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Tsuyuki Y, Maeda T, Torii K, Yoshida H, Ikeda N, Yoshida S, Ito M, Goto M, Takahashi T. Antimicrobial resistance patterns of Streptococcus uberis isolates from bovine milk in Chiba prefecture, Japan: association between multidrug resistance and clonal complex 996. J Vet Med Sci 2024; 86:468-473. [PMID: 38569837 DOI: 10.1292/jvms.23-0526] [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] [Indexed: 04/05/2024] Open
Abstract
Streptococcus uberis is one of major pathogens causing bovine mastitis. However, there is poor information on antimicrobial resistance (AMR) among the Japanese isolates. To provide treatment information for the mastitis caused by S. uberis in Japan, we aimed to clarify AMR patterns of the isolates from bovine milk mainly in Chiba. AMR phenotyping/genotyping [blaZ-erm(A)-erm(B)-mef(A)-linB-lnuD-tet(M)-tet(O)-tet(K)-tet(L)-tet(S)] and multilocus sequence typing were performed to analyze relationships between AMR patterns and clonal complexes (CCs). Resistance to tetracycline-, macrolide-, and lincosamide-classes was mainly associated with possession of tet(O), tet(S), erm(B), linB, and lnuD genes. CC996 was significantly associated with multidrug resistance (P<0.0001). These findings will aid Chiba farm animal clinics in treating bovine mastitis.
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Affiliation(s)
- Yuzo Tsuyuki
- Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory, Tokyo, Japan
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
- Matsuoka Research Institute for Science, Tokyo, Japan
| | - Takahiro Maeda
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Kae Torii
- Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory, Tokyo, Japan
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Noriaki Ikeda
- Division of Clinical Laboratory, Obihiro Clinical Laboratory, Hokkaido, Japan
| | - Saki Yoshida
- Division of Clinical Laboratory, Obihiro Clinical Laboratory, Hokkaido, Japan
| | - Masahiko Ito
- Division of Clinical Laboratory, Sapporo Clinical Laboratory, Hokkaido, Japan
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
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Perkovich E, Laakman A, Mire S, Yoshida H. Conducting head-mounted eye-tracking research with young children with autism and children with increased likelihood of later autism diagnosis. J Neurodev Disord 2024; 16:7. [PMID: 38438975 PMCID: PMC10910727 DOI: 10.1186/s11689-024-09524-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 02/16/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Over the past years, researchers have been using head-mounted eye-tracking systems to study young children's gaze behaviors in everyday activities through which children learn about the world. This method has great potential to further our understanding of how millisecond-level gaze behaviors create multisensory experiences and fluctuate around social environments. While this line of work can yield insight into early perceptual experiences and potential learning mechanisms, the majority of the work is exclusively conducted with typically-developing children. Sensory sensitivities, social-communication difficulties, and challenging behaviors (e.g., disruption, elopement) are common among children with developmental disorders, and they may represent potential methodological challenges for collecting high-quality data. RESULTS In this paper, we describe our research practices of using head-mounted eye trackers with 41 autistic children and 17 children with increased likelihood of later autism diagnosis without auditory or visual impairments, including those who are minimally or nonspeaking and/or have intellectual disabilities. The success rate in gathering data among children with autism was 92.68%. 3 of 41 children failed to complete the play-session, resulting in an 86.36% success rate among 1-4-year-olds and a 100.00% success rate among 5-8-year-olds. 1 of 17 children with increased likelihood of later autism diagnosis failed to complete the play-session, resulting in a success rate of 94.11%. There were numerous "challenging" behaviors relevant to the method. The most common challenging behaviors included taking the eye-tracking device off, elopement, and becoming distressed. Overall, among children with autism, 88.8% of 1-4-year-olds and 29.4% of 5-8-year-olds exhibited at least one challenging behavior. CONCLUSIONS Research capitalizing on this methodology has the potential to reveal early, socially-mediated gaze behaviors that are relevant for autism screening, diagnosis, and intervention purposes. We hope that our efforts in documenting our study methodology will help researchers and clinicians effectively study early naturally-occuring gaze behaviors of children during non-experimental contexts across the spectrum and other developmental disabilities using head-mounted eye-tracking. Ultimately, such applications may increase the generalizability of results, better reflect the diversity of individual characteristics, and offer new ways in which this method can contribute to the field.
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Affiliation(s)
| | - A Laakman
- University of Houston, Houston, TX, USA
| | - S Mire
- Baylor University, Waco, TX, USA
| | - H Yoshida
- University of Houston, Houston, TX, USA
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Maeda T, Yoshida H, Abe N, Murakami K, Goto M, Takahashi T. Draft genome sequence of emm103/ST1363 Streptococcus pyogenes strain AB1, isolated from the blood of a woman with peritonitis and toxic shock syndrome. Microbiol Resour Announc 2024; 13:e0102723. [PMID: 38289051 PMCID: PMC10868168 DOI: 10.1128/mra.01027-23] [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: 10/26/2023] [Accepted: 01/08/2024] [Indexed: 02/16/2024] Open
Abstract
We report the draft genome sequence of Streptococcus pyogenes strain AB1 isolated from the blood of a woman with peritonitis-toxic shock syndrome. The genome measured 1.855 Mbp, with a G + C content of 38.3%. Sequences unmapped to the reference genome sequence of M1 SF370 (GenBank accession number AE004092.2) were characterized.
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Affiliation(s)
- Takahiro Maeda
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences, Ōmura Satoshi Memorial Institute, Kitasato University, Minato, Tokyo, Japan
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences, Ōmura Satoshi Memorial Institute, Kitasato University, Minato, Tokyo, Japan
| | - Noriyuki Abe
- Department of Clinical Laboratory Medicine, Tenri Hospital, Tenri, Nara, Japan
| | - Koichiro Murakami
- Department of General Internal Medicine, Tenri Hospital, Tenri, Nara, Japan
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences, Ōmura Satoshi Memorial Institute, Kitasato University, Minato, Tokyo, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences, Ōmura Satoshi Memorial Institute, Kitasato University, Minato, Tokyo, Japan
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Yoshida H, Takayama Y, Goto M, Maeda T, Tsuyuki Y, Takahashi T. Human Keratinocyte Entry of Noninvasive Streptococcus dysgalactiae Subsp. equisimilis from Humans and Companion Animals: Relatedness with Lancefield Group, Source, Virulence-Associated Genes, and Antimicrobial Resistance Phenotype. Jpn J Infect Dis 2024; 77:25-33. [PMID: 37779027 DOI: 10.7883/yoken.jjid.2023.310] [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] [Indexed: 10/03/2023]
Abstract
We evaluated the cell invasion ability (CIA) of non-invasive Streptococcus dysgalactiae subsp. equisimilis using human keratinocytes and determined the association of CIA populations with their hosts and microbiological traits. Forty-two isolates from humans and companion animals were selected with host information. In addition to CIA, virulence-associated gene (VAG, spegg-ska-scpA-inlA-sicG-brpA-prtF1-prtF2-lmb-cbp-srtp1-srtp2) profiling, emm genotyping, multilocus sequence typing, and antimicrobial resistance (AMR) phenotyping/genotyping were performed. We designated CIA values higher than the mean of all isolates as high-frequency and those lower than the mean as low-frequency. Differences in the CIA between the different sources and Lancefield groups were assessed. We analyzed the association between high- and low-frequency CIA and VAG, emm genotype, sequence type/clonal complex, and AMR phenotype/genotype. Based on the mean (19.368 colony-forming units/100 cells) of 42 isolates, eight isolates had high-frequency CIA, whereas 34 had low-frequency CIA. We found an association between low-frequency CIA population and group G isolates, as well as a link between high-frequency CIA population and group C isolates. We also observed associations between low-frequency CIA population and oral/respiratory tract origin, ska, scpA, and lmb detection, and the AMR phenotype. Our observations suggest potential associations between high-/low-frequency CIA and the group, source, VAG, and AMR phenotypes.
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Affiliation(s)
- Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Yoshiko Takayama
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
- Division of Clinical Laboratory, Byotai-Seiri Laboratory, Japan
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Takahiro Maeda
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Yuzo Tsuyuki
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
- Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
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Taniyama D, Maeda T, Yokozawa T, Takano A, Oda T, Li S, Yoshida H, Takahashi T. Phenotypic and Genotypic Traits of Pasteurella multocida subsp. septica Isolates From the Wounds of Two Patients Due to Dog or Cat Biting, 2023. Cureus 2023; 15:e42640. [PMID: 37644956 PMCID: PMC10461409 DOI: 10.7759/cureus.42640] [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] [Accepted: 07/22/2023] [Indexed: 08/31/2023] Open
Abstract
We describe the phenotypic and genotypic traits of Pasteurella multocida subsp. septica isolates from the dog/cat bite wounds of two patients in 2023. A 79-year-old man with diabetes mellitus and cerebral infarction who was bitten by a dog on his left hand developed deep inflammation under the tendon between his left fourth and fifth fingers. The patient's condition was resolved with antimicrobial treatment and surgical intervention. Another patient, a healthy 49-year-old woman who was bitten by a cat on her left hand, developed superficial inflammation of the left thumb and index finger. The patient's condition improved with antimicrobial treatment without surgical intervention. The isolates from the two patients had similar biochemical properties, and the antimicrobial susceptibility data for both isolates indicated erythromycin resistance. Genotypic analyses revealed clade 2 on the dendrogram of repetitive sequence-based fingerprinting, capsule serogroup cap genotype A, and hsf-1-nanH-pmHAS (virulence-associated genes). Our observations show that the two isolates have similar phenotypic and genotypic traits, regardless of differences in patient background, biting pets, wound inflammation, or the necessity of surgical intervention.
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Affiliation(s)
- Daisuke Taniyama
- Department of Infectious Diseases, Showa General Hospital, Tokyo, JPN
| | - Takahiro Maeda
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences and Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, JPN
| | | | - Akifumi Takano
- Department of Infectious Diseases, Showa General Hospital, Tokyo, JPN
| | - Toshimi Oda
- Department of Infectious Diseases, Showa General Hospital, Tokyo, JPN
| | - Sayori Li
- Orthopedic Surgery, Showa General Hospital, Tokyo, JPN
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences and Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, JPN
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences and Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, JPN
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Ray-Coquard I, Leary A, Pignata S, Cropet C, González-Martin A, Marth C, Nagao S, Vergote I, Colombo N, Mäenpää J, Selle F, Sehouli J, Lorusso D, Alia EMG, Bogner G, Yoshida H, Lefeuvre-Plesse C, Buderath P, Mosconi AM, Lortholary A, Burges A, Medioni J, El-Balat A, Rodrigues M, Park-Simon TW, Dubot C, Denschlag D, You B, Pujade-Lauraine E, Harter P. Olaparib plus bevacizumab first-line maintenance in ovarian cancer: final overall survival results from the PAOLA-1/ENGOT-ov25 trial. Ann Oncol 2023:S0923-7534(23)00686-5. [PMID: 37211045 DOI: 10.1016/j.annonc.2023.05.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 33.0] [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: 03/09/2023] [Revised: 05/05/2023] [Accepted: 05/10/2023] [Indexed: 05/23/2023] Open
Abstract
BACKGROUND In the PAOLA-1/ENGOT-ov25 primary analysis, maintenance olaparib plus bevacizumab demonstrated a significant progression-free survival (PFS) benefit in newly diagnosed advanced ovarian cancer patients in clinical response after first-line platinum-based chemotherapy plus bevacizumab, irrespective of surgical status. Prespecified, exploratory analyses by molecular biomarker status showed substantial benefit in patients with a BRCA1/BRCA2 mutation (BRCAm) or homologous recombination deficiency (HRD; BRCAm and/or genomic instability). We report the prespecified final overall survival (OS) analysis, including analyses by HRD status. PATIENTS AND METHODS Patients were randomized 2:1 to olaparib (300 mg bid; up to 24 months) plus bevacizumab (15 mg/kg q3w; 15 months total) or placebo plus bevacizumab. Analysis of OS, a key secondary endpoint in hierarchical testing, was planned for ∼60% maturity or 3 years after the primary analysis. RESULTS After median follow-up of 61.7 and 61.9 months in the olaparib and placebo arms, respectively, median OS was 56.5 versus 51.6 months in the ITT (hazard ratio [HR]=0.92, 95% CI 0.76-1.12; P=0.4118). Subsequent poly(ADP-ribose) polymerase (PARP) inhibitor therapy was received by 105 (19.6%) olaparib patients versus 123 (45.7%) placebo patients. In the HRD-positive population, OS was longer with olaparib plus bevacizumab (HR=0.62, 95% CI 0.45-0.85; 5-year OS rate, 65.5% versus 48.4%); at 5 years, updated PFS also showed a higher proportion of olaparib plus bevacizumab patients without relapse (HR=0.41, 95% CI 0.32-0.54; 5-year PFS rate, 46.1% versus 19.2%). Myelodysplastic syndrome, acute myeloid leukemia, aplastic anemia, and new primary malignancy incidence remained low and balanced between arms. CONCLUSIONS Olaparib plus bevacizumab provided clinically meaningful OS improvement for first-line patients with HRD-positive ovarian cancer. These prespecified exploratory analyses demonstrated improvement despite a high proportion of patients in the placebo arm receiving PARP inhibitors post-progression, confirming the combination as one of the standards of care in this setting with the potential to enhance cure.
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Affiliation(s)
- I Ray-Coquard
- Department of Medical Oncology, Centre Léon BERARD, Lyon, and GINECO, France;.
| | - A Leary
- Gynecological Cancer Unit, Department of Medicine, Institut Gustave Roussy, Villejuif, and GINECO, France
| | - S Pignata
- Department of Urology and Gynecology, Istituto Nazionale Tumori 'Fondazione G Pascale', IRCCS, Napoli, and MITO, Italy
| | - C Cropet
- Department of Biostatistics Centre Léon BERARD, Lyon, and GINECO, France
| | - A González-Martin
- Department of Medical Oncology, Clínica Universidad de Navarra, Program in Solid Tumors (CIMA), Pamplona, and GEICO, Spain
| | - C Marth
- Department of Obstetrics and Gynecology, Medical University Innsbruck, Innsbruck, and AGO Austria, Austria
| | - S Nagao
- Department of Gynecologic Oncology, Hyogo Cancer Center, Akashi, and GOTIC, Japan
| | - I Vergote
- Department of Obstetrics and Gynaecology, University Hospital Leuven, Leuven Cancer Institute, Leuven, and BGOG, Belgium, European Union
| | - N Colombo
- University of Milan-Bicocca and Istituto Europeo di Oncologia IRCCS Milan, and MANGO, Italy
| | - J Mäenpää
- Department of Obstetrics and Gynecology and Cancer Center, Tampere University and University Hospital, Tampere, and NSGO, Finland
| | - F Selle
- Department of Medical Oncology, Groupe Hospitalier Diaconesses Croix Saint-Simon, Paris, and GINECO, France
| | - J Sehouli
- Charité - Department of Gynecology with Center of Oncological Surgery, Universitätsmedizin Berlin, Berlin, and AGO, Germany
| | - D Lorusso
- (3)Gynecologic Oncology Unit, Catholic University of Sacred Heart and Fondazione Policlinico Gemelli IRCCS, Rome, and MITO, Italy
| | - E M Guerra Alia
- Medical Oncology Department, Hospital Universitario Ramón y Cajal, Madrid, and GEICO, Spain
| | - G Bogner
- Department of Obstetrics and Gynecology, Paracelsus Medical University Salzburg, Salzburg, and AGO Austria, Austria
| | - H Yoshida
- Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Saitama, and GOTIC, Japan
| | - C Lefeuvre-Plesse
- Department of Medical Oncology, Centre Eugène Marquis, Rennes, and GINECO, France
| | - P Buderath
- Universitätsklinikum Essen, University Hospital Essen, West German Cancer Center, Department of Gynecology and Obstetrics, Essen and AGO, Germany
| | - A M Mosconi
- S.C. di Oncologia Medica Osp. S. Maria della Misericordia - AO di Perugia, and MITO, Italy
| | - A Lortholary
- Centre Catherine de Sienne Hopital privé du Confluent, Nantes, and GINECO, France
| | - A Burges
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Munich, and AGO, Germany
| | - J Medioni
- Hôpital Européen Georges Pompidou, Universite de Paris Cite, Paris, and GINECO, France
| | - A El-Balat
- Spital Uster, Frauenklinik, Uster, Switzerland, and Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt, and AGO, Germany
| | - M Rodrigues
- Department of Medical Oncology, Institut Curie, Hopital Claudius Régaud, PSL Research University, Paris, France, and GINECO, France
| | - T-W Park-Simon
- Department of Gynaecology and Obstetrics, Hannover Medical School, Hannover, and AGO, Germany
| | - C Dubot
- Oncologie Médicale, Institut Curie, Hôpital René Huguenin, Saint Cloud, Paris, and GINECO, France
| | - D Denschlag
- Hochtaunuskliniken, Bad Homburg, and AGO, Germany
| | - B You
- HCL - Hospices Civils de Lyon IC-HCL, CITOHL, Université Claude Bernard Lyon 1, CICLY,Lyon, and GINECO, France
| | | | - P Harter
- Department of Gynaecology & Gynaecologic Oncology, Ev. Kliniken Essen-Mitte, Essen, and AGO, Germany
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Yoshida H, Kim JM, Maeda T, Goto M, Tsuyuki Y, Shibata S, Shizuno K, Okuzumi K, Kim JS, Takahashi T. Virulence-associated Genome Sequences of Pasteurella canis and Unique Toxin Gene Prevalence of P. canis and Pasteurella multocida Isolated from Humans and Companion Animals. Ann Lab Med 2023; 43:263-272. [PMID: 36544338 DOI: 10.3343/alm.2023.43.3.263] [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: 09/07/2022] [Revised: 10/19/2022] [Accepted: 11/18/2022] [Indexed: 12/24/2022] Open
Abstract
Background Comparative analysis of virulence factors (VFs) between Pasteurella canis and Pasteurella multocida are lacking, although both cause zoonotic infections. We determined the virulence-associated genome sequence characteristics of P. canis and assessed the toxin gene prevalence unique to P. canis among clinical isolates of P. canis and P. multocida. Methods We selected 10 P. canis and 16 P. multocida whole-genome sequences (WGSs) from the National Center for Biotechnology database. The VFanalyzer tool was used to estimate P. canis-characteristic VFs. Amino acid sequences of VFs were compared with multiple-aligned sequences. The genome structure containing P. canis-characteristic and adjacent loci was compared to the corresponding P. multocida genome structure. After designing primer sequences and assessing their accuracy, we examined the gene prevalence of the P. canis-characteristic VFs using PCR among clinical isolates of P. multocida and P. canis. Results Using VFanalyzer, we found virulence-associated cytolethal distending toxin (cdt)A-cdtB-cdtC loci common to all P. canis WGSs that were not found in P. multocida WGSs. Similarities in the multiple alignments of CdtA-CdtB-CdtC amino acid sequences were found among the 10 P. canis WGSs. Shared or similar loci around cdtA-cdtB-cdtC were identified between the P. canis and P. multocida genome structures. The PCR-based cdtA-cdtB-cdtC prevalence differed for P. canis and P. multocida clinical isolates. Conclusions P. canis-specific cdtA-cdtB-cdtC prevalence was identified among clinical isolates. These three loci may be unique toxin genes and promising targets for the rapid identification of P. canis in clinical settings.
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Affiliation(s)
- Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Jung-Min Kim
- Department of Laboratory Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Takahiro Maeda
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Yuzo Tsuyuki
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan.,Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory, Tokyo, Japan
| | - Sachiko Shibata
- Division of Clinical Laboratory, Sanritsu Laboratory, Chiba, Japan
| | - Kenichi Shizuno
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan.,Department of Clinical Laboratory, Chiba Kaihin Municipal Hospital, Chiba, Japan
| | - Katsuko Okuzumi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Jae-Seok Kim
- Department of Laboratory Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
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8
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Nakamura T, Matsumoto M, Amano K, Enokido Y, Zolensky ME, Mikouchi T, Genda H, Tanaka S, Zolotov MY, Kurosawa K, Wakita S, Hyodo R, Nagano H, Nakashima D, Takahashi Y, Fujioka Y, Kikuiri M, Kagawa E, Matsuoka M, Brearley AJ, Tsuchiyama A, Uesugi M, Matsuno J, Kimura Y, Sato M, Milliken RE, Tatsumi E, Sugita S, Hiroi T, Kitazato K, Brownlee D, Joswiak DJ, Takahashi M, Ninomiya K, Takahashi T, Osawa T, Terada K, Brenker FE, Tkalcec BJ, Vincze L, Brunetto R, Aléon-Toppani A, Chan QHS, Roskosz M, Viennet JC, Beck P, Alp EE, Michikami T, Nagaashi Y, Tsuji T, Ino Y, Martinez J, Han J, Dolocan A, Bodnar RJ, Tanaka M, Yoshida H, Sugiyama K, King AJ, Fukushi K, Suga H, Yamashita S, Kawai T, Inoue K, Nakato A, Noguchi T, Vilas F, Hendrix AR, Jaramillo-Correa C, Domingue DL, Dominguez G, Gainsforth Z, Engrand C, Duprat J, Russell SS, Bonato E, Ma C, Kawamoto T, Wada T, Watanabe S, Endo R, Enju S, Riu L, Rubino S, Tack P, Takeshita S, Takeichi Y, Takeuchi A, Takigawa A, Takir D, Tanigaki T, Taniguchi A, Tsukamoto K, Yagi T, Yamada S, Yamamoto K, Yamashita Y, Yasutake M, Uesugi K, Umegaki I, Chiu I, Ishizaki T, Okumura S, Palomba E, Pilorget C, Potin SM, Alasli A, Anada S, Araki Y, Sakatani N, Schultz C, Sekizawa O, Sitzman SD, Sugiura K, Sun M, Dartois E, De Pauw E, Dionnet Z, Djouadi Z, Falkenberg G, Fujita R, Fukuma T, Gearba IR, Hagiya K, Hu MY, Kato T, Kawamura T, Kimura M, Kubo MK, Langenhorst F, Lantz C, Lavina B, Lindner M, Zhao J, Vekemans B, Baklouti D, Bazi B, Borondics F, Nagasawa S, Nishiyama G, Nitta K, Mathurin J, Matsumoto T, Mitsukawa I, Miura H, Miyake A, Miyake Y, Yurimoto H, Okazaki R, Yabuta H, Naraoka H, Sakamoto K, Tachibana S, Connolly HC, Lauretta DS, Yoshitake M, Yoshikawa M, Yoshikawa K, Yoshihara K, Yokota Y, Yogata K, Yano H, Yamamoto Y, Yamamoto D, Yamada M, Yamada T, Yada T, Wada K, Usui T, Tsukizaki R, Terui F, Takeuchi H, Takei Y, Iwamae A, Soejima H, Shirai K, Shimaki Y, Senshu H, Sawada H, Saiki T, Ozaki M, Ono G, Okada T, Ogawa N, Ogawa K, Noguchi R, Noda H, Nishimura M, Namiki N, Nakazawa S, Morota T, Miyazaki A, Miura A, Mimasu Y, Matsumoto K, Kumagai K, Kouyama T, Kikuchi S, Kawahara K, Kameda S, Iwata T, Ishihara Y, Ishiguro M, Ikeda H, Hosoda S, Honda R, Honda C, Hitomi Y, Hirata N, Hirata N, Hayashi T, Hayakawa M, Hatakeda K, Furuya S, Fukai R, Fujii A, Cho Y, Arakawa M, Abe M, Watanabe S, Tsuda Y. Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples. Science 2023; 379:eabn8671. [PMID: 36137011 DOI: 10.1126/science.abn8671] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Samples of the carbonaceous asteroid Ryugu were brought to Earth by the Hayabusa2 spacecraft. We analyzed 17 Ryugu samples measuring 1 to 8 millimeters. Carbon dioxide-bearing water inclusions are present within a pyrrhotite crystal, indicating that Ryugu's parent asteroid formed in the outer Solar System. The samples contain low abundances of materials that formed at high temperatures, such as chondrules and calcium- and aluminum-rich inclusions. The samples are rich in phyllosilicates and carbonates, which formed through aqueous alteration reactions at low temperature, high pH, and water/rock ratios of <1 (by mass). Less altered fragments contain olivine, pyroxene, amorphous silicates, calcite, and phosphide. Numerical simulations, based on the mineralogical and physical properties of the samples, indicate that Ryugu's parent body formed ~2 million years after the beginning of Solar System formation.
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Affiliation(s)
- T Nakamura
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Matsumoto
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - K Amano
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Y Enokido
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M E Zolensky
- NASA Johnson Space Center; Houston, TX 77058, USA
| | - T Mikouchi
- The University Museum, The University of Tokyo, Tokyo 113-0033, Japan
| | - H Genda
- Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - M Y Zolotov
- School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA
| | - K Kurosawa
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - S Wakita
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - R Hyodo
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Nagano
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - D Nakashima
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Y Takahashi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Isotope Science Center, The University of Tokyo, Tokyo 113-0032, Japan
| | - Y Fujioka
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Kikuiri
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - E Kagawa
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Matsuoka
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon 92195 France.,Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8567, Japan
| | - A J Brearley
- Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - A Tsuchiyama
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan.,Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China.,Center for Excellence in Deep Earth Science, CAS, Guangzhou 510640, China
| | - M Uesugi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - J Matsuno
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Y Kimura
- Institute of Low Temperature Science, Hokkaido University, Sapporo 060-0819, Japan
| | - M Sato
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R E Milliken
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - E Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Instituto de Astrofísica de Canarias, University of La Laguna, Tenerife 38205, Spain
| | - S Sugita
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Hiroi
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - K Kitazato
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - D Brownlee
- Department of Astronomy, University of Washington, Seattle, WA 98195 USA
| | - D J Joswiak
- Department of Astronomy, University of Washington, Seattle, WA 98195 USA
| | - M Takahashi
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - K Ninomiya
- Institute for Radiation Sciences, Osaka University, Toyonaka 560-0043, Japan
| | - T Takahashi
- Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan.,Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Osawa
- Materials Sciences Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Terada
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - F E Brenker
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - B J Tkalcec
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - L Vincze
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - R Brunetto
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - A Aléon-Toppani
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - Q H S Chan
- Department of Earth Sciences, Royal Holloway, University of London, Egham TW20 0EX, UK
| | - M Roskosz
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - J-C Viennet
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - P Beck
- Institut de Planétologie et d'Astrophysique de Grenoble, CNRS, Université Grenoble Alpes, 38000 Grenoble, France
| | - E E Alp
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - T Michikami
- Faculty of Engineering, Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - Y Nagaashi
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan.,Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - T Tsuji
- Department of Earth Resources Engineering, Kyushu University, Fukuoka 819-0395, Japan.,School of Engineering, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y Ino
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Kwansei Gakuin University, Sanda 669-1330, Japan
| | - J Martinez
- NASA Johnson Space Center; Houston, TX 77058, USA
| | - J Han
- Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, USA
| | - A Dolocan
- Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - R J Bodnar
- Department of Geoscience, Virginia Tech, Blacksburg, VA 24061, USA
| | - M Tanaka
- Materials Analysis Station, National Institute for Materials Science, Tsukuba 305-0047, Japan
| | - H Yoshida
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Sugiyama
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - A J King
- Department of Earth Science, Natural History Museum, London SW7 5BD, UK
| | - K Fukushi
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - H Suga
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - S Yamashita
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - T Kawai
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Inoue
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - A Nakato
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Noguchi
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan.,Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - F Vilas
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - A R Hendrix
- Planetary Science Institute, Tucson, AZ 85719, USA
| | | | - D L Domingue
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - G Dominguez
- Department of Physics, California State University, San Marcos, CA 92096, USA
| | - Z Gainsforth
- Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA
| | - C Engrand
- Laboratoire de Physique des 2 Infinis Irène Joliot-Curie, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - J Duprat
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - S S Russell
- Department of Earth Science, Natural History Museum, London SW7 5BD, UK
| | - E Bonato
- Institute for Planetary Research, Deutsches Zentrum für Luftund Raumfahrt, Rutherfordstraße 2 12489 Berlin, Germany
| | - C Ma
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena CA 91125, USA
| | - T Kawamoto
- Department of Geosciences, Shizuoka University, Shizuoka 422-8529, Japan
| | - T Wada
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - S Watanabe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan
| | - R Endo
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - S Enju
- Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
| | - L Riu
- European Space Astronomy Centre, 28692 Villanueva de la Cañada, Spain
| | - S Rubino
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - P Tack
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - S Takeshita
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan
| | - Y Takeichi
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan.,Department of Applied Physics, Osaka University, Suita 565-0871, Japan
| | - A Takeuchi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - A Takigawa
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - D Takir
- NASA Johnson Space Center; Houston, TX 77058, USA
| | | | - A Taniguchi
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori 590-0494, Japan
| | - K Tsukamoto
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - T Yagi
- National Metrology Institute of Japan, AIST, Tsukuba 305-8565, Japan
| | - S Yamada
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - K Yamamoto
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - Y Yamashita
- National Metrology Institute of Japan, AIST, Tsukuba 305-8565, Japan
| | - M Yasutake
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - K Uesugi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - I Umegaki
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan.,Toyota Central Research and Development Laboratories, Nagakute 480-1192, Japan
| | - I Chiu
- Institute for Radiation Sciences, Osaka University, Toyonaka 560-0043, Japan
| | - T Ishizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Okumura
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - E Palomba
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome 00133, Italy
| | - C Pilorget
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France.,Institut Universitaire de France, Paris, France
| | - S M Potin
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon 92195 France.,Faculty of Aerospace Engineering, Delft University of Technology, Delft, Netherlands
| | - A Alasli
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - S Anada
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - Y Araki
- Department of Physical Sciences, Ritsumeikan University, Shiga 525-0058, Japan
| | - N Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - C Schultz
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - O Sekizawa
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - S D Sitzman
- Physical Sciences Laboratory, The Aerospace Corporation, CA 90245, USA
| | - K Sugiura
- Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - M Sun
- Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China.,Center for Excellence in Deep Earth Science, CAS, Guangzhou 510640, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - E Dartois
- Institut des Sciences Moléculaires d'Orsay, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - E De Pauw
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - Z Dionnet
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - Z Djouadi
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - G Falkenberg
- Deutsches Elektronen-Synchrotron Photon Science, 22603 Hamburg, Germany
| | - R Fujita
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - T Fukuma
- Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan
| | - I R Gearba
- Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - K Hagiya
- Graduate School of Life Science, University of Hyogo, Hyogo 678-1297, Japan
| | - M Y Hu
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - T Kato
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - T Kawamura
- Institut de Physique du Globe de Paris, Université de Paris, Paris 75205, France
| | - M Kimura
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - M K Kubo
- Division of Natural Sciences, International Christian University, Mitaka 181-8585, Japan
| | - F Langenhorst
- Institute of Geosciences, Friedrich-Schiller-Universität Jena, 07745 Jena, Germany
| | - C Lantz
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - B Lavina
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA
| | - M Lindner
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - J Zhao
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - B Vekemans
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - D Baklouti
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - B Bazi
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - F Borondics
- Optimized Light Source of Intermediate Energy to LURE (SOLEIL) L'Orme des Merisiers, Gif sur Yvette F-91192, France
| | - S Nagasawa
- Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan.,Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - G Nishiyama
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Nitta
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - J Mathurin
- Institut Chimie Physique, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - T Matsumoto
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - I Mitsukawa
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - H Miura
- Graduate School of Science, Nagoya City University, Nagoya 467-8501, Japan
| | - A Miyake
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - Y Miyake
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan
| | - H Yurimoto
- Department of Natural History Sciences, Hokkaido University, Sapporo 060-0810, Japan
| | - R Okazaki
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - H Yabuta
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - H Naraoka
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - K Sakamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Tachibana
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - H C Connolly
- Department of Geology, Rowan University, Glassboro, NJ 08028, USA
| | - D S Lauretta
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA
| | - M Yoshitake
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - K Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - K Yoshihara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Yogata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - D Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Yamada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Yada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Usui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F Terui
- Department of Mechanical Engineering, Kanagawa Institute of Technology, Atsugi 243-0292, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Iwamae
- Marine Works Japan, Yokosuka 237-0063, Japan
| | - H Soejima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - K Shirai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - H Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - G Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - T Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - N Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Noguchi
- Faculty of Science, Niigata University, Niigata 950-2181, Japan
| | - H Noda
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - M Nishimura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Namiki
- Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - A Miyazaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Matsumoto
- Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Kumagai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - T Kouyama
- Digital Architecture Research Center, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - S Kikuchi
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Kawahara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Kameda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - T Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Ishihara
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - M Ishiguro
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - H Ikeda
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan.,Center for Data Science, Ehime University, Matsuyama 790-8577, Japan
| | - C Honda
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Hitomi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - N Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - N Hirata
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T Hayashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Hatakeda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - S Furuya
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Fukai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - M Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - S Watanabe
- Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
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9
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Koishi M, Tomota K, Nakamoto M, Yoshida H. Direct Suzuki‐Miyaura Coupling of Naphthalene‐1,8‐diaminato (dan)‐Substituted Cyclopropylboron Compounds. Adv Synth Catal 2023. [DOI: 10.1002/adsc.202300059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- M. Koishi
- Graduate School of Advanced Science and Engineering Hiroshima University Higashi-Hiroshima 739-8526 Japan
| | - K. Tomota
- Graduate School of Advanced Science and Engineering Hiroshima University Higashi-Hiroshima 739-8526 Japan
| | - M. Nakamoto
- Graduate School of Advanced Science and Engineering Hiroshima University Higashi-Hiroshima 739-8526 Japan
| | - H. Yoshida
- Graduate School of Advanced Science and Engineering Hiroshima University Higashi-Hiroshima 739-8526 Japan
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10
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Maeda T, Takayama Y, Goto M, Yoshida H, Fujita T, Tsuyuki Y, Takahashi T. Biofilm production ability of <i>Streptococcus dysgalactiae</i> subsp. <i>equisimilis</i>: relatedness with host, Lancefield group, source, clonal complex, and virulence-associated gene. Jpn J Infect Dis 2022; 76:135-144. [PMID: 36450577 DOI: 10.7883/yoken.jjid.2022.579] [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: 12/05/2022]
Abstract
We assessed the biofilm production ability (BPA) of noninvasive Streptococcus dysgalactiae subsp. equisimilis (SDSE) in humans and companion animals and determined the relationship between bacterial populations with BPA and other host and microbiological features. Sixty-four isolates from companion animals and humans were collected along with host information. We measured BPA using crystal violet staining, in addition to emm typing, multilocus sequence typing, antimicrobial resistance (AMR) phenotyping/genotyping, and virulence-associated gene (VAG) detecting (prtF1-prtF2-lmb-cbp-sicG-srtp1-srtp2-brpA). Differences in the BPA of SDSE from different hosts and sources and different Lancefield groups were assessed. We analyzed the associations between populations with and without BPA (strong, moderate, weak, and no biofilm producers) and emm types, sequence types/clonal complexes (CCs), AMR phenotypes/genotypes, and VAG types. Seventeen, twenty-four, and twelve isolates were strong, moderate, and weak biofilm producers, respectively; eleven showed no BPA. There was a difference in the distribution of populations with BPA between human and animal origins and between isolates of groups G and C. We found an association between populations with BPA and the eye and ear source (vs. the pus and skin source). A relationship was observed between the populations with BPA and CC127 (vs. CC17). We observed no association between the populations with BPA and AMR phenotype/genotype. There was an association between the distribution of populations with BPA and srtp1 expression. Our observations suggest potential associations between populations with BPA and the host species, Lancefield group, source, CC, and VAG type.
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Affiliation(s)
- Takahiro Maeda
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Yoshiko Takayama
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Tomohiro Fujita
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Yuzo Tsuyuki
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
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11
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Kono A, Yoshioka R, Hawke P, Iwashina K, Inoue D, Suzuki M, Narita C, Haruta K, Miyake A, Yoshida H, Tosaka N. Correction to: A case of severe interstitial lung disease after COVID-19 vaccination. QJM 2022; 115:705. [PMID: 35312768 PMCID: PMC9383578 DOI: 10.1093/qjmed/hcac066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Kono
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - R Yoshioka
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - P Hawke
- School of Pharmaceutical Sciences, University of Shizuoka, 51-1 Yada Suruga ward, Shizuoka 422-8526, Japan
| | - K Iwashina
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - D Inoue
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - M Suzuki
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - C Narita
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - K Haruta
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - A Miyake
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - H Yoshida
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - N Tosaka
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
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12
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Kurita G, Tsuyuki Y, Shibata S, Goto M, Maeda T, Yoshida H, Takahashi T. Genotypic and phenotypic features of eye-origin Streptococcus canis isolates from dogs in 2021: relatedness with clonal complex 46 and antimicrobial resistance. Jpn J Infect Dis 2022; 75:583-591. [PMID: 35908873 DOI: 10.7883/yoken.jjid.2022.137] [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] [Indexed: 11/17/2022]
Abstract
Eye (including cornea) and ear canal are major sources of Streptococcus canis in companion animal practice. We aimed to clarify genotypic and phenotypic features of the eye-origin isolates in 2021 compared to ear-origin isolates in 2021 and eye-origin isolates in 2017. Of the 102 isolates in 2021, nine eye-origin isolates were enrolled, whereas twenty-one ear-origin isolates in 2021 and thirteen eye-origin isolates in 2017 were included as controls. Genotypic analyses included virulence-associated gene (VAG; inl, sagA, slo, scp, lbp, fbp, gbp, ap1, fp1, and brp) profiling, S. canis M-like protein (SCM) allele typing, multilocus sequence typing, and antimicrobial resistance (AMR) genotyping: phenotypic analyses contained hemolytic activity (HA) measurement and AMR phenotyping. There was only one 2017-eye-origin isolate with high-level HA, while the others showed low-level HA. We observed no association of the 2021-eye-origin population with detection rate of each VAG. There was no association of the 2021-eye-origin population with main SCM allele 2. We found significant association of the 2021-eye-origin population with main clonal complex (CC) 46 containing sequence type (ST) 46/ST2. There was significant association of the 2021-eye-origin population with AMR phenotypes/genotypes. Our observations suggest the unique microbiological features (CC46 having AMR phenotypes/genotypes) among the 2021-eye-origin population.
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Affiliation(s)
- Goro Kurita
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Omura Satoshi Memorial Institute, Kitasato University, Japan
| | - Yuzo Tsuyuki
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Omura Satoshi Memorial Institute, Kitasato University, Japan.,Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory, Japan
| | | | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Omura Satoshi Memorial Institute, Kitasato University, Japan
| | - Takahiro Maeda
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Omura Satoshi Memorial Institute, Kitasato University, Japan
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Omura Satoshi Memorial Institute, Kitasato University, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Omura Satoshi Memorial Institute, Kitasato University, Japan
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13
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Fukushima Y, Takayama Y, Yoshida H, Goto M, Tsuyuki Y, Takahashi T. Genogrouping of type II-A CRISPR array in Streptococcus dysgalactiae subsp. equisimilis from humans and companion animals compared to multilocus sequence and emm typing. J Infect Chemother 2022; 28:1571-1574. [PMID: 35870789 DOI: 10.1016/j.jiac.2022.07.009] [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: 05/29/2022] [Revised: 07/02/2022] [Accepted: 07/14/2022] [Indexed: 11/19/2022]
Abstract
We evaluated the feasibility of type II-A clustered regularly interspaced short palindromic repeats (CRISPR) array-based genogrouping using Streptococcus dysgalactiae subsp. Equisimilis isolates from 32 humans and 8 companion animals and compared Simpson's diversity index of this genogrouping to those of multilocus sequence typing (MLST) and emm genotyping. CRISPRCasFinder detected a type II-A CRISPR array with the same repeat sequences in three whole-genome sequences. Subsequently, optimized polymerase chain reaction-based II-A CRISPR array amplification was performed to sequence the region around the leader and terminal repeat sequences. We conducted spacer genogrouping by evaluating the spacer sequence similarities. A phylogenetic dendrogram was constructed, and spacer content and polymorphisms were illustrated. Simpson's diversity indices were calculated for the CRISPR array genogrouping, MLST, and emm genotyping. We analyzed the association between the spacer genogroup with sequence type (ST)/emm genotype for each isolate. Of the 40 isolates, 39 with the II-A CRISPR array were amplified, sequenced, and assigned to 13 genogroups (A-M). The Simpson's diversity indices for the three typing were 0.874, 0.914, and 0.924, respectively. We found genetic lineages between genogroup M and ST127/stG245.0 and between genogroup I and ST29/stG485.0. These observations suggest the feasibility of II-A CRISPR array genogrouping and the genetic relationship between spacer genogroups and STs/emm genotypes in the isolates.
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Affiliation(s)
- Yasuto Fukushima
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Yoshiko Takayama
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Division of Clinical Laboratory, Byotai-Seiri Laboratory, 26-2 Ohyaguchikamicho Itabashi-ku, Tokyo, 173-0032, Japan
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Yuzo Tsuyuki
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory, 3-5-5 Ogibashi, Koto-ku, Tokyo, 135-0011, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
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14
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Iwami N, Komiya S, Asada Y, Tatsumi K, Habara T, Kuramoto T, Seki M, Yoshida H, Takeuchi K, Shiotani M, Mukaida T, Odawara Y, Mio Y, Kamiya H. P-384 Efficacy of endometrial microbiome metagenomic analysis with recurrent implantation failure and recurrent pregnancy loss: multicenter study in Japan. Hum Reprod 2022. [DOI: 10.1093/humrep/deac105.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Study question
Does the result of endometrial microbiome metagenomic analysis (EMMA), a next generation sequencing (NGS)-based test of the intrauterine microbiome, have an impact on pregnancy rate after the test?
Summary answer
After recommend treatment with antimicrobial and probiotic therapy, the group diagnosed as dysbiosis by EMMA achieved pregnancy significantly earlier than the group with Normal result.
What is known already
Using NGS technology, EMMA testing can determine the composition of the endometrial microbiome by analysing bacterial 16S ribosomal RNA with a focus on the lactobacillus population. Endometrial flora in patients undergoing in vitro fertilization (IVF) is often composed of pathogenic microorganisms which decrease implantation rates, such as the Enterobacteriaceae family, Staphylococcus spp., Escherichia coli and Gram-negative bacteria. Other studies also indicate that Lactobacillus spp. is a major microorganism in the endometrium. Especially, lactobacillus-dominated microbiota (LDM, defined as > 90% Lactobacillus spp.) in the endometrium has been reported to lead to better pregnancy outcomes than non-LDM (<90% Lactobacillus spp.).
Study design, size, duration
This study was a prospective, multicenter cohort study of 527 patients (under 42 years old) with recurrent implantation failure (RIF) and recurrent pregnancy loss (RPL) at 14 IVF treatment facilities in Japan from June 2019 to August 2021. Defining RIF as three or more failed implantation attempts and RPL as two or more miscarriages, we examined the prognosis of two additional embryo transfers (ETs) after the EMMA test in patients who underwent the test.
Participants/materials, setting, methods
Endometrial tissue was obtained by aspiration from patients in day 15-25 of their menstrual cycles, and sample tissues were analyzed by NGS for EMMA. Participant centers treated patients according to the therapies specified in the reports, including antibiotic treatments, probiotic treatments, re-analysis, and embryo transfer. Multivariate analysis was performed using a generalized linear model with the endpoint of ongoing pregnancy. For the time-to-event analyses, we used Kaplan-Meier survival analysis to compare time to ongoing pregnancy.
Main results and the role of chance
The results of the first EMMA were as follows: 229 patients (43.4%) were normal with Lactobacillus spp. >90% (Normal group), 110 patients (20.9%) were abnormal with less than 90% Lactobacillus spp. and predominantly pathogenic bacteria (Abnormal group), and 188 patients (35.7%) were mild with low absolute amounts of bacteria and ultralow biomass indicating almost sterile (Mild + Ultralow group). There were no significant differences in background factors such as age, duration of infertility, number of previous ETs, or history of deliveries among the three groups. Gardnerella was the most pathogenic bacteria detected in patients with Abnormal EMMA results. All patients in the Abnormal group were treated with antimicrobials and probiotics, and those in Mild + Ultralow group were treated with probiotics. Odds ratio for ongoing pregnancy rate was 1.10(95%CI 0.67-1.82, p = 0.699) in Abnormal group and 1.23(95%CI 0.80-1.89, p = 0.342) in Mild + Ultralow group, respectively. After the intervention, ongoing pregnancies were comparable to those in Normal group.Analysis of time to pregnancy using Kaplan-Meier survival curves showed that Abnormal group had a significantly higher rate of ongoing pregnancies during the observation period than the other groups (p = 0.031).
Limitations, reasons for caution
Since this study was not necessarily limited to euploid embryos transferred after testing, an aging bias cannot be excluded. Since this study was conducted with all patients receiving EMMA, the effectiveness of the test needs to be further validated by comparison to patients without EMMA testing.
Wider implications of the findings
This study is the first multicenter study to demonstrate that the intervention based on EMMA reports improve pregnancy outcome in the patients with RIF and RPL. We suggest that the EMMA procedure, which aims at establishing an appropriate uterine microbiome, may be important for implantation and pregnancy continuation.
Trial registration number
UMIN000036917
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Affiliation(s)
- N Iwami
- Kamiya Ladies Clinic, Center of reproduction , Sapporo, Japan
| | - S Komiya
- Horac IVF Grand Front Osaka Clinic, Center of reproduction , Osaka, Japan
| | - Y Asada
- Asada Ladies Clinic, Center of reproduction , Nagoya, Japan
| | - K Tatsumi
- Umegaoka Women’s Clinic, Center of reproduticion , Tokyo, Japan
| | - T Habara
- Okayama Couple's Clinic, Center of reproduction , Okayama, Japan
| | - T Kuramoto
- Kuramoto Women’s Clinic, Center of reproduction , Hukuoka, Japan
| | - M Seki
- Sekiel Ladies Clinic, Center of reproduction , Takasaki, Japan
| | - H Yoshida
- Sendai ART Clinic, Center of reproduction , Sendai, Japan
| | - K Takeuchi
- Takeuchi Ladies Clinic, Center of reproduction , Aira, Japan
| | - M Shiotani
- Hanabusa Women’s Clinic, Center of reproduction , Kobe, Japan
| | - T Mukaida
- Hiroshima HART Clinic, Center of reproduction , Hiroshima, Japan
| | - Y Odawara
- Fertility Clinic Tokyo, Center of reproduction , Tokyo, Japan
| | - Y Mio
- Mio Fertility Clinic, Center of reproduction , Yonago, Japan
| | - H Kamiya
- Kamiya Ladies Clinic, Center of reproduction , Sapporo, Japan
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15
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Tanaka S, Iida H, Ueno M, Hirokawa F, Yoshida H, Ishii H, Nomi T, Nakai T, Kaibori M, Ikoma H, Noda T, Shinkawa H, Maehira H, Hayami S, Komeda K, Kubo S. Postoperative loss of independence 1 year after liver resection: prospective multicentre study. Br J Surg 2022; 109:e54-e55. [PMID: 35041737 DOI: 10.1093/bjs/znab452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 12/08/2021] [Indexed: 11/14/2022]
Affiliation(s)
- S Tanaka
- Department of Hepato-Biliary-Pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - H Iida
- Division of Gastrointestinal, Breast, and General Surgery, Department of Surgery, Shiga University of Medical Science, Otsu, Japan
| | - M Ueno
- Second Department of Surgery, Wakayama Medical University, Wakayama, Japan
| | - F Hirokawa
- Department of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, Osaka, Japan
| | - H Yoshida
- Department of Medical Statistics, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - H Ishii
- Department of Medical Statistics, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Nomi
- Department of Surgery, Nara Medical University, Kashihara, Nara, Japan
| | - T Nakai
- Department of Surgery, Faculty of Medicine, Kindai University, Osaka-Sayama, Osaka, Japan
| | - M Kaibori
- Department of Surgery, Hirakata Hospital, Kansai Medical University, Hirakata, Osaka, Japan
| | - H Ikoma
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Noda
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - H Shinkawa
- Department of Hepato-Biliary-Pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - H Maehira
- Division of Gastrointestinal, Breast, and General Surgery, Department of Surgery, Shiga University of Medical Science, Otsu, Japan
| | - S Hayami
- Second Department of Surgery, Wakayama Medical University, Wakayama, Japan
| | - K Komeda
- Department of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, Osaka, Japan
| | - S Kubo
- Department of Hepato-Biliary-Pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
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16
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Kono A, Yoshioka R, Hawk P, Iwashina K, Inoue D, Suzuki M, Narita C, Haruta K, Miyake A, Yoshida H, Tosaka N. A case of severe interstitial lung disease after COVID-19 vaccination. QJM 2022; 114:805-806. [PMID: 34618126 PMCID: PMC8522437 DOI: 10.1093/qjmed/hcab263] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Indexed: 11/17/2022] Open
Affiliation(s)
- A Kono
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
- Corresponding author contact information. Akira KONO, Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881). Mail: , TEL: +81-70-6557-8674
| | - R Yoshioka
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - P Hawk
- University of Shizuoka, 51-1 Yada Suruga ward, Shizuoka, Japan (zip code 422-8526)
| | - K Iwashina
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - D Inoue
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - M Suzuki
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - C Narita
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - K Haruta
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - A Miyake
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - H Yoshida
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - N Tosaka
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
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Maeda T, Tsuyuki Y, Goto M, Yoshida H, Fujita T, Takahashi T. Dog/cat-origin quinolone-resistant Streptococcus agalactiae isolates with point mutations in quinolone resistance-determining regions: Relatedness with clonal complex 10. J Infect Chemother 2021; 28:389-395. [PMID: 34848122 DOI: 10.1016/j.jiac.2021.11.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/06/2021] [Accepted: 11/16/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVE We aimed to investigate dog/cat-origin quinolone-resistant Streptococcus agalactiae isolates with point mutations in quinolone resistance-determining regions (QRDRs) and to define the relatedness between quinolone-resistant isolates and their microbiological features of capsular genotype, sequence type (ST)/clonal complex (CC), and antimicrobial resistance (AMR) gene. METHODS With dog/cat-origin 22 isolates, type strain, and human-origin 6 isolates, we performed antimicrobial susceptibility testing by agar plate dilution method using levofloxacin, ciprofloxacin, and moxifloxacin. We also determined amino acid sequences in QRDRs of gyrA/gyrB/parC/parE genes and their point mutations. We conducted capsular genotyping, multilocus sequence typing, and AMR genotyping in our previous investigations. Correlations between quinolone-resistant population and their microbiological features were examined. RESULTS We found dog/cat-origin seven (31.8%) quinolone-resistant isolates harboring minimum inhibitory concentrations (MICs) of levofloxacin 16-32 μg/mL, ciprofloxacin 32 μg/mL, and moxifloxacin 2-4 μg/mL: human three isolates indicated MICs of levofloxacin 16-64 μg/mL, ciprofloxacin 32 μg/mL, and moxifloxacin 2-16 μg/mL. Point mutations Ser81Leu in gyrA and Ser79Phe/Ser79Tyr/Asp83Asn/Gly128Asp in parC were observed among these resistant isolates: mutations Leu495Ile/Val503Ile in parE was found among quinolone-nonresistant isolates. There was a significant correlation between dog/cat-origin quinolone-resistant population and ST10 (p = 0.023)/CC10 (p = 0.021). CONCLUSION To our best knowledge, this is the first report assessing dog/cat-origin quinolone-resistant S. agalactiae. Our observations could be applied in future, by veterinarians while treating dogs and cats with clinical symptoms/signs suggestive of streptococcal infections.
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Affiliation(s)
- Takahiro Maeda
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Yuzo Tsuyuki
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory, 3-5-5 Ogibashi, Koto-ku, Tokyo, 135-0011, Japan
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Tomohiro Fujita
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Department of Clinical Laboratory, Kitasato University Medical Center, 6-100 Arai, Kitamoto, Saitama, 364-8501, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
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Kim JM, Fukushima Y, Yoshida H, Kim JS, Takahashi T. Comparative genomic features of Streptococcus canis based on the pan-genome orthologous group analysis according to sequence type. Jpn J Infect Dis 2021; 75:269-276. [PMID: 34588372 DOI: 10.7883/yoken.jjid.2021.533] [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] [Indexed: 11/17/2022]
Abstract
Using bacterial pan-genome obtained through whole genome sequencing (WGS), coding DNA sequences (CDSs) can be clustered into pan-genome orthologous groups (POGs). We aimed to investigate comparative genomic features of Streptococcus canis based on POG analysis and to determine CDSs specific to prevalent sequence type (ST) 9. Twenty WGS datasets on S. canis strains from invasive and non-invasive specimens were retrieved from the National Center for Biotechnology Information Assembly database. Based on the WGS data, we performed comparative genome hybridization (CGH), pan- and core-genome prediction, Venn diagram test with five ST9 strains, and phylogenetic analysis, with ST determination. We compared the CDSs between seven ST9 and 13 non-ST9 strains. We observed genomic diversity based on CGH and Venn diagram. The predicted pan- and core-genomes contained 4,772 and 1,403 genes, respectively. We found five clades consisting of different STs (ST1, ST44/2, ST13/14, ST21/15/41, and ST9) based on phylogenetic tree. There were differences in four pathways (DNA restriction-modification system, DNA-mediated transposition, extracellular region, and response to oxidative stress) regulated by CDSs specific to ST9. Our findings describe genomic diversity in CGH and Venn diagram, pan- and core-genomes, five clades of genomes consisting of different STs, and unique CDS features associated to ST9.
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Affiliation(s)
- Jung-Min Kim
- Department of Laboratory Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Republic of Korea
| | - Yasuto Fukushima
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Jae-Seok Kim
- Department of Laboratory Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Republic of Korea
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
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Hasegawa K, Nishikawa T, Hirakawa A, Kawasaki M, Tomatsuri S, Nagasaka Y, Nakamura K, Matsumoto K, Mori M, Hirashima Y, Takehara K, Ariyoshi K, Kato T, Yagishita S, Hamada A, Yoshida H, Yonemori K. 813P Efficacy and safety of trastuzumab deruxtecan in HER2-expressing uterine carcinosarcoma (STATICE trial, NCCH1615): A multicenter, phase II clinical trial. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Yagishita S, Nishikawa T, Yoshida H, Shintani D, Sato S, Miwa M, Suzuki M, Yasuda M, Yonemori K, Hasegawa K, Hamada A. 1767P Co-clinical PDX study of trastuzumab deruxtecan in HER2-positive uterine carcinosarcoma (STATICE trial, NCCH1615). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1711] [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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21
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Yoshida H, Coates R. IRPA practical guidance for engagement with the public on radiation and risk. J Radiol Prot 2021; 41:S181-S188. [PMID: 34265753 DOI: 10.1088/1361-6498/ac14d6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
The International Radiation Protection Association, IRPA, promotes the worldwide enhancement of professional competence, radiation protection (RP) culture and practice by providing benchmarks of good practice, as well as encouraging the application of the highest standards of professional conduct, skills and knowledge for the benefit of individuals and society. Enhancing public understanding of radiation and risk is highlighted by experiences from past emergencies, including the accident at Tokyo Electric Power Company's (TEPCO) Fukushima Daiichi Nuclear Power Plant in 2011 and the following post-disaster recovery, as one of the most important challenges, and this challenge is common across almost all public interfaces regarding radiation and risk. To this end IRPA has been continuing a Task Group activity for Public Understanding since 2013. After a series of workshops in various regions of the world, the IRPA draft guidance was developed and issued for consultation of the Associate Societies in 2019. Through these processes, IRPA received a lot of helpful comments and suggestions. IRPA finally published 'Practical Guidance for Engagement with the Public on Radiation and Risk' on the IRPA website in October 2020. The objective of the guidance is two-fold. Firstly, it is to enthuse all of us in our profession to become more active public advocates for RP. Secondly, it is to provide information, experiences and techniques to help us to become more effective and comfortable in this challenging task. This paper provides a key summary of the published IRPA guidance.
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Affiliation(s)
- H Yoshida
- Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
- International Radiation Protection Association (IRPA)
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Maeda T, Fukushima Y, Yoshida H, Goto M, Fujita T, Tsuyuki Y, Takahashi T. Biofilm production ability and associated characteristics of Streptococcus agalactiae isolates from companion animals and humans. J Infect Chemother 2021; 27:1571-1577. [PMID: 34217606 DOI: 10.1016/j.jiac.2021.06.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 05/24/2021] [Revised: 06/18/2021] [Accepted: 06/22/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE We evaluated biofilm production ability (BPA) of Streptococcus agalactiae isolates from companion animals/humans and clarified the relationship between BPA populations and other microbiological features. METHODS Companion animal-/human-origin isolates were collected with host information. We measured BPA using crystal violet staining, via virulence-associated gene profiling (hylB-pavA-pilB-spb1-srtC1-brpA), capsular genotyping, multilocus sequence typing, and antimicrobial resistance (AMR) phenotyping/genotyping. Significant difference in BPA of isolates from different hosts was assessed. We analyzed the association between BPA populations and the virulence genotypes, capsular genotypes, sequence types/clonal complexes, and AMR phenotypes/genotypes. Inhibitory effect of berberine on BPA was evaluated. RESULTS Five, twenty-six, and twenty-six isolates belonged to strong, moderate, and weak biofilm producers, whereas seventeen showed no biofilm production. We defined strong, moderate, or weak biofilm producers as the producer group (n = 57) to conduct a comparative analysis between the producer and non-producer populations. There was a significant correlation between the producer population and vaginal specimen. We found significant associations between the producer group and presence (57.9%) of pilB and between the non-producer population and presence (70.6%) of spb1. There was no association between the producer group and capsular genotypes, sequence types/clonal complexes, and AMR phenotypes/genotypes (except for a significant correlation between the producer group and AMR to minocycline). We confirmed inhibitory effect of berberine at sub-minimum inhibitory concentrations (MICs) against the type strain on BPA. CONCLUSION Our observations suggest that S. agalactiae harboring pilB is more capable of producing biofilms, with berberine inhibitory effect at sub-MICs on BPA.
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Affiliation(s)
- Takahiro Maeda
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Yasuto Fukushima
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Tomohiro Fujita
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Department of Clinical Laboratory, Kitasato University Medical Center, 6-100 Arai, Kitamoto, Saitama, 364-8501, Japan
| | - Yuzo Tsuyuki
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory, 3-5-5 Ogibashi, Koto-ku, Tokyo, 135-0011, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
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Abstract
This study assessed biofilm production ability (BPA) and other microbiological features of Streptococcus canis strains. Companion animal-origin 40 strains from each year (2015/2017) were randomly selected with the host information, and three blood-origin strains from 2 humans/1 dog were included. We measured BPA using crystal violet staining, along with S. canis M-like protein (SCM) allele typing, sequence type (ST) determination, antimicrobial resistance (AMR) phenotyping/genotyping, and virulence-associated gene profiling (gbp-ap1-fp1-brp). BPA measurements revealed that 35 strains with BPA and 48 strains without BPA. There was association of the producer with isolation year (2017). We found association between the non-producer and SCM allele 1/ST9: there was association of the producer with SCM allele 10/ST21. We observed correlation between the producer and presence of AMR genotypes. There was association between the producer and ap1 detection and between non-producer and gbp detection. Our observations suggest the correlation between the producer and other microbiological features (isolation year/SCM allele type 10/ST21/presence of AMR genotypes/ap1 detection).
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Affiliation(s)
- Yasuto Fukushima
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Yuzo Tsuyuki
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan.,Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory, Japan
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
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Abstract
As the decommissioning of Fukushima Daiichi nuclear power plant (NPP) progresses, the issue of how to deal with tritiated water has been attracting attention, both domestically and internationally. This article summarises the live discussion at the International Symposium on Tritiated Water, which was held by the Japan Health Physics Society (JHPS) in June 2020. Two issues - the scientific safety of tritiated water and social consensus building - were covered in the live discussion. The importance of further disclosure and dissemination of information based on steady monitoring was highlighted. It was also pointed out that scientific knowledge and scientific research data are merely the bottom line to achieve social consensus. Through the discussions, it was recognised that the role of JHPS is not only to look at the technical issues of safety, but also to look at social issues from the point of view of radiation protection, and to support the solution of these issues.
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Affiliation(s)
- H Yoshida
- Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan; e-mail:
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25
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Takahashi N, Yoshida H, Kimura H, Kamiyama K, Kurose T, Sugimoto H, Imura T, Yokoi S, Kasuno K, Kurosawa H, Hirayama Y, Naiki H, Hara M, Iwano M. POS-397 Severe diabetic glomerulosclerosis by chronic hypoxic housing of db/db mice; the role of mesangiolysis and podocyte injury with ultrastructural abnormalities. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.415] [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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26
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Yoshida H, Shinkawa T, Hoki R, Ichihara Y, Katagiri J, Saito S, Niinami H. Vertical Ventricular Assist Device Placement to Systemic Right Ventricle for a Patient with Corrected Transposition of the Great Arteries and Mesocardia. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.2084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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27
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Yoshida H, Goto M, Takahiro M, Fukushima Y, Fujita T, Tsuyuki Y, Takahashi T. Intracellular invasion ability of Streptococcus agalactiae among non-invasive isolates from human adults and companion animals in Japan. J Infect Chemother 2021; 27:999-1004. [PMID: 33663930 DOI: 10.1016/j.jiac.2021.02.017] [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: 11/10/2020] [Revised: 02/09/2021] [Accepted: 02/12/2021] [Indexed: 10/22/2022]
Abstract
OBJECTIVE This study evaluated the cell invasion ability (CIA) of Streptococcus agalactiae isolates from humans and companion animals and clarified the relationship between CIA populations and their microbiological features. METHODS Human-origin and companion animal-origin isolates were collected along with host information. We measured CIA using human-lineage colon cancer epithelium (Caco-2) and keratinocyte (HaCaT) cell lines, via virulence-associated gene profiling (bca-rib-bac-lmb-cylE-hylB-pavA-pilB-spb1-srtC1-brpA), capsular genotyping, multilocus sequence typing, and antimicrobial resistance (AMR) phenotyping/genotyping. Significant differences in data regarding CIA into epithelium and keratinocytes and those of isolates from different hosts were assessed. We analyzed the association of CIA populations with the virulence genotypes, capsular genotypes, sequence types/clonal complexes, and AMR phenotypes/genotypes. RESULTS A comparative analysis was performed between human (n = 15) and canine (n = 17) non-invasive isolates. There was a difference in CIA data between Caco-2 and HaCaT cells using human and animal isolates. For percent invasion ability into Caco-2 cells, we designated values ≥ 0.1 as high-frequency CIA and values < 0.1 as low-frequency CIA. Fourteen isolates harbored high-frequency and 18 isolates harbored low-frequency strains. There was no association between the high-frequency population and the virulence genotypes, capsular genotypes, sequence types/clonal complexes, and AMR phenotypes/genotypes. CONCLUSION This is the first report assessing the invasion ability of S. agalactiae into HaCaT and Caco-2 cells. Our observations suggest that S. agalactiae is more capable of entering Caco-2 rather than HaCaT.
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Affiliation(s)
- Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Maeda Takahiro
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Yasuto Fukushima
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Tomohiro Fujita
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Department of Clinical Laboratory, Kitasato University Medical Center, 6-100 Arai, Kitamoto, Saitama, 364-8501, Japan
| | - Yuzo Tsuyuki
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory, 3-5-5 Ogibashi, Koto-ku, Tokyo, 135-0011, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
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Motoi N, Yoshida H, Kiyuna T, Saiga H, Horinouchi H, Yoshida T, Watanabe S, Ohe Y, Ochiai A. FP07.04 Predictive Efficacy of Morphological Biomarkers Based on Digital Pathology for ICI Therapy of Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kato K, Ochi M, Nakamura Y, Kamiya H, Utsunomiya T, Yano K, Michikura Y, Hara T, Kyono K, Takeuchi K, Nakayama T, Iwamasa J, Mio Y, Kuramoto T, Nagata Y, Jo T, Asada Y, Ohishi H, Osada H, Yoshida H. A multi-centre, retrospective case series of oocyte cryopreservation in unmarried women diagnosed with haematological malignancies. Hum Reprod Open 2021; 2021:hoaa064. [PMID: 33501384 PMCID: PMC7810816 DOI: 10.1093/hropen/hoaa064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 05/11/2020] [Revised: 10/23/2020] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Is oocyte cryopreservation an applicable option for fertility preservation in unmarried patients with haematological malignancies? SUMMARY ANSWER Oocyte cryopreservation via the vitrification method is accessible and may be considered an option for fertility preservation in unmarried patients with haematological malignancies. WHAT IS KNOWN ALREADY Haematological malignancies are most commonly observed amongst adolescent and young adult women. Although the survival rate and life expectancy of those with haematological malignancies have improved, chemotherapy and radiotherapy may impair their reproductive potential. Oocyte cryopreservation is thus an ideal option to preserve their fertility. STUDY DESIGN SIZE DURATION This study retrospectively evaluated 193 unmarried patients (age: 26.2 ± 0.4 years) with haematological malignancies, who consulted for oocyte cryopreservation across 20 different fertility centres in Japan between February 2007 and January 2015. The primary outcome measures were the oocyte retrievals and oocyte cryopreservation outcomes. The secondary outcome measures were the outcomes following oocyte warming for IVF. PARTICIPANTS/MATERIALS SETTING METHODS The patients had commenced ovarian stimulation cycles via antagonist, agonist, natural and minimal methods for oocyte retrievals, defined according to the treatment strategy of each respective fertility centre. A vitrification method using the Cryotop safety kit was used for oocyte cryopreservation. ICSIs were used for insemination of warmed oocytes. The endometrial preparation method for embryo transfer was hormonal replacement therapy, except in the case of a patient who underwent a spontaneous ovulatory cycle. MAIN RESULTS AND THE ROLE OF CHANCE Among 193 patients, acute myeloid leukaemia (n = 45, 23.3%) was most common, followed by acute lymphoid leukaemia (n = 38, 19.7%) and Hodgkin's lymphoma (n = 30, 15.5%). In total, 162 patients (83.9%) underwent oocyte retrieval, and oocytes were successfully cryopreserved for 155 patients (80.3%). The mean number of oocyte retrieval cycles and cryopreserved oocytes were 1.7 ± 0.2 and 6.3 ± 0.4, respectively. As of December 2019, 14 patients (9.2%) had requested oocyte warming for IVF. The survival rate of oocytes after vitrification-warming was 85.2% (75/88). The rates of fertilisation and embryo development were 80.0% (60/75) and 46.7% (28/60), respectively. Ten patients (71.4%) had successful embryo transfers, and seven live births (50.0%) were achieved. LIMITATIONS REASONS FOR CAUTION This study was limited by its retrospective nature. Additionally, there remains an insufficient number of cases regarding the warming of vitrified oocytes to reliably conclude whether oocyte cryopreservation is effective for patients with haematological malignancies. Further long-term follow-up study is required. WIDER IMPLICATIONS OF THE FINDINGS Oocyte retrieval and oocyte cryopreservation were accessible for patients with haematological malignancies; however, the number of oocyte retrievals may have been limited due to the initiation of cancer treatments. Acceptable embryonic and pregnancy outcomes could be achieved following oocyte warming; therefore, our results suggest that oocyte cryopreservation can be considered an option for fertility preservation in patients with haematological malignancies. STUDY FUNDING/COMPETING INTERESTS This research received no specific grant from any funding agency in the public, commercial or not-for-profit sectors. The authors declare no conflict of interest. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- K Kato
- Kato Ladies Clinic, Tokyo 160-0023, Japan.,Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan
| | - M Ochi
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Ochi Yume Clinic Nagoya, Nagoya, Aichi 460-0002, Japan
| | - Y Nakamura
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Nakamura Ladies Clinic, Suita, Osaka 564-0051, Japan
| | - H Kamiya
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Kamiya Ladies Clinic, Sapporo, Hokkaido 060-0003, Japan
| | - T Utsunomiya
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,St. Luke Clinic, Oita, 870-0823 Japan
| | - K Yano
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Yano Maternity Clinic, Matsuyama, Ehime 790-0872, Japan
| | - Y Michikura
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Kanazawa Tamago Clinic, Kanazawa, Ishikawa 920-0016, Japan
| | - T Hara
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Hiroshima Prefectural Hospital, Hiroshima 734-8530, Japan
| | - K Kyono
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Kyono ART Clinic Sendai, Sendai, Miyagi 980-0014, Japan
| | - K Takeuchi
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Takeuchi Ladies Clinic, Aira, Kagoshima 899-5421, Japan
| | - T Nakayama
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Adachi Hospital, Chuo-ku, Kyoto 604-0837, Japan
| | - J Iwamasa
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Sofia Ladies Clinic Suidocho, Chuo-ku, Kumamoto 860-0844, Japan
| | - Y Mio
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Mio Fertility Clinic, Yonago, Totttori 683-0008, Japan
| | - T Kuramoto
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Kuramoto Women's Clinic, Hakata-ku, Fukuoka 812-0013, Japan
| | - Y Nagata
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,IVF Nagata Clinic, Chuo-ku, Fukuoka 810-0001, Japan
| | - T Jo
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Jo Clinic, Nishinomiya, Hyogo 860-0844, Japan
| | - Y Asada
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Asada Ladies Clinic, Nagoya, Aichi 450-0002, Japan
| | - H Ohishi
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Hamanomachi Hospital, Fukuoka 810-0072, Japan
| | - H Osada
- Kato Ladies Clinic, Tokyo 160-0023, Japan.,Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Natural ART Clinic Nihombashi, Chuo-ku, Tokyo 103-6008, Japan
| | - H Yoshida
- Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Japan Association of Private Assisted Reproductive Technology Clinics and Laboratories (Japan A-PART), Tokyo 160-0023, Japan.,Kato Ladies Clinic, Tokyo 160-0023, Japan
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Maeda T, Takayama Y, Fujita T, Taniyama D, Tsuyuki Y, Shibayama A, Goto M, Yoshida H, Takahashi T. Comparison between Invasive and Non-Invasive Streptococcus agalactiae Isolates from Human Adults, Based on Virulence Gene Profiles, Capsular Genotypes, Sequence Types, and Antimicrobial Resistance Patterns. Jpn J Infect Dis 2020; 74:316-324. [PMID: 33390429 DOI: 10.7883/yoken.jjid.2020.761] [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] [Indexed: 11/17/2022]
Abstract
This study assessed whether invasive group B Streptococcus (GBS) isolates were similar to non-invasive isolates from adult patients. Invasive and non-invasive GBS isolates were collected from three hospitals and two laboratory centers between January 2015 and October 2019. The isolates were identified by 16S rRNA amplicon sequencing and amplification of the GBS-specific dltS gene. The virulence gene profiles, capsular genotypes, sequence types (STs)/clonal complexes (CCs), and antimicrobial resistance (AMR) phenotypes/genotypes were determined for the 72 invasive and 50 non-invasive isolates that were comparatively analyzed. We observed a significantly decreased rate of rib detection in the invasive isolates compared to that in the non-invasive isolates (77.8% vs. 92.0%, P < 0.05). Additionally, we found significant differences in the prevalence of CC1 (23.6% vs. 46.0%, P < 0.05) and CC26 (12.5% vs. 2.0%, P < 0.05) between invasive and non-invasive populations. However, there were no significant differences in the comparative data of the virulence gene profiles, capsular genotypes, other STs/CCs, and AMR phenotypes/genotypes between the two populations. These findings suggest that both invasive and non-invasive isolates share similar features in terms of virulence gene profile, capsular genotype, ST/CC, and AMR genotype/phenotype (except for the rates of rib detection and CC1/CC26 prevalence).
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Affiliation(s)
- Takahiro Maeda
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Yoshiko Takayama
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan.,Division of Clinical Laboratory, Byotai-Seiri Laboratory, Japan
| | - Tomohiro Fujita
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan.,Department of Clinical Laboratory, Kitasato University Medical Center, Japan
| | - Daisuke Taniyama
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan.,Department of General Internal Medicine, Tokyo Saiseikai Central Hospital, Japan
| | - Yuzo Tsuyuki
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan.,Division of Clinical Laboratory, Sanritsu Laboratory, Japan
| | - Akiyoshi Shibayama
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan.,Department of Clinical Laboratory, Mishuku Hospital, Federation of National Public Service Personnel Mutual Aid Associations, Japan
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
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Yoshida H, Takahashi T, Matsui H. A naturally occurring point mutation in the rocA gene of Streptococcus pyogenes confers the highly virulent phenotype. J Infect Chemother 2020; 27:578-584. [PMID: 33309630 DOI: 10.1016/j.jiac.2020.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 11/02/2020] [Accepted: 11/09/2020] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Mucoid (MTB313) and nonmucoid (MTB314) strains of group A streptococcus (GAS) emm (antiphagocytic M protein) type 1 were simultaneously isolated from a single patient suffering from streptococcal meningitis. In a CD46-expressing transgenic (CD46 Tg) mouse model of subcutaneous infection into both hind footpads with MTB313 or MTB314, MTB313 showed considerably higher virulence than MTB314. METHODS The comparative genomic analysis based on the whole-genome sequencing revealed that MTB313 possessed an amber codon within rocA (sensory transduction protein kinase), but MTB314 did not carry this stop codon. Thereafter, MAT101 was generated from MTB313 by introducing pRocA, which contained the full-length rocA from MTB314, into the cloning plasmid pLZ12-Km2. MAT100 was also generated by introducing pLZ12-Km2 into MTB313. RESULTS Although MTB313 and MAT100 showed large quantities of cell-associated hyaluronic acid (HA) in the culture pellets, MTB314 and MAT101 showed small quantities of HA production. Finally, higher mortalities were observed in the MTB313- or MAT100-infected CD46 Tg mice than the MTB314- or MAT101-infected CD46 Tg mice. CONCLUSIONS These data indicate the possibility that a spontaneous point mutation in the rocA gene led to the highly virulent phenotype of M1 GAS.
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Affiliation(s)
- Haruno Yoshida
- Department of Infection Control and Immunology, Omura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Takashi Takahashi
- Department of Infection Control and Immunology, Omura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hidenori Matsui
- Department of Infection Control and Immunology, Omura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.
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32
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Fujiwara K, Fujiwara H, Yoshida H, Satoh T, Yonemori K, Nagao S, Matsumoto T, Kobayashi H, Bourgeois H, Harter P, Mosconi A, Palacio I, Reinthaller A, Fujita T, Bloomfield R, Pujade-Lauraine E, Ray-Coquard I. 236O Olaparib (ola) plus bevacizumab (bev) as maintenance (mx) therapy in patients (pts) with newly diagnosed advanced ovarian carcinoma (OC): Japan subset of the PAOLA-1 trial. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Affiliation(s)
- M. Samadi
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University Putra Malaysia, Serdang, Selangor, Malaysia
| | - Z. Zainal Abidin
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University Putra Malaysia, Serdang, Selangor, Malaysia
| | - H. Yoshida
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University Putra Malaysia, Serdang, Selangor, Malaysia
| | - R. Yunus
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University Putra Malaysia, Serdang, Selangor, Malaysia
| | - D.R. Awang Biak
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University Putra Malaysia, Serdang, Selangor, Malaysia
| | - C. H. Lee
- Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP), University Putra Malaysia, Serdang, Selangor, Malaysia
| | - E. H Lok
- Civil Culture Unit, Forest Research Institute Malaysia, Kepong, Selangor, Darul Ehsan, Malaysia
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34
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Yoshida H, Goto M, Fukushima Y, Maeda T, Tsuyuki Y, Takahashi T. Intracellular Invasion Ability and Associated Microbiological Characteristics of Streptococcus canis in Isolates from Japan. Jpn J Infect Dis 2020; 74:129-136. [PMID: 32863352 DOI: 10.7883/yoken.jjid.2020.382] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study evaluated the cell invasion ability (CIA) of Streptococcus canis isolates, and clarified the relationship between high-frequency CIA and its microbiological features. Of the companion animal-origin isolates (n = 117) that were obtained in 2017, 40 isolates were randomly selected with the host information, with two human blood-origin isolates included. CIA was measured using human colon carcinoma epithelium and the hemolytic activity (HA) using sheep blood, along with S. canis M-like protein (SCM) allele typing, sequence type (ST) determination, and antimicrobial resistance (AMR) phenotyping/genotyping. CIA measurements revealed that 19 and 24 isolates had high- and low-frequencies, respectively. HA assessment revealed that 24 and 19 isolates were categorized as high- and low- level, respectively. No difference was observed in the high-/low-level HA between the high- /low-frequency CIA populations. A significant difference was found in the high-/low-frequency CIA between the SCM group I/II populations. Additionally, a significantly higher CIA was found in the SCM allele type 10/type 11 than in the others. A significant association was observed between high-frequency CIA and the ST21/ST41 populations. No difference was found in the high-/low-frequency CIA between the presence and absence of the AMR phenotype/genotype. These observations suggest a relationship between high-frequency CIA and its microbiological characteristics (SCM allele type 10/type 11 or ST21/ST41).
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Affiliation(s)
- Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Yasuto Fukushima
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Takahiro Maeda
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
| | - Yuzo Tsuyuki
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan.,Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Ōmura Satoshi Memorial Institute, Kitasato University, Japan
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35
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Samadi M, Zainal Abidin Z, Yoshida H, Yunus R, Awang Biak DR. Towards Higher Oil Yield and Quality of Essential Oil Extracted from Aquilaria malaccensis Wood via the Subcritical Technique. Molecules 2020; 25:molecules25173872. [PMID: 32858782 PMCID: PMC7503260 DOI: 10.3390/molecules25173872] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 07/17/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 11/16/2022] Open
Abstract
A method that delivers a high yield and excellent quality of essential oil, which retains most of its value-added compounds, and undergoes least change after the extraction process, is greatly sought after. Although chemical free methods are acceptable, they call for an extensive processing time, while the yield and quality from these methods are often disappointing. This work utilizes subcritical water technology to address these issues. In this undertaking, essential oil was extracted from Aquilaria malaccensis wood by way of subcritical conditions, and characterized through gas chromatography/mass spectroscopy (GC/MS). Optimization through response surface methodology revealed temperature to be the most critical factor for the extraction process, while the optimum conditions for temperature, sample-to-solvent ratio, and time for subcritical water extraction was revealed as 225 °C, 0.2 gr/mL, and 17 min, respectively. The subcritical water extraction technique involves two simultaneous processes, which are based on good fitting to the two-site kinetic and second order model. In comparison to the hydrodistillation method, GC/MS results indicated that the quality of A. malaccensis’ wood oils, derived through the subcritical water technique, are of significantly better quality, while containing many constructive value-added compounds, such as furfural and guaiacol, which are useful for the production of pesticides and medicines. Pore size, functional groups, and morphology analysis revealed the occurrence of substantial damage to the samples, which facilitated an improved extraction of bio-products. In comparison to conventional methods, the use of the subcritical method not only involves a shorter processing time, but also delivers a higher oil yield and quality.
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Abstract
Electro- and diffusio- phoresis of particles correspond respectively to the transport of particles under electric field and solute concentration gradients. Such interfacial transport phenomena take their origin in a diffuse layer close to the particle surface, and the motion of the particle is force-free. In the case of electrophoresis, it is further expected that the stress acting on the moving particle vanishes locally as a consequence of local electroneutrality. But the argument does not apply to diffusiophoresis, which takes its origin in solute concentration gradients. In this paper we investigate further the local and global force balance on a particle undergoing diffusiophoresis. We calculate the local tension applied on the particle surface and show that, counter-intuitively, the local force on the particle does not vanish for diffusiophoresis, in spite of the global force being zero as expected. Incidentally, our description allows to clarify the osmotic balance in diffusiophoresis, which has been a source of debates in the recent years. We explore various cases, including hard and soft interactions, as well as porous particles, and provide analytic predictions for the local force balance in these various systems. The existence of local stresses may induce deformation of soft particles undergoing diffusiophoresis, hence suggesting applications in terms of particle separation based on capillary diffusiophoresis.
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Affiliation(s)
- S. Marbach
- Ecole Normale Supérieure, PSL Research University, CNRS, 24 rue Lhomond, Paris, France
- Courant Institute of Mathematical Sciences, NYU, 251 Mercer Street, New York, NY, USA
| | - H. Yoshida
- Ecole Normale Supérieure, PSL Research University, CNRS, 24 rue Lhomond, Paris, France
- Toyota Central R&D Labs., Inc., Bunkyo-ku, Tokyo 112-0004, Japan
| | - L. Bocquet
- Ecole Normale Supérieure, PSL Research University, CNRS, 24 rue Lhomond, Paris, France
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37
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Taniyama D, Maruki T, Maeda T, Yoshida H, Takahashi T. Repetitive cellulitis caused by Streptococcus agalactiae isolates with different genotypic and phenotypic features in a patient having upper extremity with lymphedema after mastectomy and axillary lymph node dissection. IDCases 2020; 20:e00793. [PMID: 32420032 PMCID: PMC7218289 DOI: 10.1016/j.idcr.2020.e00793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 04/18/2020] [Accepted: 05/01/2020] [Indexed: 01/22/2023] Open
Abstract
•This is 3 episodes of repetitive cellulitis due to S. agalactiae (GBS) isolates. •There was the possibility of GBS colonization in the genitourinary tracts. •Blood-origin 3 isolates showed different genotypic and phenotypic features. •These findings suggest the heterogeneity in strains endogenous to this patient. •Our report supports the reinfection with endogenous GBS rather than recurrence.
Previously reported cases of recurrent cellulitis/erysipelas affecting chronically lymphedematous skin regions have been demonstrated to be due to Streptococcus agalactiae isolates with closely related genetic background which may be suggestive of relapse rather than reinfection. Herein, we report the occurrence of three episodes of repetitive cellulitis caused by S. agalactiae strains with different genotypic and phenotypic characteristics, including different antimicrobial susceptibility patterns (tetracycline, macrolide/lincosamide, and fluoroquinolone classes), in the left upper extremity of a patient with lymphedema, following left mastectomy and axillary lymph node dissection. The genotypic and phenotypic characteristics of the three isolates were confirmed based on the random amplified polymorphic DNA patterns, DNA profiles of virulence factors (bca–rib–bac–lmb–cylE), data on biofilm formation and cell invasion, antimicrobial susceptibility testing results, antimicrobial resistance (AMR) genotypes, and amino acid mutations associated with AMR. These results revealed that reinfection with S. agalactiae, rather than recurrence, occurred during the three episodes. In conclusion, microbiologic studies such as blood cultures or tissue cultures are certainly helpful in the management of recurrent infections or invasive infections such as bacteremia in order to better target antimicrobial therapy, regardless of the data previously presented.
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Affiliation(s)
- Daisuke Taniyama
- Department of General Internal Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan
- Corresponding author at: Department of General Internal Medicine, Tokyo Saiseikai Central Hospital, 1-4-17 Mita, Minato-ku, Tokyo, 108-0073, Japan.
| | - Taketomo Maruki
- Department of General Internal Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | - Takahiro Maeda
- Laboratory of Infectious Diseases, Kitasato Institute for Life Sciences & Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Kitasato Institute for Life Sciences & Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Kitasato Institute for Life Sciences & Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
- Corresponding author at: Laboratory of Infectious Diseases, Kitasato Institute for Life Sciences & Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
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Ramírez-Hinestrosa S, Yoshida H, Bocquet L, Frenkel D. Studying polymer diffusiophoresis with non-equilibrium molecular dynamics. J Chem Phys 2020; 152:164901. [PMID: 32357768 DOI: 10.1063/5.0007235] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
We report a numerical study of the diffusiophoresis of short polymers using non-equilibrium molecular dynamics simulations. More precisely, we consider polymer chains in a fluid containing a solute that has a concentration gradient and examine the variation of the induced diffusiophoretic velocity of the polymer chains as the interaction between the monomer and the solute is varied. We find that there is a non-monotonic relation between the diffusiophoretic mobility and the strength of the monomer-solute interaction. In addition, we find a weak dependence of the mobility on the length of the polymer chain, which shows clear difference from the diffusiophoresis of a solid particle. Interestingly, the hydrodynamic flow through the polymer is much less screened than for pressure driven flows.
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Affiliation(s)
- S Ramírez-Hinestrosa
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - H Yoshida
- LPS, UMR CNRS 8550, École Normale Supérieure, 24 rue Lhomond, 75005 Paris, France
| | - L Bocquet
- LPS, UMR CNRS 8550, École Normale Supérieure, 24 rue Lhomond, 75005 Paris, France
| | - D Frenkel
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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39
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Bryant PA, Yoshida H, Butlin M, Wood MD, Raines K, Bannon A, Hunak S. SRP workshop on 'communication of radiation risk in the modern world'. J Radiol Prot 2020; 40:319-326. [PMID: 31550693 DOI: 10.1088/1361-6498/ab4773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Communicating radiation risk is an important part of radiation protection. However, achieving effective risk communication is challenging given the negative public perception of radiation and conflicting views presented by both the media and social media. Noting the importance of building capacity amongst radiation protection professionals to communicate radiation risk effectively, the Society for Radiological Protection (SRP) ran a half-day workshop at its Annual Conference on the 22nd May 2019 in Scarborough Spa, UK. A number of key factors were identified that should be considered when communicating with the public, post a nuclear or radiological incident, communicating with government and local authorities, and communicating with the public as part of public outreach. The following memorandum provides a summary of the points presented and discussed. It also outlines proposed future activities of the SRP, focused on further developing the communications aspect of radiation professionals' practice.
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Affiliation(s)
- P A Bryant
- The Society for Radiological Protection, DS009, Dartington Hall, Devon, TQ9 6EN, United Kingdom. University of Surrey, Department of Physics, Stag Hill, Guildford, GU2 7XH United Kingdom
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40
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Fukushima Y, Tsuyuki Y, Goto M, Yoshida H, Takahashi T. Novel Quinolone Nonsusceptible Streptococcus canis Strains with Point Mutations in Quinolone Resistance-Determining Regions and Their Related Factors. Jpn J Infect Dis 2020; 73:242-249. [PMID: 32009056 DOI: 10.7883/yoken.jjid.2019.392] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study investigated quinolone nonsusceptible Streptococcus canis with point mutations in quinolone resistance-determining regions (QRDRs). After selecting targets from 185 isolates, we tested antimicrobial susceptibility using levofloxacin, ciprofloxacin, norfloxacin, and moxifloxacin. We also determined the amino acid sequences of QRDRs in gyrA/gyrB/parC/parE genes and their point mutations. Finally, we performed S. canis-derived M-like protein (SCM) allele typing, multilocus sequence typing, and antimicrobial resistance genotyping. Correlations between nonsusceptible strains and their related factors were examined. We found 13 (7.0%) nonsusceptible isolates consisting of two classes, high-level minimum inhibitory concentrations (MICs) (n = 7, 3.8%) and low-level MICs (n = 6, 3.2%). Mutations Ser81Phe/Ser81Tyr/Glu85Lys in gyrA, Ser67Phe/Ser67Tyr/Asp71Tyr in parC, Asp438Asn in parE, and Gly408Asp in gyrB were observed in these nonsusceptible strains. Common mutations included Ser81 and Ser67/Asp71; additionally, we found one strain each with Glu85, Asp438, and Gly408 mutations. There was a significant correlation between nonsusceptible isolates and the presence of SCM allele type 2, sequence type 46, tetracyclineresistance genes, and macrolide/lincosamide-resistance genes. These results could be used in future, by veterinarians while treating companion animals with clinical symptoms of streptococcal infections.
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Affiliation(s)
- Yasuto Fukushima
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Kitasato Institute for Life Sciences, Kitasato University
| | - Yuzo Tsuyuki
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Kitasato Institute for Life Sciences, Kitasato University.,Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Kitasato Institute for Life Sciences, Kitasato University
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Kitasato Institute for Life Sciences, Kitasato University
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Kitasato Institute for Life Sciences, Kitasato University
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41
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Maeda T, Tsuyuki Y, Fujita T, Fukushima Y, Goto M, Yoshida H, Takahashi T. Comparison of Streptococcus agalactiae Isolates from Humans and Companion Animals Reveals Genotypic and Phenotypic Differences. Jpn J Infect Dis 2020; 73:308-315. [PMID: 32009057 DOI: 10.7883/yoken.jjid.2019.441] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study assessed whether Streptococcus agalactiae isolates from companion animals differed from those of human origin. Beta-hemolytic S. agalactiae was collected from a veterinary laboratory center and a university hospital. Strains were identified using 16S rRNA amplicon sequencing and amplification of the species-specific dltS gene. We conducted virulence gene profiling, capsular genotyping, determination of clonal complex (CC), and antimicrobial resistance (AMR) phenotyping or genotyping. The 20 non-invasive isolates obtained from animals and 15 non-invasive isolates from adult humans were comparatively analyzed in this study. We found significant differences in the virulence gene profiles of bca-rib-lmb-cylE (40.0% vs. 93.3%) and the possession of bac (30.0% vs. 0%) between animal-origin and human-origin non-invasive strains. We observed a significant difference in the distribution of CC1 between the two non-invasive populations. There were significant differences in the prevalence of tetracycline resistance genotypes (60.0% vs. 20.0%) and absence of AMR genotypes (30.0% vs. 80.0%), and AMR rates of tetracycline (35.0% vs. 0%) and fluoroquinolone (20.0% vs. 66.7%) between the two non-invasive populations. These observations suggest that there were different features, in terms of virulence gene profile, CC, and AMR genotype/phenotype in the non-invasive isolates of animal origin compared to those of human origin.
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Affiliation(s)
- Takahiro Maeda
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Kitasato Institute for Life Sciences, Kitasato University, Japan
| | - Yuzo Tsuyuki
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Kitasato Institute for Life Sciences, Kitasato University, Japan.,Division of Clinical Laboratory, Sanritsu Zelkova Veterinary Laboratory, Japan
| | - Tomohiro Fujita
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Kitasato Institute for Life Sciences, Kitasato University, Japan.,Department of Clinical Laboratory, Kitasato University Medical Center, Japan
| | - Yasuto Fukushima
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Kitasato Institute for Life Sciences, Kitasato University, Japan
| | - Mieko Goto
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Kitasato Institute for Life Sciences, Kitasato University, Japan
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Kitasato Institute for Life Sciences, Kitasato University, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences & Kitasato Institute for Life Sciences, Kitasato University, Japan
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42
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Kuno I, Takayanagi D, Yoshida H, Hirose S, Murakami N, Uno M, Ishikawa M, Matsuda M, Asami Y, Shimada Y, Okuma K, Kohno T, Itami J, Shiraishi K, Kato T. Impact of genomic alterations and HPV genotypes on clinical outcomes of Japanese patients with locally advanced cervical cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz426.017] [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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43
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Kwag MS, Chae KY, Cha SM, Duy NN, Iribe K, Kim DH, Kim MJ, Oka S, Teranishi T, Ueno Y, Yoshida H. Commissioning of a portable ionization chamber at high counting rate using heavy ion beams. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06749-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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44
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Sakamoto A, Kurosaki M, Tsuchiya K, Abe T, Ogawa C, Soda T, Kimura H, Kondo M, Tsuji K, Koichiro F, Shigeno M, Jyoko K, Narita R, Uchida Y, Yoshida H, Akahane T, Kobashi H, Mitsuda A, Marusawa H, Izumi N. The efficacy and safety of lenvatinib in patients who did not meet the inclusion criteria of the phase III trial (REFLECT trial) and those with BCLC Stage B hepatocellular carcinoma: A nationwide multicenter study in Japan. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.078] [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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45
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Kiyuna T, Motoi N, Yoshida H, Watanabe S, Ohe Y, Ochiai A. P1.09-11 Influences of Sampling Method to Morphological Feature Measurement of Lung Cancer Cell. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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46
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Motoi N, Yoshida H, Kiyuna T, Horinouchi H, Kohno T, Watanabe S, Ohe Y, Ochiai A. MA15.03 Exploring Digital Pathology-Based Morphological Biomarkers for a Better Patients’ Selection to the Immune Checkpoint Inhibitor of Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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47
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Yoshida Y, Yamada T, Matsuoka H, Hirata K, Kuramochi H, Kosugi C, Takahashi M, Fukazawa A, Sonoda H, Matsuda A, Watanabe T, Koizumi M, Aisu N, Hasegawa S, Yoshida H, Sakamoto K, Ishida H, Koda K. Biweekly TAS-102 and bevacizumab as a third-line chemotherapy for metastatic colorectal cancer: A phase II multicenter clinical trial (TAS-CC4 study). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz246.098] [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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Nagase T, Komatsu M, So YG, Ishida T, Yoshida H, Kawaguchi Y, Tanaka Y, Saitoh K, Ikarashi N, Kuwahara M, Nagao M. Smectic Liquid-Crystalline Structure of Skyrmions in Chiral Magnet Co_{8.5}Zn_{7.5}Mn_{4}(110) Thin Film. Phys Rev Lett 2019; 123:137203. [PMID: 31697552 DOI: 10.1103/physrevlett.123.137203] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Indexed: 06/10/2023]
Abstract
The organizing of magnetic skyrmions shows several forms similar to atomic arrays of solid states. Using Lorentz transmission electron microscopy, we report the first direct observation of a stable liquid-crystalline structure of skyrmions in chiral magnet Co_{8.5}Zn_{7.5}Mn_{4}(110) thin film, caused by magnetic anisotropy and chiral surface twist. Elongated skyrmions are oriented and periodically arranged only in the ⟨110⟩ directions, whereas they exhibit short-range order along the ⟨001⟩ directions, indicating a smectic skyrmion state. In addition, skyrmions possess anisotropic interaction with an opposite sign depending on the crystal orientation, in contrast to existing isotropic interaction.
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Affiliation(s)
- T Nagase
- Department of Electrical, Electronic Engineering and Information Engineering, School of Engineering, Nagoya University, Nagoya 464-8601, Japan
| | - M Komatsu
- Department of Materials Science, Graduate School of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Y G So
- Department of Materials Science, Graduate School of Engineering Science, Akita University, Akita 010-8502, Japan
| | - T Ishida
- Advanced Measurement Technology Center, Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8601, Japan
| | - H Yoshida
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - Y Kawaguchi
- Department of Applied Physics, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan
| | - Y Tanaka
- Department of Applied Physics, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan
| | - K Saitoh
- Advanced Measurement Technology Center, Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8601, Japan
| | - N Ikarashi
- Center for Integrated Research of Future Electronics, Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8601, Japan
- Department of Electronics, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - M Kuwahara
- Advanced Measurement Technology Center, Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8601, Japan
| | - M Nagao
- Center for Integrated Research of Future Electronics, Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8601, Japan
- Department of Electronics, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
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49
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Tojo H, Sasao H, Oyama N, Tsubakimoto K, Yoshida H. Laser transfer technique using wavefront correction and beam homogenizers in Thomson scattering diagnostics. Fusion Engineering and Design 2019. [DOI: 10.1016/j.fusengdes.2019.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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50
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Fujita T, Yoshida H, Osaka S, Hirose Y, Goto M, Nagano N, Takahashi T. Comparison of Characteristics of Streptococcus dysgalactiae subsp. equisimilis Isolates Causing Repetitive vs Single Infections. Ann Lab Med 2019; 39:488-492. [PMID: 31037868 PMCID: PMC6502950 DOI: 10.3343/alm.2019.39.5.488] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/23/2019] [Accepted: 04/10/2019] [Indexed: 11/19/2022] Open
Abstract
No study has described Streptococcus dysgalactiae subsp. equisimilis (SDSE) isolates that cause repetitive infections (recurrence and reinfection). We compared the microbiological characteristics of SDSE causing repetitive infections with those causing single infections. Three patients with invasive infections were identified based on their medical records, and multiple SDSE isolates were collected at intervals over three weeks, using a laboratory repository. Isolates from 12 patients with single-episode infections served as controls. Six isolates were collected from three patients with first and second episodes of infection. All isolates causing either repetitive or single-episode infection were subjected to emm typing, multilocus sequence typing (MLST), pulsed-field gel electrophoresis (PFGE), and random amplified polymorphic DNA (RAPD) analyses. Amplification of five virulence genes (sicG, prtF1, prtF2, lmb, and cbp), biofilm formation (BF), and cell invasion abilities (CIAs) were measured as virulent phenotypes. We observed close genetic similarities in the data obtained by emm typing, MLST, PFGE, and RAPD in four isolates from two patients, suggesting recurrence, whereas two isolates from one patient indicated genetic differences in these data, suggesting re-infection. The presence of the five virulence genes and the BF and CIA measurements appeared not to contribute to repetitive infections, compared with isolates causing single-episode infection. In conclusion, clinicians encountering patients with repetitive infections should be aware of both possibilities: recurrence with closely related strains and reinfection with different strains.
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Affiliation(s)
- Tomohiro Fujita
- Department of Clinical Laboratory, Kitasato University Medical Center, Saitama, Japan.,Laboratory of Infectious Diseases, Kitasato Institute for Life Sciences, Kitasato University, Tokyo, Japan
| | - Haruno Yoshida
- Laboratory of Infectious Diseases, Kitasato Institute for Life Sciences, Kitasato University, Tokyo, Japan
| | - Shunsuke Osaka
- Department of Health and Medical Sciences, Shinshu University Graduate School of Medicine, Nagano, Japan
| | - Yoneji Hirose
- Department of Clinical Laboratory, Kitasato University Medical Center, Saitama, Japan
| | - Mieko Goto
- Laboratory of Infectious Diseases, Kitasato Institute for Life Sciences, Kitasato University, Tokyo, Japan
| | - Noriyuki Nagano
- Department of Health and Medical Sciences, Shinshu University Graduate School of Medicine, Nagano, Japan
| | - Takashi Takahashi
- Laboratory of Infectious Diseases, Kitasato Institute for Life Sciences, Kitasato University, Tokyo, Japan.
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