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Mori N, Nakamura A, Hirai J, Asai N, Shibata Y, Takayama M, Kawamoto Y, Miyazaki N, Sakanashi D, Ohno T, Yamada A, Suematsu H, Koita I, Chida S, Ohta T, Mikamo H. Clinical characteristics and antimicrobial susceptibility of Fusobacterium species isolated over 10 years at a Japanese university hospital. Eur J Clin Microbiol Infect Dis 2024; 43:423-433. [PMID: 38112966 DOI: 10.1007/s10096-023-04734-2] [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: 10/16/2023] [Accepted: 12/02/2023] [Indexed: 12/21/2023]
Abstract
PURPOSE Anaerobic bacteria, existing on human skin and mucous membranes, can cause severe infections with complications or mortality. We examined the clinical characteristics of patients infected with Fusobacterium spp. and assessed their antibiotic susceptibility. METHODS Clinical data were collated from patients diagnosed with Fusobacterium infections in a Japanese university hospital between 2014 and 2023. Antibiotic susceptibility tests were conducted following the Clinical and Laboratory Standards Institute guidelines. RESULTS We identified 299 Fusobacterium isolates. The median age was 61 years (range, 14-95 years), with females constituting 43.1% of the patients. Most infections were community-acquired (84.6%, 253/299). Multiple bacterial strains were isolated simultaneously in 74.6% of cases. One-fourth of the patients had solid organ malignancies (25.4%, 76/299), and 14.5% (11/76) of those had colorectal cancer. The 30-day mortality rate was 1.3%. Fusobacterium species were isolated from blood cultures in 6% (18/299) of the patients. Patients, aged 75 years or older, with cerebrovascular disease or hematologic malignancy exhibited significantly higher prevalence of blood culture isolates in univariate analysis. Each Fusobacterium species had its characteristic infection site. Approximately 5% F. nucleatum and F. necrophorum isolates showed penicillin G resistance. Moxifloxacin resistance was observed in varying degrees across strains, ranging from 4.6 to 100% of isolates. All isolates were sensitive to β-lactam/β-lactamase inhibitors, carbapenems, and metronidazole. CONCLUSION We show a link between Fusobacterium species and solid organ malignancies. We observed resistance to penicillin, cefmetazole, clindamycin, and moxifloxacin, warranting caution in their clinical use. This study offers valuable insights for managing Fusobacterium infections and guiding empirical treatments.
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Affiliation(s)
- Nobuaki Mori
- Department of Clinical Infectious Diseases, Aichi Medical University, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Akiko Nakamura
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Jun Hirai
- Department of Clinical Infectious Diseases, Aichi Medical University, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Nobuhiro Asai
- Department of Clinical Infectious Diseases, Aichi Medical University, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Yuichi Shibata
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Mina Takayama
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Yuzuka Kawamoto
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Narimi Miyazaki
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Daisuke Sakanashi
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Tomoko Ohno
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Atsuko Yamada
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Hiroyuki Suematsu
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Isao Koita
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Sumie Chida
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Toshiaki Ohta
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan
| | - Hiroshige Mikamo
- Department of Clinical Infectious Diseases, Aichi Medical University, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan.
- Department of Infection Prevention and Control, Aichi Medical University Hospital, 1-1 Yazakokarimata Nagakute-Shi, Aichi, 480-1195, Japan.
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Ohno T, Sakanashi D, Yamada A, Takayama M, Kawamoto Y, Miyazaki N, Suematsu H, Tida S, Nakamura A, Oota H, Mikamo H. [Relationship between Serotypes and Biotypes of Yersinia enterocolitica and the Names of Identified Bacteria in the Microbial Identification and Susceptibility Testing Devices]. Rinsho Biseibutshu Jinsoku Shindan Kenkyukai Shi 2023; 33:13-18. [PMID: 38229457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Yersinia enterocolitica is a causative agent of food poisoning and has been isolated from pork and stream water, causing Yersinia enterocolitica in humans. The bacterium is divided into multiple serotypes and biotypes, among which serotypes O3 and O8 and biotypes 1B, 3, and 4 are frequently isolated in Japan. Biotype 3 can be classified as [VP+, Suc+], [VP-, Suc+], [VP-, Suc-] based on the biochemical properties. Among them, [O3, 3, VP-, Suc-] has been reported to be identified as Yersinia kristensenii in a simple identification kit. An increasing number of facilities in the field of microbiological testing are currently using mass spectrometers to identify species of microorganisms. However, there are many facilities where mass spectrometers have not yet been installed and microbial identification and susceptibility testing devices are used to identify bacterial species. No reports have described how the [O3, 3, VP-, Suc-] type, which is identified as Y. kristensenii in the simple identification kit, is identified by the microbial identification and susceptibility testing devices. In this study, 15 strains of Y. enterocolitica, which were previously isolated, serotyped, and biotyped from fecal culture tests at our hospital, were analyzed to see how these strains were identified in RAISUS S4, Microscan WalkAway, VITEK2 Blue, and BD Phoenix. [O3, 3, VP-, Suc-] was identified as Y. kristensenii in RAISUS S4, Microscan WalkAway, and VITEK2 Blue and as Y. enterocolitica in BD Phoenix. [O3, 3, VP-, Suc+], [O3, 4] and [O8, 1B] were identified as Y. enterocolitica. Therefore, when a sample was identified as Y. kristensenii by RAISUS S4, Microscan WalkAway, or VITEK2 Blue, the possibility that it was actually [O3, 3, VP-, Suc-] could not be ruled out. The possibility of Y. enterocolitica should be informed to attending physicians.
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Affiliation(s)
- Tomoko Ohno
- Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Daisuke Sakanashi
- Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Atsuko Yamada
- Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Mina Takayama
- Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Yuzuka Kawamoto
- Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Narimi Miyazaki
- Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Hiroyuki Suematsu
- Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Sumie Tida
- Department of Clinical Infectious Diseases, Aichi Medical University
| | - Akiko Nakamura
- Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Hirotoshi Oota
- Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Hiroshige Mikamo
- Department of Infection Control and Prevention, Aichi Medical University Hospital. Department of Clinical Infectious Diseases, Aichi Medical University
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Kawachi Y, Ogawa K, Osakabe M, Kawamoto Y, Isobe M, Ida K. Fast-sampling fast-ion D-alpha measurement using multi-anode photomultiplier tube in large helical device. Rev Sci Instrum 2023; 94:103505. [PMID: 37819204 DOI: 10.1063/5.0159175] [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: 05/21/2023] [Accepted: 09/20/2023] [Indexed: 10/13/2023]
Abstract
A fast-sampling fast-ion D-alpha (F-FIDA) measurement has been developed in the large helical device in order to investigate fast ion dynamics associated with helically trapped fast-ion-driven Magnetohydrodynamic (MHD) bursts. F-FIDA consists of a multi-anode photomultiplier tube (PMT) and achieves a sampling rate of 10 kHz. During the deuterium experiment campaign in 2022, F-FIDA measured the spectrum of perpendicular fast ions, using perpendicular lines of sight. We compared F-FIDA with conventional FIDA, using an electron multiplying charge coupled device, and confirmed that the time-averaged images were generally consistent between the two. The statistical properties of the temporal evolution associated with MHD bursts were analyzed using a conditional sampling technique. The results showed that the PMT signal varied in different spatial and wavelength channels. Although the signal-to-noise ratio was poor and there was room for improvement, it could provide useful information for studies on the phase-space dynamics of fast ions.
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Affiliation(s)
- Y Kawachi
- Department of Electronics, Kyoto Institute of Technology, Matsugasaki, Sakyo Ward, Kyoto 606-8585, Japan
| | - K Ogawa
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
- The Graduate University for Advanced Studies, SOKENDAI, Toki, Japan
| | - M Osakabe
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
- The Graduate University for Advanced Studies, SOKENDAI, Toki, Japan
| | - Y Kawamoto
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
- The Graduate University for Advanced Studies, SOKENDAI, Toki, Japan
| | - M Isobe
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
- The Graduate University for Advanced Studies, SOKENDAI, Toki, Japan
| | - K Ida
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
- The Graduate University for Advanced Studies, SOKENDAI, Toki, Japan
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Koizumi F, Katoh N, Kanehira T, Kawamoto Y, Nakamura T, Kakisaka T, Uchinami Y, Taguchi H, Fujita Y, Takahashi S, Higaki H, Nishioka K, Yasuda K, Kinoshita R, Suzuki R, Miyamoto N, Yokota I, Kobashi K, Aoyama H. A Risk Prediction Model for Severe Radiation Induced Lymphopenia in Patients with Pancreatic Cancer Treated with Concurrent Chemoradiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e309. [PMID: 37785118 DOI: 10.1016/j.ijrobp.2023.06.2334] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) In pancreatic cancer, radiation induced lymphopenia (RIL) is associated with a poor prognosis. However, normal tissue complication probability (NTCP) models predicting RIL in pancreatic cancer treated with concurrent chemoradiotherapy (CCRT) have yet to be developed. This study aims to develop a least absolute shrinkage and selection operator (LASSO)-based multivariate NTCP model to predict severe RIL in patients with pancreatic cancer during CCRT and to validate the model internally. MATERIALS/METHODS We retrospectively reviewed patients with localized pancreatic cancer who underwent CCRT using three-dimensional conformal radiation therapy from 2013 to 2021. The exclusion criteria were patients with distant metastasis; patients who did not complete RT due to tumor progression; patients who did not have absolute lymphocyte count (ALC) data available before or during RT. An ALC of < 0.5 K/μL during CCRT was defined as severe RIL. A NTCP model of severe RIL was developed by LASSO-based multivariate analysis. We used age, sex, Karnofsky performance status, maximum tumor size, carbohydrate antigen 19-9 level before RT, ALC before RT, volume of planning target volume (PTV), and dosimetric parameters for surrounding organs (including spleen, vertebrae, liver, bilateral kidneys, gastrointestinal tracts) as variables for LASSO. In addition, internal validation was performed by the bootstrap method. The predictive performance of the model was evaluated by the area under the curve (AUC) of the receiver operating characteristic curve and scaled Brier score. RESULTS Of the 131 patients included in the study, the median age was 68 years (range, 42-84), and 55% were male. The median ALC before RT was 1.37 K/µL (0.52-3.50). The median PTV volume was 315.4 ml (86.3-1079.3). The median dose of radiotherapy was 50.4 Gy (16.2-50.4), with 1.8 Gy per fraction. Combination chemotherapy was S-1 in 99 cases (75.6%) and gemcitabine in 32 cases (24.4%). Induction chemotherapy before CCRT was performed in 39 patients (29.8%). Severe RIL was observed in 84 (63.6%) patients. The LASSO showed that low baseline ALC (p = 0.0002), large PTV volume (p < 0.0001), and a large kidney V5 defined as the percentage of bilateral kidneys receiving 5 Gy or more (p = 0.0338) were selected as parameters of the prediction model for severe RIL (AUC = 0.917) and scaled Brier score was 0.511. As a result of internal validation by the bootstrap method, the average AUC was 0.918 (95% confidence interval, 0.849-0.954). CONCLUSION Severe RIL occurred frequently during CCRT for pancreatic cancer, and a NTCP model for severe RIL developed and validated internally in this study showed good predictive performance. External validation is needed before this NTCP model can be used as a benchmark for treatment planning to reduce the risk of severe RIL and for considering future treatment approaches.
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Affiliation(s)
- F Koizumi
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - N Katoh
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - T Kanehira
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - Y Kawamoto
- Division of Cancer Center, Hokkaido University Hospital, Sapporo, Japan
| | - T Nakamura
- Department of Gastroenterological Surgery Ⅱ, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - T Kakisaka
- Department of Gastroenterological Surgery Ⅰ, Hokkaido University Hospital, Sapporo, Japan
| | - Y Uchinami
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - H Taguchi
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Japan
| | - Y Fujita
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - S Takahashi
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - H Higaki
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - K Nishioka
- Global Center for Biomedical Science and Engineering, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - K Yasuda
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Japan
| | - R Kinoshita
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Japan
| | - R Suzuki
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - N Miyamoto
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - I Yokota
- Department of Biostatistics, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - K Kobashi
- Global Center for Biomedical Science and Engineering, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - H Aoyama
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
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Kimura K, Matsuura H, Itoh C, Kawamoto Y, Oishi T, Goto M, Ogawa K, Nishitani T, Isobe M, Osakabe M. Optimization of a fast deuterium diagnostic method based on visible energetic 3He spectroscopy for high electron density plasmas. Rev Sci Instrum 2023; 94:063502. [PMID: 37862490 DOI: 10.1063/5.0110088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 05/22/2023] [Indexed: 10/22/2023]
Abstract
Fast ions play a crucial role in plasma heating, and their behavior in the plasma must be accurately understood. A diagnostics method based on charge exchange emission from the n = 4 - 3 transition (λ0 = 468.6 nm) of energetic 3He produced by the deuteron-deuteron reaction has been proposed as a for fast deuterons with energies in the order of MeV. The proposed method has the following advantages: No beam emission interferes with the spectra, the direction of the measuring line of sight, and the injection angle of the diagnostic beam can be freely determined. In previous studies, due to competing bremsstrahlung, it was expected that the proposed method will not be practical in the case of high electron density operation. This paper makes the proposed method available for measurement even at high electron densities by optimizing the measurement line of sight direction and the diagnostic beam incidence angle. This allows an electron density five times larger than the range of applications shown in previous studies. This result will contribute to measure of DT alpha in ITER.
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Affiliation(s)
- K Kimura
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - H Matsuura
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - C Itoh
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - Y Kawamoto
- National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - T Oishi
- Department of Quantum Science and Energy Engineering, Tohoku University, 6-6-01-2 Aobayama, Sendai 980-8579, Japan
| | - M Goto
- National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, Japan
- Department of Fusion Science, The Graduate University for Advanced Studies, SOKENDAI, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - K Ogawa
- National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, Japan
- Department of Fusion Science, The Graduate University for Advanced Studies, SOKENDAI, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - T Nishitani
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - M Isobe
- National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, Japan
- Department of Fusion Science, The Graduate University for Advanced Studies, SOKENDAI, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - M Osakabe
- National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, Japan
- Department of Fusion Science, The Graduate University for Advanced Studies, SOKENDAI, 322-6 Oroshi-cho, Toki 509-5292, Japan
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Asai N, Shibata Y, Nakamura A, Suematsu H, Yamada A, Ohno T, Sakanashi D, Kawamoto Y, Miyazaki N, Koita I, Kato H, Hagihara M, Ohta H, Mikamo H. Three Successfully Treated Cases of Lodderomyces elongisporus Fungemia: Case Reports and a Review of the Literature. Microorganisms 2023; 11:microorganisms11041076. [PMID: 37110499 PMCID: PMC10142367 DOI: 10.3390/microorganisms11041076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/12/2023] [Accepted: 03/22/2023] [Indexed: 04/29/2023] Open
Abstract
Fungemia is a fatal systemic infection that can occur in immunocompromised patients. Despite that, antifungal stewardship is spreading widely, but the mortality rate is extremely high, showing 40-60%. Loderomyces elongiporus is a newly morphologically detected pathogen, first described in 1994, followed by isolation in humans in 2008. It has been misrecognized as Candida parapsilosis. Recently, fever attributable to L. elongisporus fungemia cases has been reported, and the etiology and clinical features are still unknown. Here, we present three successfully treated L. elongisporus fungemia cases by echinocandin. In total, 11 cases were reviewed, including ours. Six of the eleven cases (55%) had external devices. All cases had some immunocompromised conditions or underlying diseases, such as diabetes mellitus, lung cancer, etc. Six patients survived, and the remaining five died. Seven patients who had received echinocandin initially survived. Risk factors for L. elongiporus fungemia overlap with those of candidemia. Even though there is no breakpoint for L. elongiporus, echinocandin can be a helpful treatment regimen for L. elongiporus fungemia.
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Affiliation(s)
- Nobuhiro Asai
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Nagakute 480-1195, Japan
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute 480-1195, Japan
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yuichi Shibata
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Nagakute 480-1195, Japan
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute 480-1195, Japan
| | - Akiko Nakamura
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute 480-1195, Japan
| | - Hiroyuki Suematsu
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute 480-1195, Japan
| | - Atsuko Yamada
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute 480-1195, Japan
| | - Tomoko Ohno
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute 480-1195, Japan
| | - Daisuke Sakanashi
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute 480-1195, Japan
| | - Yuzuka Kawamoto
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute 480-1195, Japan
| | - Narimi Miyazaki
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute 480-1195, Japan
| | - Isao Koita
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute 480-1195, Japan
| | - Hideo Kato
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Nagakute 480-1195, Japan
- Department of Pharmacy, Mie University Hospital, Tsu 514-0001, Japan
- Department of Clinical Pharmaceutics, Division of Clinical Medical Science, Mie University Graduate School of Medicine, Tsu 514-0001, Japan
| | - Mao Hagihara
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Nagakute 480-1195, Japan
- Department of Molecular Epidemiology and Biomedical Sciences, Aichi Medical University, Nagakute 480-1195, Japan
| | - Hirotoshi Ohta
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute 480-1195, Japan
| | - Hiroshige Mikamo
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Nagakute 480-1195, Japan
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Nagakute 480-1195, Japan
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Kazahari N, Inoue E, Nakagawa N, Kawamoto Y, Uno T, Inoue-Murayama M. Genetic effects of demographic bottleneck and recovery in Kinkazan Island and mainland populations of Japanese macaques (Macaca fuscata). Primates 2023; 64:239-246. [PMID: 36806706 DOI: 10.1007/s10329-023-01050-3] [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: 01/31/2022] [Accepted: 01/12/2023] [Indexed: 02/23/2023]
Abstract
Populations of Japanese macaques were significantly reduced in most areas from the 1900s to the 1960s and then recovered mainly in the northeastern part of Honshu. A drastic reduction in population size reduces genetic variability through a bottleneck effect. Demographic expansion after the reduction that accumulates new mutations can reduce the bottleneck effects or drive the recovery of genetic variability. We examined the genetic status of a small island population (Kinkazan Island) and a larger mainland population (southern Tohoku) of Japanese macaques that experienced recent demographic bottlenecks and recovery using eight microsatellite loci. The two populations were significantly genetically different from each other. The Kinkazan population exhibited lower genetic variability, remarkable evidence of bottleneck (i.e., significant heterozygosity excess and lower frequency of rare alleles), and a considerably smaller effective population size based on genetic data than based on the current census size. These results indicate that the genetic status has not completely recovered from the demographic bottleneck despite a full recovery in census size on Kinkazan Island. New mutations might rarely have accumulated because of the small carrying capacity of the island. Therefore, the genetic variability of the population would have been restrained by the severe bottleneck size, small carrying capacity, and long-term isolation. On the other hand, the bottleneck effect seems to be limited in the southern Tohoku population considering higher genetic variability, non-significant heterozygosity excess in many mutation conditions, and the highest frequency of rare alleles.
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Affiliation(s)
- N Kazahari
- Wildlife Research Center, Kyoto University, 2-24 Tanaka-Sekiden-cho, Sakyo, Kyoto, 606-8203, Japan.
- Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Japan.
| | - E Inoue
- Faculty of Science, Toho University, Chiba, Japan
| | - N Nakagawa
- Graduate School of Science, Kyoto University, Kyoto, Japan
| | - Y Kawamoto
- Primate Research Institute, Kyoto University, Inuyama, Japan
- Laboratory of Wildlife Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Japan
| | - T Uno
- Tohoku, Monkey and Mammal Management Center, Sendai, Japan
| | - M Inoue-Murayama
- Wildlife Research Center, Kyoto University, 2-24 Tanaka-Sekiden-cho, Sakyo, Kyoto, 606-8203, Japan
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Yamamura T, Hatanaka K, Harada K, Kawamoto Y, Watanabe R, Nakamura T, Yuki S, Mitsuhashi T, Hatanaka Y, Komatsu Y. 1712P Usefulness of schlafen-11 expression level in cstage II/III esophageal squamous cell carcinoma. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1790] [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] Open
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Harada K, Yamamura T, Muto O, Nakamura M, Sogabe S, Sawada K, Nakano S, Yagisawa M, Muranaka T, Dazai M, Tateyama M, Ito K, Saito R, Kobayashi Y, Kato S, Miyagishima T, Kawamoto Y, Yuki S, Sakata Y, Sakamoto N, Komatsu Y. SO-30 Impact of single-heterozygous UGT1A1 on the clinical outcomes of nano-liposomal irinotecan plus 5-fluorouracil/leucovorin for patients with pancreatic ductal adenocarcinoma. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.429] [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] Open
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10
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Nakamura M, Ishiguro A, Dazai M, Kawamoto Y, Yuki S, Sogabe S, Hosokawa A, Sawada K, Muto O, Umemoto K, Izawa N, Nakashima K, Yagisawa M, Kajiura S, Mitsuhashi Y, Ando T, Sunakawa Y, Kikuchi Y, Yamanaka T, Komatsu Y. 499P The safety and efficacy of edoxaban for the cancer-associated asymptomatic venous thromboembolism in Japanese gastrointestinal cancer patients receiving chemotherapy (ExCAVE study). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1018] [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: 11/27/2022] Open
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11
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Yoshikawa A, Ito K, Yuki S, Kawamoto Y, Saito R, Yamamura T, Yagisawa M, Ishiguro A, Muto O, Hatanaka K, Okuda H, Sato A, Sasaki Y, Nakamura M, Sasaki T, Kobayashi T, Dazai M, Nakatsumi H, Ueda A, Sakata Y, Komatsu Y. P-79 HGCSG1901: A retrospective cohort study evaluating the safety and efficacy of S-1 and irinotecan plus bevacizumab in patients with metastatic colorectal cancer: Analysis of second-line treatment after anti-EGFR antibody. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.134] [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: 10/20/2022] Open
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12
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Kato K, Masuishi T, Fushiki K, Nakano S, Kawamoto Y, Narita Y, Tsushima T, Harada K, Kadowaki S, Todaka A, Yuki S, Tajika M, Machida N, Komatsu Y, Yasui H, Muro K, Kawakami T. Impact of tumor growth rate during preceding treatment on tumor response to nivolumab or irinotecan in advanced gastric cancer. ESMO Open 2021; 6:100179. [PMID: 34119801 PMCID: PMC8209093 DOI: 10.1016/j.esmoop.2021.100179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/12/2021] [Accepted: 05/16/2021] [Indexed: 11/28/2022] Open
Abstract
Background Nivolumab (NIVO) and irinotecan (IRI) are standard treatments for refractory advanced gastric cancer (AGC); however, it is unclear which drug should be administered first or in which cases. The tumor growth rate (TGR) during preceding treatment is reported to be associated with tumor response in metastatic colorectal cancer patients treated with regorafenib or trifluridine/tipiracil, suggesting that TGR may be useful for drug selection. Therefore, we evaluated the association between TGR during preceding treatment and the tumor response to NIVO or IRI. Patients and methods We retrospectively evaluated consecutive AGC patients treated with NIVO or IRI and divided them into slow-growing (Slow) and rapid-growing (Rapid) groups according to TGR and the presence or absence of new lesions (NL+/NL−, respectively) during preceding treatment (Slow group: NL− with low TGR <0.30%/day; Rapid group: NL+ or high TGR ≥0.30%/day). Results A total of 117 patients (Rapid/Slow groups, 72/45; NIVO/IRI groups, 32/85) were eligible. All baseline characteristics except peritoneal metastases were similar between patients treated with NIVO and IRI in the Rapid and Slow groups. The response rate was significantly higher in patients treated with NIVO compared with IRI [31%/3%; odds ratio (OR), 13.8; P = 0.01; adjusted OR, 52; P = 0.002] in the Slow group, but there was no difference between patients treated with NIVO and IRI (5%/8%; OR, 0.68; P = 0.73; adjusted OR, 0.94; P = 0.96) in the Rapid group. Disease control rate, progression-free survival, and overall survival were consistent with these results. Conclusions Our findings suggest that NIVO treatment is a more favorable option for patients with slow-growing tumors, and NIVO and IRI are similarly recommended for patients with rapid-growing tumors in refractory AGC. TGR and NL emergence during preceding treatment may be helpful for drug selection and warrant further investigation. NIVO and IRI are standard treatments for refractory AGC, although it is unclear which should be administered first. TGR may be useful for drug selection, therefore we evaluated the association between TGR and the tumor response to NIVO or IRI. In the Slow group, the response rate (RR) was significantly higher in patients treated with NIVO compared with IRI. In the Rapid group, there was no significant difference in RR between the NIVO and IRI groups. TGR and NL emergence during preceding treatment may be useful for drug selection.
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Affiliation(s)
- K Kato
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - T Masuishi
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan.
| | - K Fushiki
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - S Nakano
- Cancer Center, Hokkaido University Hospital, Sapporo, Japan
| | - Y Kawamoto
- Cancer Center, Hokkaido University Hospital, Sapporo, Japan
| | - Y Narita
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - T Tsushima
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - K Harada
- Department of Gastroenterology and Hepatology, Hokkaido University Hospital, Sapporo, Japan
| | - S Kadowaki
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - A Todaka
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - S Yuki
- Department of Gastroenterology and Hepatology, Hokkaido University Hospital, Sapporo, Japan
| | - M Tajika
- Department of Endoscopy, Aichi Cancer Center Hospital, Nagoya, Japan
| | - N Machida
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - Y Komatsu
- Cancer Center, Hokkaido University Hospital, Sapporo, Japan
| | - H Yasui
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - K Muro
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - T Kawakami
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan
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Kimura K, Matsuura H, Kawamoto Y, Oishi T, Goto M, Ogawa K, Nishitani T, Isobe M, Osakabe M. Fast deuteron diagnostics using visible light spectra of 3He produced by deuteron-deuteron reaction in deuterium plasmas. Rev Sci Instrum 2021; 92:053524. [PMID: 34243281 DOI: 10.1063/5.0034683] [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: 10/22/2020] [Accepted: 04/23/2021] [Indexed: 06/13/2023]
Abstract
The fast deuteron (non-Maxwellian component) diagnostic method, which is based on the higher resolution optical spectroscopic measurement, has been developed as a powerful tool. Owing to a decrease in the D-H charge-exchange cross section, the diagnostic ability of conventional optical diagnostic methods should be improved for ∼MeV energy deuterons. Because the 3He-H charge-exchange cross section is much larger than that of D-H in the ∼MeV energy range, the visible light (VIS) spectrum of 3He produced by the dueteron-dueteron (DD) reaction may be a useful tool. Although the density of 3He is small because it is produced via the DD reaction, improvement of the emissivity of the VIS spectrum of 3He can be expected by using a high-energy beam. We evaluate the VIS spectrum of 3He for the cases when a fast deuteron tail is formed and not formed in the ITER-like beam injected deuterium plasma. Even when the beam energy is in the MeV energy range, a large change appears in the half width at half maximum of the VIS spectrum. The emissivity of the VIS spectrum of 3He and the emissivity of bremsstrahlung are compared, and the measurable VIS spectrum is obtained. It is shown that the VIS spectrum of 3He is a useful tool for the MeV beam deuteron tail diagnostics.
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Affiliation(s)
- K Kimura
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - H Matsuura
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - Y Kawamoto
- National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - T Oishi
- National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - M Goto
- National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - K Ogawa
- National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - T Nishitani
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - M Isobe
- National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - M Osakabe
- National Institute for Fusion Science, National Institutes of Natural Sciences, 322-6 Oroshi-cho, Toki 509-5292, Japan
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14
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Asai N, Sakanashi D, Ohashi W, Nakamura A, Kawamoto Y, Miyazaki N, Ohno T, Yamada A, Chida S, Shibata Y, Kato H, Shiota A, Hagihara M, Koita I, Yamagishi Y, Suematsu H, Ohta H, Mikamo H. Efficacy and validity of automated quantitative chemiluminescent enzyme immunoassay for SARS-CoV-2 antigen test from saliva specimen in the diagnosis of COVID-19. J Infect Chemother 2021; 27:1039-1042. [PMID: 33840598 PMCID: PMC8017492 DOI: 10.1016/j.jiac.2021.03.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 02/12/2021] [Revised: 03/16/2021] [Accepted: 03/29/2021] [Indexed: 02/08/2023]
Abstract
INTRODUCTION The pandemic of a novel coronavirus disease 2019 (COVID-19) caused by a severe acute respiratory coronavirus 2 (SARS-CoV-2) infection has been problematic worldwide. A new SARS-CoV-2 antigen test (LUMIPULSEⓇ) was licensed and widely used in Japan since May 2020. We conducted this study intending to whether the automated quantitative CLEIA antigen test using a saliva sample is effective and valid for the diagnosis of COVID-19. PATIENTS AND METHODS We analyzed and compared the diagnostic accuracy of both the automated quantitative CLEIA antigen test and real-time RT-PCR (rRT-PCR) using a saliva sample from individuals suspected as having COVID-19. RESULTS A total of 305 samples were collected and tested in Aichi Medical University Hospital and affiliated facilities from December 2020 until January 2021 at our institute. Using reverse-transcription PCR as a reference, the AUROC of the automated quantitative CLEIA antigen test was 0.903 (95% confidential interval 0.845-0.962, p < 0.001). The appropriate cut-off antigen level was 4.0 pg/mL and had a sensitivity of 77.8%, a specificity of 99.6%, a positive predictive value of 98%, and a negative predictive value of 94.5%. On the other hand, the diagnostic accuracy of the antigen test decreased among patients among patients with COVID-19 with threshold cycle (Ct-value)≥27, which shows the AUROC was 0.795 (95%CI 0.687-0.907, p < 0.001). CONCLUSION While the automated quantitative CLEIA antigen test from saliva specimen could be one of the most useful diagnostic tests for the diagnosis of COVID-19 in general practice, clinicians should know the limitations of the antigen test.
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Affiliation(s)
- Nobuhiro Asai
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan; Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Daisuke Sakanashi
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Wataru Ohashi
- Division of Biostatistics, Clinical Research Center, Aichi Medical University Hospital, Japan
| | - Akiko Nakamura
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Yuzuka Kawamoto
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Narimi Miyazaki
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Tomoko Ohno
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Atsuko Yamada
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Sumie Chida
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Yuichi Shibata
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Hideo Kato
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Arufumi Shiota
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Mao Hagihara
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan; Department of Molecular Epidemiology and Biomedical Sciences, Aichi Medical University, Aichi, Japan
| | - Isao Koita
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Yuka Yamagishi
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Hiroyuki Suematsu
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Hirotoshi Ohta
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Hiroshige Mikamo
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan.
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Murakami I, Kato D, Oishi T, Goto M, Kawamoto Y, Suzuki C, Sakaue H, Morita S. Progress of tungsten spectral modeling for ITER edge plasma diagnostics based on tungsten spectroscopy in LHD. Nuclear Materials and Energy 2021. [DOI: 10.1016/j.nme.2021.100923] [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: 10/22/2022]
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Sakanashi D, Asai N, Nakamura A, Miyazaki N, Kawamoto Y, Ohno T, Yamada A, Koita I, Suematsu H, Hagihara M, Shiota A, Kurumiya A, Sakata M, Kato S, Muramatsu Y, Koizumi Y, Kishino T, Ohashi W, Yamagishi Y, Mikamo H. Comparative evaluation of nasopharyngeal swab and saliva specimens for the molecular detection of SARS-CoV-2 RNA in Japanese patients with COVID-19. J Infect Chemother 2020; 27:126-129. [PMID: 33060046 PMCID: PMC7524660 DOI: 10.1016/j.jiac.2020.09.027] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [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: 05/01/2020] [Revised: 08/25/2020] [Accepted: 09/24/2020] [Indexed: 11/16/2022]
Abstract
Considering the issues of shortage of medical resources and the invasiveness and infection risk involved in the collection of nasopharyngeal swab specimens, there is a need for an effective alternative test specimen for SARS-CoV-2 RNA detection. Here, we investigated suitability of saliva as a non-invasively obtained specimen for molecular detection of SARS-CoV-2 RNA in Japanese patients with COVID-19. In total, 28 paired clinical specimens of saliva and nasopharyngeal swabs were collected from 12 patients at various time points after symptom onset. Each specimen was assayed using reverse transcription real-time polymerase chain reaction (rRT-PCR) on the BD MAX open system using primers and probes targeting the N-gene. The saliva and nasopharyngeal swab specimens showed 19 and 15 positive results, respectively. No invalid (PCR inhibition) result was observed for any specimen. The qualitative results of each specimen obtained in the period immediately after symptom onset were similar. Three convalescent patients presented saliva-positive results, whereas their nasopharyngeal swabs were negative at four different time points, suggesting that saliva may be superior to nasopharyngeal swabs in terms of obtaining stable assay result of SARS-CoV-2. In conclusion, our results suggest that saliva can potentially serve as an alternative to nasopharyngeal swabs as a specimen for SARS-CoV-2 rRT-PCR. As saliva can be collected by patients themselves, it may be an effective way to overcome the shortage of personal protective equipment and specimen sampling tools.
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Affiliation(s)
- Daisuke Sakanashi
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Nobuhiro Asai
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan; Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Japan
| | - Akiko Nakamura
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Narimi Miyazaki
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Yuzuka Kawamoto
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Tomoko Ohno
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Atsuko Yamada
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Isao Koita
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Hiroyuki Suematsu
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Mao Hagihara
- Department of Molecular Epidemiology and Biomedical Sciences, Aichi Medical University, Japan
| | - Arufumi Shiota
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Ai Kurumiya
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Miki Sakata
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Syunji Kato
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Yuki Muramatsu
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Yusuke Koizumi
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan; Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Japan
| | - Takaaki Kishino
- Department of Emergency and Critical Care Medicine, Aichi Medical University Hospital, Japan
| | - Wataru Ohashi
- Division of Biostatistics, Clinical Research Center, Aichi Medical University Hospital, Japan
| | - Yuka Yamagishi
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan; Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Japan
| | - Hiroshige Mikamo
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan; Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Japan.
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Asai N, Sakanashi D, Ohashi W, Nakamura A, Yamada A, Kawamoto Y, Miyazaki N, Ohno T, Koita I, Suematsu H, Kishino T, Kato H, Hagihara M, Shiota A, Koizumi Y, Yamagishi Y, Mikamo H. Could threshold cycle value correctly reflect the severity of novel coronavirus disease 2019 (COVID-19)? J Infect Chemother 2020; 27:117-119. [PMID: 32994136 PMCID: PMC7480734 DOI: 10.1016/j.jiac.2020.09.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 06/20/2020] [Revised: 08/26/2020] [Accepted: 09/04/2020] [Indexed: 01/01/2023]
Abstract
The novel coronavirus disease 2019 (COVID-19) is diagnosed by positive result of reverse transcription polymerase chain reaction (RT-PCR) for the novel coronavirus. We concluded that cycle threshold value (Ct-value) of real-time RT-PCR (rRT-PCR) assay could decrease as patients recover. Results of rRT-PCR assay could remain positive among asymptomatic patients for longer than 2 weeks. The discharge criteria of COVID-19 patients using a negative result of rRT-PCR should be reconsidered.
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Affiliation(s)
- Nobuhiro Asai
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Daisuke Sakanashi
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Wataru Ohashi
- Division of Biostatistics, Clinical Research Center, Aichi Medical University Hospital, Japan
| | - Akiko Nakamura
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Atsuko Yamada
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Yuzuka Kawamoto
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Narimi Miyazaki
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Tomoko Ohno
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Isao Koita
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Hiroyuki Suematsu
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Takaaki Kishino
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Emergency and Critical Care Medicine, Aichi Medical University Hospital, Japan
| | - Hideo Kato
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; University of Queensland Centre for Clinical Research, The University of Queensland, Royal Brisbane & Women's Hospital, Brisbane, QLD, Australia
| | - Mao Hagihara
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Molecular Epidemiology and Biomedical Sciences, Aichi Medical University, Aichi, Japan
| | - Arufumi Shiota
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Yusuke Koizumi
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Yuka Yamagishi
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan
| | - Hiroshige Mikamo
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan; Department of Infection Control and Prevention, Aichi Medical University Hospital, Japan.
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Ito K, Harada K, Kawamoto Y, Nakatsumi H, Nakano S, Saito R, Yamamura T, Yuki S, Sakamoto N, Komatsu Y. 1632P Regorafenib is associated with increased skeletal muscle loss in gastrointestinal stromal tumor. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Shindo Y, Nakatsumi H, Yuki S, Kawamoto Y, Muto O, Dazai M, Harada K, Kobayashi Y, Sogabe S, Katagiri M, Kotaka M, Nakamura M, Hatanaka K, Ishiguro A, Tsuji Y, Kobayashi T, Tateyama M, Sasaki Y, Sasaki T, Takagi R, Sakata Y, Komatsu Y. P-112 HGCSG1801: A phase II trial of 2nd-line FOLFIRI plus aflibercept in patients with metastatic colorectal cancer refractory to anti-EGFR antibody. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Harada K, Nakano S, Saito R, Ito K, Kawamoto Y, Nakatsumi H, Yuki S, Sakamoto N, Komatsu Y. P-111 Prognostic value of inflammation-based scores for patients treated with FOLFIRINOX or gemcitabine plus nab-paclitaxel. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Ando T, Ito K, Yuki S, Saito R, Nakano S, Nakatsumi H, Kawamoto Y, Dazai M, Miyashita K, Hatanaka K, Harada K, Miyagishima T, Hisai H, Ishiguro A, Ueda A, Kato T, Sasaki T, Shindo Y, Yokota I, Takagi R, Sakata Y, Komatsu Y. P-98 HGCSG1902: Multicenter, prospective, observational study for cases with dysgeusia caused by chemotherapy for gastrointestinal cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.180] [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] Open
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Hori H, Matsuo J, Teraishi T, Sasayama D, Kawamoto Y, Kinoshita Y, Ota M, Hattori K, Kunugi H. Moderating effect of schizotypy on the relationship between smoking and neurocognition. Eur Psychiatry 2020. [DOI: 10.1016/j.eurpsy.2012.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
AbstractPurposeSmoking rates in schizotypic individuals are shown to be elevated, as in patients with schizophrenia, although findings on the association of smoking with different symptomatology of schizotypy have been mixed. Moreover, possible moderating effects of schizotypy on the relationship between smoking and cognition have not been well documented.Subjects and methodsThe Schizotypal Personality Questionnaire (SPQ) and the full version of the Wechsler Memory Scale-Revised (WMS-R) were administered to 501 healthy adults. Subjects were divided into smokers (n = 85) and non-smokers (n = 416) based on the presence/absence of current smoking.ResultsThe analysis of covariance (ANCOVA) on the three factor scores as well as the total score of the SPQ, controlling for age and gender, revealed that cognitive-perceptual factor was significantly associated with an increased rate of smoking (P = 0.048). The ANCOVA on the WMS-R indices, with smoking group as a fixed factor and age, gender and total SPQ score as covariates, revealed that the schizotypy-by-smoking interaction was significant for attention/working memory (P = 0.029).Discussion and conclusionPositive schizotypy may be associated with more smoking. Schizotypy and smoking could interact with each other to negatively affect attention/working memory.
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Ohno T, Suematsu H, Nakamura A, Kawamoto Y, Miyazaki N, Sakanashi D, Yamada A, Koita I, Watanabe H, Asai N, Koizumi Y, Yamagishi Y, Mikamo H. [Performance Evaluation of "BinaxNOW™ Streptococcus pneumoniae" Using Alere™ Reader]. Rinsho Biseibutshu Jinsoku Shindan Kenkyukai Shi 2019; 29:11-17. [PMID: 31856573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Streptococcus pneumoniae is one of the major bacterial pathogens of community-acquired pneumonia. Immunochromatographic assay tests are used to detect pneumococcal capsular antigen. In many cases, They can be read visually. The Alere™ reader (Reader), which was developed in October 2018 by Alere Medical Co., Ltd. (currently, Abbott Diagnostics Medical Co., Ltd.) for interpreting BinaxNOW™ Streptococcus pneumoniae test (BinaxNOW™), quickly displays the results of the immunochromatographic tests, objectively and accurately, as it was launched for the purpose of streamlining laboratory workflow. The performance of the reader was evaluated by using urine samples from 100 patients, who were ordered pneumococcal urine antigen test from September 2018 to February 2019 at our hospital. Of the 100 samples, 14 were visually positive and 19 were reader positive. All visually positive samples generated reader positive result. Because 1 of the 5 cases which indicated a negative visual determination and positive reader determination was a sample with strong viscosity and turbidity, it was retested after centrifugation at 3,000×g for 10 min, resulting in negative reader determination. In 2 cases, S. pneumoniae were detected in sputum gram stains and culture tests. 5 discrepant samples were all visually and reader positive after concentration by centrifugal ultrafiltration. A questionnaire about visual interpretation was conducted among 31 individuals, by using urine from day 0 to day 4 collected from the patients whose test result was visually negative, reader positive and sputum culture positive at day 0. As a result, the number of operators who determined visually positive was 0 on day 0 (0%), 16 on day 1 (51.6%), 13 on day 2 (41.9%), 2 on day 3 (6.5%), and 0 on day 4 (0%). There were individual differences in ability to interpret low level positive result visually. On the other hand, reader can remove individual differences among operators from the interpretation of BinaxNOW™ and interpret positive result earlier than visual interpretation. Therefore reader was considered to be useful tool in clinical settings.
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Affiliation(s)
- Tomoko Ohno
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan
| | - Hiroyuki Suematsu
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan
| | - Akiko Nakamura
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan
| | - Yuzuka Kawamoto
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan
| | - Narimi Miyazaki
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan
| | - Daisuke Sakanashi
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan
| | - Atsuko Yamada
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan
| | - Isao Koita
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan
| | - Hiroki Watanabe
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan
| | - Nobuhiro Asai
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan
| | - Yusuke Koizumi
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan
| | - Yuka Yamagishi
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan. Department of Clinical Infectious Diseases, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan
| | - Hiroshige Mikamo
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan. Department of Clinical Infectious Diseases, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan
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Morizane C, Okusaka T, Mizusawa J, Katayama H, Ueno M, Ikeda M, Ozaka M, Okano N, Sugimori K, Fukutomi A, Hara H, Mizuno N, Yanagimoto H, Wada K, Tobimatsu K, Yane K, Nakamori S, Yamaguchi H, Asagi A, Yukisawa S, Kojima Y, Kawabe K, Kawamoto Y, Sugimoto R, Iwai T, Nakamura K, Miyakawa H, Yamashita T, Hosokawa A, Ioka T, Kato N, Shioji K, Shimizu K, Nakagohri T, Kamata K, Ishii H, Furuse J. Combination gemcitabine plus S-1 versus gemcitabine plus cisplatin for advanced/recurrent biliary tract cancer: the FUGA-BT (JCOG1113) randomized phase III clinical trial. Ann Oncol 2019; 30:1950-1958. [PMID: 31566666 DOI: 10.1093/annonc/mdz402] [Citation(s) in RCA: 161] [Impact Index Per Article: 32.2] [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] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Gemcitabine plus cisplatin (GC) is the standard treatment of advanced biliary tract cancer (BTC); however, it causes nausea, vomiting, and anorexia, and requires hydration. Gemcitabine plus S-1 (GS) reportedly has equal to, or better, efficacy and an acceptable toxicity profile. We aimed to confirm the non-inferiority of GS to GC for patients with advanced/recurrent BTC in terms of overall survival (OS). PATIENTS AND METHODS We undertook a phase III randomized trial in 33 institutions in Japan. Eligibility criteria included chemotherapy-naïve patients with recurrent or unresectable BTC, an Eastern Cooperative Oncology Group Performance Status of 0 - 1, and adequate organ function. The calculated sample size was 350 with a one-sided α of 5%, a power of 80%, and non-inferiority margin hazard ratio (HR) of 1.155. The primary end point was OS, while the secondary end points included progression-free survival (PFS), response rate (RR), adverse events (AEs), and clinically significant AEs defined as grade ≥2 fatigue, anorexia, nausea, vomiting, oral mucositis, or diarrhea. RESULTS Between May 2013 and March 2016, 354 patients were enrolled. GS was found to be non-inferior to GC [median OS: 13.4 months with GC and 15.1 months with GS, HR, 0.945; 90% confidence interval (CI), 0.78-1.15; P = 0.046 for non-inferiority]. The median PFS was 5.8 months with GC and 6.8 months with GS (HR 0.86; 95% CI 0.70-1.07). The RR was 32.4% with GC and 29.8% with GS. Both treatments were generally well-tolerated. Clinically significant AEs were observed in 35.1% of patients in the GC arm and 29.9% in the GS arm. CONCLUSIONS GS, which does not require hydration, should be considered a new, convenient standard of care option for patients with advanced/recurrent BTC. CLINICAL TRIAL NUMBER This trial has been registered with the UMIN Clinical Trials Registry (http://www.umin.ac.jp/ctr/index.htm), number UMIN000010667.
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Affiliation(s)
- C Morizane
- Department of Hepatobiliary and Pancreatic Oncology, Tokyo.
| | - T Okusaka
- Department of Hepatobiliary and Pancreatic Oncology, Tokyo
| | - J Mizusawa
- JCOG Data Center/Operations Office, National Cancer Center Hospital, Tokyo
| | - H Katayama
- JCOG Data Center/Operations Office, National Cancer Center Hospital, Tokyo
| | - M Ueno
- Department of Gastroenterology, Hepatobiliary and Pancreatic Medical Oncology Division, Kanagawa Cancer Center, Yokohama
| | - M Ikeda
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa
| | - M Ozaka
- Hepato-Biliary-Pancreatic Medicine Department, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo
| | - N Okano
- Department of Medical Oncology, Kyorin University Faculty of Medicine, Tokyo
| | - K Sugimori
- Gastroenterological Center, Yokohama City University Medical Center, Yokohama
| | - A Fukutomi
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka
| | - H Hara
- Department of Gastroenterology, Saitama Cancer Center, Saitama
| | - N Mizuno
- Department of Gastroenterology, Aichi Cancer Center Hospital, Nagoya
| | - H Yanagimoto
- Department of Surgery, Kansai Medical University Hospital, Hirakata
| | - K Wada
- Department of Surgery, Teikyo University School of Medicine, Tokyo
| | - K Tobimatsu
- Division of Gastroenterology, Department of Internal Medicine Kobe University Graduate School of Medicine, Kobe
| | - K Yane
- Center for Gastroenterology, Teine Keijinkai Hospital, Sapporo
| | - S Nakamori
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka
| | - H Yamaguchi
- Department of Clinical Oncology, Jichi Medical University, Shimotsuke
| | - A Asagi
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Matsuyama
| | - S Yukisawa
- Department of Medical Oncology, Tochigi Cancer Center, Utsunomiya
| | - Y Kojima
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo
| | - K Kawabe
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - Y Kawamoto
- Department of Gastroenterology and Hepatology, Hokkaido University Hospital, Sapporo
| | - R Sugimoto
- Department of Hepato-Biliary-Pancreatology, National Hospital Organization Kyushu Cancer Center, Fukuoka
| | - T Iwai
- Department of Gastroenterology, Kitasato University Hospital, Sagamihara
| | - K Nakamura
- Division of Gastroenterology, Chiba Cancer Center, Chiba
| | - H Miyakawa
- Department of Bilio-Pancreatology, Sapporo Kousei General Hospital, Sapporo
| | - T Yamashita
- Department of Gastroenterology, Kanazawa University, Kanazawa
| | - A Hosokawa
- Department of Gastroenterology and Hematology, University of Toyama, Faculty of Medicine, Toyama
| | - T Ioka
- Department of Cancer Survey and Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka
| | - N Kato
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba
| | - K Shioji
- Department of Internal medicine, Niigata Cancer Center Hospital, Niigata
| | - K Shimizu
- Department of Gastroenterology, Tokyo Women's Medical University, Tokyo
| | - T Nakagohri
- Gastroenterological Surgery, Tokai University School of Medicine, Isehara
| | - K Kamata
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka
| | - H Ishii
- Clinical Research Center, Chiba Cancer Center, Chiba, Japan
| | - J Furuse
- Department of Medical Oncology, Kyorin University Faculty of Medicine, Tokyo
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Sasaki T, Nakano S, Yuki S, Sawada K, Muranaka T, Kawamoto Y, Nakatsumi H, Ando T, Yoshita H, Harada K, Kobayashi Y, Miyagishima T, Hatanaka K, Tanimoto A, Ishiguro A, Honda T, Dazai M, Komatsu Y. The comparison between UGT1A1 single heterozygous and wild type regarding the clinical outcomes of fixed dose irinotecan monotherapy for advanced gastric cancer: Multicenter retrospective study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz422.043] [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: 11/15/2022] Open
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26
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Sasaki Y, Muranaka T, Kawamoto Y, Sawada K, Nakatsumi H, Harada K, Miyagishima T, Hatanaka K, Dazai M, Ueda A, Sasaki T, Shinada K, Tsuji Y, Yuki S, Sakamoto N, Nishimoto N, Sakata Y, Komatsu Y. Multi-centered phase II trial of weekly 5-FU plus l-LV regimen as salvage line chemotherapy for oral fluorouracil resistant advanced gastric cancer (HGCSG1502). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz422.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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27
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Nakamura M, Yuki S, Takahashi N, Shichinohe T, Nakatsumi H, Kawamoto Y, Kusumi T, Ishiguro A, Harada K, Iwanaga I, Hatanaka K, Oomori K, Senmaru N, Iwai K, Koike M, Sakamoto N, Taketomi A, Hirano S, Nishimoto N, Komatsu Y. NORTH/HGCSG1003: North Japan multicenter phase II study of oxaliplatin-containing regimen as adjuvant chemotherapy for stage III colon cancer: Final analysis. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz421.016] [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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28
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Honda T, Nakano S, Yuki S, Sawada K, Muranaka T, Kawamoto Y, Nakatsumi H, Yoshita H, Ando T, Harada K, Kobayashi Y, Miyagishima T, Hatanaka K, Tanimoto A, Ishiguro A, Dazai M, Sasaki T, Komatsu Y. A retrospective multicenter study evaluating the efficacy and safety of irinotecan in patients with advanced gastric cancer: Analysis of Glasgow Prognostic Score (GPS). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz422.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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29
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Kawakami T, Masuishi T, Kawamoto Y, Go H, Shirasu H, Kato K, Kumanishi R, Sawada K, Yamamoto K, Yuki S, Komatsu Y, Yasui H, Muro K, Yamanaka T, Yamazaki K. The impact of late-line treatment on overall survival (OS) from the initiation of first-line chemotherapy (CT) for patients (pts) with metastatic colorectal cancer (mCRC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz246.064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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30
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Kawamoto Y, Nakamura Y, Ikeda M, Bando H, Esaki T, Ueno M, Nishina T, Kagawa Y, Oki E, Denda T, Mizukami T, Takahashi N, Okano N, Miki I, Sakamoto Y, Lefterova M, Odegaard J, Taniguchi H, Morizane C, Yoshino T. Biological difference of tumour mutational burden (TMB) and microsatellite instability (MSI) status in patients (pts) with somatic vs germline BRCA1/2-mutated advanced gastrointestinal (GI) cancers using cell-free DNA (cfDNA) sequencing analysis in the GOZILA study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz239.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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31
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Ishiguro A, Yuki S, Takahashi N, Shichinohe T, Nakatsumi H, Kawamoto Y, Kusumi T, Harada K, Iwanaga I, Hatanaka K, Oomori K, Nakamura M, Senmaru N, Iwai K, Koike M, Sakamoto N, Taketomi A, Hirano S, Ito Y, Komatsu Y. North Japan multicenter phase II study of oxaliplatin-containing regimen as adjuvant chemotherapy for stage III colon cancer: final analysis (NORTH/HGCSG1003). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.089] [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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32
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Harada K, Nakano S, Yuki S, Sawada K, Muranaka T, Kawamoto Y, Nakatsumi H, Yoshita H, Ando T, Kobayashi Y, Miyagishima T, Hatanaka K, Tanimoto A, Ishiguro A, Honda T, Dazai M, Sasaki T, Komatsu Y. A retrospective multicenter study evaluating the efficacy and safety of irinotecan in patients with advanced gastric cancer: analysis of Glasgow prognostic score (GPS). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.151] [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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Nakatsumi H, Komatsu Y, Saito R, Ito K, Nakano S, Kawamoto Y, Yuki S, Sakamoto N. Retrospective analysis of the efficacy and safety of regorafenib in patients with advanced GIST. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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34
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Sunakawa Y, Nakamura M, Ishizaki M, Kataoka M, Satake H, Kitazono M, Yanagisawa H, Kawamoto Y, Kuramochi H, Ohori H, Nakamura M, Takahashi K, Maeda F, Komeno C, Takeuchi M, Fujii M, Yoshino T, Ichikawa W, Tsuji A. RAS mutations in circulating tumor DNA (ctDNA) and clinical outcomes of rechallenge treatments with anti-EGFR antibodies in patients with metastatic colorectal cancer (mCRC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz156.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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35
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Ueda A, Muranaka T, Kawamoto Y, Sawada K, Nakatsumi H, Harada K, Kobayashi Y, Miyagishima T, Hatanaka K, Dazai M, Kawahata S, Sasaki T, Sasaki Y, Kato S, Shinada K, Tsuji Y, Yuki S, Sakamoto N, Nishimoto N, Sakata Y, Komatsu Y. Multicenter phase 2 trial of weekly 5-FU plus l-LV regimen as salvage line chemotherapy for oral fluorouracil-resistant advanced gastric cancer (HGCSG1502). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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36
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Ando T, Nakano S, Yuki S, Sawada K, Muranaka T, Kawamoto Y, Nakatsumi H, Yoshita H, Harada K, Kobayashi Y, Miyagishima T, Hatanaka K, Tanimoto A, Ishiguro A, Honda T, Sasaki T, Dazai M, Komatsu Y. The comparison between UGT1A1 single heterozygous and wild-type regarding the clinical outcomes of fixed-dose irinotecan monotherapy for advanced gastric cancer: a multicenter retrospective study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.010] [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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37
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Sakanashi D, Miyazaki N, Kawamoto Y, Ohno T, Yamada A, Koita I, Suematsu H, Hagihara M, Asai N, Koizumi Y, Yamagishi Y, Mikamo H. A novel disk-based detection method with superior sensitivity for β-lactamase production in third-generation cephalosporin-resistant Enterobacteriaceae. J Infect Chemother 2019; 25:330-336. [PMID: 30797690 DOI: 10.1016/j.jiac.2018.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 12/18/2018] [Accepted: 12/21/2018] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Current phenotypic methods for extended-spectrum β-lactamase (ESBL), AmpC β-lactamase (AmpC), and carbapenemases fail to detect isolates that co-produce other classes of β-lactamases. In this study, we have developed a novel assay (Applied Multiplex Disk Method: AMU-DM) for the phenotypic detection and identification of β-lactamases produced by Enterobacteriaceae. METHODS We evaluated the performance of the method by comparison with PCR results for 78 Enterobacteriaceae clinical isolates that were positive by the ESBL screening test and negative by the ESBL confirmation test. Additionally, one NCTC strain and four ATCC strains were also included in the test population for the study as reference. RESULTS For 79/83 (95%) isolates tested, the AMU-DM results matched those obtained by PCR. The concordance rates were 31/31 (100%), 11/11 (100%), 3/3 (100%), 0/1 (0%), 15/15 (100%), 16/19 (84%), and 3/3 (100%) for AmpC, ESBL and AmpC co-production, Klebsiella pneumoniae carbapenemase (KPC), KPC and ESBL co-production, metallo β-lactamase (MBL), MBL and ESBL co-production, and MBL and AmpC co-production, respectively. CONCLUSION The AMU-DM is convenient to perform, economical, and highly sensitive in identifying ESBLs, AmpCs, and carbapenemases. Our method may be useful in clinical settings for the implementation of relevant infection control measures and for surveillance purposes.
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Affiliation(s)
- Daisuke Sakanashi
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Narimi Miyazaki
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Yuzuka Kawamoto
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Tomoko Ohno
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Atsuko Yamada
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Isao Koita
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Hiroyuki Suematsu
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan
| | - Mao Hagihara
- Department of Molecular Epidemiology and Biomedical Sciences, Aichi Medical University, Japan
| | - Nobuhiro Asai
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan; Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Japan
| | - Yusuke Koizumi
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan; Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Japan
| | - Yuka Yamagishi
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan; Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Japan
| | - Hiroshige Mikamo
- Department of Infection Control and Prevention, Aichi Medical University Hospital, Aichi, Japan; Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Japan.
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Ohno T, Suematsu H, Yamagishi Y, Miyazaki N, Yamada A, Kawamoto Y, Sakanashi D, Koita I, Mikamo H. [Is BC-GN applicable for analysis of strains and urine/sputum specimens?]. Rinsho Biseibutshu Jinsoku Shindan Kenkyukai Shi 2018; 28:91-99. [PMID: 30630335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
As the reagent that can simultaneously detect bacterial nucleic acid/drug-resistant genes from the culture-positive liquid of blood cultures, Verigene® system includes the Verigene® Gram-Positive Blood Culture test (BC-GP) and the Verigene® Gram Negative Blood Culture test (BC-GN). This study used BC-GN to identify the names of bacteria from stock strains, urine samples, and sputum specimens and detect drug-resistant genes. The stock strains included 28 clinical isolates, 9 urine samples in which the target bacterial strain grew to 106CFU/ml or more in culture, and 9 sputum specimens in which the target bacterial strain grew to 105CFU/ml or more in culture. The bacterial identification and detection of drug-resistant genes used quality Matrix Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry (MALDI-TOF MS) analysis and conventional PCR method, respectively, followed in comparison with the results of Verigene®. As a result, the measurement results of Verigene® for the stock strains and urine samples had a high concordance rate with MALDI-TOF MS analysis and PCR method. On the other hand, the concordance rate of the sputum specimens with the Verigene® measurement results was only 40% (4 out of 10 specimens). These results suggest that BC‒GN can be an effective tool for AMR rapid diagnosis if the measurement target includes not only bacterial strains in the culture-positive liquid of blood cultures, but also other bacterial strains and urine.
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Affiliation(s)
- Tomoko Ohno
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Hiroyuki Suematsu
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Yuka Yamagishi
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital. Department of Clinical Infectious Diseases, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute-city, Aichi 480-1195, Japan
| | - Narimi Miyazaki
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Atsuko Yamada
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Yuzuka Kawamoto
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Daisuke Sakanashi
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Isao Koita
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital
| | - Hiroshige Mikamo
- Division of Microbiological Laboratory, Department of Infection Control and Prevention, Aichi Medical University Hospital. Department of Clinical Infectious Diseases, Aichi Medical University Hospital, 1-1 Yazakokarimata, Nagakute-city, Aichi 480-1195, Japan
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Dazai M, Yuki S, Sawada K, Muranaka T, Kawamoto Y, Nakatsumi H, Nakano S, Ishiguro A, Tateyama M, Sato A, Kobayashi Y, Nakamura M, Okuda H, Takahashi Y, Eto K, Muto S, Hatanaka K, Amano T, Sakata Y, Komatsu Y. HGCSG1301: A multicenter, double-blind, randomized control phase II trial comparing Hange-shashin-to versus placebo to prevent diarrhea in patients with metastatic colorectal cancer under IRIS/Bev second-line treatment. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy431.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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40
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Nakamura M, Muranaka T, Yagisawa M, Kawamoto Y, Yuki S, Ishiguro A, Dazai M, Sogabe S, Harada K, Kobayashi Y, Miyagishima T, Okamura N, Tsuji Y, Terae S, Ono K, Komatsu Y. A multicenter prospective study on the efficacy and safety of denosumab in gastrointestinal cancer patients receiving short-term periodic steroid premedication for prevention of chemotherapy-induced nausea and vomiting (ESPRESSO-02/HGCSG1602). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy444.020] [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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41
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Iwanaga I, Yuki S, Kawamoto Y, Nakatsumi H, Takahashi N, Shichinohe T, Okuda H, Ishiguro A, Harada K, Hatanaka K, Oomori K, Nakamura M, Senmaru N, Iwai K, Koike M, Ito Y, Taketomi A, Hirano S, Sakamoto N, Komatsu Y. NORTH/HGCSG1003: A phase II study evaluating the safety and efficacy of FOLFOX as adjuvant chemotherapy for patients with stage III colon cancer: Comparison with medical oncologists and surgeons. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy431.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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42
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Ishiguro A, Yuki S, Nakano S, Kawamoto Y, Sawada K, Tsuji Y, Honda T, Miyagishima T, Yoshida S, Hatanaka K, Sasaki T, Muto O, Ohnuma H, Kato S, Sato A, Abe M, Kato K, Amano T, Sakata Y, Komatsu Y. HGCSG1401: A retrospective cohort study evaluating the safety and efficacy of regorafenib in patients with metastatic colorectal cancer: Analysis of risk factors for liver dysfunction. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy431.024] [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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43
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Yoshikawa A, Kawamoto Y, Yuki S, Nakano S, Sawada K, Muranaka T, Nakatsumi H, Harada K, Kobayashi Y, Miyagishima T, Saiki T, Ishiguro A, Saito R, Ehira N, Iwanaga I, Hatanaka K, Abe N, Sakamoto N, Sakata Y, Komatsu Y. HGCSG1403: Phase I trial of oxaliplatin/irinotecan/S-1 (OX-IRIS) as first-line chemotherapy for unresectable pancreatic cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy432.048] [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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44
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Suzuki K, Yuki S, Nakano S, Kawamoto Y, Nakatsumi H, Hatanaka K, Ando T, Furukawa K, Ishiguro A, Ohta T, Eto K, Nakajima J, Nakamura M, Sogabe S, Kato K, Tateyama M, Kato S, Sekiguchi M, Sakata Y, Komatsu Y. HGCSG1503: A retrospective cohort study evaluating the safety and efficacy of TAS-102 in patients with metastatic colorectal cancer: Analysis of GERCOR index. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy431.016] [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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45
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Sawada K, Komatsu Y, Muranaka T, Nakano S, Kawamoto Y, Nakatsumi H, Yuki S, Dazai M, Saiki T, Ishiguro A, Tateyama M, Ono K, Ohnishi S, Sakamoto N. The prospective multicenter study of relation between 5-HIAA/substance P plasma concentration transition and nausea/vomiting in patients with gastrointestinal cancer receiving moderately emetogenic chemotherapy (MEC). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy444.010] [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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46
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Izawa N, Morizane C, Takahashi H, Ueno M, Kawamoto Y, Okano N, Shimizu S, Sudo K, Itoh S, Asagi A, Kagawa Y, Kamata K, Kudo T, Nomura S, Kuwata T, Fujii S, Okamoto W, Shitara K, Ohtsu A, Yoshino T. The nationwide cancer genome screening project in Japan, SCRUM-Japan GI-SCREEN: Efficient identification of cancer genome alterations in advanced pancreatic cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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47
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Yuki S, Shinozaki K, Kashiwada T, Kusumoto T, Iwatsuki M, Satake H, Tokunaga S, Emi Y, Makiyama A, Kawamoto Y, Komatsu Y, Shimokawa M, Saeki H, Oki E, Baba H, Maehara Y. Updated analysis of a phase II study of SOX plus trastuzumab for the patients with HER2 positive advanced or recurrent gastric cancer: KSCC/HGCSG/CCOG/PerSeUS1501B. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.052] [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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Shindo Y, Yuki S, Yagisawa M, Kawamoto Y, Tsuji Y, Hatanaka K, Kobayashi Y, Kajiura S, Ishiguro A, Honda T, Dazai M, Eto K, Nakamura M, Koike M, Ota S, Sato A, Kato K, Ueda A, Fukunaga A, Sekiguchi M, Sakata Y, Komatsu Y. HGCSG1503: A retrospective cohort study evaluating the safety and efficacy of TAS-102 in patients with metastatic colorectal cancer: Analysis of cases of prior regorafenib. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.257] [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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49
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Nakamura M, Komatsu Y, Muranaka T, Yagisawa M, Kawamoto Y, Nakatsumi H, Yuki S, Saiki T, Ishiguro A, Tateyama M, Kobayashi Y, Miyagishima T, Takahata T, Sato A, Dazai M, Okuda H, Fujikawa K, Eto K, Muto S, Hatanaka K, Amano T, Sakata Y. HGCSG 1301: A Multicenter, Double-Blind, Randomized control phase II trial comparing Hange-shashin-to versus placebo to prevent diarrhea in patients with metastatic colorectal cancer under IRIS/Bev second-line treatment. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.225] [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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50
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Ishiguro A, Kawamoto Y, Yuki S, Nakano S, Yagisawa M, Sawada K, Muranaka T, Hayashi H, Nakatsumi H, Saiki T, Harada K, Kobayashi Y, Iwanaga I, Hatanaka K, Sakata Y, Komatsu Y. HGCSG 1403: Phase I trial of oxaliplatin/irinotecan/S-1 (OX-IRIS) as first line chemotherapy for unresectable pancreatic cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.138] [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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