rate at 1 month [adjusted hazard ratio (HR), 0.44; 95% confidence interval (CI), 0.20–0.95; P=0.03 and adjusted HR, 0.31; 95% CI, 0.13–0.74; P<0.01, respectively]. Regarding survival rate with a favorable neurological outcome, the result was relatively similar [adjusted HR, 0.46; 95% CI, 0.22–0.96; P=0.04 and adjusted HR, 0.37; 95% CI, 0.16–0.85; P=0.02, respectively].
Conclusion
This study revealed that the DTDT of VA-ECMO is significantly associated with the 1-month mortality and neurological prognosis of patients with cardiogenic OHCA. However, further studies will be required to confirm these findings.
Kaplan-Meier survival curve
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- H Muranishi
- Osaka Mishima Emergency Critical Care Center, Takatsuki, Japan
| | - R Zushi
- Osaka Mishima Emergency Critical Care Center, Takatsuki, Japan
| | - Y Yagi
- Osaka Mishima Emergency Critical Care Center, Takatsuki, Japan
| | - S Kawasaki
- Osaka Mishima Emergency Critical Care Center, Takatsuki, Japan
| | - S Tanaka
- Osaka Mishima Emergency Critical Care Center, Takatsuki, Japan
| | - M Fukuda
- Osaka Mishima Emergency Critical Care Center, Takatsuki, Japan
| | - H Kobata
- Osaka Mishima Emergency Critical Care Center, Takatsuki, Japan
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21
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Tokunaga S, Moreau P, Signoret J, Imbeaux F, Tsitrone E, Loarer T, Salmon T, Hutter T, Giruzzi G, Joffrin E, De Tommasi G, Sartori F, Farthing J, Nakanishi H, Ozeki T, Asakura N, Sakamoto Y, Ohtsu H, Sugie Y, Suzuki S, Fukuda M, Nakano T, Sano R, Ishii Y, Clement-Lorenzo S, Nakajima N. Remote experiment with WEST from ITER Remote Experimentation Centre. Fusion Engineering and Design 2020. [DOI: 10.1016/j.fusengdes.2020.111554] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Takajo I, Iwao C, Aratake M, Nakayama Y, Yamada A, Takeda N, Saeki Y, Umeki K, Toyama T, Hirabara Y, Fukuda M, Okayama A. Pseudo-outbreak of Mycobacterium paragordonae in a hospital: possible role of the aerator/rectifier connected to the faucet of the water supply system. J Hosp Infect 2020; 104:545-551. [DOI: 10.1016/j.jhin.2019.11.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/20/2019] [Accepted: 11/20/2019] [Indexed: 10/25/2022]
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23
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Tanaka M, Takechi M, Homma A, Fukuda M, Nishimura D, Suzuki T, Tanaka Y, Moriguchi T, Ahn DS, Aimaganbetov A, Amano M, Arakawa H, Bagchi S, Behr KH, Burtebayev N, Chikaato K, Du H, Ebata S, Fujii T, Fukuda N, Geissel H, Hori T, Horiuchi W, Hoshino S, Igosawa R, Ikeda A, Inabe N, Inomata K, Itahashi K, Izumikawa T, Kamioka D, Kanda N, Kato I, Kenzhina I, Korkulu Z, Kuk Y, Kusaka K, Matsuta K, Mihara M, Miyata E, Nagae D, Nakamura S, Nassurlla M, Nishimuro K, Nishizuka K, Ohnishi K, Ohtake M, Ohtsubo T, Omika S, Ong HJ, Ozawa A, Prochazka A, Sakurai H, Scheidenberger C, Shimizu Y, Sugihara T, Sumikama T, Suzuki H, Suzuki S, Takeda H, Tanaka YK, Tanihata I, Wada T, Wakayama K, Yagi S, Yamaguchi T, Yanagihara R, Yanagisawa Y, Yoshida K, Zholdybayev TK. Swelling of Doubly Magic ^{48}Ca Core in Ca Isotopes beyond N=28. Phys Rev Lett 2020; 124:102501. [PMID: 32216444 DOI: 10.1103/physrevlett.124.102501] [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: 09/18/2019] [Revised: 12/20/2019] [Accepted: 01/30/2020] [Indexed: 06/10/2023]
Abstract
Interaction cross sections for ^{42-51}Ca on a carbon target at 280 MeV/nucleon have been measured for the first time. The neutron number dependence of derived root-mean-square matter radii shows a significant increase beyond the neutron magic number N=28. Furthermore, this enhancement of matter radii is much larger than that of the previously measured charge radii, indicating a novel growth in neutron skin thickness. A simple examination based on the Fermi-type distribution, and mean field calculations point out that this anomalous enhancement of the nuclear size beyond N=28 results from an enlargement of the core by a sudden increase in the surface diffuseness of the neutron density distribution, which implies the swelling of the bare ^{48}Ca core in Ca isotopes beyond N=28.
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Affiliation(s)
- M Tanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
- Research Center for Superheavy Elements, Kyushu University, Fukuoka 819-0395, Japan
| | - M Takechi
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - A Homma
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - M Fukuda
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - D Nishimura
- Department of Physics, Tokyo City University, Setagaya, Tokyo 158-8557, Japan
| | - T Suzuki
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - Y Tanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Moriguchi
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - D S Ahn
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - A Aimaganbetov
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- L.N. Gumilyov Eurasian National University, 010008 Astana, Kazakhstan
| | - M Amano
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - H Arakawa
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - S Bagchi
- Astronomy and Physics Department, Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada
- Justus Liebig University, 35392 Giessen, Germany
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - K-H Behr
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - N Burtebayev
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
| | - K Chikaato
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - H Du
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Ebata
- Department of Physics, Saitama University, Saitama 338-8570, Japan
- School of Environment and Society, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
| | - T Fujii
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - N Fukuda
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - H Geissel
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - T Hori
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - W Horiuchi
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - S Hoshino
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - R Igosawa
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - A Ikeda
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - N Inabe
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - K Inomata
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - K Itahashi
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - T Izumikawa
- Institute for Research Promotion, Niigata University, Niigata 950-8510, Japan
| | - D Kamioka
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - N Kanda
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - I Kato
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - I Kenzhina
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan
| | - Z Korkulu
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - Y Kuk
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- L.N. Gumilyov Eurasian National University, 010008 Astana, Kazakhstan
| | - K Kusaka
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - K Matsuta
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Mihara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - E Miyata
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - D Nagae
- Research Center for Superheavy Elements, Kyushu University, Fukuoka 819-0395, Japan
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - S Nakamura
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Nassurlla
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan
| | - K Nishimuro
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - K Nishizuka
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - K Ohnishi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Ohtake
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - T Ohtsubo
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - S Omika
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - H J Ong
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - A Ozawa
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - A Prochazka
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - H Sakurai
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - C Scheidenberger
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - Y Shimizu
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - T Sugihara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Sumikama
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - H Suzuki
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - S Suzuki
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - H Takeda
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - Y K Tanaka
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - I Tanihata
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
| | - T Wada
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - K Wakayama
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - S Yagi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Yamaguchi
- Department of Physics, Saitama University, Saitama 338-8570, Japan
- Tomonaga Center for the History of the Universe, University of Tsukuba, Ibaraki 305-8571, Japan
| | - R Yanagihara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y Yanagisawa
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - K Yoshida
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - T K Zholdybayev
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan
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Fukuda M, Kawamural K, Kawaharal K, Ohkawal T, Kamiyama Y, Hondal M. Influence of Instilled Volume on the Peritoneal Equilibration Test (Pet). Perit Dial Int 2020. [DOI: 10.1177/089686089401400421] [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] [Indexed: 11/17/2022] Open
Affiliation(s)
- M. Fukuda
- Department of Nephrology The Tokyo Metropolitan Kiyose Children's Hospital Umezono 1-3-1, Kiyose, Tokyo 244 Japan
- Department of Pediatrics Yamaguchi University School of Medicine Ube, Yamaguchi 755 Japan
| | - K. Kawamural
- Department of Nephrology The Tokyo Metropolitan Kiyose Children's Hospital Umezono 1-3-1, Kiyose, Tokyo 244 Japan
| | - K. Kawaharal
- Department of Nephrology The Tokyo Metropolitan Kiyose Children's Hospital Umezono 1-3-1, Kiyose, Tokyo 244 Japan
| | - T. Ohkawal
- Department of Nephrology The Tokyo Metropolitan Kiyose Children's Hospital Umezono 1-3-1, Kiyose, Tokyo 244 Japan
| | - Y. Kamiyama
- Department of Nephrology The Tokyo Metropolitan Kiyose Children's Hospital Umezono 1-3-1, Kiyose, Tokyo 244 Japan
| | - M. Hondal
- Department of Nephrology The Tokyo Metropolitan Kiyose Children's Hospital Umezono 1-3-1, Kiyose, Tokyo 244 Japan
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25
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Hayashi F, Taniguchi H, Takayuki S, Umeyama Y, Dotsu Y, Gyotoku H, Senju H, Takemoto S, Yamaguchi H, Ono S, Tomono H, Shimada M, Soda H, Fukuda M, Hiroshi M. A retrospective analysis of patients with non-small cell lung cancer who developed drug-induced lung disorder by immune checkpoint inhibitors. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz438.011] [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: 11/12/2022] Open
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26
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Ono S, Senju H, Taniguchi H, Tomono H, Shimada M, Hayashi F, Suyama T, Honda N, Umeyama Y, Dotsu Y, Gyotoku H, Takemoto S, Yamaguchi H, Fukuda M, Soda H, Mukae H. A retrospective analysis of immune checkpoint therapy in patients with non-small cell lung cancer: Focus on thyroid disorder. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz438.013] [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: 11/12/2022] Open
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27
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Tsutsui S, Ogihara Y, Hayashi H, Fukushima K, Yoshida S, Mori M, Takatani H, Fukuda T, Minami K, Fukushima A, Morimoto K, Kuroda K, Nagayasu T, Yamaguchi H, Mukae H, Fukuda M, Ashizawa K. P2.11-43 Management of Pulmonary Nodules Detected on CT: Multicenter Collaborative Study in Nagasaki Prefecture. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1743] [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: 10/25/2022]
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28
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Nishizaki D, Hida K, Sumii A, Sakai Y, Konishi T, Akagi T, Yamaguchi T, Akiyoshi T, Fukuda M, Yamamoto S, Maruyama S, Okajima M, Miyakura Y, Okamura R, Arizono S, Yamamoto M, Kawada K, Morita S, Watanabe M. Neoadjuvant chemoradiotherapy with/without lateral lymph node dissection for low rectal cancer: Which patients can benefit? Ann Oncol 2019. [DOI: 10.1093/annonc/mdz246.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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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29
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Enomoto A, Fukuda M, Matsunaga K, Kusaka S, Shimomura Y, Hamada S. Contribution to oral and maxillary surgery and surgical technique of osteo-odontokeratoprosthesis in Japan. Br J Oral Maxillofac Surg 2019; 57:861-865. [PMID: 31378404 DOI: 10.1016/j.bjoms.2019.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 07/01/2019] [Indexed: 10/26/2022]
Abstract
Osteo-odontokeratoprosthesis (OOKP) is a technique invented by Strampelli in 1963, in which the patient's own tooth root is used to support an optical cylinder. It uses an autologous tooth-bone-periodontal complex to mount an optical cylinder, which is stabilised by overlying autologous buccal mucosa. OOKP involves two, staged procedures done by ophthalmologists and oral surgeons, and the main contribution from the oral surgeon is during the first stage. To date we have done nine first-stage, and completed eight second-stage, OOKP operations in Japan with a mean follow-up of eight years and 11 months by modifying the original method of the oral surgery. All OOKP procedures were unilateral, and canines were selected as the donor teeth. Patients developed ocular blindness as a result of Stevens-Johnson syndrome, ocular cicatricial pemphigoid, and chemical and thermal burns to the cornea and ocular surface. All eight patients who completed the second stage have been stable, and there have been no major perioperative or postoperative oral complications. The patients' visual acuities were stable with no serious complications. Here we report the technical details of the oral contribution to OOKP.
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Affiliation(s)
- A Enomoto
- Department of Oral and Maxillofacial Surgery, Kindai University, Faculty of Medicine, Japan.
| | - M Fukuda
- Department of Ophthalmology, Kindai University, Faculty of Medicine, Japan
| | - K Matsunaga
- Department of Oral and Maxillofacial Surgery, Kindai University, Faculty of Medicine, Japan
| | - S Kusaka
- Department of Ophthalmology, Kindai University, Faculty of Medicine, Japan
| | - Y Shimomura
- Department of Ophthalmology, Fuchu Hospital, Japan
| | - S Hamada
- Department of Oral and Maxillofacial Surgery, Kindai University, Faculty of Medicine, Japan
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30
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Koay HW, Shima T, Fukuda M, Kanda H, Hara S, Yorita T. Experimental study of fast-neutron production and moderation for accelerator-based BNCT system. Appl Radiat Isot 2019; 152:11-17. [PMID: 31212109 DOI: 10.1016/j.apradiso.2019.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 05/06/2019] [Accepted: 06/02/2019] [Indexed: 11/29/2022]
Abstract
This work aims to study the fast-neutron production and moderation for the development of a compact accelerator-based multi-port Boron Neutron Capture Therapy (AB-mBNCT) system. An initial energy distribution and the efficiency of a test moderator assembly (TMA) for fast neutrons from a tungsten (W) target bombarded with a 53 MeV proton beam were measured using organic scintillators. The experimental results were reproduced with reasonable accuracy by simulations using the PHITS code. This paper will discuss about the experimental outcome and the related benchmark calculations by PHITS code.
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Affiliation(s)
- H W Koay
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka Prefecture, 567-0047, Japan.
| | - T Shima
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka Prefecture, 567-0047, Japan
| | - M Fukuda
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka Prefecture, 567-0047, Japan
| | - H Kanda
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka Prefecture, 567-0047, Japan
| | - S Hara
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka Prefecture, 567-0047, Japan
| | - T Yorita
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka Prefecture, 567-0047, Japan
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31
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Terashima S, Yu L, Ong HJ, Tanihata I, Adachi S, Aoi N, Chan PY, Fujioka H, Fukuda M, Geissel H, Gey G, Golak J, Haettner E, Iwamoto C, Kawabata T, Kamada H, Le XY, Sakaguchi H, Sakaue A, Scheidenberger C, Skibiński R, Sun BH, Tamii A, Tang TL, Tran DT, Topolnicki K, Wang TF, Watanabe YN, Weick H, Witała H, Zhang GX, Zhu LH. Dominance of Tensor Correlations in High-Momentum Nucleon Pairs Studied by (p,pd) Reaction. Phys Rev Lett 2018; 121:242501. [PMID: 30608744 DOI: 10.1103/physrevlett.121.242501] [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: 09/07/2018] [Indexed: 06/09/2023]
Abstract
The isospin character of p-n pairs at large relative momentum has been observed for the first time in the ^{16}O ground state. A strong population of the J,T=1,0 state and a very weak population of the J,T=0,1 state were observed in the neutron pickup domain of ^{16}O(p,pd) at 392 MeV. This strong isospin dependence at large momentum transfer is not reproduced by the distorted-wave impulse approximation calculations with known spectroscopic amplitudes. The results indicate the presence of high-momentum protons and neutrons induced by the tensor interactions in the ground state of ^{16}O.
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Affiliation(s)
- S Terashima
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
| | - L Yu
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
| | - H J Ong
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - I Tanihata
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - S Adachi
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - N Aoi
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - P Y Chan
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - H Fujioka
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - M Fukuda
- Department of Physics, Osaka University, 1-5 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - H Geissel
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planskstraße 1, 64291 Darmstadt, Germany
- Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Gießen, Germany
| | - G Gey
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - J Golak
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - E Haettner
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planskstraße 1, 64291 Darmstadt, Germany
- Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Gießen, Germany
| | - C Iwamoto
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - T Kawabata
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Kamada
- Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
| | - X Y Le
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
| | - H Sakaguchi
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - A Sakaue
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - C Scheidenberger
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planskstraße 1, 64291 Darmstadt, Germany
- Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Gießen, Germany
| | - R Skibiński
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - B H Sun
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
- Beijing Advanced Innovation Center for Big Data based Precision Medicine, Beihang University, 100083 Beijing, China
| | - A Tamii
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - T L Tang
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - D T Tran
- RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- Institute of Physics, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
| | - K Topolnicki
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - T F Wang
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
| | - Y N Watanabe
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
| | - H Weick
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planskstraße 1, 64291 Darmstadt, Germany
| | - H Witała
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - G X Zhang
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
| | - L H Zhu
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
- International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China
- Beijing Advanced Innovation Center for Big Data based Precision Medicine, Beihang University, 100083 Beijing, China
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32
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Suyama T, Taniguchi H, Ikeda T, Yamaguchi H, Kitazaki T, Soda H, Nakatomi K, Kinosita A, Fukuda M, Mukae H. Phase II study of nedaplatin plus amrubicin in patients with untreated, advanced or relapsed squamous cell lung cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy425.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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33
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Nakamura T, Ikeda M, Shibata S, Kon Y, Konuma K, Sanada T, Gonda H, Suto Y, Kobayashi K, Tamura H, Kobayashi M, Hasegawa A, Amagasa Y, Suzuki A, Fukuda M, Aoyagi C, Matsuura N, Kawashima Y, Shimura M, Takita N. Malignant lymphoma detected by screening program with esophagogastroduodenoscopy of one private screening center in Japan. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy297.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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34
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Maruyama R, Fukuda M, Kitazaki T, Ogawara D, Ichiki M, Mukae H, Nakagaki N, Kishimoto J, Ichinose Y, Sugio K. P1.01-65 PII of Pemetrexed or Pemetrexed Plus Bevacizumab for Previously Untreated Elderly (>=75) Non-Squamous NSCLC (LOGIK1201). J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.621] [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: 11/25/2022]
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35
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Ota M, Fukuda M. Highly efficient on-chip excitation of orthogonal-polarized gap plasmons for a dense polarization multiplexing circuit. Opt Express 2018; 26:21778-21783. [PMID: 30130879 DOI: 10.1364/oe.26.021778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 07/29/2018] [Indexed: 06/08/2023]
Abstract
We propose an on-chip excitation structure for orthogonal-polarized gap plasmons in polarization multiplexing photonic integrated circuits. The structure consists of a Au nanostripe and tapered gap for refractive index matching to a nano-scale gap plasmonic waveguide; it was fabricated on the top surface of a dielectric-stripe-type waveguide. The excitation ratio from the dielectric-stripe-surface mode to the metallic-gap mode was estimated to be 0.79 using the finite-difference time-domain method for a 100-nm-wide, 100-nm-thick gap waveguide. We experimentally observed the gap mode plasmonic intensity distribution using scanning near-field optical microscopy and confirmed the conversion.
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36
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Shimizu H, Sato W, Mihara M, Fujisawa T, Fukuda M, Matsuta K. Temperature-dependent thermal behavior of impurity hydrogen trapped in vacancy-type defects in single crystal ZnO. Appl Radiat Isot 2018; 140:224-227. [PMID: 30059862 DOI: 10.1016/j.apradiso.2018.07.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 12/29/2017] [Revised: 07/19/2018] [Accepted: 07/19/2018] [Indexed: 11/19/2022]
Abstract
Interacting nature between impurity hydrogen atoms and vacancy-type defects in single crystal ZnO was investigated by means of positron annihilation lifetime spectroscopy. In order to clarify the observation of their thermal behavior, the sample was implanted with 1H+ using an electrostatic accelerator. After the implantation, the positron lifetime became shorter, which suggests that the hydrogen atoms were captured by zinc vacancies (VZn) to form vacancy-hydrogen complexes (VZn + nH). The complexes decompose by heat treatment: most of the hydrogen atoms gradually dissociate from VZn + nH in the temperature range 393-773 K. It was also suggested that large vacancy clusters were formed by the agglomeration of smaller clusters during the process of stepwise isochronal annealings at temperatures from 773 to 1073 K, and their decomposition took place at 1173-1373 K. Temperature-dependent thermal behaviors of hydrogen atoms and vacancy-type defects in ZnO are discussed.
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Affiliation(s)
- H Shimizu
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - W Sato
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan; Institute of Science and Engineering, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan.
| | - M Mihara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Fujisawa
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - M Fukuda
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - K Matsuta
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
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37
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Furuki T, Ota M, Fukuda M. Plasmonic slow light device using superfocusing on a bow-tied metallic waveguide. Opt Lett 2018; 43:3232-3235. [PMID: 30004473 DOI: 10.1364/ol.43.003232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/09/2018] [Indexed: 06/08/2023]
Abstract
We demonstrate a plasmonic slow light device using super focusing on a bow-tied metallic waveguide that can be fabricated using complementary metal-oxide semiconductor compatible processes. By solving the characteristic equation of a bow-tied metallic waveguide, we confirmed that the group indices increased as the waveguide width decreased and that they could attain over 11.0 in the telecommunication wavelength band. Additionally, we experimentally confirmed using an autocorrelation measurement system in which the pulse width of the bow-tied metallic waveguide was 8.0 fs longer than that of a ridged metallic waveguide. Therefore, the proposed device will contribute to the realization of all-plasmonic memories and amplifiers.
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38
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Enomoto A, Matsunaga K, Fukuda M, Shimomura Y, Hamada S. Application of a resin handle for preparation of lamina for osteo-odontokeratoprosthesis. Br J Oral Maxillofac Surg 2018; 56:554-555. [DOI: 10.1016/j.bjoms.2018.04.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 04/25/2018] [Indexed: 11/24/2022]
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39
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Ishii Y, Omori K, Sakai H, Arakawa Y, Fukuda M. Versatile Approach for Reducing Propagation Loss in Wet-Electrospun Polymer Fiber Waveguides. ACS Omega 2018; 3:6787-6793. [PMID: 31458849 PMCID: PMC6644405 DOI: 10.1021/acsomega.8b00835] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 06/08/2018] [Indexed: 06/10/2023]
Abstract
Wet-electrospun (WES) polymer micron and submicron fibers are promising building blocks for small, flexible optical fiber devices, such as waveguides, sensors, and lasers. WES polymer fibers have an inherent cylindrical geometry similar to that of optical fibers and a relatively large aspect ratio. Furthermore, WES fibers can be produced using low-cost and low-energy manufacturing techniques with large-area fabrication and a large variety of materials. However, the high propagation loss in the fibers, which is normally on the order of tens or thousands of decibels per centimeter in the visible light region, has impeded the use of these fibers in optical fiber devices. Here, the origin of propagation losses is examined to develop a comprehensive and versatile approach to reduce these losses. The excess light scattering that occurs in fibers due to their inhomogeneous density is one of the primary factors in the propagation loss. To reduce this loss, the light transmission characteristics were investigated for single WES polymer fibers heated at different temperatures. The propagation loss was significantly reduced from 17.0 to 8.1 dB cm-1 at 533 nm wavelength, by heating the fibers above their glass transition temperature, 49.8 °C. In addition, systematic verification of the possible loss factors in the fibers confirmed that the propagation loss reduction could be attributed to the reduction of extrinsic excess scattering loss. Heating WES polymer fibers above their glass transition temperature is a versatile approach for reducing the propagation loss and should be applicable to a variety of WES fibers. This finding paves the way for low-loss WES fiber waveguides and their subsequent application in small, flexible optical fiber devices, including waveguides, sensors, and lasers.
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Affiliation(s)
- Yuya Ishii
- Faculty
of Fiber Science and Engineering, Kyoto
Institute of Technology, Kyoto, Kyoto 606-8585, Japan
| | - Keisho Omori
- Department of Electrical and Electronic
Information Engineering and Department of
Environmental and Life Sciences, Toyohashi
University of Technology, Toyohashi, Aichi 441-8580, Japan
| | - Heisuke Sakai
- School
of Materials Science, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa 923-1292, Japan
| | - Yuki Arakawa
- Department of Electrical and Electronic
Information Engineering and Department of
Environmental and Life Sciences, Toyohashi
University of Technology, Toyohashi, Aichi 441-8580, Japan
| | - Mitsuo Fukuda
- Department of Electrical and Electronic
Information Engineering and Department of
Environmental and Life Sciences, Toyohashi
University of Technology, Toyohashi, Aichi 441-8580, Japan
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Tran DT, Ong HJ, Hagen G, Morris TD, Aoi N, Suzuki T, Kanada-En'yo Y, Geng LS, Terashima S, Tanihata I, Nguyen TT, Ayyad Y, Chan PY, Fukuda M, Geissel H, Harakeh MN, Hashimoto T, Hoang TH, Ideguchi E, Inoue A, Jansen GR, Kanungo R, Kawabata T, Khiem LH, Lin WP, Matsuta K, Mihara M, Momota S, Nagae D, Nguyen ND, Nishimura D, Otsuka T, Ozawa A, Ren PP, Sakaguchi H, Scheidenberger C, Tanaka J, Takechi M, Wada R, Yamamoto T. Evidence for prevalent Z = 6 magic number in neutron-rich carbon isotopes. Nat Commun 2018; 9:1594. [PMID: 29686394 PMCID: PMC5913314 DOI: 10.1038/s41467-018-04024-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 03/28/2018] [Indexed: 11/08/2022] Open
Abstract
The nuclear shell structure, which originates in the nearly independent motion of nucleons in an average potential, provides an important guide for our understanding of nuclear structure and the underlying nuclear forces. Its most remarkable fingerprint is the existence of the so-called magic numbers of protons and neutrons associated with extra stability. Although the introduction of a phenomenological spin-orbit (SO) coupling force in 1949 helped in explaining the magic numbers, its origins are still open questions. Here, we present experimental evidence for the smallest SO-originated magic number (subshell closure) at the proton number six in 13-20C obtained from systematic analysis of point-proton distribution radii, electromagnetic transition rates and atomic masses of light nuclei. Performing ab initio calculations on 14,15C, we show that the observed proton distribution radii and subshell closure can be explained by the state-of-the-art nuclear theory with chiral nucleon-nucleon and three-nucleon forces, which are rooted in the quantum chromodynamics.
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Affiliation(s)
- D T Tran
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
- Institute of Physics, Vietnam Academy of Science and Technology, Hanoi, 10000, Vietnam
| | - H J Ong
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan.
| | - G Hagen
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, TN, 37996, USA
| | - T D Morris
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, TN, 37996, USA
| | - N Aoi
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - T Suzuki
- Department of Physics, College of Humanities and Sciences, Nihon University, Tokyo, 156-8550, Japan
- National Astronomical Observatory of Japan, Tokyo, 181-8588, Japan
| | - Y Kanada-En'yo
- Department of Physics, Kyoto University, Kyoto, 606-8502, Japan
| | - L S Geng
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191, Beijing, China
| | - S Terashima
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191, Beijing, China
| | - I Tanihata
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191, Beijing, China
| | - T T Nguyen
- Pham Ngoc Thach University of Medicine, Ho Chi Minh, 700000, Vietnam
- Faculty of Physics and Engineering, VNUHCM-University of Science, Ho Chi Minh City, 70250, Vietnam
- Sungkyunkwan University, Gyeonggi-do, 16419, South Korea
| | - Y Ayyad
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - P Y Chan
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - M Fukuda
- Department of Physics, Osaka University, Osaka, 560-0043, Japan
| | - H Geissel
- GSI Helmholtzzentrum für Schwerionenforschung, 64291, Darmstadt, Germany
- Justus Liebig University, 35392, Giessen, Germany
| | - M N Harakeh
- GSI Helmholtzzentrum für Schwerionenforschung, 64291, Darmstadt, Germany
- KVI Center for Advanced Radiation Technology, University of Groningen, 9747 AA, Groningen, The Netherlands
| | - T Hashimoto
- Rare Isotope Science Project, Institute for Basic Science, Daejeon, 34047, Korea
| | - T H Hoang
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
- Institute of Physics, Vietnam Academy of Science and Technology, Hanoi, 10000, Vietnam
| | - E Ideguchi
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - A Inoue
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - G R Jansen
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- National Center for Computational Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - R Kanungo
- Astronomy and Physics Department, Saint Mary's University, Halifax, NS, B3H 3C3, Canada
| | - T Kawabata
- Department of Physics, Kyoto University, Kyoto, 606-8502, Japan
| | - L H Khiem
- Institute of Physics, Vietnam Academy of Science and Technology, Hanoi, 10000, Vietnam
| | - W P Lin
- Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
| | - K Matsuta
- Department of Physics, Osaka University, Osaka, 560-0043, Japan
| | - M Mihara
- Department of Physics, Osaka University, Osaka, 560-0043, Japan
| | - S Momota
- Kochi University of Technology, Kochi, 782-8502, Japan
| | - D Nagae
- RIKEN Nishina Center, Saitama, 351-0198, Japan
| | - N D Nguyen
- Dong Nai University, Dong Nai, 81000, Vietnam
| | - D Nishimura
- Tokyo University of Science, Chiba, 278-8510, Japan
| | - T Otsuka
- Department of Physics, University of Tokyo, Tokyo, 113-0033, Japan
| | - A Ozawa
- Institute of Physics, University of Tsukuba, Ibaraki, 305-8571, Japan
| | - P P Ren
- Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
| | - H Sakaguchi
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - C Scheidenberger
- GSI Helmholtzzentrum für Schwerionenforschung, 64291, Darmstadt, Germany
- Justus Liebig University, 35392, Giessen, Germany
| | - J Tanaka
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
| | - M Takechi
- Department of Physics, Niigata University, Niigata, 950-2181, Japan
| | - R Wada
- Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
- Cyclotron Institute, Texas A&M University, College Station, TX, 77840, USA
| | - T Yamamoto
- Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047, Japan
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Inoue A, Tamii A, Abe K, Adachi S, Aoi N, Asai M, Fukuda M, Gey G, Hashimoto T, Ideguchi E, Isaak J, Kobayashi N, Maeda Y, Makii H, Matsuta K, Mihara M, Miura M, Shima T, Shimizu H, Tang R, Dinh Trong T, Yamaguchi H, Yang L. Study of the contribution of the 7Be( d, p) reaction to the 7Li problem in the Big-Bang Nucleosynthesis. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201818402007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Our research goal is to measure the 7Be(d, p) reaction to shed light on the 7Li problem in the Big-Bang Nucleosynthesis. We are developing an unstable 7Be target for a high-resolution measurement of the 7Be(d, p)8Be reaction. We plan to compare two methods to producethe 7Be target: (1) Activation method, and (2) Implantation method. We performed an activation methodexperiment at the Van de Graaff at Osaka University, and obtained the cross-section data. A second experiment to obtain more accurate data will take place at the Tandem Electrostatic Accelerator, Kobe University. We have also made a 7Be target with implantation method at CRIB, Center for Nuclear Study, Univer-sity of Tokyo. An experiment to measure the (d, p) reaction with the implanted target is scheduled for 2018 at Japan Atomic Energy Agency, tandem facility.
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42
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Tsujino S, Ikeda T, Taniguchi H, Shimada M, Gyoutoku H, Senju H, Yamaguchi H, Nakatomi K, Fukuda M, Mukae H. P2.07-045 A Retrospective Analysis of Nivolumab-Related Pneumonitis in Non-Small Cell Lung Cancer Patients. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.11.104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Fukuda M, Okumura M, Arimori K, Takahira A, Mori M, Nakamura D, Shimada M, Taniguchi H, Gyotoku H, Senju H, Ikeda T, Yamaguchi H, Nakatomi K, Tsuchiya T, Mukae H, Ashizawa K. P1.03-015 The Relationship between the UGT1A1*27 and UGT1A1*7 Genetic Polymorphisms and Irinotecan-Related Toxicities in Patients with Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.819] [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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Ohue Y, Kurose K, Isobe M, Fukuda M, Nakayama E, Oka M. P2.07-018 Correlation of Clinical Response and XAGE1 Immunity in Lung Adenocarcinoma. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.11.077] [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: 10/18/2022]
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45
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Rangacharyulu C, Fukuda M, Kanda H, Nishizaki S, Takahashi N. Assessment of 43,44Sc isotope production in proton- and alpha- induced reactions. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5515-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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46
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Ohno T, Yamamoto G, Hayashi JI, Nishida E, Goto H, Sasaki Y, Kikuchi T, Fukuda M, Hasegawa Y, Mogi M, Mitani A. Angiopoietin-like protein 2 regulates Porphyromonas gingivalis lipopolysaccharide-induced inflammatory response in human gingival epithelial cells. PLoS One 2017; 12:e0184825. [PMID: 28934245 PMCID: PMC5608282 DOI: 10.1371/journal.pone.0184825] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 08/31/2017] [Indexed: 11/27/2022] Open
Abstract
Angiopoietin-like protein 2 (ANGPTL2) maintains tissue homeostasis by inducing inflammation and angiogenesis. It is produced in infiltrating immune cells or resident cells, such as adipocytes, vascular endothelial cells, and tumor cells. We hypothesized that ANGPTL2 might play an important role as a unique mediator in both systemic and periodontal disease. We demonstrated an increased ANGPTL2 concentration in gingival crevicular fluid from chronic periodontitis patients. Porphyromonas gingivalis lipopolysaccharide (LPS) treatment strongly induced ANGPTL2 mRNA and protein levels in Ca9-22 human gingival epithelial cells. Recombinant human ANGPTL2 increased interleukin 1β (IL-1β), IL-8, and tumor necrosis factor-α (TNF-α) mRNA and protein levels in Ca9-22 cells. Small-interfering (si)RNA-mediated ANGPTL2 knockdown in Ca9-22 cells reduced IL-1β, IL-8 and TNF-α mRNA and protein levels compared with control siRNA (p<0.01) in P. gingivalis LPS-stimulated Ca9-22 cells. Antibodies against integrin α5β1, an ANGPTL receptor, blocked induction of these inflammatory cytokines in P. gingivalis LPS-treated Ca9-22 cells, suggesting that secreted ANGPTL induces inflammatory cytokines in gingival epithelial cells via an autocrine loop. The classic sequential cascade of P. gingivalis LPS → inflammatory cytokine induction is well established. However, in the current study, we reveal a novel cascade comprising sequential P. gingivalis LPS → ANGPTL2 → integrin α5β1 → inflammatory cytokine induction, which might be responsible for inducing potent periodontal disorganization activity in gingival epithelial cells. Via this pathway, ANGPTL2 functions in the pathogenesis of periodontitis and contributes to prolonging chronic inflammation in patients with systemic disease.
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Affiliation(s)
- Tasuku Ohno
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Aichi, Japan
| | - Genta Yamamoto
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Aichi, Japan
- * E-mail:
| | - Jun-ichiro Hayashi
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Aichi, Japan
| | - Eisaku Nishida
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Aichi, Japan
| | - Hisashi Goto
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Aichi, Japan
| | - Yasuyuki Sasaki
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Aichi, Japan
| | - Takeshi Kikuchi
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Aichi, Japan
| | - Mitsuo Fukuda
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Aichi, Japan
| | - Yoshiaki Hasegawa
- Department of Microbiology, School of Dentistry, Aichi Gakuin University, Nagoya, Chikusa-ku, Aichi, Japan
| | - Makio Mogi
- Department of Integrative Education of Pharmacy, School of Pharmacy, Aichi Gakuin University, Chikusa-ku, Nagoya, Aichi, Japan
| | - Akio Mitani
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Aichi, Japan
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Nakamura T, Kon Y, Konuma K, Sanada T, Shibata S, Gonda H, Suto Y, Amagasa Y, Suzuki A, Fukuda M, Aoyagi C. Gastric cancer detected after Helicobacter pylori eradication at one private screening center in Japan. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx383.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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48
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Ban H, Sugimoto M, Otsuka T, Murata M, Nakata T, Hasegawa H, Fukuda M, Inatomi O, Bamba S, Kushima R, Andoh A. Letter: a potassium-competitive acid blocker vs a proton pump inhibitor for healing endoscopic submucosal dissection-induced artificial ulcers after treatment of gastric neoplasms. Aliment Pharmacol Ther 2017; 46:564-565. [PMID: 28776744 DOI: 10.1111/apt.14202] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- H Ban
- Division of Digestive Endoscopy, Shiga University of Medical Science Hospital, Otsu, Japan
| | - M Sugimoto
- Division of Digestive Endoscopy, Shiga University of Medical Science Hospital, Otsu, Japan
| | - T Otsuka
- Department of Gastroenterology, Shiga University of Medical Science Hospital, Otsu, Japan
| | - M Murata
- Department of Gastroenterology, Shiga University of Medical Science Hospital, Otsu, Japan
| | - T Nakata
- Department of Gastroenterology, Shiga University of Medical Science Hospital, Otsu, Japan
| | - H Hasegawa
- Division of Digestive Endoscopy, Shiga University of Medical Science Hospital, Otsu, Japan
| | - M Fukuda
- Department of Clinical Laboratory Medicine, Shiga University of Medical Science Hospital, Otsu, Japan
| | - O Inatomi
- Department of Gastroenterology, Shiga University of Medical Science Hospital, Otsu, Japan
| | - S Bamba
- Department of Gastroenterology, Shiga University of Medical Science Hospital, Otsu, Japan
| | - R Kushima
- Department of Clinical Laboratory Medicine, Shiga University of Medical Science Hospital, Otsu, Japan
| | - A Andoh
- Department of Gastroenterology, Shiga University of Medical Science Hospital, Otsu, Japan
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Iwamura Y, Hayashi JI, Sato T, Sato S, Murakami T, Fujimura T, Sasaki Y, Okada K, Takahashi E, Kikuchi T, Aino M, Noguchi T, Shimazaki Y, Mitani A, Fukuda M. Assessment of oral malodor and tonsillar microbiota after gargling with benzethonium chloride. J Oral Sci 2017; 58:83-91. [PMID: 27021544 DOI: 10.2334/josnusd.58.83] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
The oropharyngeal area can be a source of halitosis. However, the relationship between healthy tonsillar microbiota and halitosis is poorly understood. We conducted a pilot clinical study to clarify the effect of gargling with an antiseptic agent on tonsillar microbiota in patients with halitosis. Twenty-nine halitosis patients who did not have otolaryngologic disease or periodontitis were assigned randomly to one of three groups: benzethonium chloride (BZC) gargle; placebo gargle; no gargle. Concentrations of volatile sulfur compounds (VSCs) in mouth air, the organoleptic score (ORS) and tongue-coating score (TCS) were measured before and after testing. Tonsillar microbiota were assessed by detection of periodontal pathogens, and profiling with terminal-restriction fragment length polymorphism (T-RFLP) analysis and sequencing of 16SrRNA clone libraries for taxonomic assignment. Gargling with BZC reduced the concentrations of methyl mercaptan and hydrogen sulfide and the ORS, but did not affect the TCS or prevalence of periodontal pathogens. T-RFLP analyses and 16SrRNA clone sequencing showed a tendency for some candidate species to decrease in the test group. Although gargling of the oropharyngeal area with an antiseptic agent can reduce oral malodor, it appears that tonsillar microbiota are not influenced greatly. (J Oral Sci 58, 83-91, 2016).
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Affiliation(s)
- Yuki Iwamura
- Department of Periodontology, School of Dentistry, Aichi Gakuin University
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Manzano R, Aoki Y, Lee Y, Dafinca R, Aoki M, Douglas A, Varela M, Sathyaprakash C, Scaber J, Barbagallo P, Vader P, Mäger I, Ezzat K, Turner M, Ito N, Gasco S, Ohbayashi N, El Andaloussi S, Taked S, Fukuda M, Talbot K, Wood M. C9ORF72 and RAB7L1 regulate vesicle traffi cking in Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Neuromuscul Disord 2017. [DOI: 10.1016/s0960-8966(17)30312-7] [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: 10/19/2022]
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